Conditionally install jpm in meson.

This means we no longer need to guess paths after install.
Custom directory layouts can now be better supported at install
time without need for environment variables.

.builds/meson.yml

@@ -0,0 +1,12 @@
+image: openbsd/latest
+sources:
+- https://git.sr.ht/~bakpakin/janet
+packages:
+- meson
+tasks:
+- build: |
+    cd janet
+    meson setup build --buildtype=release
+    cd build
+    ninja
+    ninja test

.builds/meson_min.yml

@@ -0,0 +1,23 @@
+image: openbsd/latest
+sources:
+- https://git.sr.ht/~bakpakin/janet
+packages:
+- meson
+tasks:
+- build: |
+    cd janet
+    meson setup build --buildtype=release
+    cd build
+    meson configure -Dsingle_threaded=true
+    meson configure -Dnanbox=false
+    meson configure -Ddynamic_modules=false
+    meson configure -Ddocstrings=false
+    meson configure -Dnet=false
+    meson configure -Dsourcemaps=false
+    meson configure -Dpeg=false
+    meson configure -Dassembler=false
+    meson configure -Dint_types=false
+    meson configure -Dtyped_arrays=false
+    meson configure -Dreduced_os=true
+    meson configure -Dprf=false
+    ninja # will not pass tests but should build

CHANGELOG.md

@@ -1,7 +1,46 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
-## Unreleased - ???
+## 1.10.1 - 2020-06-14
+- Hardcode default jpm paths on install so env variables are needed in fewer cases.
+- Add `:no-compile` to `create-executable` option for jpm.
+- Fix bug with the `trace` function.
+- Add `:h`, `:a`, and `:c` flags to `thread/new` for creating new kinds of threads.
+  By default, threads will now consume much less memory per thread, but sending data between
+  threads may cost more.
+- Fix flychecking when using the `use` macro.
+- CTRL-C no longer exits the repl, and instead cancels the current form.
+- Various small bug fixes
+- New MSI installer instead of NSIS based installer.
+- Make `os/realpath` work on windows.
+- Add polymorphic `compare` functions for comparing numbers.
+- Add `to` and `thru` peg combinators.
+- Add `JANET_GIT` environment variable to jpm to use a specific git binary (useful mainly on windows).
+- `asm` and `disasm` functions now use keywords instead of macros for keys. Also
+  some slight changes to the way constants are encoded (remove wrapping `quote` in some cases).
+- Expose current macro form inside macros as (dyn :macro-form)
+- Add `tracev` macro.
+- Fix compiler bug that emitted incorrect code in some cases for while loops that create closures.
+- Add `:fresh` option to `(import ...)` to overwrite the module cache.
+- `(range x y 0)` will return an empty array instead of hanging forever.
+- Rename `jpm repl` to `jpm debug-repl`.
+
+## 1.9.1 - 2020-05-12
+- Add :prefix option to declare-source
+- Re-enable minimal builds with the debugger.
+- Add several flags for configuring Janet on different platforms.
+- Fix broken meson build from 1.9.0 and add meson to CI.
+- Fix compilation issue when nanboxing is disabled.
+
+## 1.9.0 - 2020-05-10
+- Add `:ldflags` option to many jpm declare functions.
+- Add `errorf` to core.
+- Add `lenprefix` combinator to PEGs.
+- Add `%M`, `%m`, `%N`, and `%n` formatters to formatting functions. These are the
+  same as `%Q`, `%q`, `%P`, and `%p`, but will not truncate long values.
+- Add `fiber/root`.
+- Add beta `net/` module to core for socket based networking.
+- Add the `parse` function to parse strings of source code more conveniently.
 - Add `jpm rule-tree` subcommand.
 - Add `--offline` flag to jpm to force use of the cache.
 - Allow sending pointers and C functions across threads via `thread/send`.
@@ -22,7 +61,7 @@ All notable changes to this project will be documented in this file.
 - Add os/umask
 - Add os/perm-int
 - Add os/perm-string
-- Add :octal-permissions option for os/stat.
+- Add :int-permissions option for os/stat.
 - Add `jpm repl` subcommand, as well as `post-deps` macro in project.janet files.
 - Various bug fixes.
 

CONTRIBUTING.md

@@ -35,8 +35,9 @@ may require changes before being merged.
   [astyle](http://astyle.sourceforge.net/astyle.html). You will probably need
   to install this, but it can be installed with most package managers.
 
-  For janet code, the use lisp indentation with 2 spaces. One can use janet.vim to
-  do this indentation, or approximate as close as possible.
+  For janet code, use lisp indentation with 2 spaces. One can use janet.vim to
+  do this indentation, or approximate as close as possible. There is a janet formatter
+  in [spork](https://github.com/janet-lang/spork.git) that can be used to format code as well.
 
 ## C style
 

Makefile

@@ -96,6 +96,7 @@ JANET_CORE_SOURCES=src/core/abstract.c \
 				   src/core/io.c \
 				   src/core/marsh.c \
 				   src/core/math.c \
+				   src/core/net.c \
 				   src/core/os.c \
 				   src/core/parse.c \
 				   src/core/peg.c \
@@ -148,7 +149,7 @@ build/janet.c: build/janet_boot src/boot/boot.janet
 ##### Amalgamation #####
 ########################
 
-SONAME=libjanet.so.1.9
+SONAME=libjanet.so.1.10
 
 build/shell.c: src/mainclient/shell.c
 	cp $< $@
@@ -194,12 +195,12 @@ valgrind: $(JANET_TARGET)
 test: $(JANET_TARGET) $(TEST_PROGRAMS)
 	for f in test/suite*.janet; do ./$(JANET_TARGET) "$$f" || exit; done
 	for f in examples/*.janet; do ./$(JANET_TARGET) -k "$$f"; done
-	./$(JANET_TARGET) -k auxbin/jpm
+	./$(JANET_TARGET) -k jpm
 
 valtest: $(JANET_TARGET) $(TEST_PROGRAMS)
 	for f in test/suite*.janet; do $(VALGRIND_COMMAND) ./$(JANET_TARGET) "$$f" || exit; done
 	for f in examples/*.janet; do ./$(JANET_TARGET) -k "$$f"; done
-	$(VALGRIND_COMMAND) ./$(JANET_TARGET) -k auxbin/jpm
+	$(VALGRIND_COMMAND) ./$(JANET_TARGET) -k jpm
 
 callgrind: $(JANET_TARGET)
 	for f in test/suite*.janet; do valgrind --tool=callgrind ./$(JANET_TARGET) "$$f" || exit; done
@@ -213,7 +214,7 @@ dist: build/janet-dist.tar.gz
 build/janet-%.tar.gz: $(JANET_TARGET) \
 	src/include/janet.h src/conf/janetconf.h \
 	jpm.1 janet.1 LICENSE CONTRIBUTING.md $(JANET_LIBRARY) $(JANET_STATIC_LIBRARY) \
-	build/doc.html README.md build/janet.c build/shell.c auxbin/jpm
+	build/doc.html README.md build/janet.c build/shell.c jpm
 	$(eval JANET_DIST_DIR = "janet-$(shell basename $*)")
 	mkdir -p build/$(JANET_DIST_DIR)
 	cp -r $^ build/$(JANET_DIST_DIR)/
@@ -232,6 +233,10 @@ build/doc.html: $(JANET_TARGET) tools/gendoc.janet
 ##### Installation #####
 ########################
 
+build/jpm: jpm $(JANET_TARGET)
+	$(JANET_TARGET) tools/patch-jpm.janet jpm build/jpm "--libpath=$(LIBDIR)" "--headerpath=$(INCLUDEDIR)/janet" "--binpath=$(BINDIR)"
+	chmod +x build/jpm
+
 .INTERMEDIATE: build/janet.pc
 build/janet.pc: $(JANET_TARGET)
 	echo 'prefix=$(PREFIX)' > $@
@@ -247,7 +252,7 @@ build/janet.pc: $(JANET_TARGET)
 	echo 'Libs: -L$${libdir} -ljanet' >> $@
 	echo 'Libs.private: $(CLIBS)' >> $@
 
-install: $(JANET_TARGET) build/janet.pc
+install: $(JANET_TARGET) build/janet.pc build/jpm
 	mkdir -p '$(DESTDIR)$(BINDIR)'
 	cp $(JANET_TARGET) '$(DESTDIR)$(BINDIR)/janet'
 	mkdir -p '$(DESTDIR)$(INCLUDEDIR)/janet'
@@ -258,7 +263,7 @@ install: $(JANET_TARGET) build/janet.pc
 	cp $(JANET_STATIC_LIBRARY) '$(DESTDIR)$(LIBDIR)/libjanet.a'
 	ln -sf $(SONAME) '$(DESTDIR)$(LIBDIR)/libjanet.so'
 	ln -sf libjanet.so.$(shell $(JANET_TARGET) -e '(print janet/version)') $(DESTDIR)$(LIBDIR)/$(SONAME)
-	cp -rf auxbin/* '$(DESTDIR)$(BINDIR)'
+	cp -rf build/jpm '$(DESTDIR)$(BINDIR)'
 	mkdir -p '$(DESTDIR)$(MANPATH)'
 	cp janet.1 '$(DESTDIR)$(MANPATH)'
 	cp jpm.1 '$(DESTDIR)$(MANPATH)'
@@ -289,6 +294,7 @@ build/janet.tmLanguage: tools/tm_lang_gen.janet $(JANET_TARGET)
 
 clean:
 	-rm -rf build vgcore.* callgrind.*
+	-rm -rf test/install/build test/install/modpath
 
 test-install:
 	cd test/install \
@@ -298,10 +304,33 @@ test-install:
 		&& build/testexec \
 		&& jpm --verbose quickbin testexec.janet build/testexec2 \
 		&& build/testexec2 \
-		&& jpm --verbose --testdeps --modpath=. install https://github.com/janet-lang/json.git
-	cd test/install && jpm --verbose --test --modpath=. install https://github.com/janet-lang/jhydro.git
-	cd test/install && jpm --verbose --test --modpath=. install https://github.com/janet-lang/path.git
-	cd test/install && jpm --verbose --test --modpath=. install https://github.com/janet-lang/argparse.git
+		&& mkdir -p modpath \
+		&& jpm --verbose --testdeps --modpath=./modpath install https://github.com/janet-lang/json.git
+	cd test/install && jpm --verbose --test --modpath=./modpath install https://github.com/janet-lang/jhydro.git
+	cd test/install && jpm --verbose --test --modpath=./modpath install https://github.com/janet-lang/path.git
+	cd test/install && jpm --verbose --test --modpath=./modpath install https://github.com/janet-lang/argparse.git
+
+help:
+	@echo
+	@echo 'Janet: A Dynamic Language & Bytecode VM'
+	@echo
+	@echo Usage:
+	@echo '   make            Build Janet'
+	@echo '   make repl       Start a REPL from a built Janet'
+	@echo
+	@echo '   make test       Test a built Janet'
+	@echo '   make valgrind   Assess Janet with Valgrind'
+	@echo '   make callgrind  Assess Janet with Valgrind, using Callgrind'
+	@echo '   make valtest    Run the test suite with Valgrind to check for memory leaks'
+	@echo '   make dist       Create a distribution tarball'
+	@echo '   make docs       Generate documentation'
+	@echo '   make debug      Run janet with GDB or LLDB'
+	@echo '   make install    Install into the current filesystem'
+	@echo '   make uninstall  Uninstall from the current filesystem'
+	@echo '   make clean      Clean intermediate build artifacts'
+	@echo "   make format     Format Janet's own source files"
+	@echo '   make grammar    Generate a TextMate language grammar'
+	@echo
 
 .PHONY: clean install repl debug valgrind test \
-	valtest emscripten dist uninstall docs grammar format
+	valtest dist uninstall docs grammar format help

README.md

@@ -4,11 +4,13 @@
 [![Build Status](https://travis-ci.org/janet-lang/janet.svg?branch=master)](https://travis-ci.org/janet-lang/janet)
 [![builds.sr.ht status](https://builds.sr.ht/~bakpakin/janet/freebsd.yml.svg)](https://builds.sr.ht/~bakpakin/janet/freebsd.yml?)
 [![builds.sr.ht status](https://builds.sr.ht/~bakpakin/janet/openbsd.yml.svg)](https://builds.sr.ht/~bakpakin/janet/openbsd.yml?)
+[![builds.sr.ht status](https://builds.sr.ht/~bakpakin/janet/meson.yml.svg)](https://builds.sr.ht/~bakpakin/janet/meson.yml?)
+[![builds.sr.ht status](https://builds.sr.ht/~bakpakin/janet/meson_min.yml.svg)](https://builds.sr.ht/~bakpakin/janet/meson_min.yml?)
 
 <img src="https://raw.githubusercontent.com/janet-lang/janet/master/assets/janet-w200.png" alt="Janet logo" width=200 align="left">
 
 **Janet** is a functional and imperative programming language and bytecode interpreter. It is a
-modern lisp, but lists are replaced
+lisp-like language, but lists are replaced
 by other data structures (arrays, tables (hash table), struct (immutable hash table), tuples).
 The language also supports bridging to native code written in C, meta-programming with macros, and bytecode assembly.
 
@@ -35,7 +37,7 @@ Lua, but smaller than GNU Guile or Python.
 * Mutable and immutable arrays (array/tuple)
 * Mutable and immutable hashtables (table/struct)
 * Mutable and immutable strings (buffer/string)
-* Lisp Macros
+* Macros
 * Byte code interpreter with an assembly interface, as well as bytecode verification
 * Tailcall Optimization
 * Direct interop with C via abstract types and C functions
@@ -75,7 +77,7 @@ the SourceHut mirror is actively maintained.
 
 ## Building
 
-### macos and Unix-like
+### macOS and Unix-like
 
 The Makefile is non-portable and requires GNU-flavored make.
 
@@ -86,6 +88,8 @@ make test
 make repl
 ```
 
+Find out more about the available make targets by running `make help`.
+
 ### 32-bit Haiku
 
 32-bit Haiku build instructions are the same as the unix-like build instructions,
@@ -118,6 +122,13 @@ gmake repl
 3. Run `build_win` to compile janet.
 4. Run `build_win test` to make sure everything is working.
 
+To build an `.msi` installer executable, in addition to the above steps, you will have to:
+
+5. Install, or otherwise add to your PATH the [WiX 3.11 Toolset](https://github.com/wixtoolset/wix3/releases)
+6. run `build_win dist`
+
+Now you should have an `.msi`. You can run `build_win install` to install the `.msi`, or execute the file itself.
+
 ### Meson
 
 Janet also has a build file for [Meson](https://mesonbuild.com/), a cross platform build
@@ -135,6 +146,7 @@ cd janet
 meson setup build \
           --buildtype release \
           --optimization 2 \
+          --libdir /usr/local/lib \
           -Dgit_hash=$(git log --pretty=format:'%h' -n 1)
 ninja -C build
 
@@ -200,7 +212,7 @@ If installed, you can also run `man janet` and `man jpm` to get usage informatio
 Janet can be embedded in a host program very easily. The normal build
 will create a file `build/janet.c`, which is a single C file
 that contains all the source to Janet. This file, along with
-`src/include/janet.h` and `src/include/janetconf.h` can dragged into any C
+`src/include/janet.h` and `src/conf/janetconf.h` can be dragged into any C
 project and compiled into the project. Janet should be compiled with `-std=c99`
 on most compilers, and will need to be linked to the math library, `-lm`, and
 the dynamic linker, `-ldl`, if one wants to be able to load dynamic modules. If
@@ -220,10 +232,10 @@ Alternatively, check out [the #janet channel on Freenode](https://webchat.freeno
 
 ## FAQ
 
-### Why is my terminal is spitting out junk when I run the repl?
+### Why is my terminal spitting out junk when I run the repl?
 
 Make sure your terminal supports ANSI escape codes. Most modern terminals will
-support these, but some older terminals, windows consoles, or embedded terminals
+support these, but some older terminals, Windows consoles, or embedded terminals
 will not. If your terminal does not support ANSI escape codes, run the repl with
 the `-n` flag, which disables color output. You can also try the `-s` if further issues
 ensue.

appveyor.yml

@@ -4,7 +4,6 @@ image:
 - Visual Studio 2019
 configuration:
 - Release
-- Debug
 platform:
 - x64
 - x86
@@ -20,10 +19,6 @@ init:
 
 install:
     - set JANET_BUILD=%appveyor_repo_commit:~0,7%
-    - choco install nsis -y -pre --version 3.05
-    # Replace makensis.exe and files with special long string build. This should
-    # prevent issues when setting PATH during installation.
-    - 7z e "tools\nsis-3.05-strlen_8192.zip" -o"C:\Program Files (x86)\NSIS\" -y
     - build_win all
     - refreshenv
     # We need to reload vcvars after refreshing
@@ -49,7 +44,7 @@ artifacts:
     - name: "janet-$(janet_outname)-windows-%platform%"
       path: dist
       type: Zip
-    - path: "janet-$(janet_outname)-windows-%platform%-installer.exe"
+    - path: "janet-$(janet_outname)-windows-%platform%-installer.msi"
       type: File
 
 deploy:

build_win.bat

@@ -116,23 +116,34 @@ copy src\include\janet.h dist\janet.h
 copy src\conf\janetconf.h dist\janetconf.h
 copy build\libjanet.lib dist\libjanet.lib
 
-copy auxbin\jpm dist\jpm
+copy .\jpm dist\jpm
 copy tools\jpm.bat dist\jpm.bat
 
 @rem Create installer
 janet.exe -e "(->> janet/version (peg/match ''(* :d+ `.` :d+ `.` :d+)) first print)" > build\version.txt
-janet.exe -e "(print (= (os/arch) :x64))" > build\64bit.txt
+janet.exe -e "(print (os/arch))" > build\arch.txt
 set /p JANET_VERSION= < build\version.txt
-set /p SIXTYFOUR= < build\64bit.txt
+set /p BUILDARCH= < build\arch.txt
 echo "JANET_VERSION is %JANET_VERSION%"
-"C:\Program Files (x86)\NSIS\makensis.exe" /DVERSION=%JANET_VERSION% /DSIXTYFOUR=%SIXTYFOUR% janet-installer.nsi 
+if defined APPVEYOR_REPO_TAG_NAME (
+    set RELEASE_VERSION=%APPVEYOR_REPO_TAG_NAME%
+) else (
+    set RELEASE_VERSION=%JANET_VERSION%
+)
+if defined CI (
+    set WIXBIN="c:\Program Files (x86)\WiX Toolset v3.11\bin\"
+) else (
+    set WIXBIN=
+)
+%WIXBIN%candle.exe tools\msi\janet.wxs -arch %BUILDARCH% -out build\
+%WIXBIN%light.exe "-sice:ICE38" -b tools\msi -ext WixUIExtension build\janet.wixobj -out janet-%RELEASE_VERSION%-windows-%BUILDARCH%-installer.msi
 exit /b 0
 
 @rem Run the installer. (Installs to the local user with default settings)
 :INSTALL
-@echo Running Installer...
-FOR %%a in (janet-*-windows-*-installer.exe) DO (
-    %%a /S /CurrentUser
+FOR %%a in (janet-*-windows-*-installer.msi) DO (
+    @echo Running Installer %%a...
+    %%a /QN
 )
 exit /b 0
 

examples/numarray/numarray.c

@@ -23,7 +23,7 @@ static int num_array_gc(void *p, size_t s) {
     return 0;
 }
 
-Janet num_array_get(void *p, Janet key);
+int num_array_get(void *p, Janet key, Janet *out);
 void num_array_put(void *p, Janet key, Janet value);
 
 static const JanetAbstractType num_array_type = {
@@ -31,7 +31,8 @@ static const JanetAbstractType num_array_type = {
     num_array_gc,
     NULL,
     num_array_get,
-    num_array_put
+    num_array_put,
+    JANET_ATEND_PUT
 };
 
 static Janet num_array_new(int32_t argc, Janet *argv) {
@@ -81,21 +82,20 @@ static const JanetMethod methods[] = {
     {NULL, NULL}
 };
 
-Janet num_array_get(void *p, Janet key) {
+int num_array_get(void *p, Janet key, Janet *out) {
     size_t index;
-    Janet value;
     num_array *array = (num_array *)p;
     if (janet_checktype(key, JANET_KEYWORD))
-        return janet_getmethod(janet_unwrap_keyword(key), methods);
+        return janet_getmethod(janet_unwrap_keyword(key), methods, out);
     if (!janet_checkint(key))
         janet_panic("expected integer key");
     index = (size_t)janet_unwrap_integer(key);
     if (index >= array->size) {
-        value = janet_wrap_nil();
+        return 0;
     } else {
-        value = janet_wrap_number(array->data[index]);
+        *out = janet_wrap_number(array->data[index]);
     }
-    return value;
+    return 1;
 }
 
 static const JanetReg cfuns[] = {

examples/numarray/project.janet

@@ -0,0 +1,7 @@
+(declare-project
+  :name "numarray"
+  :description "Example c lib with abstract type")
+
+(declare-native
+  :name "numarray"
+  :source @["numarray.c"])

examples/numarray/test/numarray_tests.janet

@@ -1,10 +1,4 @@
-(import cook)
-
-(cook/make-native
-    :name "numarray"
-    :source @["numarray.c"])
-
-(import build/numarray :as numarray)
+(import build/numarray)
 
 (def a (numarray/new 30))
 (print (get a 20))

examples/tcpclient.janet

@@ -0,0 +1,6 @@
+(with [conn (net/connect "127.0.0.1" "8000")]
+  (printf "Connected to %q!" conn)
+  (:write conn "Echo...")
+  (print "Wrote to connection...")
+  (def res (:read conn 1024))
+  (pp res))

examples/tcpserver.janet

@@ -0,0 +1,13 @@
+(defn handler
+  "Simple handler for connections."
+  [stream]
+  (defer (:close stream)
+    (def id (gensym))
+    (def b @"")
+    (print "Connection " id "!")
+    (while (:read stream 1024 b)
+      (:write stream b)
+      (buffer/clear b))
+    (printf "Done %v!" id)))
+
+(net/server "127.0.0.1" "8000" handler)

janet-installer.nsi

@@ -1,214 +0,0 @@
-# This file is invoked by build_win.bat
-# Relevant configuration variables are set there.
-
-!echo "Program Files: ${PROGRAMFILES}"
-!addplugindir "tools\"
-
-# Version
-!define PRODUCT_VERSION "${VERSION}.0"
-VIProductVersion "${PRODUCT_VERSION}"
-VIFileVersion "${PRODUCT_VERSION}"
-
-# Use the modern UI
-!define MULTIUSER_EXECUTIONLEVEL Highest
-!define MULTIUSER_MUI
-!define MULTIUSER_INSTALLMODE_COMMANDLINE
-!define MULTIUSER_INSTALLMODE_DEFAULT_REGISTRY_KEY "Software\Janet\${VERSION}"
-!define MULTIUSER_INSTALLMODE_DEFAULT_REGISTRY_VALUENAME ""
-!define MULTIUSER_INSTALLMODE_INSTDIR_REGISTRY_KEY "Software\Janet\${VERSION}"
-!define MULTIUSER_INSTALLMODE_INSTDIR_REGISTRY_VALUENAME ""
-!define MULTIUSER_INSTALLMODE_INSTDIR "Janet-${VERSION}"
-
-!if ${SIXTYFOUR} == "true"
-    !define MULTIUSER_USE_PROGRAMFILES64
-    !define PLATNAME "x64"
-!else
-    !define PLATNAME "x86"
-!endif
-
-# Includes
-!include "MultiUser.nsh"
-!include "MUI2.nsh"
-!include "LogicLib.nsh"
-
-# Basics
-Name "Janet"
-
-# Do some NSIS-fu to figure out at compile time if we are in appveyor
-!define OUTNAME $%APPVEYOR_REPO_TAG_NAME%
-!define "CHECK_${OUTNAME}"
-!define DOLLAR "$"
-!ifdef CHECK_${DOLLAR}%APPVEYOR_REPO_TAG_NAME%
-    # We are not in the appveyor environment, use version name
-    !define OUTNAME_PART ${VERSION}
-!else
-    # We are in appveyor, use git tag name for installer
-    !define OUTNAME_PART ${OUTNAME}
-!endif
-OutFile "janet-${OUTNAME_PART}-windows-${PLATNAME}-installer.exe"
-
-# Some Configuration
-!define APPNAME "Janet"
-!define DESCRIPTION "The Janet Programming Language"
-!define HELPURL "http://janet-lang.org"
-BrandingText "The Janet Programming Language"
-
-# Macros for setting registry values
-!define UNINST_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\Janet-${VERSION}"
-!macro WriteEnv key value
-    ${If} $MultiUser.InstallMode == "AllUsers"
-        WriteRegExpandStr HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment" "${key}" "${value}"
-    ${Else}
-        WriteRegExpandStr HKCU "Environment" "${key}" "${value}"
-    ${EndIf}
-!macroend
-!macro DelEnv key
-    ${If} $MultiUser.InstallMode == "AllUsers"
-        DeleteRegValue HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment" "${key}"
-    ${Else}
-        DeleteRegValue HKCU "Environment" "${key}"
-    ${EndIf}
-!macroend
-
-# MUI Configuration
-!define MUI_ICON "assets\icon.ico"
-!define MUI_UNICON "assets\icon.ico"
-!define MUI_HEADERIMAGE
-!define MUI_HEADERIMAGE_BITMAP "assets\janet-w200.png"
-!define MUI_HEADERIMAGE_RIGHT
-!define MUI_ABORTWARNING
-
-# Show a welcome page first
-!insertmacro MUI_PAGE_WELCOME
-!insertmacro MUI_PAGE_LICENSE "LICENSE"
-
-# Pick Install Directory
-!insertmacro MULTIUSER_PAGE_INSTALLMODE
-!insertmacro MUI_PAGE_DIRECTORY
-!insertmacro MUI_PAGE_INSTFILES
-
-# Done
-!insertmacro MUI_PAGE_FINISH
-
-# Need to set a language.
-!insertmacro MUI_LANGUAGE "English"
-
-function .onInit
-    !insertmacro MULTIUSER_INIT
-functionEnd
-
-section "Janet" BfWSection
-
-    createDirectory "$INSTDIR\Library"
-    createDirectory "$INSTDIR\C"
-    createDirectory "$INSTDIR\bin"
-    createDirectory "$INSTDIR\docs"
-    setOutPath "$INSTDIR"
-
-    # Bin files
-    file /oname=bin\janet.exe dist\janet.exe
-    file /oname=logo.ico assets\icon.ico
-    file /oname=bin\jpm.janet auxbin\jpm
-    file /oname=bin\jpm.bat tools\jpm.bat
-
-    # C headers and library files
-    file /oname=C\janet.h dist\janet.h
-    file /oname=C\janetconf.h dist\janetconf.h
-    file /oname=C\janet.lib dist\janet.lib
-    file /oname=C\janet.exp dist\janet.exp
-    file /oname=C\janet.c dist\janet.c
-    file /oname=C\libjanet.lib dist\libjanet.lib
-
-    # Documentation
-    file /oname=docs\docs.html dist\doc.html
-
-    # Other
-    file README.md
-    file LICENSE
-
-    # Uninstaller - See function un.onInit and section "uninstall" for configuration
-    writeUninstaller "$INSTDIR\uninstall.exe"
-
-    # Start Menu
-    createShortCut "$SMPROGRAMS\Janet.lnk" "$INSTDIR\bin\janet.exe" "" "$INSTDIR\logo.ico"
-
-    # Update path
-    ${If} $MultiUser.InstallMode == "AllUsers"
-        EnVar::SetHKLM
-    ${Else}
-        EnVar::SetHKCU
-    ${EndIf}
-    EnVar::AddValue "PATH" "$INSTDIR\bin"
-    Pop $0
-
-    # Set up Environment variables
-    !insertmacro WriteEnv JANET_PATH "$INSTDIR\Library"
-    !insertmacro WriteEnv JANET_HEADERPATH "$INSTDIR\C"
-    !insertmacro WriteEnv JANET_LIBPATH "$INSTDIR\C"
-    !insertmacro WriteEnv JANET_BINPATH "$INSTDIR\bin"
-
-    SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000
-
-    # Registry information for add/remove programs
-    WriteRegStr SHCTX "${UNINST_KEY}" "DisplayName" "Janet"
-    WriteRegStr SHCTX "${UNINST_KEY}" "InstallLocation" "$INSTDIR"
-    WriteRegStr SHCTX "${UNINST_KEY}" "DisplayIcon" "$INSTDIR\logo.ico"
-    WriteRegStr SHCTX "${UNINST_KEY}" "Publisher" "Janet-Lang.org"
-    WriteRegStr SHCTX "${UNINST_KEY}" "HelpLink" "${HELPURL}"
-    WriteRegStr SHCTX "${UNINST_KEY}" "URLUpdateInfo" "${HELPURL}"
-    WriteRegStr SHCTX "${UNINST_KEY}" "URLInfoAbout" "${HELPURL}"
-    WriteRegStr SHCTX "${UNINST_KEY}" "DisplayVersion" "${VERSION}"
-    WriteRegDWORD SHCTX "${UNINST_KEY}" "NoModify" 1
-    WriteRegDWORD SHCTX "${UNINST_KEY}" "NoRepair" 1
-    WriteRegDWORD SHCTX "${UNINST_KEY}" "EstimatedSize" 1000
-    # Add uninstall
-    WriteRegStr SHCTX "${UNINST_KEY}" "UninstallString" "$\"$INSTDIR\uninstall.exe$\" /$MultiUser.InstallMode"
-    WriteRegStr SHCTX "${UNINST_KEY}" "QuietUninstallString" "$\"$INSTDIR\uninstall.exe$\" /$MultiUser.InstallMode /S"
-
-sectionEnd
-
-# Uninstaller
-
-function un.onInit
-    !insertmacro MULTIUSER_UNINIT
-functionEnd
-
-section "uninstall"
-
-    # Remove Start Menu launcher
-    delete "$SMPROGRAMS\Janet.lnk"
-
-    # Remove files
-    delete "$INSTDIR\logo.ico"
-    delete "$INSTDIR\README.md"
-    delete "$INSTDIR\LICENSE"
-    rmdir /r "$INSTDIR\Library"
-    rmdir /r "$INSTDIR\bin"
-    rmdir /r "$INSTDIR\C"
-    rmdir /r "$INSTDIR\docs"
-
-    # Remove env vars
-    !insertmacro DelEnv JANET_PATH
-    !insertmacro DelEnv JANET_HEADERPATH
-    !insertmacro DelEnv JANET_LIBPATH
-    !insertmacro DelEnv JANET_BINPATH
-
-    # Unset PATH
-    ${If} $MultiUser.InstallMode == "AllUsers"
-        EnVar::SetHKLM
-    ${Else}
-        EnVar::SetHKCU
-    ${EndIf}
-    EnVar::DeleteValue "PATH" "$INSTDIR\bin"
-    Pop $0
-
-    # make sure windows knows about the change
-    SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000
-
-    # Always delete uninstaller as the last action
-    delete "$INSTDIR\uninstall.exe"
-
-    # Remove uninstaller information from the registry
-    DeleteRegKey SHCTX "${UNINST_KEY}"
-
-sectionEnd

janet.1

@@ -13,8 +13,8 @@ janet \- run the Janet language abstract machine
 .BR args ...
 .SH DESCRIPTION
 Janet is a functional and imperative programming language and bytecode interpreter.
-It is a modern lisp, but lists are replaced by other data structures with better utility
-and performance (arrays, tables, structs, tuples). The language also features bridging
+It is a Lisp-like language, but lists are replaced by other data structures
+(arrays, tables, structs, tuples). The language also features bridging
 to native code written in C, meta-programming with macros, and bytecode assembly.
 
 There is a repl for trying out the language, as well as the ability to run script files.
@@ -175,7 +175,7 @@ after an error. Persistent mode can be good for debugging and testing.
 
 .TP
 .BR \-q
-Quiet output. Don't print a repl prompt or expression results to stdout.
+Hide the logo in the repl.
 
 .TP
 .BR \-k

jpm.1

@@ -26,7 +26,7 @@ More interesting are the local commands. For more information on jpm usage, see
 
 .TP
 .BR \-\-nocolor
-Disable color in the jpm repl.
+Disable color in the jpm debug repl.
 
 .TP
 .BR \-\-verbose
@@ -100,19 +100,20 @@ Builds all artifacts specified in the project.janet file in the current director
 be created in the ./build/ directory.
 
 .TP
-.BR install\ [\fBrepo\fR]
+.BR install\ [\fBrepo...\fR]
 
 When run with no arguments, installs all installable artifacts in the current project to
 the current JANET_MODPATH for modules and JANET_BINPATH for executables and scripts. Can also
 take an optional git repository URL and will install all artifacts in that repository instead.
-When run with an argument, install does not need to be run from a jpm project directory.
+When run with an argument, install does not need to be run from a jpm project directory. Will also
+install multiple dependencies in one command.
 
 .TP
-.BR uninstall\ [\fBname\fR]
+.BR uninstall\ [\fBname...\fR]
 Uninstall a project installed with install. uninstall expects the name of the project, not the
 repository url, path to installed file or executable name. The name of the project must be specified
 at the top of the project.janet file in the declare-project form. If no name is given, uninstalls
-the current project if installed.
+the current project if installed. Will also uninstall multiple packages in one command.
 
 .TP
 .BR clean
@@ -138,6 +139,14 @@ date or too large, clear-cache will remove the cache and jpm will rebuild it
 when needed. clear-cache is a global command, so a project.janet is not
 required.
 
+.TP
+.BR clear-manifest
+jpm creates a manifest directory that contains a list of all installed files.
+By deleting this directory, jpm will think that nothing is installed and will
+try reinstalling everything on the jpm deps or jpm load-lockfile commands. Be careful with
+this command, as it may leave extra files on your system and shouldn't be needed
+most of the time in a healthy install.
+
 .TP
 .BR run\ [\fBrule\fR]
 Run a given rule defined in project.janet. Project definitions files (project.janet) usually
@@ -171,7 +180,7 @@ as function arguments. The entry file can import other modules, including native
 jpm will attempt to include the dependencies into the generated executable.
 
 .TP
-.BR repl
+.BR debug-repl
 Load the current project.janet file and start a repl in it's environment. This lets a user better
 debug the project file, as well as run rules manually.
 
@@ -236,5 +245,10 @@ The git repository URL that contains a listing of packages. This allows installi
 is mostly a convenience. However, package dependencies can use short names, package listings
 can be used to choose a particular set of dependency versions for a whole project.
 
+.B JANET_GIT
+.RS
+An optional path to a git executable to use to clone git dependencies. By default, uses "git" on the current $PATH. You shouldn't need to set this
+if you have a normal install of git.
+
 .SH AUTHOR
 Written by Calvin Rose <calsrose@gmail.com>

meson.build

@@ -20,7 +20,7 @@
 
 project('janet', 'c',
   default_options : ['c_std=c99', 'b_lundef=false', 'default_library=both'],
-  version : '1.9.0-dev')
+  version : '1.10.0')
 
 # Global settings
 janet_path = join_paths(get_option('prefix'), get_option('libdir'), 'janet')
@@ -59,6 +59,7 @@ conf.set('JANET_NO_DOCSTRINGS', not get_option('docstrings'))
 conf.set('JANET_NO_SOURCEMAPS', not get_option('sourcemaps'))
 conf.set('JANET_NO_ASSEMBLER', not get_option('assembler'))
 conf.set('JANET_NO_PEG', not get_option('peg'))
+conf.set('JANET_NO_NET', not get_option('net'))
 conf.set('JANET_REDUCED_OS', get_option('reduced_os'))
 conf.set('JANET_NO_TYPED_ARRAY', not get_option('typed_array'))
 conf.set('JANET_NO_INT_TYPES', not get_option('int_types'))
@@ -67,6 +68,9 @@ conf.set('JANET_RECURSION_GUARD', get_option('recursion_guard'))
 conf.set('JANET_MAX_PROTO_DEPTH', get_option('max_proto_depth'))
 conf.set('JANET_MAX_MACRO_EXPAND', get_option('max_macro_expand'))
 conf.set('JANET_STACK_MAX', get_option('stack_max'))
+conf.set('JANET_NO_UMASK', not get_option('umask'))
+conf.set('JANET_NO_REALPATH', not get_option('realpath'))
+conf.set('JANET_NO_PROCESSES', not get_option('processes'))
 if get_option('os_name') != ''
   conf.set('JANET_OS_NAME', get_option('os_name'))
 endif
@@ -112,6 +116,7 @@ core_src = [
   'src/core/io.c',
   'src/core/marsh.c',
   'src/core/math.c',
+  'src/core/net.c',
   'src/core/os.c',
   'src/core/parse.c',
   'src/core/peg.c',
@@ -219,7 +224,8 @@ test_files = [
   'test/suite5.janet',
   'test/suite6.janet',
   'test/suite7.janet',
-  'test/suite8.janet'
+  'test/suite8.janet',
+  'test/suite9.janet'
 ]
 foreach t : test_files
   test(t, janet_nativeclient, args : files([t]), workdir : meson.current_source_dir())
@@ -239,10 +245,18 @@ pkg.generate(libjanet,
 
 # Installation
 install_man('janet.1')
-install_man('jpm.1')
 install_headers(['src/include/janet.h', jconf], subdir: 'janet')
-janet_binscripts = [
-  'auxbin/jpm'
-]
-install_data(sources : janet_binscripts, install_dir : get_option('bindir'))
 install_data(sources : ['tools/.keep'], install_dir : join_paths(get_option('libdir'), 'janet'))
+if get_option('peg') and not get_option('reduced_os') and get_option('processes')
+  install_man('jpm.1')
+  patched_jpm = custom_target('patched-jpm',
+    input : ['tools/patch-jpm.janet', 'jpm'],
+    install : true,
+    install_dir : get_option('bindir'),
+    build_by_default : true,
+    output : ['jpm'],
+    command : [janet_nativeclient, '@INPUT@', '@OUTPUT@',
+      '--binpath=' + join_paths(get_option('prefix'), get_option('bindir')),
+      '--libpath=' + join_paths(get_option('prefix'), get_option('libdir'), 'janet'),
+      '--headerpath=' + join_paths(get_option('prefix'), get_option('includedir'))])
+endif

meson_options.txt

@@ -11,6 +11,10 @@ option('peg', type : 'boolean', value : true)
 option('typed_array', type : 'boolean', value : true)
 option('int_types', type : 'boolean', value : true)
 option('prf', type : 'boolean', value : true)
+option('net', type : 'boolean', value : true)
+option('processes', type : 'boolean', value : true)
+option('umask', type : 'boolean', value : true)
+option('realpath', type : 'boolean', value : true)
 
 option('recursion_guard', type : 'integer', min : 10, max : 8000, value : 1024)
 option('max_proto_depth', type : 'integer', min : 10, max : 8000, value : 200)

src/boot/boot.janet

@@ -141,6 +141,11 @@
   [x &opt err]
   (if x x (error (if err err "assert failure"))))
 
+(defn errorf
+  "A combination of error and string/format. Equivalent to (error (string/format fmt ;args))"
+  [fmt & args]
+  (error (string/format fmt ;args)))
+
 (defmacro default
   "Define a default value for an optional argument.
   Expands to (def sym (if (= nil sym) val sym))"
@@ -240,8 +245,8 @@
   [& body]
   (let [f (gensym) r (gensym)]
     ~(let [,f (,fiber/new (fn [] ,;body) :ie)
-          ,r (,resume ,f)]
-      [(,not= :error (,fiber/status ,f)) ,r])))
+           ,r (,resume ,f)]
+       [(,not= :error (,fiber/status ,f)) ,r])))
 
 (defmacro and
   "Evaluates to the last argument if all preceding elements are truthy, otherwise
@@ -369,7 +374,7 @@
   "Similar to with, but if binding is false or nil, evaluates
   the falsey path. Otherwise, evaluates the truthy path. In both cases,
   ctor is bound to binding."
-  [[binding ctor dtor] truthy &opt falsey ]
+  [[binding ctor dtor] truthy &opt falsey]
   ~(if-let [,binding ,ctor]
      ,(apply defer [(or dtor :close) binding] [truthy])
      ,falsey))
@@ -618,9 +623,9 @@
   (case (length functions)
     0 nil
     1 (in functions 0)
-    2 (let [[f g]       functions] (fn [& x] (f (g ;x))))
-    3 (let [[f g h]     functions] (fn [& x] (f (g (h ;x)))))
-    4 (let [[f g h i]   functions] (fn [& x] (f (g (h (i ;x))))))
+    2 (let [[f g] functions] (fn [& x] (f (g ;x))))
+    3 (let [[f g h] functions] (fn [& x] (f (g (h ;x)))))
+    4 (let [[f g h i] functions] (fn [& x] (f (g (h (i ;x))))))
     (let [[f g h i] functions]
       (comp (fn [x] (f (g (h (i x)))))
             ;(tuple/slice functions 4 -1)))))
@@ -662,6 +667,68 @@
   [xs]
   (get xs (- (length xs) 1)))
 
+## Polymorphic comparisons
+
+(defn compare-primitive
+  "Compare x and y using primitive operators.
+   Returns -1,0,1 for x < y, x = y, x > y respectively.
+   Present mostly for constructing 'compare' methods in prototypes."
+  [x y]
+  (cond
+    (= x y) 0
+    (< x y) -1
+    (> x y) 1))
+
+(defn compare
+  "Polymorphic compare.  Returns -1,0,1 for x < y, x = y, x > y respectively.
+   Differs from the primitive comparators in that it first checks to
+   see whether either x or y implement a 'compare' method which can
+   compare x and y.  If so it uses that compare method.  If not, it
+   delegates to the primitive comparators."
+  [x y]
+  (or
+    (when-let [f (get x :compare)] (f x y))
+    (when-let [f (get y :compare)
+               fyx (f y x)] (- fyx))
+    (compare-primitive x y)))
+
+(defn- compare-reduce [op xs]
+  (var r true)
+  (loop [i :range [0 (- (length xs) 1)]
+         :let [c (compare (xs i) (xs (+ i 1)))
+               ok (op c 0)]
+         :when (not ok)]
+    (set r false)
+    (break))
+  r)
+
+(defn compare=
+  "Equivalent of '=' but using compare function instead of primitive comparator"
+  [& xs]
+  (compare-reduce = xs))
+
+(defn compare<
+  "Equivalent of '<' but using compare function instead of primitive comparator"
+  [& xs]
+  (compare-reduce < xs))
+
+(defn compare<=
+  "Equivalent of '<=' but using compare function instead of primitive comparator"
+  [& xs]
+  (compare-reduce <= xs))
+
+(defn compare>
+  "Equivalent of '>' but using compare function instead of primitive comparator"
+  [& xs]
+  (compare-reduce > xs))
+
+(defn compare>=
+  "Equivalent of '>=' but using compare function instead of primitive comparator"
+  [& xs]
+  (compare-reduce >= xs))
+
+(put _env 'compare-reduce nil)
+
 ###
 ###
 ### Indexed Combinators
@@ -843,8 +910,9 @@
         arr)
     3 (do
         (def [n m s] args)
-        (if (neg? s)
-          (seq [i :down [n m (- s)]] i)
+        (cond
+          (zero? s) @[]
+          (neg? s) (seq [i :down [n m (- s)]] i)
           (seq [i :range [n m s]] i)))
     (error "expected 1 to 3 arguments to range")))
 
@@ -940,6 +1008,21 @@
     (array/push parts (tuple apply f $args)))
   (tuple 'fn (tuple '& $args) (tuple/slice parts 0)))
 
+(defmacro tracev
+  "Print a value and a description of the form that produced that value to
+  stderr. Evaluates to x."
+  [x]
+  (def [l c] (tuple/sourcemap (dyn :macro-form ())))
+  (def cf (dyn :current-file))
+  (def fmt-1 (if cf (string/format "trace [%s]" cf) "trace"))
+  (def fmt-2 (if (or (neg? l) (neg? c)) ":" (string/format " on line %d, column %d:" l c)))
+  (def fmt (string fmt-1 fmt-2 " %j is "))
+  (def s (gensym))
+  ~(let [,s ,x]
+     (,eprinf ,fmt ',x)
+     (,eprintf (,dyn :pretty-format "%q") ,s)
+     ,s))
+
 (defmacro ->
   "Threading macro. Inserts x as the second value in the first form
   in forms, and inserts the modified first form into the second form
@@ -1070,7 +1153,7 @@
   [bindings & body]
   (def dyn-forms
     (seq [i :range [0 (length bindings) 2]]
-         ~(setdyn ,(bindings i) ,(bindings (+ i 1)))))
+      ~(setdyn ,(bindings i) ,(bindings (+ i 1)))))
   ~(,resume (,fiber/new (fn [] ,;dyn-forms ,;body) :p)))
 
 (defmacro with-vars
@@ -1084,12 +1167,12 @@
   (def setnew (seq [i :range [0 len 2]] ['set (vars i) (vars (+ i 1))]))
   (def restoreold (seq [i :range [0 len 2]] ['set (vars i) (temp (/ i 2))]))
   (with-syms [ret f s]
-  ~(do
-     ,;saveold
-     (def ,f (,fiber/new (fn [] ,;setnew ,;body) :ti))
-     (def ,ret (,resume ,f))
-     ,;restoreold
-     (if (= (,fiber/status ,f) :dead) ,ret (,propagate ,ret ,f)))))
+    ~(do
+       ,;saveold
+       (def ,f (,fiber/new (fn [] ,;setnew ,;body) :ti))
+       (def ,ret (,resume ,f))
+       ,;restoreold
+       (if (= (,fiber/status ,f) :dead) ,ret (,propagate ,ret ,f)))))
 
 (defn partial
   "Partial function application."
@@ -1407,9 +1490,9 @@
         ~(do (def ,pattern ,expr) ,(onmatch))))
 
     (and (tuple? pattern) (= :parens (tuple/type pattern)))
-    (if (and (= (pattern 0) '@) (symbol? (pattern 1)))
+    (if (= (get pattern 0) '@)
       # Unification with external values
-      ~(if (= ,(pattern 1) ,expr) ,(onmatch) ,sentinel)
+      ~(if (= ,(get pattern 1) ,expr) ,(onmatch) ,sentinel)
       (match-1
         (in pattern 0) expr
         (fn []
@@ -1443,7 +1526,7 @@
                (if (= key nil)
                  (onmatch)
                  ~(do (def ,$val (,get ,$dict ,key))
-                   ,(match-1 [(in pattern key) [not= nil $val]] $val aux seen)))))
+                    ,(match-1 [(in pattern key) [not= nil $val]] $val aux seen)))))
            ,sentinel)))
 
     :else ~(if (= ,pattern ,expr) ,(onmatch) ,sentinel)))
@@ -1691,7 +1774,7 @@
     (def m? (entry :macro))
     (cond
       s (s t)
-      m? (m ;(tuple/slice t 1))
+      m? (do (setdyn :macro-form t) (m ;(tuple/slice t 1)))
       (tuple/slice (map recur t))))
 
   (def ret
@@ -1751,8 +1834,8 @@
     :array (tuple/slice (map freeze x))
     :tuple (tuple/slice (map freeze x))
     :table (if-let [p (table/getproto x)]
-              (freeze (merge (table/clone p) x))
-              (struct ;(map freeze (kvs x))))
+             (freeze (merge (table/clone p) x))
+             (struct ;(map freeze (kvs x))))
     :struct (struct ;(map freeze (kvs x)))
     :buffer (string x)
     x))
@@ -1951,6 +2034,7 @@
   (default on-parse-error bad-parse)
   (default evaluator (fn evaluate [x &] (x)))
   (default where "<anonymous>")
+  (default guard :ydt)
 
   # Are we done yet?
   (var going true)
@@ -1977,35 +2061,49 @@
                   (string err " on line " line ", column " column)
                   err))
               (on-compile-error msg errf where))))
-        (or guard :a)))
+        guard))
     (fiber/setenv f env)
     (while (fiber/can-resume? f)
       (def res (resume f resumeval))
       (when good (when going (set resumeval (onstatus f res))))))
 
+  (defn parse-err
+    "Handle parser error in the correct environment"
+    [p where]
+    (def f (coro (on-parse-error p where)))
+    (fiber/setenv f env)
+    (resume f))
+
   # Loop
   (def buf @"")
   (while going
     (if (env :exit) (break))
     (buffer/clear buf)
-    (chunks buf p)
-    (var pindex 0)
-    (var pstatus nil)
-    (def len (length buf))
-    (when (= len 0)
-      (parser/eof p)
-      (set going false))
-    (while (> len pindex)
-      (+= pindex (parser/consume p buf pindex))
-      (while (parser/has-more p)
-        (eval1 (parser/produce p)))
-      (when (= (parser/status p) :error)
-        (on-parse-error p where))))
+    (if (= (chunks buf p)
+           :cancel)
+      (do
+        # A :cancel chunk represents a cancelled form in the REPL, so reset.
+        (parser/flush p)
+        (buffer/clear buf))
+      (do
+        (var pindex 0)
+        (var pstatus nil)
+        (def len (length buf))
+        (when (= len 0)
+          (parser/eof p)
+          (set going false))
+        (while (> len pindex)
+          (+= pindex (parser/consume p buf pindex))
+          (while (parser/has-more p)
+            (eval1 (parser/produce p)))
+          (when (= (parser/status p) :error)
+            (parse-err p where))))))
+
   # Check final parser state
   (while (parser/has-more p)
     (eval1 (parser/produce p)))
   (when (= (parser/status p) :error)
-    (on-parse-error p where))
+    (parse-err p where))
 
   (in env :exit-value env))
 
@@ -2052,6 +2150,19 @@
     (res)
     (error (res :error))))
 
+(defn parse
+  "Parse a string and return the first value. For complex parsing, such as for a repl with error handling,
+  use the parser api."
+  [str]
+  (let [p (parser/new)]
+    (parser/consume p str)
+    (parser/eof p)
+    (if (parser/has-more p)
+      (parser/produce p)
+      (if (= :error (parser/status p))
+        (error (parser/error p))
+        (error "no value")))))
+
 (def make-image-dict
   "A table used in combination with marshal to marshal code (images), such that
   (make-image x) is the same as (marshal x make-image-dict)."
@@ -2105,11 +2216,12 @@
   (defn- find-prefix
     [pre]
     (or (find-index |(and (string? ($ 0)) (string/has-prefix? pre ($ 0))) module/paths) 0))
-  (array/insert module/paths 0 [(string ":cur:/:all:" ext) loader check-.])
   (def all-index (find-prefix ":all:"))
   (array/insert module/paths all-index [(string ":all:" ext) loader not-check-.])
   (def sys-index (find-prefix ":sys:"))
   (array/insert module/paths sys-index [(string ":sys:/:all:" ext) loader not-check-.])
+  (def curall-index (find-prefix ":cur:/:all:"))
+  (array/insert module/paths curall-index [(string ":cur:/:all:" ext) loader check-.])
   module/paths)
 
 (module/add-paths ":native:" :native)
@@ -2127,7 +2239,7 @@
       (when f
         (def res
           (try (do (file/read f 1) true)
-               ([err] nil)))
+            ([err] nil)))
         (file/close f)
         res))))
 
@@ -2149,8 +2261,8 @@
     (when (mod-filter checker path)
       (if (function? p)
         (when-let [res (p path)]
-                  (set ret [res mod-kind])
-                  (break))
+          (set ret [res mod-kind])
+          (break))
         (do
           (def fullpath (string (module/expand-path path p)))
           (when (fexists fullpath)
@@ -2236,14 +2348,11 @@
               newenv)
     :image (fn [path &] (load-image (slurp path)))})
 
-(defn require
-  "Require a module with the given name. Will search all of the paths in
-  module/paths. Returns the new environment
-  returned from compiling and running the file."
-  [path & args]
+(defn require-1
+  [path args kargs]
   (def [fullpath mod-kind] (module/find path))
   (unless fullpath (error mod-kind))
-  (if-let [check (in module/cache fullpath)]
+  (if-let [check (if-not (kargs :fresh) (in module/cache fullpath))]
     check
     (if (module/loading fullpath)
       (error (string "circular dependency " fullpath " detected"))
@@ -2254,15 +2363,23 @@
         (put module/cache fullpath env)
         env))))
 
+(defn require
+  "Require a module with the given name. Will search all of the paths in
+  module/paths. Returns the new environment
+  returned from compiling and running the file."
+  [path & args]
+  (require-1 path args (struct ;args)))
+
 (defn import*
   "Function form of import. Same parameters, but the path
   and other symbol parameters should be strings instead."
   [path & args]
   (def env (fiber/getenv (fiber/current)))
+  (def kargs (table ;args))
   (def {:as as
         :prefix prefix
-        :export ep} (table ;args))
-  (def newenv (require path ;args))
+        :export ep} kargs)
+  (def newenv (require-1 path args kargs))
   (def prefix (or
                 (and as (string as "/"))
                 prefix
@@ -2271,6 +2388,8 @@
     (def newv (table/setproto @{:private (not ep)} v))
     (put env (symbol prefix k) newv)))
 
+(put _env 'require-1 nil)
+
 (defmacro import
   "Import a module. First requires the module, and then merges its
   symbols into the current environment, prepending a given prefix as needed.
@@ -2278,7 +2397,8 @@
   use the name of the module as a prefix. One can also use :export true
   to re-export the imported symbols. If :exit true is given as an argument,
   any errors encountered at the top level in the module will cause (os/exit 1)
-  to be called. Dynamic bindings will NOT be imported."
+  to be called. Dynamic bindings will NOT be imported. Use :fresh to bypass the
+  module cache."
   [path & args]
   (def argm (map |(if (keyword? $) $ (string $)) args))
   (tuple import* (string path) ;argm))
@@ -2333,31 +2453,34 @@
   [&opt nth frame-idx]
   (in (.slots frame-idx) (or nth 0)))
 
+# Conditional compilation for disasm
+(def disasm-alias (if-let [x (_env 'disasm)] (x :value)))
+
 (defn .disasm
   "Gets the assembly for the current function."
   [&opt n]
   (def frame (.frame n))
   (def func (frame :function))
-  (disasm func))
+  (disasm-alias func))
 
 (defn .bytecode
   "Get the bytecode for the current function."
   [&opt n]
-  ((.disasm n) 'bytecode))
+  ((.disasm n) :bytecode))
 
 (defn .ppasm
   "Pretty prints the assembly for the current function"
   [&opt n]
   (def frame (.frame n))
   (def func (frame :function))
-  (def dasm (disasm func))
-  (def bytecode (dasm 'bytecode))
+  (def dasm (disasm-alias func))
+  (def bytecode (in dasm :bytecode))
   (def pc (frame :pc))
-  (def sourcemap (dasm 'sourcemap))
+  (def sourcemap (in dasm :sourcemap))
   (var last-loc [-2 -2])
   (print "\n  signal: " (.signal))
-  (print "  function:   " (dasm 'name) " [" (in dasm 'source "") "]")
-  (when-let [constants (dasm 'constants)]
+  (print "  function:   " (dasm :name) " [" (in dasm :source "") "]")
+  (when-let [constants (dasm :constants)]
     (printf "  constants:  %.4q" constants))
   (printf "  slots:      %.4q\n" (frame :slots))
   (def padding (string/repeat " " 20))
@@ -2375,14 +2498,6 @@
     (print))
   (print))
 
-(defn .source
-  "Show the source code for the function being debugged."
-  [&opt n]
-  (def frame (.frame n))
-  (def s (frame :source))
-  (def all-source (slurp s))
-  (print "\n" all-source "\n"))
-
 (defn .breakall
   "Set breakpoints on all instructions in the current function."
   [&opt n]
@@ -2401,6 +2516,22 @@
     (debug/unfbreak fun i))
   (print "Cleared " (length bytecode) " breakpoints in " fun))
 
+(unless (get _env 'disasm)
+  (put _env '.disasm nil)
+  (put _env '.bytecode nil)
+  (put _env '.breakall nil)
+  (put _env '.clearall nil)
+  (put _env '.ppasm nil))
+(put _env 'disasm-alias nil)
+
+(defn .source
+  "Show the source code for the function being debugged."
+  [&opt n]
+  (def frame (.frame n))
+  (def s (frame :source))
+  (def all-source (slurp s))
+  (print "\n" all-source "\n"))
+
 (defn .break
   "Set breakpoint at the current pc."
   []
@@ -2441,8 +2572,11 @@
     (set res (debug/step (.fiber))))
   res)
 
+(def debugger-env
+  "An environment that contains dot prefixed functions for debugging."
+  @{})
+
 (def- debugger-keys (filter (partial string/has-prefix? ".") (keys _env)))
-(def- debugger-env @{})
 (each k debugger-keys (put debugger-env k (_env k)) (put _env k nil))
 (put _env 'debugger-keys nil)
 
@@ -2495,19 +2629,19 @@
 
     (fn [f x]
       (if (= :dead (fiber/status f))
-        (put e '_ @{:value x})
+        (do
+          (put e '_ @{:value x})
+          (printf (get e :pretty-format "%q") x)
+          (flush))
         (if (e :debug)
           (enter-debugger f x)
           (do (debug/stacktrace f x) (eflush))))))
 
   (run-context {:env env
                 :chunks chunks
-                :expander (fn [x] [pp x])
                 :on-status (or onsignal (make-onsignal env 1))
                 :source "repl"}))
 
-(put _env 'debugger-env nil)
-
 ###
 ###
 ### CLI Tool Main
@@ -2535,7 +2669,12 @@
                   'def is-safe-def 'var is-safe-def 'def- is-safe-def 'var- is-safe-def
                   'defglobal is-safe-def 'varglobal is-safe-def})
 
-(def- importers {'import true 'import* true 'use true 'dofile true 'require true})
+(def- importers {'import true 'import* true 'dofile true 'require true})
+(defn- use-2 [evaluator args]
+  (each a args (import* (string a) :prefix "" :evaluator evaluator)))
+
+# conditional compilation for reduced os
+(def- getenv-alias (if-let [entry (in _env 'os/getenv)] (entry :value) (fn [&])))
 
 (defn cli-main
   "Entrance for the Janet CLI tool. Call this functions with the command line
@@ -2554,8 +2693,8 @@
   (var *debug* false)
   (var *compile-only* false)
 
-  (if-let [jp (os/getenv "JANET_PATH")] (setdyn :syspath jp))
-  (if-let [jp (os/getenv "JANET_HEADERPATH")] (setdyn :headerpath jp))
+  (if-let [jp (getenv-alias "JANET_PATH")] (setdyn :syspath jp))
+  (if-let [jp (getenv-alias "JANET_HEADERPATH")] (setdyn :headerpath jp))
 
   # Flag handlers
   (def handlers
@@ -2570,7 +2709,7 @@
   -d : Set the debug flag in the repl
   -r : Enter the repl after running all scripts
   -p : Keep on executing if there is a top level error (persistent)
-  -q : Hide prompt, logo, and repl output (quiet)
+  -q : Hide logo (quiet)
   -k : Compile scripts but do not execute (flycheck)
   -m syspath : Set system path for loading global modules
   -c source output : Compile janet source code into an image
@@ -2620,6 +2759,9 @@
           # Always safe form
           safe-check
           (thunk)
+          # Use
+          (= 'use head)
+          (use-2 evaluator (tuple/slice source 1))
           # Import-like form
           (importers head)
           (do
@@ -2662,16 +2804,16 @@
     (def getter (if *raw-stdin* getstdin getline))
     (defn getchunk [buf p]
       (getter (getprompt p) buf env))
-    (def onsig (if *quiet* (fn [x &] x) nil))
     (setdyn :pretty-format (if *colorize* "%.20Q" "%.20q"))
     (setdyn :err-color (if *colorize* true))
-    (repl getchunk onsig env)))
+    (repl getchunk nil env)))
 
 (put _env 'no-side-effects nil)
 (put _env 'is-safe-def nil)
 (put _env 'safe-forms nil)
 (put _env 'importers nil)
-
+(put _env 'use-2 nil)
+(put _env 'getenv-alias nil)
 
 ###
 ###
@@ -2758,6 +2900,7 @@
      "src/core/io.c"
      "src/core/marsh.c"
      "src/core/math.c"
+     "src/core/net.c"
      "src/core/os.c"
      "src/core/parse.c"
      "src/core/peg.c"
@@ -2799,6 +2942,14 @@
   (each h local-headers
     (do-one-file h))
 
+  # windows.h should not be included in any of the external or internal headers - only in .c files.
+  (print)
+  (print "/* Windows work around - winsock2 must be included before windows.h, especially in amalgamated build */")
+  (print "#if defined(JANET_WINDOWS) && defined(JANET_NET)")
+  (print "#include <winsock2.h>")
+  (print "#endif")
+  (print)
+
   (each s core-sources
     (do-one-file s))
 

src/conf/janetconf.h

@@ -27,10 +27,10 @@
 #define JANETCONF_H
 
 #define JANET_VERSION_MAJOR 1
-#define JANET_VERSION_MINOR 9
+#define JANET_VERSION_MINOR 10
 #define JANET_VERSION_PATCH 0
 #define JANET_VERSION_EXTRA ""
-#define JANET_VERSION "1.9.0-dev"
+#define JANET_VERSION "1.10.0"
 
 /* #define JANET_BUILD "local" */
 
@@ -45,14 +45,22 @@
 /* #define JANET_NO_DOCSTRINGS */
 /* #define JANET_NO_SOURCEMAPS */
 /* #define JANET_REDUCED_OS */
-
-/* Other settings */
+/* #define JANET_NO_PROCESSES */
 /* #define JANET_NO_ASSEMBLER */
 /* #define JANET_NO_PEG */
+/* #define JANET_NO_NET */
 /* #define JANET_NO_TYPED_ARRAY */
 /* #define JANET_NO_INT_TYPES */
+
+/* Other settings */
 /* #define JANET_NO_PRF */
+/* #define JANET_NO_UTC_MKTIME */
+/* #define JANET_NO_REALPATH */
+/* #define JANET_NO_SYMLINKS */
+/* #define JANET_NO_UMASK */
 /* #define JANET_OUT_OF_MEMORY do { printf("janet out of memory\n"); exit(1); } while (0) */
+/* #define JANET_EXIT(msg) do { printf("C assert failed executing janet: %s\n", msg); exit(1); } while (0) */
+/* #define JANET_TOP_LEVEL_SIGNAL(msg) call_my_function((msg), stderr) */
 /* #define JANET_RECURSION_GUARD 1024 */
 /* #define JANET_MAX_PROTO_DEPTH 200 */
 /* #define JANET_MAX_MACRO_EXPAND 200 */

src/core/asm.c

@@ -53,7 +53,6 @@ struct JanetAssembler {
 
     Janet name;
     JanetTable labels; /* keyword -> bytecode index */
-    JanetTable constants; /* symbol -> constant index */
     JanetTable slots; /* symbol -> slot index */
     JanetTable envs; /* symbol -> environment index */
     JanetTable defs; /* symbol -> funcdefs index */
@@ -172,7 +171,6 @@ static void janet_asm_deinit(JanetAssembler *a) {
     janet_table_deinit(&a->slots);
     janet_table_deinit(&a->labels);
     janet_table_deinit(&a->envs);
-    janet_table_deinit(&a->constants);
     janet_table_deinit(&a->defs);
 }
 
@@ -252,9 +250,6 @@ static int32_t doarg_1(
         case JANET_OAT_ENVIRONMENT:
             c = &a->envs;
             break;
-        case JANET_OAT_CONSTANT:
-            c = &a->constants;
-            break;
         case JANET_OAT_LABEL:
             c = &a->labels;
             break;
@@ -506,7 +501,6 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
     a.defs_capacity = 0;
     a.name = janet_wrap_nil();
     janet_table_init(&a.labels, 0);
-    janet_table_init(&a.constants, 0);
     janet_table_init(&a.slots, 0);
     janet_table_init(&a.envs, 0);
     janet_table_init(&a.defs, 0);
@@ -534,34 +528,34 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
                      "expected struct or table for assembly source");
 
     /* Check for function name */
-    a.name = janet_get1(s, janet_csymbolv("name"));
+    a.name = janet_get1(s, janet_ckeywordv("name"));
     if (!janet_checktype(a.name, JANET_NIL)) {
         def->name = janet_to_string(a.name);
     }
 
     /* Set function arity */
-    x = janet_get1(s, janet_csymbolv("arity"));
+    x = janet_get1(s, janet_ckeywordv("arity"));
     def->arity = janet_checkint(x) ? janet_unwrap_integer(x) : 0;
     janet_asm_assert(&a, def->arity >= 0, "arity must be non-negative");
 
-    x = janet_get1(s, janet_csymbolv("max-arity"));
+    x = janet_get1(s, janet_ckeywordv("max-arity"));
     def->max_arity = janet_checkint(x) ? janet_unwrap_integer(x) : def->arity;
     janet_asm_assert(&a, def->max_arity >= def->arity, "max-arity must be greater than or equal to arity");
 
-    x = janet_get1(s, janet_csymbolv("min-arity"));
+    x = janet_get1(s, janet_ckeywordv("min-arity"));
     def->min_arity = janet_checkint(x) ? janet_unwrap_integer(x) : def->arity;
     janet_asm_assert(&a, def->min_arity <= def->arity, "min-arity must be less than or equal to arity");
 
     /* Check vararg */
-    x = janet_get1(s, janet_csymbolv("vararg"));
+    x = janet_get1(s, janet_ckeywordv("vararg"));
     if (janet_truthy(x)) def->flags |= JANET_FUNCDEF_FLAG_VARARG;
 
     /* Check source */
-    x = janet_get1(s, janet_csymbolv("source"));
+    x = janet_get1(s, janet_ckeywordv("source"));
     if (janet_checktype(x, JANET_STRING)) def->source = janet_unwrap_string(x);
 
     /* Create slot aliases */
-    x = janet_get1(s, janet_csymbolv("slots"));
+    x = janet_get1(s, janet_ckeywordv("slots"));
     if (janet_indexed_view(x, &arr, &count)) {
         for (i = 0; i < count; i++) {
             Janet v = arr[i];
@@ -582,7 +576,7 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
     }
 
     /* Parse constants */
-    x = janet_get1(s, janet_csymbolv("constants"));
+    x = janet_get1(s, janet_ckeywordv("constants"));
     if (janet_indexed_view(x, &arr, &count)) {
         def->constants_length = count;
         def->constants = malloc(sizeof(Janet) * (size_t) count);
@@ -591,25 +585,7 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
         }
         for (i = 0; i < count; i++) {
             Janet ct = arr[i];
-            if (janet_checktype(ct, JANET_TUPLE) &&
-                    janet_tuple_length(janet_unwrap_tuple(ct)) > 1 &&
-                    janet_checktype(janet_unwrap_tuple(ct)[0], JANET_SYMBOL)) {
-                const Janet *t = janet_unwrap_tuple(ct);
-                int32_t tcount = janet_tuple_length(t);
-                const uint8_t *macro = janet_unwrap_symbol(t[0]);
-                if (0 == janet_cstrcmp(macro, "quote")) {
-                    def->constants[i] = t[1];
-                } else if (tcount == 3 &&
-                           janet_checktype(t[1], JANET_SYMBOL) &&
-                           0 == janet_cstrcmp(macro, "def")) {
-                    def->constants[i] = t[2];
-                    janet_table_put(&a.constants, t[1], janet_wrap_integer(i));
-                } else {
-                    janet_asm_errorv(&a, janet_formatc("could not parse constant \"%v\"", ct));
-                }
-            } else {
-                def->constants[i] = ct;
-            }
+            def->constants[i] = ct;
         }
     } else {
         def->constants = NULL;
@@ -617,7 +593,7 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
     }
 
     /* Parse sub funcdefs */
-    x = janet_get1(s, janet_csymbolv("closures"));
+    x = janet_get1(s, janet_ckeywordv("closures"));
     if (janet_indexed_view(x, &arr, &count)) {
         int32_t i;
         for (i = 0; i < count; i++) {
@@ -628,7 +604,7 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
             if (subres.status != JANET_ASSEMBLE_OK) {
                 janet_asm_errorv(&a, subres.error);
             }
-            subname = janet_get1(arr[i], janet_csymbolv("name"));
+            subname = janet_get1(arr[i], janet_ckeywordv("name"));
             if (!janet_checktype(subname, JANET_NIL)) {
                 janet_table_put(&a.defs, subname, janet_wrap_integer(def->defs_length));
             }
@@ -647,7 +623,7 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
     }
 
     /* Parse bytecode and labels */
-    x = janet_get1(s, janet_csymbolv("bytecode"));
+    x = janet_get1(s, janet_ckeywordv("bytecode"));
     if (janet_indexed_view(x, &arr, &count)) {
         /* Do labels and find length */
         int32_t blength = 0;
@@ -703,7 +679,7 @@ static JanetAssembleResult janet_asm1(JanetAssembler *parent, Janet source, int
     a.errindex = -1;
 
     /* Check for source mapping */
-    x = janet_get1(s, janet_csymbolv("sourcemap"));
+    x = janet_get1(s, janet_ckeywordv("sourcemap"));
     if (janet_indexed_view(x, &arr, &count)) {
         janet_asm_assert(&a, count == def->bytecode_length, "sourcemap must have the same length as the bytecode");
         def->sourcemap = malloc(sizeof(JanetSourceMapping) * (size_t) count);
@@ -864,33 +840,26 @@ Janet janet_disasm(JanetFuncDef *def) {
     JanetArray *bcode = janet_array(def->bytecode_length);
     JanetArray *constants;
     JanetTable *ret = janet_table(10);
-    janet_table_put(ret, janet_csymbolv("arity"), janet_wrap_integer(def->arity));
-    janet_table_put(ret, janet_csymbolv("min-arity"), janet_wrap_integer(def->min_arity));
-    janet_table_put(ret, janet_csymbolv("max-arity"), janet_wrap_integer(def->max_arity));
-    janet_table_put(ret, janet_csymbolv("bytecode"), janet_wrap_array(bcode));
+    janet_table_put(ret, janet_ckeywordv("arity"), janet_wrap_integer(def->arity));
+    janet_table_put(ret, janet_ckeywordv("min-arity"), janet_wrap_integer(def->min_arity));
+    janet_table_put(ret, janet_ckeywordv("max-arity"), janet_wrap_integer(def->max_arity));
+    janet_table_put(ret, janet_ckeywordv("bytecode"), janet_wrap_array(bcode));
     if (NULL != def->source) {
-        janet_table_put(ret, janet_csymbolv("source"), janet_wrap_string(def->source));
+        janet_table_put(ret, janet_ckeywordv("source"), janet_wrap_string(def->source));
     }
     if (def->flags & JANET_FUNCDEF_FLAG_VARARG) {
-        janet_table_put(ret, janet_csymbolv("vararg"), janet_wrap_true());
+        janet_table_put(ret, janet_ckeywordv("vararg"), janet_wrap_true());
     }
     if (NULL != def->name) {
-        janet_table_put(ret, janet_csymbolv("name"), janet_wrap_string(def->name));
+        janet_table_put(ret, janet_ckeywordv("name"), janet_wrap_string(def->name));
     }
 
     /* Add constants */
     if (def->constants_length > 0) {
         constants = janet_array(def->constants_length);
-        janet_table_put(ret, janet_csymbolv("constants"), janet_wrap_array(constants));
+        janet_table_put(ret, janet_ckeywordv("constants"), janet_wrap_array(constants));
         for (i = 0; i < def->constants_length; i++) {
-            Janet src = def->constants[i];
-            Janet dest;
-            if (janet_checktype(src, JANET_TUPLE)) {
-                dest = janet_wrap_tuple(tup2(janet_csymbolv("quote"), src));
-            } else {
-                dest = src;
-            }
-            constants->data[i] = dest;
+            constants->data[i] = def->constants[i];
         }
         constants->count = def->constants_length;
     }
@@ -912,7 +881,7 @@ Janet janet_disasm(JanetFuncDef *def) {
             sourcemap->data[i] = janet_wrap_tuple(janet_tuple_end(t));
         }
         sourcemap->count = def->bytecode_length;
-        janet_table_put(ret, janet_csymbolv("sourcemap"), janet_wrap_array(sourcemap));
+        janet_table_put(ret, janet_ckeywordv("sourcemap"), janet_wrap_array(sourcemap));
     }
 
     /* Add environments */
@@ -922,7 +891,7 @@ Janet janet_disasm(JanetFuncDef *def) {
             envs->data[i] = janet_wrap_integer(def->environments[i]);
         }
         envs->count = def->environments_length;
-        janet_table_put(ret, janet_csymbolv("environments"), janet_wrap_array(envs));
+        janet_table_put(ret, janet_ckeywordv("environments"), janet_wrap_array(envs));
     }
 
     /* Add closures */
@@ -933,11 +902,11 @@ Janet janet_disasm(JanetFuncDef *def) {
             defs->data[i] = janet_disasm(def->defs[i]);
         }
         defs->count = def->defs_length;
-        janet_table_put(ret, janet_csymbolv("defs"), janet_wrap_array(defs));
+        janet_table_put(ret, janet_ckeywordv("defs"), janet_wrap_array(defs));
     }
 
     /* Add slotcount */
-    janet_table_put(ret, janet_csymbolv("slotcount"), janet_wrap_integer(def->slotcount));
+    janet_table_put(ret, janet_ckeywordv("slotcount"), janet_wrap_integer(def->slotcount));
 
     return janet_wrap_struct(janet_table_to_struct(ret));
 }
@@ -964,7 +933,7 @@ static const JanetReg asm_cfuns[] = {
         "asm", cfun_asm,
         JDOC("(asm assembly)\n\n"
              "Returns a new function that is the compiled result of the assembly.\n"
-             "The syntax for the assembly can be found on the janet wiki. Will throw an\n"
+             "The syntax for the assembly can be found on the Janet website. Will throw an\n"
              "error on invalid assembly.")
     },
     {

src/core/capi.c

@@ -27,6 +27,15 @@
 #include "fiber.h"
 #endif
 
+JANET_NO_RETURN static void janet_top_level_signal(const char *msg) {
+#ifdef JANET_TOP_LEVEL_SIGNAL
+    JANET_TOP_LEVEL_SIGNAL(msg);
+#else
+    fputs(msg, stdout);
+    exit(1);
+#endif
+}
+
 void janet_signalv(JanetSignal sig, Janet message) {
     if (janet_vm_return_reg != NULL) {
         *janet_vm_return_reg = message;
@@ -37,8 +46,8 @@ void janet_signalv(JanetSignal sig, Janet message) {
         longjmp(*janet_vm_jmp_buf, sig);
 #endif
     } else {
-        fputs((const char *)janet_formatc("janet top level signal - %v\n", message), stdout);
-        exit(1);
+        const char *str = (const char *)janet_formatc("janet top level signal - %v\n", message);
+        janet_top_level_signal(str);
     }
 }
 

src/core/compile.c

@@ -596,8 +596,11 @@ static int macroexpand1(
     /* Set env */
     fiberp->env = c->env;
     int lock = janet_gclock();
+    Janet mf_kw = janet_ckeywordv("macro-form");
+    janet_table_put(c->env, mf_kw, x);
     Janet tempOut;
     JanetSignal status = janet_continue(fiberp, janet_wrap_nil(), &tempOut);
+    janet_table_put(c->env, mf_kw, janet_wrap_nil());
     janet_gcunlock(lock);
     if (status != JANET_SIGNAL_OK) {
         const uint8_t *es = janet_formatc("(macro) %V", tempOut);
@@ -747,8 +750,10 @@ JanetFuncDef *janetc_pop_funcdef(JanetCompiler *c) {
     /* Copy upvalue bitset */
     if (scope->ua.count) {
         /* Number of u32s we need to create a bitmask for all slots */
-        int32_t numchunks = (def->slotcount + 31) >> 5;
-        uint32_t *chunks = malloc(sizeof(uint32_t) * numchunks);
+        int32_t slotchunks = (def->slotcount + 31) >> 5;
+        /* numchunks is min of slotchunks and scope->ua.count */
+        int32_t numchunks = slotchunks > scope->ua.count ? scope->ua.count : slotchunks;
+        uint32_t *chunks = calloc(sizeof(uint32_t), slotchunks);
         if (NULL == chunks) {
             JANET_OUT_OF_MEMORY;
         }
@@ -855,10 +860,10 @@ static const JanetReg compile_cfuns[] = {
     {
         "compile", cfun,
         JDOC("(compile ast &opt env source)\n\n"
-             "Compiles an Abstract Syntax Tree (ast) into a janet function. "
+             "Compiles an Abstract Syntax Tree (ast) into a function. "
              "Pair the compile function with parsing functionality to implement "
-             "eval. Returns a janet function and does not modify ast. Throws an "
-             "error if the ast cannot be compiled.")
+             "eval. Returns a new function and does not modify ast. Returns an error "
+             "struct with keys :line, :column, and :error if compilation fails.")
     },
     {NULL, NULL, NULL}
 };

src/core/corelib.c

@@ -643,8 +643,8 @@ static const JanetReg corelib_cfuns[] = {
     {
         "hash", janet_core_hash,
         JDOC("(hash value)\n\n"
-             "Gets a hash value for any janet value. The hash is an integer can be used "
-             "as a cheap hash function for all janet objects. If two values are strictly equal, "
+             "Gets a hash for any value. The hash is an integer can be used "
+             "as a cheap hash function for all values. If two values are strictly equal, "
              "then they will have the same hash value.")
     },
     {
@@ -685,9 +685,9 @@ static const JanetReg corelib_cfuns[] = {
              "\t:all:\tthe value of path verbatim\n"
              "\t:cur:\tthe current file, or (dyn :current-file)\n"
              "\t:dir:\tthe directory containing the current file\n"
-             "\t:name:\tthe filename component of path, with extension if given\n"
+             "\t:name:\tthe name component of path, with extension if given\n"
              "\t:native:\tthe extension used to load natives, .so or .dll\n"
-             "\t:sys:\tthe system path, or (syn :syspath)")
+             "\t:sys:\tthe system path, or (dyn :syspath)")
     },
     {
         "int?", janet_core_check_int,
@@ -742,7 +742,7 @@ static void janet_quick_asm(
     janet_def(env, name, janet_wrap_function(janet_thunk(def)), doc);
 }
 
-/* Macros for easier inline janet assembly */
+/* Macros for easier inline assembly */
 #define SSS(op, a, b, c) ((op) | ((a) << 8) | ((b) << 16) | ((c) << 24))
 #define SS(op, a, b) ((op) | ((a) << 8) | ((b) << 16))
 #define SSI(op, a, b, I) ((op) | ((a) << 8) | ((b) << 16) | ((uint32_t)(I) << 24))
@@ -1004,6 +1004,9 @@ static void janet_load_libs(JanetTable *env) {
 #ifdef JANET_THREADS
     janet_lib_thread(env);
 #endif
+#ifdef JANET_NET
+    janet_lib_net(env);
+#endif
 }
 
 #ifdef JANET_BOOTSTRAP
@@ -1021,7 +1024,7 @@ JanetTable *janet_core_env(JanetTable *replacements) {
     janet_quick_asm(env, JANET_FUN_NEXT,
                     "next", 2, 1, 2, 2, next_asm, sizeof(next_asm),
                     JDOC("(next ds &opt key)\n\n"
-                         "Gets the next key in a datastructure. Can be used to iterate through "
+                         "Gets the next key in a data structure. Can be used to iterate through "
                          "the keys of a data structure in an unspecified order. Keys are guaranteed "
                          "to be seen only once per iteration if they data structure is not mutated "
                          "during iteration. If key is nil, next returns the first key. If next "
@@ -1032,7 +1035,8 @@ JanetTable *janet_core_env(JanetTable *replacements) {
                          "Propagate a signal from a fiber to the current fiber. The resulting "
                          "stack trace from the current fiber will include frames from fiber. If "
                          "fiber is in a state that can be resumed, resuming the current fiber will "
-                         "first resume fiber."));
+                         "first resume fiber. This function can be used to re-raise an error without "
+                         "losing the original stack trace."));
     janet_quick_asm(env, JANET_FUN_DEBUG,
                     "debug", 1, 0, 1, 1, debug_asm, sizeof(debug_asm),
                     JDOC("(debug &opt x)\n\n"
@@ -1104,7 +1108,7 @@ JanetTable *janet_core_env(JanetTable *replacements) {
                      JDOC("(/ & xs)\n\n"
                           "Returns the quotient of xs. If xs is empty, returns 1. If xs has one value x, returns "
                           "the reciprocal of x. Otherwise return the first value of xs repeatedly divided by the remaining "
-                          "values. Division by two integers uses truncating division."));
+                          "values."));
     templatize_varop(env, JANET_FUN_BAND, "band", -1, -1, JOP_BAND,
                      JDOC("(band & xs)\n\n"
                           "Returns the bit-wise and of all values in xs. Each x in xs must be an integer."));

src/core/features.h

@@ -26,7 +26,11 @@
 #define JANET_FEATURES_H_defined
 
 #ifndef _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE 200112L
+#define _POSIX_C_SOURCE 200809L
+#endif
+
+#if defined(WIN32) || defined(_WIN32)
+#define WIN32_LEAN_AND_MEAN
 #endif
 
 /* Needed for realpath on linux */

src/core/fiber.c

@@ -405,6 +405,10 @@ JanetFiber *janet_current_fiber(void) {
     return janet_vm_fiber;
 }
 
+JanetFiber *janet_root_fiber(void) {
+    return janet_vm_root_fiber;
+}
+
 /* CFuns */
 
 static Janet cfun_fiber_getenv(int32_t argc, Janet *argv) {
@@ -508,6 +512,12 @@ static Janet cfun_fiber_current(int32_t argc, Janet *argv) {
     return janet_wrap_fiber(janet_vm_fiber);
 }
 
+static Janet cfun_fiber_root(int32_t argc, Janet *argv) {
+    (void) argv;
+    janet_fixarity(argc, 0);
+    return janet_wrap_fiber(janet_vm_root_fiber);
+}
+
 static Janet cfun_fiber_maxstack(int32_t argc, Janet *argv) {
     janet_fixarity(argc, 1);
     JanetFiber *fiber = janet_getfiber(argv, 0);
@@ -575,6 +585,12 @@ static const JanetReg fiber_cfuns[] = {
              "\t:alive - the fiber is currently running and cannot be resumed\n"
              "\t:new - the fiber has just been created and not yet run")
     },
+    {
+        "fiber/root", cfun_fiber_root,
+        JDOC("(fiber/root)\n\n"
+             "Returns the current root fiber. The root fiber is the oldest ancestor "
+             "that does not have a parent.")
+    },
     {
         "fiber/current", cfun_fiber_current,
         JDOC("(fiber/current)\n\n"

src/core/gc.c

@@ -389,6 +389,9 @@ void janet_collect(void) {
     if (janet_vm_gc_suspend) return;
     depth = JANET_RECURSION_GUARD;
     orig_rootcount = janet_vm_root_count;
+#ifdef JANET_NET
+    janet_net_markloop();
+#endif
     for (i = 0; i < orig_rootcount; i++)
         janet_mark(janet_vm_roots[i]);
     while (orig_rootcount < janet_vm_root_count) {
@@ -530,7 +533,7 @@ void *janet_srealloc(void *mem, size_t size) {
             if (i == 0) break;
         }
     }
-    janet_exit("invalid janet_srealloc");
+    JANET_EXIT("invalid janet_srealloc");
 }
 
 void janet_sfinalizer(void *mem, JanetScratchFinalizer finalizer) {
@@ -551,5 +554,5 @@ void janet_sfree(void *mem) {
             if (i == 0) break;
         }
     }
-    janet_exit("invalid janet_sfree");
+    JANET_EXIT("invalid janet_sfree");
 }

src/core/inttypes.c

@@ -197,6 +197,122 @@ static Janet cfun_it_u64_new(int32_t argc, Janet *argv) {
     return janet_wrap_u64(janet_unwrap_u64(argv[0]));
 }
 
+// Code to support polymorphic comparison.
+//
+// int/u64 and int/s64 support a "compare" method that allows
+// comparison to each other, and to Janet numbers, using the
+// "compare" "compare<" ... functions.
+//
+// In the following code explicit casts are sometimes used to help
+// make it clear when int/float conversions are happening.
+//
+static int compare_double_double(double x, double y) {
+    return (x < y) ? -1 : ((x > y) ? 1 : 0);
+}
+
+static int compare_int64_double(int64_t x, double y) {
+    if (isnan(y)) {
+        return 0; // clojure and python do this
+    } else if ((y > (- ((double) MAX_INT_IN_DBL))) && (y < ((double) MAX_INT_IN_DBL))) {
+        double dx = (double) x;
+        return compare_double_double(dx, y);
+    } else if (y > ((double) INT64_MAX)) {
+        return -1;
+    } else if (y < ((double) INT64_MIN)) {
+        return 1;
+    } else {
+        int64_t yi = (int64_t) y;
+        return (x < yi) ? -1 : ((x > yi) ? 1 : 0);
+    }
+}
+
+static int compare_uint64_double(uint64_t x, double y) {
+    if (isnan(y)) {
+        return 0; // clojure and python do this
+    } else if (y < 0) {
+        return 1;
+    } else if ((y >= 0) && (y < ((double) MAX_INT_IN_DBL))) {
+        double dx = (double) x;
+        return compare_double_double(dx, y);
+    } else if (y > ((double) UINT64_MAX)) {
+        return -1;
+    } else {
+        uint64_t yi = (uint64_t) y;
+        return (x < yi) ? -1 : ((x > yi) ? 1 : 0);
+    }
+}
+
+
+static Janet cfun_it_s64_compare(int32_t argc, Janet *argv) {
+    janet_fixarity(argc, 2);
+    if (janet_is_int(argv[0]) != JANET_INT_S64)
+        janet_panic("compare method requires int/s64 as first argument");
+    int64_t x = janet_unwrap_s64(argv[0]);
+    switch (janet_type(argv[1])) {
+        default:
+            break;
+        case JANET_NUMBER : {
+            double y = janet_unwrap_number(argv[1]);
+            return janet_wrap_number(compare_int64_double(x, y));
+        }
+        case JANET_ABSTRACT: {
+            void *abst = janet_unwrap_abstract(argv[1]);
+            if (janet_abstract_type(abst) == &janet_s64_type) {
+                int64_t y = *(int64_t *)abst;
+                return janet_wrap_number((x < y) ? -1 : (x > y ? 1 : 0));
+            } else if (janet_abstract_type(abst) == &janet_u64_type) {
+                // comparing signed to unsigned -- be careful!
+                uint64_t y = *(uint64_t *)abst;
+                if (x < 0) {
+                    return janet_wrap_number(-1);
+                } else if (y > INT64_MAX) {
+                    return janet_wrap_number(-1);
+                } else {
+                    int64_t y2 = (int64_t) y;
+                    return janet_wrap_number((x < y2) ? -1 : (x > y2 ? 1 : 0));
+                }
+            }
+            break;
+        }
+    }
+    return janet_wrap_nil();
+}
+
+static Janet cfun_it_u64_compare(int32_t argc, Janet *argv) {
+    janet_fixarity(argc, 2);
+    if (janet_is_int(argv[0]) != JANET_INT_U64)  // is this needed?
+        janet_panic("compare method requires int/u64 as first argument");
+    uint64_t x = janet_unwrap_u64(argv[0]);
+    switch (janet_type(argv[1])) {
+        default:
+            break;
+        case JANET_NUMBER : {
+            double y = janet_unwrap_number(argv[1]);
+            return janet_wrap_number(compare_uint64_double(x, y));
+        }
+        case JANET_ABSTRACT: {
+            void *abst = janet_unwrap_abstract(argv[1]);
+            if (janet_abstract_type(abst) == &janet_u64_type) {
+                uint64_t y = *(uint64_t *)abst;
+                return janet_wrap_number((x < y) ? -1 : (x > y ? 1 : 0));
+            } else if (janet_abstract_type(abst) == &janet_s64_type) {
+                // comparing unsigned to signed -- be careful!
+                int64_t y = *(int64_t *)abst;
+                if (y < 0) {
+                    return janet_wrap_number(1);
+                } else if (x > INT64_MAX) {
+                    return janet_wrap_number(1);
+                } else {
+                    int64_t x2 = (int64_t) x;
+                    return janet_wrap_number((x2 < y) ? -1 : (x2 > y ? 1 : 0));
+                }
+            }
+            break;
+        }
+    }
+    return janet_wrap_nil();
+}
+
 #define OPMETHOD(T, type, name, oper) \
 static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
     janet_arity(argc, 2, -1); \
@@ -266,14 +382,6 @@ static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
     return janet_wrap_abstract(box); \
 } \
 
-#define COMPMETHOD(T, type, name, oper) \
-static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
-    janet_fixarity(argc, 2); \
-    T v1 = janet_unwrap_##type(argv[0]); \
-    T v2 = janet_unwrap_##type(argv[1]); \
-    return janet_wrap_boolean(v1 oper v2); \
-}
-
 static Janet cfun_it_s64_mod(int32_t argc, Janet *argv) {
     janet_arity(argc, 2, -1);
     int64_t *box = janet_abstract(&janet_s64_type, sizeof(int64_t));
@@ -316,13 +424,6 @@ OPMETHOD(int64_t, s64, or, |)
 OPMETHOD(int64_t, s64, xor, ^)
 OPMETHOD(int64_t, s64, lshift, <<)
 OPMETHOD(int64_t, s64, rshift, >>)
-COMPMETHOD(int64_t, s64, lt, <)
-COMPMETHOD(int64_t, s64, gt, >)
-COMPMETHOD(int64_t, s64, le, <=)
-COMPMETHOD(int64_t, s64, ge, >=)
-COMPMETHOD(int64_t, s64, eq, ==)
-COMPMETHOD(int64_t, s64, ne, !=)
-
 OPMETHOD(uint64_t, u64, add, +)
 OPMETHOD(uint64_t, u64, sub, -)
 OPMETHODINVERT(uint64_t, u64, subi, -)
@@ -336,18 +437,13 @@ OPMETHOD(uint64_t, u64, or, |)
 OPMETHOD(uint64_t, u64, xor, ^)
 OPMETHOD(uint64_t, u64, lshift, <<)
 OPMETHOD(uint64_t, u64, rshift, >>)
-COMPMETHOD(uint64_t, u64, lt, <)
-COMPMETHOD(uint64_t, u64, gt, >)
-COMPMETHOD(uint64_t, u64, le, <=)
-COMPMETHOD(uint64_t, u64, ge, >=)
-COMPMETHOD(uint64_t, u64, eq, ==)
-COMPMETHOD(uint64_t, u64, ne, !=)
 
 #undef OPMETHOD
 #undef DIVMETHOD
 #undef DIVMETHOD_SIGNED
 #undef COMPMETHOD
 
+
 static JanetMethod it_s64_methods[] = {
     {"+", cfun_it_s64_add},
     {"r+", cfun_it_s64_add},
@@ -361,12 +457,6 @@ static JanetMethod it_s64_methods[] = {
     {"rmod", cfun_it_s64_modi},
     {"%", cfun_it_s64_rem},
     {"r%", cfun_it_s64_remi},
-    {"<", cfun_it_s64_lt},
-    {">", cfun_it_s64_gt},
-    {"<=", cfun_it_s64_le},
-    {">=", cfun_it_s64_ge},
-    {"=", cfun_it_s64_eq},
-    {"!=", cfun_it_s64_ne},
     {"&", cfun_it_s64_and},
     {"r&", cfun_it_s64_and},
     {"|", cfun_it_s64_or},
@@ -375,6 +465,7 @@ static JanetMethod it_s64_methods[] = {
     {"r^", cfun_it_s64_xor},
     {"<<", cfun_it_s64_lshift},
     {">>", cfun_it_s64_rshift},
+    {"compare", cfun_it_s64_compare},
 
     {NULL, NULL}
 };
@@ -392,12 +483,6 @@ static JanetMethod it_u64_methods[] = {
     {"rmod", cfun_it_u64_modi},
     {"%", cfun_it_u64_mod},
     {"r%", cfun_it_u64_modi},
-    {"<", cfun_it_u64_lt},
-    {">", cfun_it_u64_gt},
-    {"<=", cfun_it_u64_le},
-    {">=", cfun_it_u64_ge},
-    {"=", cfun_it_u64_eq},
-    {"!=", cfun_it_u64_ne},
     {"&", cfun_it_u64_and},
     {"r&", cfun_it_u64_and},
     {"|", cfun_it_u64_or},
@@ -406,6 +491,7 @@ static JanetMethod it_u64_methods[] = {
     {"r^", cfun_it_u64_xor},
     {"<<", cfun_it_u64_lshift},
     {">>", cfun_it_u64_rshift},
+    {"compare", cfun_it_u64_compare},
 
     {NULL, NULL}
 };

src/core/io.c

@@ -30,7 +30,9 @@
 #include <errno.h>
 
 #ifndef JANET_WINDOWS
+#include <fcntl.h>
 #include <sys/wait.h>
+#include <unistd.h>
 #endif
 
 static int cfun_io_gc(void *p, size_t len);
@@ -87,18 +89,17 @@ static Janet makef(FILE *f, int flags) {
     JanetFile *iof = (JanetFile *) janet_abstract(&janet_file_type, sizeof(JanetFile));
     iof->file = f;
     iof->flags = flags;
+#ifndef JANET_WINDOWS
+    /* While we would like fopen to set cloexec by default (like O_CLOEXEC) with the e flag, that is
+     * not standard. */
+    if (!(flags & JANET_FILE_NOT_CLOSEABLE))
+        fcntl(fileno(f), F_SETFD, FD_CLOEXEC);
+#endif
     return janet_wrap_abstract(iof);
 }
 
 /* Open a process */
-#ifdef __EMSCRIPTEN__
-static Janet cfun_io_popen(int32_t argc, Janet *argv) {
-    (void) argc;
-    (void) argv;
-    janet_panic("not implemented on this platform");
-    return janet_wrap_nil();
-}
-#else
+#ifndef JANET_NO_PROCESSES
 static Janet cfun_io_popen(int32_t argc, Janet *argv) {
     janet_arity(argc, 1, 2);
     const uint8_t *fname = janet_getstring(argv, 0);
@@ -129,6 +130,7 @@ static Janet cfun_io_popen(int32_t argc, Janet *argv) {
 static Janet cfun_io_temp(int32_t argc, Janet *argv) {
     (void)argv;
     janet_fixarity(argc, 0);
+    // XXX use mkostemp when we can to avoid CLOEXEC race.
     FILE *tmp = tmpfile();
     if (!tmp)
         janet_panicf("unable to create temporary file - %s", strerror(errno));
@@ -239,12 +241,24 @@ static Janet cfun_io_fflush(int32_t argc, Janet *argv) {
     return argv[0];
 }
 
+#ifdef JANET_WINDOWS
+#define pclose _pclose
+#define WEXITSTATUS(x) x
+#endif
+
 /* Cleanup a file */
 static int cfun_io_gc(void *p, size_t len) {
     (void) len;
     JanetFile *iof = (JanetFile *)p;
     if (!(iof->flags & (JANET_FILE_NOT_CLOSEABLE | JANET_FILE_CLOSED))) {
-        return fclose(iof->file);
+        /* We can't panic inside a gc, so just ignore bad statuses here */
+        if (iof->flags & JANET_FILE_PIPED) {
+#ifndef JANET_NO_PROCESSES
+            pclose(iof->file);
+#endif
+        } else {
+            fclose(iof->file);
+        }
     }
     return 0;
 }
@@ -258,16 +272,17 @@ static Janet cfun_io_fclose(int32_t argc, Janet *argv) {
     if (iof->flags & (JANET_FILE_NOT_CLOSEABLE))
         janet_panic("file not closable");
     if (iof->flags & JANET_FILE_PIPED) {
-#ifdef JANET_WINDOWS
-#define pclose _pclose
-#define WEXITSTATUS(x) x
-#endif
+#ifndef JANET_NO_PROCESSES
         int status = pclose(iof->file);
         iof->flags |= JANET_FILE_CLOSED;
         if (status == -1) janet_panic("could not close file");
         return janet_wrap_integer(WEXITSTATUS(status));
+#endif
     } else {
-        if (fclose(iof->file)) janet_panic("could not close file");
+        if (fclose(iof->file)) {
+            iof->flags |= JANET_FILE_NOT_CLOSEABLE;
+            janet_panic("could not close file");
+        }
         iof->flags |= JANET_FILE_CLOSED;
         return janet_wrap_nil();
     }
@@ -640,6 +655,7 @@ static const JanetReg io_cfuns[] = {
              "for the relative number of bytes to seek in the file. n may be a real "
              "number to handle large files of more the 4GB. Returns the file handle.")
     },
+#ifndef JANET_NO_PROCESSES
     {
         "file/popen", cfun_io_popen,
         JDOC("(file/popen path &opt mode)\n\n"
@@ -648,6 +664,7 @@ static const JanetReg io_cfuns[] = {
              "process can be read from the file. In :w mode, the stdin of the process "
              "can be written to. Returns the new file.")
     },
+#endif
     {NULL, NULL, NULL}
 };
 

src/core/marsh.c

@@ -1417,17 +1417,17 @@ static const JanetReg marsh_cfuns[] = {
     {
         "marshal", cfun_marshal,
         JDOC("(marshal x &opt reverse-lookup buffer)\n\n"
-             "Marshal a janet value into a buffer and return the buffer. The buffer "
+             "Marshal a value into a buffer and return the buffer. The buffer "
              "can the later be unmarshalled to reconstruct the initial value. "
              "Optionally, one can pass in a reverse lookup table to not marshal "
              "aliased values that are found in the table. Then a forward"
-             "lookup table can be used to recover the original janet value when "
+             "lookup table can be used to recover the original value when "
              "unmarshalling.")
     },
     {
         "unmarshal", cfun_unmarshal,
         JDOC("(unmarshal buffer &opt lookup)\n\n"
-             "Unmarshal a janet value from a buffer. An optional lookup table "
+             "Unmarshal a value from a buffer. An optional lookup table "
              "can be provided to allow for aliases to be resolved. Returns the value "
              "unmarshalled from the buffer.")
     },

src/core/math.c

@@ -413,7 +413,7 @@ static const JanetReg math_cfuns[] = {
         "math/rng", cfun_rng_make,
         JDOC("(math/rng &opt seed)\n\n"
              "Creates a Psuedo-Random number generator, with an optional seed. "
-             "The seed should be an unsigned 32 bit integer. "
+             "The seed should be an unsigned 32 bit integer or a buffer. "
              "Do not use this for cryptography. Returns a core/rng abstract type.")
     },
     {
@@ -480,7 +480,7 @@ static const JanetReg math_cfuns[] = {
     },
     {
         "math/next", janet_nextafter,
-        JDOC("(math/next y)\n\n"
+        JDOC("(math/next x y)\n\n"
              "Returns the next representable floating point value after x in the direction of y.")
     },
     {NULL, NULL, NULL}

src/core/net.c

@@ -0,0 +1,681 @@
+/*
+* Copyright (c) 2020 Calvin Rose
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+#ifndef JANET_AMALG
+#include "features.h"
+#include <janet.h>
+#include "util.h"
+#endif
+
+#ifdef JANET_NET
+
+#ifdef JANET_WINDOWS
+#include <winsock2.h>
+#include <windows.h>
+#include <ws2tcpip.h>
+#pragma comment (lib, "Ws2_32.lib")
+#pragma comment (lib, "Mswsock.lib")
+#pragma comment (lib, "Advapi32.lib")
+#else
+#include <unistd.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <poll.h>
+#include <netdb.h>
+#include <fcntl.h>
+#endif
+
+/*
+ * Streams
+ */
+
+#define JANET_STREAM_CLOSED 1
+#define JANET_STREAM_READABLE 2
+#define JANET_STREAM_WRITABLE 4
+
+static int janet_stream_close(void *p, size_t s);
+static int janet_stream_getter(void *p, Janet key, Janet *out);
+static const JanetAbstractType StreamAT = {
+    "core/stream",
+    janet_stream_close,
+    NULL,
+    janet_stream_getter,
+    JANET_ATEND_GET
+};
+
+#ifdef JANET_WINDOWS
+typedef struct {
+    SOCKET fd;
+    int flags;
+} JanetStream;
+#define JSOCKCLOSE(x) closesocket(x)
+#define JSOCKDEFAULT INVALID_SOCKET
+#define JLASTERR WSAGetLastError()
+#define JSOCKVALID(x) ((x) != INVALID_SOCKET)
+#define JEINTR WSAEINTR
+#define JEWOULDBLOCK WSAEWOULDBLOCK
+#define JEAGAIN WSAEWOULDBLOCK
+#define JPOLL WSAPoll
+#define JPollStruct WSAPOLLFD
+#define JSock SOCKET
+#define JReadInt long
+#define JSOCKFLAGS 0
+static JanetStream *make_stream(SOCKET fd, int flags) {
+    u_long iMode = 0;
+    JanetStream *stream = janet_abstract(&StreamAT, sizeof(JanetStream));
+    ioctlsocket(fd, FIONBIO, &iMode);
+    stream->fd = fd;
+    stream->flags = flags;
+    return stream;
+}
+#else
+typedef struct {
+    int fd;
+    int flags;
+} JanetStream;
+#define JSOCKCLOSE(x) close(x)
+#define JSOCKDEFAULT 0
+#define JLASTERR errno
+#define JSOCKVALID(x) ((x) >= 0)
+#define JEINTR EINTR
+#define JEWOULDBLOCK EWOULDBLOCK
+#define JEAGAIN EAGAIN
+#define JPOLL poll
+#define JPollStruct struct pollfd
+#define JSock int
+#define JReadInt ssize_t
+#ifdef SOCK_CLOEXEC
+#define JSOCKFLAGS SOCK_CLOEXEC
+#else
+#define JSOCKFLAGS 0
+#endif
+static JanetStream *make_stream(int fd, int flags) {
+    JanetStream *stream = janet_abstract(&StreamAT, sizeof(JanetStream));
+#ifndef SOCK_CLOEXEC
+    int extra = O_CLOEXEC;
+#else
+    int extra = 0;
+#endif
+    fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK | extra);
+    stream->fd = fd;
+    stream->flags = flags;
+    return stream;
+}
+#endif
+
+/* We pass this flag to all send calls to prevent sigpipe */
+#ifndef MSG_NOSIGNAL
+#define MSG_NOSIGNAL 0
+#endif
+
+static int janet_stream_close(void *p, size_t s) {
+    (void) s;
+    JanetStream *stream = p;
+    if (!(stream->flags & JANET_STREAM_CLOSED)) {
+        stream->flags |= JANET_STREAM_CLOSED;
+        JSOCKCLOSE(stream->fd);
+    }
+    return 0;
+}
+
+/*
+ * Event loop
+ */
+
+/* This large struct describes a waiting file descriptor, as well
+ * as what to do when we get an event for it. It is a variant type, where
+ * each variant implements a simple state machine. */
+typedef struct {
+
+    /* File descriptor to listen for events on. */
+    JanetStream *stream;
+
+    /* Fiber to resume when event finishes. Can be NULL, in which case,
+     * no fiber is resumed when event completes. */
+    JanetFiber *fiber;
+
+    /* What kind of event we are listening for.
+     * As more IO functionality get's added, we can
+     * expand this. */
+    enum {
+        JLE_READ_CHUNK,
+        JLE_READ_SOME,
+        JLE_READ_ACCEPT,
+        JLE_CONNECT,
+        JLE_WRITE_FROM_BUFFER,
+        JLE_WRITE_FROM_STRINGLIKE
+    } event_type;
+
+    /* Each variant can have a different payload. */
+    union {
+
+        /* JLE_READ_CHUNK/JLE_READ_SOME */
+        struct {
+            int32_t bytes_left;
+            JanetBuffer *buf;
+        } read_chunk;
+
+        /* JLE_READ_ACCEPT */
+        struct {
+            JanetFunction *handler;
+        } read_accept;
+
+        /* JLE_WRITE_FROM_BUFFER */
+        struct {
+            JanetBuffer *buf;
+            int32_t start;
+        } write_from_buffer;
+
+        /* JLE_WRITE_FROM_STRINGLIKE */
+        struct {
+            const uint8_t *str;
+            int32_t start;
+        } write_from_stringlike;
+
+    } data;
+
+} JanetLoopFD;
+
+#define JANET_LOOPFD_MAX 1024
+
+/* Global loop data */
+JANET_THREAD_LOCAL JPollStruct janet_vm_pollfds[JANET_LOOPFD_MAX];
+JANET_THREAD_LOCAL JanetLoopFD janet_vm_loopfds[JANET_LOOPFD_MAX];
+JANET_THREAD_LOCAL int janet_vm_loop_count;
+
+/* We could also add/remove gc roots. This is easier for now. */
+void janet_net_markloop(void) {
+    for (int i = 0; i < janet_vm_loop_count; i++) {
+        JanetLoopFD lfd = janet_vm_loopfds[i];
+        if (lfd.fiber != NULL) {
+            janet_mark(janet_wrap_fiber(lfd.fiber));
+        }
+        janet_mark(janet_wrap_abstract(lfd.stream));
+        switch (lfd.event_type) {
+            default:
+                break;
+            case JLE_READ_CHUNK:
+            case JLE_READ_SOME:
+                janet_mark(janet_wrap_buffer(lfd.data.read_chunk.buf));
+                break;
+            case JLE_READ_ACCEPT:
+                janet_mark(janet_wrap_function(lfd.data.read_accept.handler));
+                break;
+            case JLE_CONNECT:
+                break;
+            case JLE_WRITE_FROM_BUFFER:
+                janet_mark(janet_wrap_buffer(lfd.data.write_from_buffer.buf));
+                break;
+            case JLE_WRITE_FROM_STRINGLIKE:
+                janet_mark(janet_wrap_string(lfd.data.write_from_stringlike.str));
+        }
+    }
+}
+
+/* Add a loop fd to the global event loop */
+static int janet_loop_schedule(JanetLoopFD lfd, short events) {
+    if (janet_vm_loop_count == JANET_LOOPFD_MAX) {
+        return -1;
+    }
+    int index = janet_vm_loop_count++;
+    janet_vm_loopfds[index] = lfd;
+    janet_vm_pollfds[index].fd = lfd.stream->fd;
+    janet_vm_pollfds[index].events = events;
+    janet_vm_pollfds[index].revents = 0;
+    return index;
+}
+
+/* Remove event from list */
+static void janet_loop_rmindex(int index) {
+    janet_vm_loopfds[index] = janet_vm_loopfds[--janet_vm_loop_count];
+    janet_vm_pollfds[index] = janet_vm_pollfds[janet_vm_loop_count];
+}
+
+
+/* Return delta in number of loop fds. Abstracted out so
+ * we can separate out the polling logic */
+static size_t janet_loop_event(size_t index) {
+    JanetLoopFD *jlfd = janet_vm_loopfds + index;
+    JanetStream *stream = jlfd->stream;
+    JSock fd = stream->fd;
+    int ret = 1;
+    int should_resume = 0;
+    Janet resumeval = janet_wrap_nil();
+    if (stream->flags & JANET_STREAM_CLOSED) {
+        should_resume = 1;
+        ret = 0;
+    } else {
+        switch (jlfd->event_type) {
+            case JLE_READ_CHUNK:
+            case JLE_READ_SOME: {
+                JanetBuffer *buffer = jlfd->data.read_chunk.buf;
+                int32_t bytes_left = jlfd->data.read_chunk.bytes_left;
+                janet_buffer_extra(buffer, bytes_left);
+                if (!(stream->flags & JANET_STREAM_READABLE)) {
+                    should_resume = 1;
+                    ret = 0;
+                    break;
+                }
+                JReadInt nread;
+                do {
+                    nread = recv(fd, buffer->data + buffer->count, bytes_left, 0);
+                } while (nread == -1 && JLASTERR == JEINTR);
+                if (JLASTERR == JEAGAIN || JLASTERR == JEWOULDBLOCK) {
+                    ret = 1;
+                    break;
+                }
+
+                if (nread > 0) {
+                    buffer->count += nread;
+                    bytes_left -= nread;
+                } else {
+                    bytes_left = 0;
+                }
+                if (jlfd->event_type == JLE_READ_SOME || bytes_left == 0) {
+                    should_resume = 1;
+                    if (nread > 0) {
+                        resumeval = janet_wrap_buffer(buffer);
+                    }
+                    ret = 0;
+                } else {
+                    jlfd->data.read_chunk.bytes_left = bytes_left;
+                    ret = 1;
+                }
+                break;
+            }
+            case JLE_READ_ACCEPT: {
+                JSock connfd = accept(fd, NULL, NULL);
+                if (JSOCKVALID(connfd)) {
+                    /* Made a new connection socket */
+                    JanetStream *stream = make_stream(connfd, JANET_STREAM_READABLE | JANET_STREAM_WRITABLE);
+                    Janet streamv = janet_wrap_abstract(stream);
+                    JanetFunction *handler = jlfd->data.read_accept.handler;
+                    Janet out;
+                    JanetFiber *fiberp = NULL;
+                    /* Launch connection fiber */
+                    JanetSignal sig = janet_pcall(handler, 1, &streamv, &out, &fiberp);
+                    if (sig != JANET_SIGNAL_OK && sig != JANET_SIGNAL_EVENT) {
+                        janet_stacktrace(fiberp, out);
+                    }
+                }
+                ret = JANET_LOOPFD_MAX;
+                break;
+            }
+            case JLE_WRITE_FROM_BUFFER:
+            case JLE_WRITE_FROM_STRINGLIKE: {
+                int32_t start, len;
+                const uint8_t *bytes;
+                if (!(stream->flags & JANET_STREAM_WRITABLE)) {
+                    should_resume = 1;
+                    ret = 0;
+                    break;
+                }
+                if (jlfd->event_type == JLE_WRITE_FROM_BUFFER) {
+                    JanetBuffer *buffer = jlfd->data.write_from_buffer.buf;
+                    bytes = buffer->data;
+                    len = buffer->count;
+                    start = jlfd->data.write_from_buffer.start;
+                } else {
+                    bytes = jlfd->data.write_from_stringlike.str;
+                    len = janet_string_length(bytes);
+                    start = jlfd->data.write_from_stringlike.start;
+                }
+                if (start < len) {
+                    int32_t nbytes = len - start;
+                    JReadInt nwrote;
+                    do {
+                        nwrote = send(fd, bytes + start, nbytes, MSG_NOSIGNAL);
+                    } while (nwrote == -1 && JLASTERR == JEINTR);
+                    if (nwrote > 0) {
+                        start += nwrote;
+                    } else {
+                        start = len;
+                    }
+                }
+                if (start >= len) {
+                    should_resume = 1;
+                    ret = 0;
+                } else {
+                    if (jlfd->event_type == JLE_WRITE_FROM_BUFFER) {
+                        jlfd->data.write_from_buffer.start = start;
+                    } else {
+                        jlfd->data.write_from_stringlike.start = start;
+                    }
+                    ret = 1;
+                }
+                break;
+            }
+            case JLE_CONNECT: {
+                break;
+            }
+        }
+    }
+
+    /* Resume a fiber for some events */
+    if (NULL != jlfd->fiber && should_resume) {
+        /* Resume the fiber */
+        Janet out;
+        JanetSignal sig = janet_continue(jlfd->fiber, resumeval, &out);
+        if (sig != JANET_SIGNAL_OK && sig != JANET_SIGNAL_EVENT) {
+            janet_stacktrace(jlfd->fiber, out);
+        }
+    }
+
+    /* Remove this handler from the handler pool. */
+    if (should_resume) janet_loop_rmindex((int) index);
+
+    return ret;
+}
+
+static void janet_loop1(void) {
+    /* Remove closed file descriptors */
+    for (int i = 0; i < janet_vm_loop_count;) {
+        if (janet_vm_loopfds[i].stream->flags & JANET_STREAM_CLOSED) {
+            janet_loop_rmindex(i);
+        } else {
+            i++;
+        }
+    }
+    /* Poll */
+    if (janet_vm_loop_count == 0) return;
+    int ready;
+    do {
+        ready = JPOLL(janet_vm_pollfds, janet_vm_loop_count, -1);
+    } while (ready == -1 && JLASTERR == JEINTR);
+    if (ready == -1) return;
+    /* Handle events */
+    for (int i = 0; i < janet_vm_loop_count;) {
+        int revents = janet_vm_pollfds[i].revents;
+        janet_vm_pollfds[i].revents = 0;
+        if ((janet_vm_pollfds[i].events | POLLHUP | POLLERR) & revents) {
+            size_t delta = janet_loop_event(i);
+            i += (int) delta;
+        } else {
+            i++;
+        }
+    }
+}
+
+void janet_loop(void) {
+    while (janet_vm_loop_count) {
+        janet_loop1();
+    }
+}
+
+/*
+ * Scheduling Helpers
+ */
+
+#define JANET_SCHED_FSOME 1
+
+JANET_NO_RETURN static void janet_sched_read(JanetStream *stream, JanetBuffer *buf, int32_t nbytes, int flags) {
+    JanetLoopFD lfd;
+    lfd.stream = stream;
+    lfd.fiber = janet_root_fiber();
+    lfd.event_type = (flags & JANET_SCHED_FSOME) ? JLE_READ_SOME : JLE_READ_CHUNK;
+    lfd.data.read_chunk.buf = buf;
+    lfd.data.read_chunk.bytes_left = nbytes;
+    janet_loop_schedule(lfd, POLLIN);
+    janet_signalv(JANET_SIGNAL_EVENT, janet_wrap_nil());
+}
+
+JANET_NO_RETURN static void janet_sched_write_buffer(JanetStream *stream, JanetBuffer *buf) {
+    JanetLoopFD lfd;
+    lfd.stream = stream;
+    lfd.fiber = janet_root_fiber();
+    lfd.event_type = JLE_WRITE_FROM_BUFFER;
+    lfd.data.write_from_buffer.buf = buf;
+    lfd.data.write_from_buffer.start = 0;
+    janet_loop_schedule(lfd, POLLOUT);
+    janet_signalv(JANET_SIGNAL_EVENT, janet_wrap_nil());
+}
+
+JANET_NO_RETURN static void janet_sched_write_stringlike(JanetStream *stream, const uint8_t *str) {
+    JanetLoopFD lfd;
+    lfd.stream = stream;
+    lfd.fiber = janet_root_fiber();
+    lfd.event_type = JLE_WRITE_FROM_STRINGLIKE;
+    lfd.data.write_from_stringlike.str = str;
+    lfd.data.write_from_stringlike.start = 0;
+    janet_loop_schedule(lfd, POLLOUT);
+    janet_signalv(JANET_SIGNAL_EVENT, janet_wrap_nil());
+}
+
+/* Needs argc >= offset + 2 */
+static struct addrinfo *janet_get_addrinfo(Janet *argv, int32_t offset) {
+    /* Get host and port */
+    const char *host = janet_getcstring(argv, offset);
+    const char *port;
+    if (janet_checkint(argv[offset + 1])) {
+        port = (const char *)janet_to_string(argv[offset + 1]);
+    } else {
+        port = janet_getcstring(argv, offset + 1);
+    }
+    /* getaddrinfo */
+    struct addrinfo *ai = NULL;
+    struct addrinfo hints;
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_protocol = 0;
+    hints.ai_flags = AI_PASSIVE;
+    int status = getaddrinfo(host, port, &hints, &ai);
+    if (status) {
+        janet_panicf("could not get address info: %s", gai_strerror(status));
+    }
+    return ai;
+}
+
+/*
+ * C Funs
+ */
+
+static Janet cfun_net_connect(int32_t argc, Janet *argv) {
+    janet_fixarity(argc, 2);
+
+    struct addrinfo *ai = janet_get_addrinfo(argv, 0);
+
+    /* Create socket */
+    JSock sock = socket(ai->ai_family, ai->ai_socktype | JSOCKFLAGS, ai->ai_protocol);
+    if (!JSOCKVALID(sock)) {
+        freeaddrinfo(ai);
+        janet_panic("could not create socket");
+    }
+
+    /* Connect to socket */
+    int status = connect(sock, ai->ai_addr, (int) ai->ai_addrlen);
+    freeaddrinfo(ai);
+    if (status == -1) {
+        JSOCKCLOSE(sock);
+        janet_panic("could not connect to socket");
+    }
+
+    /* Wrap socket in abstract type JanetStream */
+    JanetStream *stream = make_stream(sock, JANET_STREAM_READABLE | JANET_STREAM_WRITABLE);
+    return janet_wrap_abstract(stream);
+}
+
+static Janet cfun_net_server(int32_t argc, Janet *argv) {
+    janet_fixarity(argc, 3);
+
+    /* Get host, port, and handler*/
+    JanetFunction *fun = janet_getfunction(argv, 2);
+
+    struct addrinfo *ai = janet_get_addrinfo(argv, 0);
+
+    /* Check all addrinfos in a loop for the first that we can bind to. */
+    JSock sfd = JSOCKDEFAULT;
+    struct addrinfo *rp = NULL;
+    for (rp = ai; rp != NULL; rp = rp->ai_next) {
+        sfd = socket(rp->ai_family, rp->ai_socktype | JSOCKFLAGS, rp->ai_protocol);
+        if (!JSOCKVALID(sfd)) continue;
+        /* Set various socket options */
+        int enable = 1;
+        if (setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (char *) &enable, sizeof(int)) < 0) {
+            JSOCKCLOSE(sfd);
+            janet_panic("setsockopt(SO_REUSEADDR) failed");
+        }
+#ifdef SO_NOSIGPIPE
+        if (setsockopt(sfd, SOL_SOCKET, SO_NOSIGPIPE, &enable, sizeof(int)) < 0) {
+            JSOCKCLOSE(sfd);
+            janet_panic("setsockopt(SO_NOSIGPIPE) failed");
+        }
+#endif
+#ifdef SO_REUSEPORT
+        if (setsockopt(sfd, SOL_SOCKET, SO_REUSEPORT, &enable, sizeof(int)) < 0) {
+            JSOCKCLOSE(sfd);
+            janet_panic("setsockopt(SO_REUSEPORT) failed");
+        }
+#endif
+        /* Bind */
+        if (bind(sfd, rp->ai_addr, (int) rp->ai_addrlen) == 0) break;
+        JSOCKCLOSE(sfd);
+    }
+    if (NULL == rp) {
+        freeaddrinfo(ai);
+        janet_panic("could not bind to any sockets");
+    }
+
+    /* listen */
+    int status = listen(sfd, 1024);
+    freeaddrinfo(ai);
+    if (status) {
+        JSOCKCLOSE(sfd);
+        janet_panic("could not listen on file descriptor");
+    }
+
+    /* Put sfd on our loop */
+    JanetLoopFD lfd = {0};
+    lfd.stream = make_stream(sfd, 0);
+    lfd.event_type = JLE_READ_ACCEPT;
+    lfd.data.read_accept.handler = fun;
+    janet_loop_schedule(lfd, POLLIN);
+
+    return janet_wrap_abstract(lfd.stream);
+}
+
+static Janet cfun_stream_read(int32_t argc, Janet *argv) {
+    janet_arity(argc, 2, 3);
+    JanetStream *stream = janet_getabstract(argv, 0, &StreamAT);
+    int32_t n = janet_getnat(argv, 1);
+    JanetBuffer *buffer = janet_optbuffer(argv, argc, 2, 10);
+    janet_sched_read(stream, buffer, n, JANET_SCHED_FSOME);
+}
+
+static Janet cfun_stream_chunk(int32_t argc, Janet *argv) {
+    janet_arity(argc, 2, 3);
+    JanetStream *stream = janet_getabstract(argv, 0, &StreamAT);
+    int32_t n = janet_getnat(argv, 1);
+    JanetBuffer *buffer = janet_optbuffer(argv, argc, 2, 10);
+    janet_sched_read(stream, buffer, n, 0);
+}
+
+static Janet cfun_stream_close(int32_t argc, Janet *argv) {
+    janet_fixarity(argc, 1);
+    JanetStream *stream = janet_getabstract(argv, 0, &StreamAT);
+    janet_stream_close(stream, 0);
+    return janet_wrap_nil();
+}
+
+static Janet cfun_stream_write(int32_t argc, Janet *argv) {
+    janet_fixarity(argc, 2);
+    JanetStream *stream = janet_getabstract(argv, 0, &StreamAT);
+    if (janet_checktype(argv[1], JANET_BUFFER)) {
+        janet_sched_write_buffer(stream, janet_getbuffer(argv, 1));
+    } else {
+        JanetByteView bytes = janet_getbytes(argv, 1);
+        janet_sched_write_stringlike(stream, bytes.bytes);
+    }
+}
+
+static const JanetMethod stream_methods[] = {
+    {"chunk", cfun_stream_chunk},
+    {"close", cfun_stream_close},
+    {"read", cfun_stream_read},
+    {"write", cfun_stream_write},
+    {NULL, NULL}
+};
+
+static int janet_stream_getter(void *p, Janet key, Janet *out) {
+    (void) p;
+    if (!janet_checktype(key, JANET_KEYWORD)) return 0;
+    return janet_getmethod(janet_unwrap_keyword(key), stream_methods, out);
+}
+
+static const JanetReg net_cfuns[] = {
+    {
+        "net/server", cfun_net_server,
+        JDOC("(net/server host port handler)\n\n"
+             "Start a TCP server. handler is a function that will be called with a stream "
+             "on each connection to the server. Returns a new stream that is neither readable nor "
+             "writeable.")
+    },
+    {
+        "net/read", cfun_stream_read,
+        JDOC("(net/read stream nbytes &opt buf)\n\n"
+             "Read up to n bytes from a stream, suspending the current fiber until the bytes are available. "
+             "If less than n bytes are available (and more than 0), will push those bytes and return early. "
+             "Returns a buffer with up to n more bytes in it.")
+    },
+    {
+        "net/chunk", cfun_stream_chunk,
+        JDOC("(net/chunk stream nbytes &opt buf)\n\n"
+             "Same a net/read, but will wait for all n bytes to arrive rather than return early.")
+    },
+    {
+        "net/write", cfun_stream_write,
+        JDOC("(net/write stream data)\n\n"
+             "Write data to a stream, suspending the current fiber until the write "
+             "completes. Returns stream.")
+    },
+    {
+        "net/close", cfun_stream_close,
+        JDOC("(net/close stream)\n\n"
+             "Close a stream so that no further communication can occur.")
+    },
+    {
+        "net/connect", cfun_net_connect,
+        JDOC("(net/connect host port)\n\n"
+             "Open a connection to communicate with a server. Returns a duplex stream "
+             "that can be used to communicate with the server.")
+    },
+    {NULL, NULL, NULL}
+};
+
+void janet_lib_net(JanetTable *env) {
+    janet_vm_loop_count = 0;
+#ifdef JANET_WINDOWS
+    WSADATA wsaData;
+    janet_assert(!WSAStartup(MAKEWORD(2, 2), &wsaData), "could not start winsock");
+#endif
+    janet_core_cfuns(env, NULL, net_cfuns);
+}
+
+void janet_net_deinit(void) {
+#ifdef JANET_WINDOWS
+    WSACleanup();
+#endif
+}
+
+#endif

src/core/os.c

@@ -182,18 +182,9 @@ static Janet os_exit(int32_t argc, Janet *argv) {
     return janet_wrap_nil();
 }
 
-#ifdef JANET_REDUCED_OS
-/* Provide a dud os/getenv so boot.janet and init.janet work, but nothing else */
-
-static Janet os_getenv(int32_t argc, Janet *argv) {
-    (void) argv;
-    janet_arity(argc, 1, 2);
-    return janet_wrap_nil();
-}
-
-#else
-/* Provide full os functionality */
+#ifndef JANET_REDUCED_OS
 
+#ifndef JANET_NO_PROCESSES
 /* Get env for os_execute */
 static char **os_execute_env(int32_t argc, const Janet *argv) {
     char **envp = NULL;
@@ -348,7 +339,7 @@ static Janet os_execute(int32_t argc, Janet *argv) {
 
     JanetBuffer *buf = os_exec_escape(exargs);
     if (buf->count > 8191) {
-        janet_panic("command line string too long");
+        janet_panic("command line string too long (max 8191 characters)");
     }
     const char *path = (const char *) janet_unwrap_string(exargs.items[0]);
     char *cargv[2] = {(char *) buf->data, NULL};
@@ -389,15 +380,26 @@ static Janet os_execute(int32_t argc, Janet *argv) {
     char *const *cargv = (char *const *)child_argv;
 
     /* Use posix_spawn to spawn new process */
+
+    int use_environ = !janet_flag_at(flags, 0);
+
+    if (use_environ) {
+        janet_lock_environ();
+    }
+
     pid_t pid;
     if (janet_flag_at(flags, 1)) {
         status = posix_spawnp(&pid,
                               child_argv[0], NULL, NULL, cargv,
-                              janet_flag_at(flags, 0) ? envp : environ);
+                              use_environ ? environ : envp);
     } else {
         status = posix_spawn(&pid,
                              child_argv[0], NULL, NULL, cargv,
-                             janet_flag_at(flags, 0) ? envp : environ);
+                             use_environ ? environ : envp);
+    }
+
+    if (use_environ) {
+        janet_unlock_environ();
     }
 
     /* Wait for child */
@@ -433,6 +435,8 @@ static Janet os_shell(int32_t argc, Janet *argv) {
            : janet_wrap_boolean(stat);
 }
 
+#endif /* JANET_NO_PROCESSES */
+
 static Janet os_environ(int32_t argc, Janet *argv) {
     (void) argv;
     janet_fixarity(argc, 0);
@@ -606,7 +610,7 @@ static Janet os_cryptorand(int32_t argc, Janet *argv) {
        In both cases, use this fallback path for now... */
     int rc;
     int randfd;
-    RETRY_EINTR(randfd, open("/dev/urandom", O_RDONLY));
+    RETRY_EINTR(randfd, open("/dev/urandom", O_RDONLY | O_CLOEXEC));
     if (randfd < 0)
         janet_panic(genericerr);
     while (n > 0) {
@@ -753,8 +757,8 @@ static Janet os_mktime(int32_t argc, Janet *argv) {
         t = mktime(&t_info);
     } else {
         /* utc time */
-#ifdef __sun
-        janet_panic("os/mktime UTC not supported on Solaris");
+#ifdef JANET_NO_UTC_MKTIME
+        janet_panic("os/mktime UTC not supported on this platform");
         return janet_wrap_nil();
 #else
         t = timegm(&t_info);
@@ -768,6 +772,12 @@ static Janet os_mktime(int32_t argc, Janet *argv) {
     return janet_wrap_number((double)t);
 }
 
+#ifdef JANET_NO_SYMLINKS
+#define j_symlink link
+#else
+#define j_symlink symlink
+#endif
+
 static Janet os_link(int32_t argc, Janet *argv) {
     janet_arity(argc, 2, 3);
 #ifdef JANET_WINDOWS
@@ -778,7 +788,7 @@ static Janet os_link(int32_t argc, Janet *argv) {
 #else
     const char *oldpath = janet_getcstring(argv, 0);
     const char *newpath = janet_getcstring(argv, 1);
-    int res = ((argc == 3 && janet_truthy(argv[2])) ? symlink : link)(oldpath, newpath);
+    int res = ((argc == 3 && janet_truthy(argv[2])) ? j_symlink : link)(oldpath, newpath);
     if (-1 == res) janet_panicf("%s: %s -> %s", strerror(errno), oldpath, newpath);
     return janet_wrap_nil();
 #endif
@@ -794,12 +804,14 @@ static Janet os_symlink(int32_t argc, Janet *argv) {
 #else
     const char *oldpath = janet_getcstring(argv, 0);
     const char *newpath = janet_getcstring(argv, 1);
-    int res = symlink(oldpath, newpath);
+    int res = j_symlink(oldpath, newpath);
     if (-1 == res) janet_panicf("%s: %s -> %s", strerror(errno), oldpath, newpath);
     return janet_wrap_nil();
 #endif
 }
 
+#undef j_symlink
+
 static Janet os_mkdir(int32_t argc, Janet *argv) {
     janet_fixarity(argc, 1);
     const char *path = janet_getcstring(argv, 0);
@@ -865,6 +877,7 @@ static Janet os_remove(int32_t argc, Janet *argv) {
     return janet_wrap_nil();
 }
 
+#ifndef JANET_NO_SYMLINKS
 static Janet os_readlink(int32_t argc, Janet *argv) {
     janet_fixarity(argc, 1);
 #ifdef JANET_WINDOWS
@@ -881,6 +894,7 @@ static Janet os_readlink(int32_t argc, Janet *argv) {
     return janet_stringv((const uint8_t *)buffer, len);
 #endif
 }
+#endif
 
 #ifdef JANET_WINDOWS
 
@@ -1149,6 +1163,7 @@ static Janet os_chmod(int32_t argc, Janet *argv) {
     return janet_wrap_nil();
 }
 
+#ifndef JANET_NO_UMASK
 static Janet os_umask(int32_t argc, Janet *argv) {
     janet_fixarity(argc, 1);
     int mask = (int) os_getmode(argv, 0);
@@ -1159,6 +1174,7 @@ static Janet os_umask(int32_t argc, Janet *argv) {
 #endif
     return janet_wrap_integer(janet_perm_to_unix(res));
 }
+#endif
 
 static Janet os_dir(int32_t argc, Janet *argv) {
     janet_arity(argc, 1, 2);
@@ -1208,17 +1224,16 @@ static Janet os_rename(int32_t argc, Janet *argv) {
 
 static Janet os_realpath(int32_t argc, Janet *argv) {
     janet_fixarity(argc, 1);
-#ifdef JANET_WINDOWS
-    (void) argv;
-    janet_panic("os/realpath not supported on Windows");
-#else
     const char *src = janet_getcstring(argv, 0);
+#ifdef JANET_WINDOWS
+    char *dest = _fullpath(NULL, src, _MAX_PATH);
+#else
     char *dest = realpath(src, NULL);
+#endif
     if (NULL == dest) janet_panicf("%s: %s", strerror(errno), src);
     Janet ret = janet_cstringv(dest);
     free(dest);
     return ret;
-#endif
 }
 
 static Janet os_permission_string(int32_t argc, Janet *argv) {
@@ -1251,12 +1266,8 @@ static const JanetReg os_cfuns[] = {
              "\t:freebsd\n"
              "\t:openbsd\n"
              "\t:netbsd\n"
-             "\t:posix - A POSIX compatible system (default)")
-    },
-    {
-        "os/getenv", os_getenv,
-        JDOC("(os/getenv variable &opt dflt)\n\n"
-             "Get the string value of an environment variable.")
+             "\t:posix - A POSIX compatible system (default)\n\n"
+             "May also return a custom keyword specified at build time.")
     },
     {
         "os/arch", os_arch,
@@ -1276,11 +1287,16 @@ static const JanetReg os_cfuns[] = {
         JDOC("(os/environ)\n\n"
              "Get a copy of the os environment table.")
     },
+    {
+        "os/getenv", os_getenv,
+        JDOC("(os/getenv variable &opt dflt)\n\n"
+             "Get the string value of an environment variable.")
+    },
     {
         "os/dir", os_dir,
         JDOC("(os/dir dir &opt array)\n\n"
              "Iterate over files and subdirectories in a directory. Returns an array of paths parts, "
-             "with only the filename or directory name and no prefix.")
+             "with only the file name or directory name and no prefix.")
     },
     {
         "os/stat", os_stat,
@@ -1299,7 +1315,7 @@ static const JanetReg os_cfuns[] = {
              "\t:blocks - number of blocks in file. 0 on windows\n"
              "\t:blocksize - size of blocks in file. 0 on windows\n"
              "\t:accessed - timestamp when file last accessed\n"
-             "\t:changed - timestamp when file last chnaged (permissions changed)\n"
+             "\t:changed - timestamp when file last changed (permissions changed)\n"
              "\t:modified - timestamp when file last modified (content changed)\n")
     },
     {
@@ -1326,11 +1342,13 @@ static const JanetReg os_cfuns[] = {
         JDOC("(os/cd path)\n\n"
              "Change current directory to path. Returns nil on success, errors on failure.")
     },
+#ifndef JANET_NO_UMASK
     {
         "os/umask", os_umask,
         JDOC("(os/umask mask)\n\n"
              "Set a new umask, returns the old umask.")
     },
+#endif
     {
         "os/mkdir", os_mkdir,
         JDOC("(os/mkdir path)\n\n"
@@ -1356,6 +1374,7 @@ static const JanetReg os_cfuns[] = {
              "Iff symlink is falsey or not provided, "
              "creates a hard link. Does not work on Windows.")
     },
+#ifndef JANET_NO_SYMLINKS
     {
         "os/symlink", os_symlink,
         JDOC("(os/symlink oldpath newpath)\n\n"
@@ -1366,6 +1385,8 @@ static const JanetReg os_cfuns[] = {
         JDOC("(os/readlink path)\n\n"
              "Read the contents of a symbolic link. Does not work on Windows.\n")
     },
+#endif
+#ifndef JANET_NO_PROCESSES
     {
         "os/execute", os_execute,
         JDOC("(os/execute args &opts flags env)\n\n"
@@ -1383,6 +1404,7 @@ static const JanetReg os_cfuns[] = {
         JDOC("(os/shell str)\n\n"
              "Pass a command string str directly to the system shell.")
     },
+#endif
     {
         "os/setenv", os_setenv,
         JDOC("(os/setenv variable value)\n\n"

src/core/parse.c

@@ -167,12 +167,12 @@ static void popstate(JanetParser *p, Janet val) {
     for (;;) {
         JanetParseState top = p->states[--p->statecount];
         JanetParseState *newtop = p->states + p->statecount - 1;
+        /* Source mapping info */
+        if (janet_checktype(val, JANET_TUPLE)) {
+            janet_tuple_sm_line(janet_unwrap_tuple(val)) = (int32_t) top.line;
+            janet_tuple_sm_column(janet_unwrap_tuple(val)) = (int32_t) top.column;
+        }
         if (newtop->flags & PFLAG_CONTAINER) {
-            /* Source mapping info */
-            if (janet_checktype(val, JANET_TUPLE)) {
-                janet_tuple_sm_line(janet_unwrap_tuple(val)) = (int32_t) top.line;
-                janet_tuple_sm_column(janet_unwrap_tuple(val)) = (int32_t) top.column;
-            }
             newtop->argn++;
             /* Keep track of number of values in the root state */
             if (p->statecount == 1) p->pending++;
@@ -790,7 +790,7 @@ static int parsermark(void *p, size_t size) {
         janet_mark(parser->args[i]);
     }
     if (parser->flag & JANET_PARSER_GENERATED_ERROR) {
-        janet_mark(janet_wrap_string(parser->error));
+        janet_mark(janet_wrap_string((const uint8_t *) parser->error));
     }
     return 0;
 }
@@ -928,7 +928,7 @@ static Janet cfun_parse_error(int32_t argc, Janet *argv) {
     const char *err = janet_parser_error(p);
     if (err) {
         return (p->flag & JANET_PARSER_GENERATED_ERROR)
-               ? janet_wrap_string(err)
+               ? janet_wrap_string((const uint8_t *) err)
                : janet_cstringv(err);
     }
     return janet_wrap_nil();
@@ -1139,7 +1139,7 @@ static const JanetReg parse_cfuns[] = {
         "parser/new", cfun_parse_parser,
         JDOC("(parser/new)\n\n"
              "Creates and returns a new parser object. Parsers are state machines "
-             "that can receive bytes, and generate a stream of janet values.")
+             "that can receive bytes, and generate a stream of values.")
     },
     {
         "parser/clone", cfun_parse_clone,

src/core/peg.c

@@ -150,6 +150,7 @@ tail:
             down1(s);
             const uint8_t *result = peg_rule(s, s->bytecode + rule[2], text);
             up1(s);
+            text -= ((int32_t *)rule)[1];
             return result ? text : NULL;
         }
 
@@ -205,6 +206,29 @@ tail:
             return (result) ? NULL : text;
         }
 
+        case RULE_THRU:
+        case RULE_TO: {
+            const uint32_t *rule_a = s->bytecode + rule[1];
+            const uint8_t *next_text;
+            CapState cs = cap_save(s);
+            down1(s);
+            while (text < s->text_end) {
+                CapState cs2 = cap_save(s);
+                next_text = peg_rule(s, rule_a, text);
+                if (next_text) {
+                    if (rule[0] == RULE_TO) cap_load(s, cs2);
+                    break;
+                }
+                text++;
+            }
+            up1(s);
+            if (text >= s->text_end) {
+                cap_load(s, cs);
+                return NULL;
+            }
+            return rule[0] == RULE_TO ? text : next_text;
+        }
+
         case RULE_BETWEEN: {
             uint32_t lo = rule[1];
             uint32_t hi = rule[2];
@@ -413,6 +437,38 @@ tail:
             return NULL;
         }
 
+        case RULE_LENPREFIX: {
+            int oldmode = s->mode;
+            s->mode = PEG_MODE_NORMAL;
+            const uint8_t *next_text;
+            CapState cs = cap_save(s);
+            down1(s);
+            next_text = peg_rule(s, s->bytecode + rule[1], text);
+            up1(s);
+            if (NULL == next_text) return NULL;
+            s->mode = oldmode;
+            int32_t num_sub_captures = s->captures->count - cs.cap;
+            Janet lencap;
+            if (num_sub_captures <= 0 ||
+                    (lencap = s->captures->data[cs.cap], !janet_checkint(lencap))) {
+                cap_load(s, cs);
+                return NULL;
+            }
+            int32_t nrep = janet_unwrap_integer(lencap);
+            /* drop captures from len pattern */
+            cap_load(s, cs);
+            for (int32_t i = 0; i < nrep; i++) {
+                down1(s);
+                next_text = peg_rule(s, s->bytecode + rule[2], next_text);
+                up1(s);
+                if (NULL == next_text) {
+                    cap_load(s, cs);
+                    return NULL;
+                }
+            }
+            return next_text;
+        }
+
     }
 }
 
@@ -657,6 +713,9 @@ static void spec_if(Builder *b, int32_t argc, const Janet *argv) {
 static void spec_ifnot(Builder *b, int32_t argc, const Janet *argv) {
     spec_branch(b, argc, argv, RULE_IFNOT);
 }
+static void spec_lenprefix(Builder *b, int32_t argc, const Janet *argv) {
+    spec_branch(b, argc, argv, RULE_LENPREFIX);
+}
 
 static void spec_between(Builder *b, int32_t argc, const Janet *argv) {
     peg_fixarity(b, argc, 3);
@@ -729,6 +788,12 @@ static void spec_error(Builder *b, int32_t argc, const Janet *argv) {
 static void spec_drop(Builder *b, int32_t argc, const Janet *argv) {
     spec_onerule(b, argc, argv, RULE_DROP);
 }
+static void spec_to(Builder *b, int32_t argc, const Janet *argv) {
+    spec_onerule(b, argc, argv, RULE_TO);
+}
+static void spec_thru(Builder *b, int32_t argc, const Janet *argv) {
+    spec_onerule(b, argc, argv, RULE_THRU);
+}
 
 /* Rule of the form [rule, tag] */
 static void spec_cap1(Builder *b, int32_t argc, const Janet *argv, uint32_t op) {
@@ -847,6 +912,7 @@ static const SpecialPair peg_specials[] = {
     {"group", spec_group},
     {"if", spec_if},
     {"if-not", spec_ifnot},
+    {"lenprefix", spec_lenprefix},
     {"look", spec_look},
     {"not", spec_not},
     {"opt", spec_opt},
@@ -858,6 +924,8 @@ static const SpecialPair peg_specials[] = {
     {"sequence", spec_sequence},
     {"set", spec_set},
     {"some", spec_some},
+    {"thru", spec_thru},
+    {"to", spec_to},
 };
 
 /* Compile a janet value into a rule and return the rule index. */
@@ -960,6 +1028,14 @@ static uint32_t peg_compile1(Builder *b, Janet peg) {
             const Janet *tup = janet_unwrap_tuple(peg);
             int32_t len = janet_tuple_length(tup);
             if (len == 0) peg_panic(b, "tuple in grammar must have non-zero length");
+            if (janet_checkint(tup[0])) {
+                int32_t n = janet_unwrap_integer(tup[0]);
+                if (n < 0) {
+                    peg_panicf(b, "expected non-negative integer, got %d", n);
+                }
+                spec_repeat(b, len, tup);
+                break;
+            }
             if (!janet_checktype(tup[0], JANET_SYMBOL))
                 peg_panicf(b, "expected grammar command, found %v", tup[0]);
             const uint8_t *sym = janet_unwrap_symbol(tup[0]);
@@ -1100,6 +1176,7 @@ static void *peg_unmarshal(JanetMarshalContext *ctx) {
             break;
             case RULE_IF:
             case RULE_IFNOT:
+            case RULE_LENPREFIX:
                 /* [rule_a, rule_b (b if not a)] */
                 if (rule[1] >= blen) goto bad;
                 if (rule[2] >= blen) goto bad;
@@ -1142,6 +1219,8 @@ static void *peg_unmarshal(JanetMarshalContext *ctx) {
             case RULE_ERROR:
             case RULE_DROP:
             case RULE_NOT:
+            case RULE_TO:
+            case RULE_THRU:
                 /* [rule] */
                 if (rule[1] >= blen) goto bad;
                 op_flags[rule[1]] |= 0x01;
@@ -1283,8 +1362,7 @@ static const JanetReg peg_cfuns[] = {
         "peg/match", cfun_peg_match,
         JDOC("(peg/match peg text &opt start & args)\n\n"
              "Match a Parsing Expression Grammar to a byte string and return an array of captured values. "
-             "Returns nil if text does not match the language defined by peg. The syntax of PEGs are very "
-             "similar to those defined by LPeg, and have similar capabilities.")
+             "Returns nil if text does not match the language defined by peg. The syntax of PEGs is documented on the Janet website.")
     },
     {NULL, NULL, NULL}
 };

src/core/pp.c

@@ -155,6 +155,9 @@ static void janet_escape_string_impl(JanetBuffer *buffer, const uint8_t *str, in
             case '\\':
                 janet_buffer_push_bytes(buffer, (const uint8_t *)"\\\\", 2);
                 break;
+            case '\t':
+                janet_buffer_push_bytes(buffer, (const uint8_t *)"\\t", 2);
+                break;
             default:
                 if (c < 32 || c > 126) {
                     uint8_t buf[4];
@@ -527,7 +530,7 @@ static void janet_pretty_one(struct pretty *S, Janet x, int is_dict_value) {
                 if (!isarray && !(S->flags & JANET_PRETTY_ONELINE) && len >= JANET_PRETTY_IND_ONELINE)
                     janet_buffer_push_u8(S->buffer, ' ');
                 if (is_dict_value && len >= JANET_PRETTY_IND_ONELINE) print_newline(S, 0);
-                if (len > JANET_PRETTY_ARRAY_LIMIT) {
+                if (len > JANET_PRETTY_ARRAY_LIMIT && !(S->flags & JANET_PRETTY_NOTRUNC)) {
                     for (i = 0; i < 3; i++) {
                         if (i) print_newline(S, 0);
                         janet_pretty_one(S, arr[i], 0);
@@ -591,7 +594,7 @@ static void janet_pretty_one(struct pretty *S, Janet x, int is_dict_value) {
                 if (is_dict_value && len >= JANET_PRETTY_DICT_ONELINE) print_newline(S, 0);
                 for (i = 0; i < cap; i++) {
                     if (!janet_checktype(kvs[i].key, JANET_NIL)) {
-                        if (counter == JANET_PRETTY_DICT_LIMIT) {
+                        if (counter == JANET_PRETTY_DICT_LIMIT && !(S->flags & JANET_PRETTY_NOTRUNC)) {
                             print_newline(S, 0);
                             janet_buffer_push_cstring(S->buffer, "...");
                             break;
@@ -751,7 +754,6 @@ void janet_formatbv(JanetBuffer *b, const char *format, va_list args) {
                 case 'd':
                 case 'i':
                 case 'o':
-                case 'u':
                 case 'x':
                 case 'X': {
                     int32_t n = va_arg(args, long);
@@ -802,6 +804,10 @@ void janet_formatbv(JanetBuffer *b, const char *format, va_list args) {
                     pushtypes(b, types);
                     break;
                 }
+                case 'M':
+                case 'm':
+                case 'N':
+                case 'n':
                 case 'Q':
                 case 'q':
                 case 'P':
@@ -809,11 +815,13 @@ void janet_formatbv(JanetBuffer *b, const char *format, va_list args) {
                     int depth = atoi(precision);
                     if (depth < 1) depth = 4;
                     char d = c[-1];
-                    int has_color = (d == 'P') || (d == 'Q');
-                    int has_oneline = (d == 'Q') || (d == 'q');
+                    int has_color = (d == 'P') || (d == 'Q') || (d == 'M') || (d == 'N');
+                    int has_oneline = (d == 'Q') || (d == 'q') || (d == 'N') || (d == 'n');
+                    int has_notrunc = (d == 'M') || (d == 'm') || (d == 'N') || (d == 'n');
                     int flags = 0;
                     flags |= has_color ? JANET_PRETTY_COLOR : 0;
                     flags |= has_oneline ? JANET_PRETTY_ONELINE : 0;
+                    flags |= has_notrunc ? JANET_PRETTY_NOTRUNC : 0;
                     janet_pretty_(b, depth, flags, va_arg(args, Janet), startlen);
                     break;
                 }
@@ -904,7 +912,6 @@ void janet_buffer_format(
                 case 'd':
                 case 'i':
                 case 'o':
-                case 'u':
                 case 'x':
                 case 'X': {
                     int32_t n = janet_getinteger(argv, arg);
@@ -946,19 +953,24 @@ void janet_buffer_format(
                     janet_description_b(b, argv[arg]);
                     break;
                 }
+                case 'M':
+                case 'm':
+                case 'N':
+                case 'n':
                 case 'Q':
                 case 'q':
                 case 'P':
                 case 'p': { /* janet pretty , precision = depth */
                     int depth = atoi(precision);
-                    if (depth < 1)
-                        depth = 4;
-                    char c = strfrmt[-1];
-                    int has_color = (c == 'P') || (c == 'Q');
-                    int has_oneline = (c == 'Q') || (c == 'q');
+                    if (depth < 1) depth = 4;
+                    char d = strfrmt[-1];
+                    int has_color = (d == 'P') || (d == 'Q') || (d == 'M') || (d == 'N');
+                    int has_oneline = (d == 'Q') || (d == 'q') || (d == 'N') || (d == 'n');
+                    int has_notrunc = (d == 'M') || (d == 'm') || (d == 'N') || (d == 'n');
                     int flags = 0;
                     flags |= has_color ? JANET_PRETTY_COLOR : 0;
                     flags |= has_oneline ? JANET_PRETTY_ONELINE : 0;
+                    flags |= has_notrunc ? JANET_PRETTY_NOTRUNC : 0;
                     janet_pretty_(b, depth, flags, argv[arg], startlen);
                     break;
                 }

src/core/regalloc.c

@@ -145,7 +145,7 @@ void janetc_regalloc_free(JanetcRegisterAllocator *ra, int32_t reg) {
 int32_t janetc_regalloc_temp(JanetcRegisterAllocator *ra, JanetcRegisterTemp nth) {
     int32_t oldmax = ra->max;
     if (ra->regtemps & (1 << nth)) {
-        janet_exit("regtemp already allocated");
+        JANET_EXIT("regtemp already allocated");
     }
     ra->regtemps |= 1 << nth;
     int32_t reg = janetc_regalloc_1(ra);

src/core/run.c

@@ -50,7 +50,7 @@ int janet_dobytes(JanetTable *env, const uint8_t *bytes, int32_t len, const char
                 JanetFiber *fiber = janet_fiber(f, 64, 0, NULL);
                 fiber->env = env;
                 JanetSignal status = janet_continue(fiber, janet_wrap_nil(), &ret);
-                if (status != JANET_SIGNAL_OK) {
+                if (status != JANET_SIGNAL_OK && status != JANET_SIGNAL_EVENT) {
                     janet_stacktrace(fiber, ret);
                     errflags |= 0x01;
                     done = 1;

src/core/specials.c

@@ -622,10 +622,11 @@ static JanetSlot janetc_while(JanetFopts opts, int32_t argn, const Janet *argv)
     /* Check if closure created in while scope. If so,
      * recompile in a function scope. */
     if (tempscope.flags & JANET_SCOPE_CLOSURE) {
+        subopts = janetc_fopts_default(c);
         tempscope.flags |= JANET_SCOPE_UNUSED;
         janetc_popscope(c);
-        janet_v__cnt(c->buffer) = labelwt;
-        janet_v__cnt(c->mapbuffer) = labelwt;
+        if (c->buffer) janet_v__cnt(c->buffer) = labelwt;
+        if (c->mapbuffer) janet_v__cnt(c->mapbuffer) = labelwt;
 
         janetc_scope(&tempscope, c, JANET_SCOPE_FUNCTION, "while-iife");
 

src/core/state.h

@@ -43,6 +43,7 @@ extern JANET_THREAD_LOCAL int janet_vm_stackn;
 /* The current running fiber on the current thread.
  * Set and unset by janet_run. */
 extern JANET_THREAD_LOCAL JanetFiber *janet_vm_fiber;
+extern JANET_THREAD_LOCAL JanetFiber *janet_vm_root_fiber;
 
 /* The current pointer to the inner most jmp_buf. The current
  * return point for panics. */

src/core/string.c

@@ -542,7 +542,7 @@ static const JanetReg string_cfuns[] = {
     {
         "string/from-bytes", cfun_string_frombytes,
         JDOC("(string/from-bytes & byte-vals)\n\n"
-             "Creates a string from integer params with byte values. All integers "
+             "Creates a string from integer parameters with byte values. All integers "
              "will be coerced to the range of 1 byte 0-255.")
     },
     {
@@ -573,7 +573,7 @@ static const JanetReg string_cfuns[] = {
     },
     {
         "string/find-all", cfun_string_findall,
-        JDOC("(string/find patt str)\n\n"
+        JDOC("(string/find-all patt str)\n\n"
              "Searches for all instances of pattern patt in string "
              "str. Returns an array of all indices of found patterns. Overlapping "
              "instances of the pattern are not counted, meaning a byte in string "
@@ -627,7 +627,7 @@ static const JanetReg string_cfuns[] = {
     {
         "string/format", cfun_string_format,
         JDOC("(string/format format & values)\n\n"
-             "Similar to snprintf, but specialized for operating with janet. Returns "
+             "Similar to snprintf, but specialized for operating with Janet values. Returns "
              "a new string.")
     },
     {

src/core/thread.c

@@ -66,9 +66,15 @@ struct JanetMailbox {
     JanetBuffer messages[];
 };
 
+#define JANET_THREAD_HEAVYWEIGHT 0x1
+#define JANET_THREAD_ABSTRACTS 0x2
+#define JANET_THREAD_CFUNCTIONS 0x4
+static const char janet_thread_flags[] = "hac";
+
 typedef struct {
     JanetMailbox *original;
     JanetMailbox *newbox;
+    uint64_t flags;
 } JanetMailboxPair;
 
 static JANET_THREAD_LOCAL JanetMailbox *janet_vm_mailbox = NULL;
@@ -175,7 +181,7 @@ static int thread_mark(void *p, size_t size) {
     return 0;
 }
 
-static JanetMailboxPair *make_mailbox_pair(JanetMailbox *original) {
+static JanetMailboxPair *make_mailbox_pair(JanetMailbox *original, uint64_t flags) {
     JanetMailboxPair *pair = malloc(sizeof(JanetMailboxPair));
     if (NULL == pair) {
         JANET_OUT_OF_MEMORY;
@@ -183,6 +189,7 @@ static JanetMailboxPair *make_mailbox_pair(JanetMailbox *original) {
     pair->original = original;
     janet_mailbox_ref(original, 1);
     pair->newbox = janet_mailbox_create(1, 16);
+    pair->flags = flags;
     return pair;
 }
 
@@ -442,16 +449,44 @@ static int thread_worker(JanetMailboxPair *pair) {
     janet_init();
 
     /* Get dictionaries for default encode/decode */
-    JanetTable *encode = janet_get_core_table("make-image-dict");
+    JanetTable *encode;
+    if (pair->flags & JANET_THREAD_HEAVYWEIGHT) {
+        encode = janet_get_core_table("make-image-dict");
+    } else {
+        encode = NULL;
+        janet_vm_thread_decode = janet_table(0);
+        janet_gcroot(janet_wrap_table(janet_vm_thread_decode));
+    }
 
     /* Create parent thread */
     JanetThread *parent = janet_make_thread(pair->original, encode);
     Janet parentv = janet_wrap_abstract(parent);
 
+    /* Unmarshal the abstract registry */
+    if (pair->flags & JANET_THREAD_ABSTRACTS) {
+        Janet reg;
+        int status = janet_thread_receive(&reg, INFINITY);
+        if (status) goto error;
+        if (!janet_checktype(reg, JANET_TABLE)) goto error;
+        janet_gcunroot(janet_wrap_table(janet_vm_abstract_registry));
+        janet_vm_abstract_registry = janet_unwrap_table(reg);
+        janet_gcroot(janet_wrap_table(janet_vm_abstract_registry));
+    }
+
+    /* Unmarshal the normal registry */
+    if (pair->flags & JANET_THREAD_CFUNCTIONS) {
+        Janet reg;
+        int status = janet_thread_receive(&reg, INFINITY);
+        if (status) goto error;
+        if (!janet_checktype(reg, JANET_TABLE)) goto error;
+        janet_gcunroot(janet_wrap_table(janet_vm_registry));
+        janet_vm_registry = janet_unwrap_table(reg);
+        janet_gcroot(janet_wrap_table(janet_vm_registry));
+    }
+
     /* Unmarshal the function */
     Janet funcv;
     int status = janet_thread_receive(&funcv, INFINITY);
-
     if (status) goto error;
     if (!janet_checktype(funcv, JANET_FUNCTION)) goto error;
     JanetFunction *func = janet_unwrap_function(funcv);
@@ -465,11 +500,15 @@ static int thread_worker(JanetMailboxPair *pair) {
     Janet argv[1] = { parentv };
     fiber = janet_fiber(func, 64, 1, argv);
     JanetSignal sig = janet_continue(fiber, janet_wrap_nil(), &out);
-    if (sig != JANET_SIGNAL_OK) {
+    if (sig != JANET_SIGNAL_OK && sig < JANET_SIGNAL_USER0) {
         janet_eprintf("in thread %v: ", janet_wrap_abstract(janet_make_thread(pair->newbox, encode)));
         janet_stacktrace(fiber, out);
     }
 
+#ifdef JANET_NET
+    janet_loop();
+#endif
+
     /* Normal exit */
     destroy_mailbox_pair(pair);
     janet_deinit();
@@ -554,22 +593,40 @@ static Janet cfun_thread_current(int32_t argc, Janet *argv) {
 }
 
 static Janet cfun_thread_new(int32_t argc, Janet *argv) {
-    janet_arity(argc, 1, 2);
+    janet_arity(argc, 1, 3);
     /* Just type checking */
     janet_getfunction(argv, 0);
     int32_t cap = janet_optinteger(argv, argc, 1, 10);
     if (cap < 1 || cap > UINT16_MAX) {
         janet_panicf("bad slot #1, expected integer in range [1, 65535], got %d", cap);
     }
-    JanetTable *encode = janet_get_core_table("make-image-dict");
+    uint64_t flags = argc >= 3 ? janet_getflags(argv, 2, janet_thread_flags) : JANET_THREAD_ABSTRACTS;
+    JanetTable *encode;
+    if (flags & JANET_THREAD_HEAVYWEIGHT) {
+        encode = janet_get_core_table("make-image-dict");
+    } else {
+        encode = NULL;
+    }
 
-    JanetMailboxPair *pair = make_mailbox_pair(janet_vm_mailbox);
+    JanetMailboxPair *pair = make_mailbox_pair(janet_vm_mailbox, flags);
     JanetThread *thread = janet_make_thread(pair->newbox, encode);
     if (janet_thread_start_child(pair)) {
         destroy_mailbox_pair(pair);
         janet_panic("could not start thread");
     }
 
+    if (flags & JANET_THREAD_ABSTRACTS) {
+        if (janet_thread_send(thread, janet_wrap_table(janet_vm_abstract_registry), INFINITY)) {
+            janet_panic("could not send abstract registry to thread");
+        }
+    }
+
+    if (flags & JANET_THREAD_CFUNCTIONS) {
+        if (janet_thread_send(thread, janet_wrap_table(janet_vm_registry), INFINITY)) {
+            janet_panic("could not send registry to thread");
+        }
+    }
+
     /* If thread started, send the worker function. */
     if (janet_thread_send(thread, argv[0], INFINITY)) {
         janet_panicf("could not send worker function %v to thread", argv[0]);
@@ -634,10 +691,14 @@ static const JanetReg threadlib_cfuns[] = {
     },
     {
         "thread/new", cfun_thread_new,
-        JDOC("(thread/new func &opt capacity)\n\n"
+        JDOC("(thread/new func &opt capacity flags)\n\n"
              "Start a new thread that will start immediately. "
              "If capacity is provided, that is how many messages can be stored in the thread's mailbox before blocking senders. "
              "The capacity must be between 1 and 65535 inclusive, and defaults to 10. "
+             "Can optionally provide flags to the new thread - supported flags are:\n"
+             "\t:h - Start a heavyweight thread. This loads the core environment by default, so may use more memory initially. Messages may compress better, though.\n"
+             "\t:a - Allow sending over registered abstract types to the new thread\n"
+             "\t:c - Send over cfunction information to the new thread.\n"
              "Returns a handle to the new thread.")
     },
     {

src/core/typedarray.c

@@ -275,6 +275,24 @@ static void ta_setter(void *p, Janet key, Janet value) {
     }
 }
 
+static Janet ta_view_next(void *p, Janet key) {
+    JanetTArrayView *view = p;
+    if (janet_checktype(key, JANET_NIL)) {
+        if (view->size > 0) {
+            return janet_wrap_number(0);
+        } else {
+            return janet_wrap_nil();
+        }
+    }
+    if (!janet_checksize(key)) janet_panic("expected size as key");
+    size_t index = (size_t) janet_unwrap_number(key);
+    index++;
+    if (index < view->size) {
+        return janet_wrap_number((double) index);
+    }
+    return janet_wrap_nil();
+}
+
 const JanetAbstractType janet_ta_view_type = {
     "ta/view",
     NULL,
@@ -283,7 +301,11 @@ const JanetAbstractType janet_ta_view_type = {
     ta_setter,
     ta_view_marshal,
     ta_view_unmarshal,
-    JANET_ATEND_UNMARSHAL
+    NULL,
+    NULL,
+    NULL,
+    ta_view_next,
+    JANET_ATEND_NEXT
 };
 
 JanetTArrayBuffer *janet_tarray_buffer(size_t size) {
@@ -364,8 +386,11 @@ static Janet cfun_typed_array_new(int32_t argc, Janet *argv) {
             offset = (view->buffer->data - view->as.u8) + offset * ta_type_sizes[view->type];
             stride *= view->stride;
             buffer = view->buffer;
-        } else {
+        } else if (janet_abstract_type(p) == &janet_ta_buffer_type) {
             buffer = p;
+        } else {
+            janet_panicf("bad slot #%d, expected ta/view|ta/buffer, got %v",
+                         4, argv[4]);
         }
     }
     JanetTArrayView *view = janet_tarray_view(type, size, stride, offset, buffer);

src/core/util.h

@@ -32,10 +32,10 @@
 #include <errno.h>
 
 /* Handle runtime errors */
-#ifndef janet_exit
+#ifndef JANET_EXIT
 #include <stdio.h>
-#define janet_exit(m) do { \
-    printf("C runtime error at line %d in file %s: %s\n",\
+#define JANET_EXIT(m) do { \
+    fprintf(stderr, "C runtime error at line %d in file %s: %s\n",\
         __LINE__,\
         __FILE__,\
         (m));\
@@ -44,13 +44,13 @@
 #endif
 
 #define janet_assert(c, m) do { \
-    if (!(c)) janet_exit((m)); \
+    if (!(c)) JANET_EXIT((m)); \
 } while (0)
 
 /* What to do when out of memory */
 #ifndef JANET_OUT_OF_MEMORY
 #include <stdio.h>
-#define JANET_OUT_OF_MEMORY do { printf("janet out of memory\n"); exit(1); } while (0)
+#define JANET_OUT_OF_MEMORY do { fprintf(stderr, "janet out of memory\n"); exit(1); } while (0)
 #endif
 
 /* Omit docstrings in some builds */
@@ -126,5 +126,10 @@ void janet_lib_inttypes(JanetTable *env);
 #ifdef JANET_THREADS
 void janet_lib_thread(JanetTable *env);
 #endif
+#ifdef JANET_NET
+void janet_lib_net(JanetTable *env);
+void janet_net_deinit(void);
+void janet_net_markloop(void);
+#endif
 
 #endif

src/core/vm.c

@@ -38,6 +38,7 @@ JANET_THREAD_LOCAL JanetTable *janet_vm_registry;
 JANET_THREAD_LOCAL JanetTable *janet_vm_abstract_registry;
 JANET_THREAD_LOCAL int janet_vm_stackn = 0;
 JANET_THREAD_LOCAL JanetFiber *janet_vm_fiber = NULL;
+JANET_THREAD_LOCAL JanetFiber *janet_vm_root_fiber = NULL;
 JANET_THREAD_LOCAL Janet *janet_vm_return_reg = NULL;
 JANET_THREAD_LOCAL jmp_buf *janet_vm_jmp_buf = NULL;
 
@@ -928,7 +929,7 @@ static JanetSignal run_vm(JanetFiber *fiber, Janet in) {
         if (janet_checktype(callee, JANET_FUNCTION)) {
             func = janet_unwrap_function(callee);
             if (func->gc.flags & JANET_FUNCFLAG_TRACE) {
-                vm_do_trace(func, fiber->stacktop - fiber->stackstart, stack);
+                vm_do_trace(func, fiber->stacktop - fiber->stackstart, fiber->data + fiber->stackstart);
             }
             janet_stack_frame(stack)->pc = pc;
             if (janet_fiber_funcframe(fiber, func)) {
@@ -967,7 +968,7 @@ static JanetSignal run_vm(JanetFiber *fiber, Janet in) {
         if (janet_checktype(callee, JANET_FUNCTION)) {
             func = janet_unwrap_function(callee);
             if (func->gc.flags & JANET_FUNCFLAG_TRACE) {
-                vm_do_trace(func, fiber->stacktop - fiber->stackstart, stack);
+                vm_do_trace(func, fiber->stacktop - fiber->stackstart, fiber->data + fiber->stackstart);
             }
             if (janet_fiber_funcframe_tail(fiber, func)) {
                 janet_stack_frame(fiber->data + fiber->frame)->pc = pc;
@@ -1244,7 +1245,9 @@ Janet janet_call(JanetFunction *fun, int32_t argc, const Janet *argv) {
     janet_vm_stackn = oldn;
     janet_gcunlock(handle);
 
-    if (signal != JANET_SIGNAL_OK) janet_panicv(*janet_vm_return_reg);
+    if (signal != JANET_SIGNAL_OK) {
+        janet_panicv(*janet_vm_return_reg);
+    }
 
     return *janet_vm_return_reg;
 }
@@ -1276,10 +1279,12 @@ static JanetSignal janet_continue_no_check(JanetFiber *fiber, Janet in, Janet *o
 
     /* Continue child fiber if it exists */
     if (fiber->child) {
+        if (janet_vm_root_fiber == NULL) janet_vm_root_fiber = fiber;
         JanetFiber *child = fiber->child;
         janet_vm_stackn++;
         JanetSignal sig = janet_continue(child, in, &in);
         janet_vm_stackn--;
+        if (janet_vm_root_fiber == fiber) janet_vm_root_fiber = NULL;
         if (sig != JANET_SIGNAL_OK && !(child->flags & (1 << sig))) {
             *out = in;
             return sig;
@@ -1308,6 +1313,7 @@ static JanetSignal janet_continue_no_check(JanetFiber *fiber, Janet in, Janet *o
     Janet *old_vm_return_reg = janet_vm_return_reg;
 
     /* Setup fiber */
+    if (janet_vm_root_fiber == NULL) janet_vm_root_fiber = fiber;
     janet_vm_fiber = fiber;
     janet_gcroot(janet_wrap_fiber(fiber));
     janet_fiber_set_status(fiber, JANET_STATUS_ALIVE);
@@ -1333,6 +1339,7 @@ static JanetSignal janet_continue_no_check(JanetFiber *fiber, Janet in, Janet *o
     janet_gcunroot(janet_wrap_fiber(fiber));
 
     /* Restore global state */
+    if (janet_vm_root_fiber == fiber) janet_vm_root_fiber = NULL;
     janet_vm_gc_suspend = handle;
     janet_vm_fiber = old_vm_fiber;
     janet_vm_stackn = oldn;
@@ -1414,6 +1421,10 @@ int janet_init(void) {
     janet_vm_core_env = NULL;
     /* Seed RNG */
     janet_rng_seed(janet_default_rng(), 0);
+    /* Fibers */
+    janet_vm_fiber = NULL;
+    janet_vm_root_fiber = NULL;
+    janet_vm_stackn = 0;
     /* Threads */
 #ifdef JANET_THREADS
     janet_threads_init();
@@ -1433,7 +1444,12 @@ void janet_deinit(void) {
     janet_vm_abstract_registry = NULL;
     janet_vm_core_env = NULL;
     free(janet_vm_traversal_base);
+    janet_vm_fiber = NULL;
+    janet_vm_root_fiber = NULL;
 #ifdef JANET_THREADS
     janet_threads_deinit();
 #endif
+#ifdef JANET_NET
+    janet_net_deinit();
+#endif
 }

src/include/janet.h

@@ -27,6 +27,12 @@
 extern "C" {
 #endif
 
+/* Variable length arrays are ok */
+#ifdef _MSC_VER
+#pragma warning( push )
+#pragma warning( disable : 4200 )
+#endif
+
 /***** START SECTION CONFIG *****/
 
 #include "janetconf.h"
@@ -124,6 +130,12 @@ extern "C" {
 /* Check emscripten */
 #ifdef __EMSCRIPTEN__
 #define JANET_NO_DYNAMIC_MODULES
+#define JANET_NO_PROCESSES
+#endif
+
+/* Check sun */
+#ifdef __sun
+#define JANET_NO_UTC_MKTIME
 #endif
 
 /* Define how global janet state is declared */
@@ -159,6 +171,11 @@ extern "C" {
 #define JANET_TYPED_ARRAY
 #endif
 
+/* Enable or disable networking */
+#if !defined(JANET_NO_NET) && !defined(__EMSCRIPTEN__)
+#define JANET_NET
+#endif
+
 /* Enable or disable large int types (for now 64 bit, maybe 128 / 256 bit integer types) */
 #ifndef JANET_NO_INT_TYPES
 #define JANET_INT_TYPES
@@ -289,6 +306,8 @@ typedef enum {
     JANET_SIGNAL_USER9
 } JanetSignal;
 
+#define JANET_SIGNAL_EVENT JANET_SIGNAL_USER9
+
 /* Fiber statuses - mostly corresponds to signals. */
 typedef enum {
     JANET_STATUS_DEAD,
@@ -309,14 +328,6 @@ typedef enum {
     JANET_STATUS_ALIVE
 } JanetFiberStatus;
 
-#ifdef JANET_NANBOX_64
-typedef union Janet Janet;
-#elif defined(JANET_NANBOX_32)
-typedef union Janet Janet;
-#else
-typedef struct Janet Janet;
-#endif
-
 /* Use type punning for GC objects */
 typedef struct JanetGCObject JanetGCObject;
 
@@ -347,15 +358,6 @@ typedef struct JanetByteView JanetByteView;
 typedef struct JanetDictView JanetDictView;
 typedef struct JanetRange JanetRange;
 typedef struct JanetRNG JanetRNG;
-typedef Janet(*JanetCFunction)(int32_t argc, Janet *argv);
-
-/* String and other aliased pointer types */
-typedef const uint8_t *JanetString;
-typedef const uint8_t *JanetSymbol;
-typedef const uint8_t *JanetKeyword;
-typedef const Janet *JanetTuple;
-typedef const JanetKV *JanetStruct;
-typedef void *JanetAbstract;
 
 /* Basic types for all Janet Values */
 typedef enum JanetType {
@@ -377,6 +379,61 @@ typedef enum JanetType {
     JANET_POINTER
 } JanetType;
 
+/* Recursive type (Janet) */
+#ifdef JANET_NANBOX_64
+typedef union Janet Janet;
+union Janet {
+    uint64_t u64;
+    int64_t i64;
+    double number;
+    void *pointer;
+};
+#elif defined(JANET_NANBOX_32)
+typedef union Janet Janet;
+union Janet {
+    struct {
+#ifdef JANET_BIG_ENDIAN
+        uint32_t type;
+        union {
+            int32_t integer;
+            void *pointer;
+        } payload;
+#else
+        union {
+            int32_t integer;
+            void *pointer;
+        } payload;
+        uint32_t type;
+#endif
+    } tagged;
+    double number;
+    uint64_t u64;
+};
+#else
+typedef struct Janet Janet;
+struct Janet {
+    union {
+        uint64_t u64;
+        double number;
+        int32_t integer;
+        void *pointer;
+        const void *cpointer;
+    } as;
+    JanetType type;
+};
+#endif
+
+/* C functions */
+typedef Janet(*JanetCFunction)(int32_t argc, Janet *argv);
+
+/* String and other aliased pointer types */
+typedef const uint8_t *JanetString;
+typedef const uint8_t *JanetSymbol;
+typedef const uint8_t *JanetKeyword;
+typedef const Janet *JanetTuple;
+typedef const JanetKV *JanetStruct;
+typedef void *JanetAbstract;
+
 #define JANET_COUNT_TYPES (JANET_POINTER + 1)
 
 /* Type flags */
@@ -485,13 +542,6 @@ JANET_API Janet janet_wrap_integer(int32_t x);
 
 #include <math.h>
 
-/* 64 Nanboxed Janet value */
-union Janet {
-    uint64_t u64;
-    int64_t i64;
-    double number;
-    void *pointer;
-};
 #define janet_u64(x) ((x).u64)
 
 #define JANET_NANBOX_TAGBITS     0xFFFF800000000000llu
@@ -576,27 +626,6 @@ JANET_API Janet janet_nanbox_from_bits(uint64_t bits);
 
 #elif defined(JANET_NANBOX_32)
 
-/* 32 bit nanboxed janet */
-union Janet {
-    struct {
-#ifdef JANET_BIG_ENDIAN
-        uint32_t type;
-        union {
-            int32_t integer;
-            void *pointer;
-        } payload;
-#else
-        union {
-            int32_t integer;
-            void *pointer;
-        } payload;
-        uint32_t type;
-#endif
-    } tagged;
-    double number;
-    uint64_t u64;
-};
-
 #define JANET_DOUBLE_OFFSET 0xFFFF
 
 #define janet_u64(x) ((x).u64)
@@ -647,18 +676,6 @@ JANET_API Janet janet_nanbox32_from_tagp(uint32_t tag, void *pointer);
 
 #else
 
-/* A general janet value type for more standard C */
-struct Janet {
-    union {
-        uint64_t u64;
-        double number;
-        int32_t integer;
-        void *pointer;
-        const void *cpointer;
-    } as;
-    JanetType type;
-};
-
 #define janet_u64(x) ((x).as.u64)
 #define janet_type(x) ((x).type)
 #define janet_checktype(x, t) ((x).type == (t))
@@ -1111,6 +1128,11 @@ extern enum JanetInstructionType janet_instructions[JOP_INSTRUCTION_COUNT];
 
 /***** START SECTION MAIN *****/
 
+/* Event Loop */
+#ifdef JANET_NET
+JANET_API void janet_loop(void);
+#endif
+
 /* Parsing */
 extern JANET_API const JanetAbstractType janet_parser_type;
 JANET_API void janet_parser_init(JanetParser *parser);
@@ -1286,6 +1308,7 @@ JANET_API JanetFiber *janet_fiber(JanetFunction *callee, int32_t capacity, int32
 JANET_API JanetFiber *janet_fiber_reset(JanetFiber *fiber, JanetFunction *callee, int32_t argc, const Janet *argv);
 JANET_API JanetFiberStatus janet_fiber_status(JanetFiber *fiber);
 JANET_API JanetFiber *janet_current_fiber(void);
+JANET_API JanetFiber *janet_root_fiber(void);
 
 /* Treat similar types through uniform interfaces for iteration */
 JANET_API int janet_indexed_view(Janet seq, const Janet **data, int32_t *len);
@@ -1345,6 +1368,7 @@ JANET_API int janet_verify(JanetFuncDef *def);
 /* Pretty printing */
 #define JANET_PRETTY_COLOR 1
 #define JANET_PRETTY_ONELINE 2
+#define JANET_PRETTY_NOTRUNC 4
 JANET_API JanetBuffer *janet_pretty(JanetBuffer *buffer, int depth, int flags, Janet x);
 
 /* Misc */
@@ -1558,6 +1582,9 @@ typedef enum {
     RULE_ERROR,        /* [rule] */
     RULE_DROP,         /* [rule] */
     RULE_BACKMATCH,    /* [tag] */
+    RULE_TO,           /* [rule] */
+    RULE_THRU,         /* [rule] */
+    RULE_LENPREFIX,    /* [rule_a, rule_b (repeat rule_b rule_a times)] */
 } JanetPegOpcode;
 
 typedef struct {
@@ -1654,6 +1681,11 @@ JANET_API int janet_thread_send(JanetThread *thread, Janet msg, double timeout);
 
 /***** END SECTION MAIN *****/
 
+/* Re-enable popped variable length array warnings */
+#ifdef _MSC_VER
+#pragma warning( pop )
+#endif
+
 #ifdef __cplusplus
 }
 #endif

src/mainclient/shell.c

@@ -40,6 +40,8 @@ void janet_line_deinit();
 void janet_line_get(const char *p, JanetBuffer *buffer);
 Janet janet_line_getter(int32_t argc, Janet *argv);
 
+static JANET_THREAD_LOCAL int gbl_cancel_current_repl_form = 0;
+
 /*
  * Line Editing
  */
@@ -54,7 +56,17 @@ Janet janet_line_getter(int32_t argc, Janet *argv) {
     gbl_complete_env = (argc >= 3) ? janet_gettable(argv, 2) : NULL;
     janet_line_get(str, buf);
     gbl_complete_env = NULL;
-    return janet_wrap_buffer(buf);
+
+    Janet result;
+    if (gbl_cancel_current_repl_form) {
+        gbl_cancel_current_repl_form = 0;
+
+        /* Signal that the user bailed out of the current form */
+        result = janet_ckeywordv("cancel");
+    } else {
+        result = janet_wrap_buffer(buf);
+    }
+    return result;
 }
 
 static void simpleline(JanetBuffer *buffer) {
@@ -746,8 +758,7 @@ static int line() {
                 kleft();
                 break;
             case 3:     /* ctrl-c */
-                errno = EAGAIN;
-                gbl_sigint_flag = 1;
+                gbl_cancel_current_repl_form = 1;
                 clearlines();
                 return -1;
             case 4:     /* ctrl-d, eof */
@@ -1011,10 +1022,15 @@ int main(int argc, char **argv) {
     JanetFiber *fiber = janet_fiber(janet_unwrap_function(mainfun), 64, 1, mainargs);
     fiber->env = env;
     status = janet_continue(fiber, janet_wrap_nil(), &out);
-    if (status != JANET_SIGNAL_OK) {
+    if (status != JANET_SIGNAL_OK && status != JANET_SIGNAL_EVENT) {
         janet_stacktrace(fiber, out);
     }
 
+#ifdef JANET_NET
+    status = JANET_SIGNAL_OK;
+    janet_loop();
+#endif
+
     /* Deinitialize vm */
     janet_deinit();
     janet_line_deinit();

test/install/.gitignore

@@ -1,4 +1,5 @@
 /build
+/modpath
 .cache
 .manifests
 json.*

test/suite0.janet

@@ -334,5 +334,86 @@
 (assert (deep= @{:a 3 :b 2} @{:a 1 :b 2 :a 3}) "table literal duplicate keys")
 (assert (deep= @{:a 3 :b 2} (table :a 1 :b 2 :a 3)) "table constructor duplicate keys")
 
+## Polymorphic comparison -- Issue #272
+
+# confirm polymorphic comparison delegation to primitive comparators:
+(assert (= 0 (compare-primitive 3 3)) "compare-primitive integers (1)")
+(assert (= -1 (compare-primitive 3 5)) "compare-primitive integers (2)")
+(assert (= 1 (compare-primitive "foo" "bar")) "compare-primitive strings")
+(assert (= 0 (compare 1 1)) "compare integers (1)")
+(assert (= -1 (compare 1 2)) "compare integers (2)")
+(assert (= 1 (compare "foo" "bar")) "compare strings (1)")
+
+(assert (compare< 1 2 3 4 5 6) "compare less than integers")
+(assert (not (compare> 1 2 3 4 5 6)) "compare not greater than integers")
+(assert (compare< 1.0 2.0 3.0 4.0 5.0 6.0) "compare less than reals")
+(assert (compare> 6 5 4 3 2 1) "compare greater than integers")
+(assert (compare> 6.0 5.0 4.0 3.0 2.0 1.0) "compare greater than reals")
+(assert (not (compare< 6.0 5.0 4.0 3.0 2.0 1.0)) "compare less than reals")
+(assert (compare<= 1 2 3 3 4 5 6) "compare less than or equal to integers")
+(assert (compare<= 1.0 2.0 3.0 3.0 4.0 5.0 6.0) "compare less than or equal to reals")
+(assert (compare>= 6 5 4 4 3 2 1) "compare greater than or equal to integers")
+(assert (compare>= 6.0 5.0 4.0 4.0 3.0 2.0 1.0) "compare greater than or equal to reals")
+(assert (compare< 1.0 nil false true
+           (fiber/new (fn [] 1))
+           "hi"
+           (quote hello)
+           :hello
+           (array 1 2 3)
+           (tuple 1 2 3)
+           (table "a" "b" "c" "d")
+           (struct 1 2 3 4)
+           (buffer "hi")
+           (fn [x] (+ x x))
+           print) "compare type ordering")
+
+# test polymorphic compare with 'objects' (table/setproto)
+(def mynum
+  @{:type :mynum :v 0 :compare
+    (fn [self other]
+      (case (type other)
+      :number (compare-primitive (self :v) other)
+      :table (when (= (get other :type) :mynum)
+               (compare-primitive (self :v) (other :v)))))})
+
+(let [n3 (table/setproto @{:v 3} mynum)]
+  (assert (= 0 (compare 3 n3)) "compare num to object (1)")
+  (assert (= -1 (compare n3 4)) "compare object to num (2)")
+  (assert (= 1 (compare (table/setproto @{:v 4} mynum) n3)) "compare object to object")
+  (assert (compare< 2 n3 4) "compare< poly")
+  (assert (compare> 4 n3 2) "compare> poly")
+  (assert (compare<= 2 3 n3 4) "compare<= poly")
+  (assert (compare= 3 n3 (table/setproto @{:v 3} mynum)) "compare= poly")
+  (assert (deep= (sorted @[4 5 n3 2] compare<) @[2 n3 4 5]) "polymorphic sort"))
+
+(let [
+      MAX_INT_64_STRING "9223372036854775807"
+      MAX_UINT_64_STRING "18446744073709551615"
+      MAX_INT_IN_DBL_STRING "9007199254740991"
+      NAN (math/log -1)
+      INF (/ 1 0)
+      MINUS_INF (/ -1 0)
+
+      compare-poly-tests
+      [
+       [(int/s64 3) (int/u64 3) 0]
+       [(int/s64 -3) (int/u64 3) -1]
+       [(int/s64 3) (int/u64 2) 1] 
+       [(int/s64 3) 3 0] [(int/s64 3) 4 -1] [(int/s64 3) -9 1]
+       [(int/u64 3) 3 0] [(int/u64 3) 4 -1] [(int/u64 3) -9 1]
+       [3 (int/s64 3) 0] [3 (int/s64 4) -1] [3 (int/s64 -5) 1]
+       [3 (int/u64 3) 0] [3 (int/u64 4) -1] [3 (int/u64 2) 1]
+       [(int/s64 MAX_INT_64_STRING) (int/u64 MAX_UINT_64_STRING) -1]
+       [(int/s64 MAX_INT_IN_DBL_STRING) (scan-number MAX_INT_IN_DBL_STRING) 0]
+       [(int/u64 MAX_INT_IN_DBL_STRING) (scan-number MAX_INT_IN_DBL_STRING) 0]
+       [(+ 1 (int/u64 MAX_INT_IN_DBL_STRING)) (scan-number MAX_INT_IN_DBL_STRING) 1]
+       [(int/s64 0) INF -1] [(int/u64 0) INF -1]
+       [MINUS_INF (int/u64 0) -1] [MINUS_INF (int/s64 0) -1] 
+       [(int/s64 1) NAN 0] [NAN (int/u64 1) 0]
+       ]]
+  (each [x y c] compare-poly-tests
+    (assert (= c (compare x y)) (string/format "compare polymorphic %q %q %d" x y c)))
+  )
+
 (end-suite)
 

test/suite3.janet

@@ -91,8 +91,8 @@
 # Assembly test
 # Fibonacci sequence, implemented with naive recursion.
 (def fibasm (asm '{
-  arity 1
-  bytecode [
+  :arity 1
+  :bytecode [
     (ltim 1 0 0x2)      # $1 = $0 < 2
     (jmpif 1 :done)     # if ($1) goto :done
     (lds 1)             # $1 = self

test/suite5.janet

@@ -58,6 +58,17 @@
 
 (assert (= ((unmarshal (marshal b)) 3) (b 3)) "marshal")
 
+# Issue 408
+(assert-error :invalid-type (tarray/new :int32 10 1 0 (int/u64 7)) "tarray/new should only allow tarray or buffer for last argument")
+(def ta (tarray/new :int32 10))
+(assert (= (next a nil) 0) "tarray next 1")
+(assert (= (next a 0) 1) "tarray next 2")
+(assert (= (next a 8) 9) "tarray next 3")
+(assert (nil? (next a 9)) "tarray next 4")
+(put ta 3 7)
+(put ta 9 7)
+(assert (= 2 (count |(= $ 7) ta)) "tarray count")
+
 # Array remove
 
 (assert (deep= (array/remove @[1 2 3 4 5] 2) @[1 2 4 5]) "array/remove 1")

test/suite7.janet

@@ -23,7 +23,6 @@
 
 # Using a large test grammar
 
-(def- core-env (table/getproto (fiber/getenv (fiber/current))))
 (def- specials {'fn true
                'var true
                'do true
@@ -41,7 +40,7 @@
 (defn capture-sym
   [text]
   (def sym (symbol text))
-  [(if (or (core-env sym) (specials sym)) :coresym :symbol) text])
+  [(if (or (root-env sym) (specials sym)) :coresym :symbol) text])
 
 (def grammar
   ~{:ws (set " \v\t\r\f\n\0")

test/suite8.janet

@@ -252,4 +252,59 @@ neldb\0\0\0\xD8\x05printG\x01\0\xDE\xDE\xDE'\x03\0marshal_tes/\x02
 (assert (< [1 2 3] [1 2 3 -1]) "tuple comparison 5")
 (assert (> [1 2 3] [1 2]) "tuple comparison 6")
 
+# Lenprefix rule
+
+(def peg (peg/compile ~(* (lenprefix (/ (* '(any (if-not ":" 1)) ":") ,scan-number) 1) -1)))
+
+(assert (peg/match peg "5:abcde") "lenprefix 1")
+(assert (not (peg/match peg "5:abcdef")) "lenprefix 2")
+(assert (not (peg/match peg "5:abcd")) "lenprefix 3")
+
+# Packet capture
+
+(def peg2
+  (peg/compile
+    ~{# capture packet length in tag :header-len
+      :packet-header (* (/ ':d+ ,scan-number :header-len) ":")
+
+      # capture n bytes from a backref :header-len
+      :packet-body '(lenprefix (-> :header-len) 1)
+
+      # header, followed by body, and drop the :header-len capture
+      :packet (/ (* :packet-header :packet-body) ,|$1) 
+
+      # any exact seqence of packets (no extra characters)
+      :main (* (any :packet) -1)}))
+
+(assert (deep= @["a" "bb" "ccc"] (peg/match peg2 "1:a2:bb3:ccc")) "lenprefix 4")
+(assert (deep= @["a" "bb" "cccccc"] (peg/match peg2 "1:a2:bb6:cccccc")) "lenprefix 5")
+(assert (= nil (peg/match peg2 "1:a2:bb:5:cccccc")) "lenprefix 6")
+(assert (= nil (peg/match peg2 "1:a2:bb:7:cccccc")) "lenprefix 7")
+
+# Regression #400
+(assert (= nil (while (and false false) (fn []) (error "should not happen"))) "strangeloop 1")
+(assert (= nil (while (not= nil nil) (fn []) (error "should not happen"))) "strangeloop 2")
+
+# Issue #412
+(assert (peg/match '(* "a" (> -1 "a") "b") "abc") "lookhead does not move cursor")
+
+(def peg3
+  ~{:main (* "(" (thru ")"))})
+
+(def peg4 (peg/compile ~(* (thru "(") '(to ")"))))
+
+(assert (peg/match peg3 "(12345)") "peg thru 1")
+(assert (not (peg/match peg3 " (12345)")) "peg thru 2")
+(assert (not (peg/match peg3 "(12345")) "peg thru 3")
+
+(assert (= "abc" (0 (peg/match peg4 "123(abc)"))) "peg thru/to 1")
+(assert (= "abc" (0 (peg/match peg4 "(abc)"))) "peg thru/to 2")
+(assert (not (peg/match peg4 "123(abc")) "peg thru/to 3")
+
+(def peg5 (peg/compile [3 "abc"]))
+
+(assert (:match peg5 "abcabcabc") "repeat alias 1")
+(assert (:match peg5 "abcabcabcac") "repeat alias 2")
+(assert (not (:match peg5 "abcabc")) "repeat alias 3")
+
 (end-suite)

test/suite9.janet

@@ -0,0 +1,51 @@
+# Copyright (c) 2020 Calvin Rose & contributors
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+(import ./helper :prefix "" :exit true)
+(start-suite 9)
+
+# Net testing
+
+(defn handler
+  "Simple handler for connections."
+  [stream]
+  (defer (:close stream)
+    (def id (gensym))
+    (def b @"")
+    (:read stream 1024 b)
+    (:write stream b)
+    (buffer/clear b)))
+
+(def s (net/server "127.0.0.1" "8000" handler))
+(assert s "made server 1")
+
+(defn test-echo [msg]
+  (with [conn (net/connect "127.0.0.1" "8000")]
+    (:write conn msg)
+    (def res (:read conn 1024))
+    (assert (= (string res) msg) (string "echo " msg))))
+
+(test-echo "hello")
+(test-echo "world")
+(test-echo (string/repeat "abcd" 200))
+
+(:close s)
+
+(end-suite)

tools/msi/janet.wxs

@@ -0,0 +1,200 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?define Name = "Janet" ?>
+<?define Description = "The Janet Programming Language" ?>
+<?define Manufacturer = "Janet-Lang.org" ?>
+<?define WebPage = "https://janet-lang.org" ?>
+<?ifdef env.JANET_VERSION ?>
+    <?define Version = "$(env.JANET_VERSION)" ?>
+<?else?>
+    <?define Version = "0.0.0" ?>
+<?endif?>
+<?if $(sys.BUILDARCH)="x64" ?>
+    <?define UpgradeCode="712CACD6-09AA-430A-831C-80FDFFE3F9ED" ?>
+    <?define ProgramFilesFolder="ProgramFiles64Folder" ?>
+    <?define Win64="yes" ?>
+    <?define Arch="(x64)" ?>
+<?elseif $(sys.BUILDARCH)="x86" ?>
+    <?define UpgradeCode="0411837a-82c4-4dc7-872b-134d0c1b0228" ?>
+    <?define ProgramFilesFolder="ProgramFilesFolder" ?>
+    <?define Win64="no" ?>
+    <?define Arch="(x86)" ?>
+<?else ?>
+    <?error Unsupported value of sys.BUILDARCH=$(sys.BUILDARCH)?>
+<?endif?>
+<?define BaseRegKey="Software\Microsoft\$(var.Manufacturer)\$(var.Name)" ?>
+
+
+<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
+    <Product Id="*"
+			 Name="$(var.Name)"
+			 Language="1033"
+			 Version="$(var.Version)"
+			 Manufacturer="$(var.Manufacturer)"
+			 UpgradeCode="$(var.UpgradeCode)">
+        <Package Compressed="yes"
+				 InstallScope="perUser"
+				 Manufacturer="$(var.Manufacturer)"
+				 Description="$(var.Description)" />
+        <MajorUpgrade DowngradeErrorMessage="A later version of [ProductName] is already installed. Setup will now exit."/>
+        <MediaTemplate EmbedCab="yes" />
+        <Property Id="DISABLEADVTSHORTCUTS" Value="1" />
+
+        <!-- Set UI images (use the -b option to light.exe to set where these files are) -->
+        <WixVariable Id="WixUIBannerBmp" Value="JanetTopBanner.png" />
+        <WixVariable Id="WixUIDialogBmp" Value="JanetDialog.png" />
+        <WixVariable Id="WixUILicenseRtf" Value="LICENSE.rtf" />
+
+        <Icon Id="Janet.ico" SourceFile="assets\icon.ico" />
+
+        <!-- Add some details to Add/Remove Programs entry -->
+        <Property Id="ARPPRODUCTICON" Value="Janet.ico" />
+        <Property Id='ARPCOMMENTS'>$(var.Description)</Property>
+        <Property Id='ARPURLINFOABOUT'>$(var.WebPage)</Property>
+        <Property Id='COMPANY'>$(var.Manufacturer)</Property>
+
+        <!-- Default to per-user installs -->
+        <Property Id="WixAppFolder" Value="WixPerUserFolder" />
+
+        <Property Id="ApplicationFolderName" Value="$(var.Name)" />
+
+        <!-- Fix WixUI_Advanced to work with x64 -->
+        <CustomAction Id="WixSetDefaultPerMachineFolderPerArch"
+            Property="WixPerMachineFolder"
+            Value="[$(var.ProgramFilesFolder)][ApplicationFolderName]"
+            Execute="immediate"/>
+        <InstallExecuteSequence>
+            <Custom Action="WixSetDefaultPerMachineFolderPerArch" Before="WixSetPerMachineFolder" />
+        </InstallExecuteSequence>
+        <InstallUISequence>
+            <Custom Action="WixSetDefaultPerMachineFolderPerArch" Before="WixSetPerMachineFolder" />
+        </InstallUISequence>
+
+        <Directory Id="TARGETDIR" Name="SourceDir">
+            <Directory Id="$(var.ProgramFilesFolder)">
+                <Directory Id="APPLICATIONFOLDER" Name="$(var.Name)">
+                    <Directory Id="BinDir" Name="bin"/>
+                    <Directory Id="CDir" Name="C"/>
+                    <Directory Id="DocsDir" Name="docs"/>
+                    <Directory Id="LibraryDir" Name="Library"/>
+                </Directory>
+            </Directory>
+            <Directory Id="ProgramMenuFolder">
+                <Directory Id="ApplicationProgramsFolder" Name="$(var.Name)" />
+            </Directory>
+        </Directory>
+
+        <!-- 
+          Define the files to be installed.
+          File/@Source is relative to where this file is compiled, the root of the repository in this case.
+          File/@Name is the destination file name, if not set it defaults to the file name part of Source.
+          Component/@Directory is the Id of the destination directory - where the directory name and
+            hierarchy is set in the section above
+        -->
+        <ComponentGroup Id="Files">
+            <Component Directory="APPLICATIONFOLDER">
+                <File Source="README.md"/>
+                <RemoveFolder Id="RemoveRootDir" On="uninstall" />
+            </Component>
+            <Component Directory="APPLICATIONFOLDER">
+                <File Source="LICENSE"/>
+            </Component>
+            <Component Directory="APPLICATIONFOLDER">
+                <File Source="assets\icon.ico"/>
+            </Component>
+
+            <Component Directory="BinDir">
+                <File Source="dist\janet.exe" KeyPath="yes">
+                    <Shortcut Id="JanetExeShortcut"
+                        Directory="ApplicationProgramsFolder"
+                        Name="$(var.Name)"
+                        Description="$(var.Description)"
+                        Icon="Janet.ico"
+                        Advertise="yes"
+                        WorkingDirectory="INSTALLFOLDER" />
+                </File>
+                <RemoveFolder Id="RemoveBinDir" On="uninstall" />
+            </Component>
+            <Component Directory="BinDir">
+                <File Source="jpm" Name="jpm.janet"/>
+            </Component>
+            <Component Directory="BinDir">
+                <File Source="tools\jpm.bat"/>
+            </Component>
+
+            <Component Directory="CDir">
+                <File Source="dist\janet.h"/>
+                <RemoveFolder Id="RemoveCDir" On="uninstall" />
+            </Component>
+            <Component Directory="CDir">
+                <File Source="dist\janetconf.h"/>
+            </Component>
+            <Component Directory="CDir">
+                <File Source="dist\janet.lib"/>
+            </Component>
+            <Component Directory="CDir">
+                <File Source="dist\janet.exp"/>
+            </Component>
+            <Component Directory="CDir">
+                <File Source="dist\janet.c"/>
+            </Component>
+            <Component Directory="CDir">
+                <File Source="dist\libjanet.lib"/>
+            </Component>
+
+            <Component Id="LibraryComponent" Directory="LibraryDir" Guid="3860e981-5f94-4002-b5d5-2d9ec0d2792d" KeyPath="yes">
+                <RemoveFolder Id="RemoveLibraryDir" On="uninstall" />
+            </Component>
+
+            <Component Id="DocsComponent" Directory="DocsDir">
+                <File Source="dist\doc.html" Name="docs.html" KeyPath="yes">
+                    <Shortcut Id="JanetDocsShortcut"
+                        Directory="ApplicationProgramsFolder"
+                        Name="$(var.Name) Documentation"
+                        Description="$(var.Description)"
+                        Advertise="yes"/>
+                </File>
+                <RemoveFolder Id="RemoveDocsDir" On="uninstall" />
+            </Component>
+        </ComponentGroup>
+
+        <Component Id="StartMenu" Directory="ApplicationProgramsFolder">
+            <RegistryValue Root="HKMU" Key="$(var.BaseRegKey)" Name="installed" Type="integer" Value="1" KeyPath="yes" />
+            <RemoveFolder Id="RemoveApplicationProgramsFolder" On="uninstall" />
+        </Component>
+
+        <!-- This component is duplicated with different conditions so that we can set system or user environment variables -->
+        <Component Id="SetEnvVarsPerMachine" Directory="ApplicationProgramsFolder" Guid="57b1e1ef-89c8-4ce4-9f0f-37618677c5a4" KeyPath="yes">
+            <Condition>ALLUSERS=1</Condition>
+            <Environment Id="PATH_PERMACHINE" Name="PATH" Value="[BinDir]" Action="set" Permanent="no" System="yes" Part="last"/>
+            <Environment Id="JANET_BINPATH_PERMACHINE" Name="JANET_BINPATH" Value="[BinDir]" Action="set" Permanent="no" System="yes"/>
+            <Environment Id="JANET_PATH_PERMACHINE" Name="JANET_PATH" Value="[LibraryDir]" Action="set" Permanent="no" System="yes" />
+            <Environment Id="JANET_HEADERPATH_PERMACHINE" Name="JANET_HEADERPATH" Value="[CDir]" Action="set" Permanent="no" System="yes"/>
+            <Environment Id="JANET_LIBPATH_PERMACHINE" Name="JANET_LIBPATH" Value="[CDir]" Action="set" Permanent="no" System="yes"/>
+        </Component>
+        <Component Id="SetEnvVarsPerUser" Directory="ApplicationProgramsFolder" Guid="128be307-488b-49aa-971a-d2ae00a1a584" KeyPath="yes">
+            <Condition>NOT ALLUSERS=1</Condition>
+            <Environment Id="PATH_PERUSER" Name="PATH" Value="[BinDir]" Action="set" Permanent="no" System="no" Part="last"/>
+            <Environment Id="JANET_BINPATH_PERUSER" Name="JANET_BINPATH" Value="[BinDir]" Action="set" Permanent="no" System="no"/>
+            <Environment Id="JANET_PATH_PERUSER" Name="JANET_PATH" Value="[LibraryDir]" Action="set" Permanent="no" System="no" />
+            <Environment Id="JANET_HEADERPATH_PERUSER" Name="JANET_HEADERPATH" Value="[CDir]" Action="set" Permanent="no" System="no"/>
+            <Environment Id="JANET_LIBPATH_PERUSER" Name="JANET_LIBPATH" Value="[CDir]" Action="set" Permanent="no" System="no"/>
+        </Component>
+
+        <Feature Id="MainFeature" Title="$(var.Name) $(var.Version)" 
+            Level="1" Absent="disallow" AllowAdvertise="no" InstallDefault="local"
+            Description="$(var.Description)">
+            <ComponentGroupRef Id="Files" />
+            <ComponentRef Id="StartMenu" />
+            <ComponentRef Id="SetEnvVarsPerMachine" />
+            <ComponentRef Id="SetEnvVarsPerUser" />
+        </Feature>
+
+        <UI>
+            <UIRef Id="WixUI_Advanced"/>
+            <!-- FindRelatedProducts runs before the user select the install scope, so we ask it to run again if the have changed the scope
+             -->
+            <Publish Dialog="InstallScopeDlg" Control="Next" Order="8" Event="DoAction" Value="FindRelatedProducts">WixAppFolder = "WixPerMachineFolder"</Publish>
+        </UI>
+    </Product>
+</Wix>

tools/patch-jpm.janet

@@ -0,0 +1,33 @@
+# Patch jpm to have the correct paths for the current install.
+# usage: janet patch-jpm.janet output --libdir=/usr/local/lib/x64-linux/ --binpath
+
+(def- argpeg
+  (peg/compile
+    '(* "--" '(to "=") "=" '(any 1))))
+
+(def- args (tuple/slice (dyn :args) 3))
+(def- len (length args))
+(var i :private 0)
+
+(def install-paths @{})
+
+# Get flags
+(each a args
+  (if-let [m (peg/match argpeg a)]
+    (let [[key value] m]
+      (put install-paths (keyword key) value))))
+
+(def- replace-peg
+  (peg/compile
+    ~(% (* '(to "###START###")
+           (constant ,(string/format "# Inserted by tools/patch-jpm.janet\n(def install-paths %j)" install-paths))
+           (thru "###END###")
+           '(any 1)))))
+
+(def source (slurp ((dyn :args) 1)))
+(def newsource (0 (peg/match replace-peg source)))
+
+(spit ((dyn :args) 2) newsource)
+
+(unless (= :windows (os/which))
+  (os/shell (string `chmod +x "` ((dyn :args) 2) `"`)))

tools/tm_lang_gen.janet

@@ -230,53 +230,53 @@
       <key>name</key>
       <string>punctuation.other.janet</string>
     </dict>
-    <!-- string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*]) token match here (?![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])</string -->
+    <!-- string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]) token match here (?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string -->
     <key>literal</key>
     <dict>
       <key>match</key>
-      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])(true|false|nil)(?![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])</string>
+      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])(true|false|nil)(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
       <key>name</key>
       <string>constant.language.janet</string>
     </dict>
     <key>corelib</key>
     <dict>
       <key>match</key>
-            <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])(%ALLSYMBOLS%)(?![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])</string>
+            <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])(%ALLSYMBOLS%)(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
       <key>name</key>
       <string>keyword.control.janet</string>
     </dict>
     <key>keysym</key>
     <dict>
       <key>match</key>
-      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*]):[\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*]*</string>
+      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]):[\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]*</string>
       <key>name</key>
       <string>constant.keyword.janet</string>
     </dict>
     <key>symbol</key>
     <dict>
       <key>match</key>
-      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])[\.a-zA-Z_\-=!@\$%^&amp;?|\\/&lt;&gt;*][\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*]*</string>
+      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[\.a-zA-Z_\-=!@\$%^&amp;?/&lt;&gt;*][\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]*</string>
       <key>name</key>
       <string>variable.other.janet</string>
     </dict>
     <key>hex-number</key>
     <dict>
       <key>match</key>
-      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])[-+]?0x([_\da-fA-F]+|[_\da-fA-F]+\.[_\da-fA-F]*|\.[_\da-fA-F]+)(&amp;[+-]?[\da-fA-F]+)?(?![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])</string>
+      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[-+]?0x([_\da-fA-F]+|[_\da-fA-F]+\.[_\da-fA-F]*|\.[_\da-fA-F]+)(&amp;[+-]?[\da-fA-F]+)?(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
       <key>name</key>
       <string>constant.numeric.hex.janet</string>
     </dict>
     <key>dec-number</key>
     <dict>
       <key>match</key>
-      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])[-+]?([_\d]+|[_\d]+\.[_\d]*|\.[_\d]+)([eE&amp;][+-]?[\d]+)?(?![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])</string>
+      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[-+]?([_\d]+|[_\d]+\.[_\d]*|\.[_\d]+)([eE&amp;][+-]?[\d]+)?(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
       <key>name</key>
       <string>constant.numeric.decimal.janet</string>
     </dict>
     <key>r-number</key>
     <dict>
       <key>match</key>
-      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])[-+]?\d\d?r([_\w]+|[_\w]+\.[_\w]*|\.[_\w]+)(&amp;[+-]?[\w]+)?(?![\.:\w_\-=!@\$%^&amp;?|\\/&lt;&gt;*])</string>
+      <string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[-+]?\d\d?r([_\w]+|[_\w]+\.[_\w]*|\.[_\w]+)(&amp;[+-]?[\w]+)?(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
       <key>name</key>
       <string>constant.numeric.decimal.janet</string>
     </dict>