mirror of
https://github.com/janet-lang/janet
synced 2024-11-28 02:59:54 +00:00
README grammar and formatting changes
This commit is contained in:
wackbyte
parent
bef5bd72c2
commit
4238a4ca6a
71
README.md
71
README.md
@ -7,14 +7,14 @@
|
||||
<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
|
||||
lisp-like language, 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.
|
||||
|
||||
There is a REPL for trying out the language, as well as the ability
|
||||
to run script files. This client program is separate from the core runtime, so
|
||||
Janet can be embedded in other programs. Try Janet in your browser at
|
||||
[https://janet-lang.org](https://janet-lang.org).
|
||||
<https://janet-lang.org>.
|
||||
|
||||
If you'd like to financially support the ongoing development of Janet, consider
|
||||
[sponsoring its primary author](https://github.com/sponsors/bakpakin) through GitHub.
|
||||
@ -41,8 +41,8 @@ Lua, but smaller than GNU Guile or Python.
|
||||
* Macros
|
||||
* Multithreading
|
||||
* Per-thread event loop for efficient evented IO
|
||||
* Byte code interpreter with an assembly interface, as well as bytecode verification
|
||||
* Tail call Optimization
|
||||
* Bytecode interpreter with an assembly interface, as well as bytecode verification
|
||||
* Tail-call optimization
|
||||
* Direct interop with C via abstract types and C functions
|
||||
* Dynamically load C libraries
|
||||
* Functional and imperative standard library
|
||||
@ -57,7 +57,7 @@ Lua, but smaller than GNU Guile or Python.
|
||||
## Documentation
|
||||
|
||||
* For a quick tutorial, see [the introduction](https://janet-lang.org/docs/index.html) for more details.
|
||||
* For the full API for all functions in the core library, see [the core API doc](https://janet-lang.org/api/index.html)
|
||||
* For the full API for all functions in the core library, see [the core API doc](https://janet-lang.org/api/index.html).
|
||||
|
||||
Documentation is also available locally in the REPL.
|
||||
Use the `(doc symbol-name)` macro to get API
|
||||
@ -65,7 +65,7 @@ documentation for symbols in the core library. For example,
|
||||
```
|
||||
(doc apply)
|
||||
```
|
||||
Shows documentation for the `apply` function.
|
||||
shows documentation for the `apply` function.
|
||||
|
||||
To get a list of all bindings in the default
|
||||
environment, use the `(all-bindings)` function. You
|
||||
@ -84,7 +84,7 @@ the SourceHut mirror is actively maintained.
|
||||
|
||||
The Makefile is non-portable and requires GNU-flavored make.
|
||||
|
||||
```
|
||||
```sh
|
||||
cd somewhere/my/projects/janet
|
||||
make
|
||||
make test
|
||||
@ -100,7 +100,7 @@ Find out more about the available make targets by running `make help`.
|
||||
32-bit Haiku build instructions are the same as the UNIX-like build instructions,
|
||||
but you need to specify an alternative compiler, such as `gcc-x86`.
|
||||
|
||||
```
|
||||
```sh
|
||||
cd somewhere/my/projects/janet
|
||||
make CC=gcc-x86
|
||||
make test
|
||||
@ -112,10 +112,9 @@ make install-jpm-git
|
||||
### FreeBSD
|
||||
|
||||
FreeBSD build instructions are the same as the UNIX-like build instructions,
|
||||
but you need `gmake` to compile. Alternatively, install directly from
|
||||
packages, using `pkg install lang/janet`.
|
||||
but you need `gmake` to compile. Alternatively, install the package directly with `pkg install lang/janet`.
|
||||
|
||||
```
|
||||
```sh
|
||||
cd somewhere/my/projects/janet
|
||||
gmake
|
||||
gmake test
|
||||
@ -127,19 +126,19 @@ gmake install-jpm-git
|
||||
### NetBSD
|
||||
|
||||
NetBSD build instructions are the same as the FreeBSD build instructions.
|
||||
Alternatively, install directly from packages, using `pkgin install janet`.
|
||||
Alternatively, install the package directly with `pkgin install janet`.
|
||||
|
||||
### Windows
|
||||
|
||||
1. Install [Visual Studio](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=15#) or [Visual Studio Build Tools](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools&rel=15#)
|
||||
2. Run a Visual Studio Command Prompt (cl.exe and link.exe need to be on the PATH) and cd to the directory with janet.
|
||||
3. Run `build_win` to compile janet.
|
||||
1. Install [Visual Studio](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=15#) or [Visual Studio Build Tools](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools&rel=15#).
|
||||
2. Run a Visual Studio Command Prompt (`cl.exe` and `link.exe` need to be on your PATH) and `cd` to the directory with Janet.
|
||||
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`
|
||||
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.
|
||||
|
||||
@ -175,9 +174,9 @@ ninja -C build install
|
||||
|
||||
Janet can be hacked on with pretty much any environment you like, but for IDE
|
||||
lovers, [Gnome Builder](https://wiki.gnome.org/Apps/Builder) is probably the
|
||||
best option, as it has excellent meson integration. It also offers code completion
|
||||
best option, as it has excellent Meson integration. It also offers code completion
|
||||
for Janet's C API right out of the box, which is very useful for exploring. VSCode, Vim,
|
||||
Emacs, and Atom will have syntax packages for the Janet language, though.
|
||||
Emacs, and Atom each have syntax packages for the Janet language, though.
|
||||
|
||||
## Installation
|
||||
|
||||
@ -186,8 +185,8 @@ to try out the language, you don't need to install anything. You can also move t
|
||||
|
||||
## Usage
|
||||
|
||||
A REPL is launched when the binary is invoked with no arguments. Pass the -h flag
|
||||
to display the usage information. Individual scripts can be run with `./janet myscript.janet`
|
||||
A REPL is launched when the binary is invoked with no arguments. Pass the `-h` flag
|
||||
to display the usage information. Individual scripts can be run with `./janet myscript.janet`.
|
||||
|
||||
If you are looking to explore, you can print a list of all available macros, functions, and constants
|
||||
by entering the command `(all-bindings)` into the REPL.
|
||||
@ -226,8 +225,8 @@ If installed, you can also run `man janet` to get usage information.
|
||||
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/conf/janetconf.h` can be dragged into any C
|
||||
project and compiled into the project. Janet should be compiled with `-std=c99`
|
||||
`src/include/janet.h` and `src/conf/janetconf.h`, can be dragged into any C
|
||||
project and compiled into it. 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
|
||||
there is no need for dynamic modules, add the define
|
||||
@ -237,24 +236,24 @@ See the [Embedding Section](https://janet-lang.org/capi/embedding.html) on the w
|
||||
|
||||
## Examples
|
||||
|
||||
See the examples directory for some example janet code.
|
||||
See the examples directory for some example Janet code.
|
||||
|
||||
## Discussion
|
||||
|
||||
Feel free to ask questions and join the discussion on the [Janet Gitter Channel](https://gitter.im/janet-language/community).
|
||||
Gitter provides Matrix and irc bridges as well.
|
||||
Feel free to ask questions and join the discussion on the [Janet Gitter channel](https://gitter.im/janet-language/community).
|
||||
Gitter provides Matrix and IRC bridges as well.
|
||||
|
||||
## FAQ
|
||||
|
||||
### Where is (favorite feature from other language)?
|
||||
|
||||
It may exist, it may not. If you want to propose major language features, go ahead and open an issue, but
|
||||
they will likely by closed as "will not implement". Often, such features make one usecase simpler at the expense
|
||||
It may exist, it may not. If you want to propose a major language feature, go ahead and open an issue, but
|
||||
it will likely be closed as "will not implement". Often, such features make one usecase simpler at the expense
|
||||
of 5 others by making the language more complicated.
|
||||
|
||||
### Is there a language spec?
|
||||
|
||||
There is not currently a spec besides the documentation at https://janet-lang.org.
|
||||
There is not currently a spec besides the documentation at <https://janet-lang.org>.
|
||||
|
||||
### Is this Scheme/Common Lisp? Where are the cons cells?
|
||||
|
||||
@ -270,13 +269,13 @@ Internally, Janet is not at all like Clojure.
|
||||
No. They are immutable arrays and hash tables. Don't try and use them like Clojure's vectors
|
||||
and maps, instead they work well as table keys or other identifiers.
|
||||
|
||||
### Can I do Object Oriented programming with Janet?
|
||||
### Can I do object-oriented programming with Janet?
|
||||
|
||||
To some extent, yes. However, it is not the recommended method of abstraction, and performance may suffer.
|
||||
That said, tables can be used to make mutable objects with inheritance and polymorphism, where object
|
||||
methods are implemeted with keywords.
|
||||
methods are implemented with keywords.
|
||||
|
||||
```
|
||||
```clj
|
||||
(def Car @{:honk (fn [self msg] (print "car " self " goes " msg)) })
|
||||
(def my-car (table/setproto @{} Car))
|
||||
(:honk my-car "Beep!")
|
||||
@ -287,9 +286,9 @@ methods are implemeted with keywords.
|
||||
Usually, one of a few reasons:
|
||||
- Often, it already exists in a different form and the Clojure port would be redundant.
|
||||
- Clojure programs often generate a lot of garbage and rely on the JVM to clean it up.
|
||||
Janet does not run on the JVM, and has a more primitive garbage collector.
|
||||
- We want to keep the Janet core small. With Lisps, usually a feature can be added as a library
|
||||
without feeling "bolted on", especially when compared to ALGOL like languages. Adding features
|
||||
Janet does not run on the JVM and has a more primitive garbage collector.
|
||||
- We want to keep the Janet core small. With Lisps, a feature can usually be added as a library
|
||||
without feeling "bolted on", especially when compared to ALGOL-like languages. Adding features
|
||||
to the core also makes it a bit more difficult to keep Janet maximally portable.
|
||||
|
||||
### Why is my terminal spitting out junk when I run the REPL?
|
||||
@ -297,7 +296,7 @@ Usually, one of a few reasons:
|
||||
Make sure your terminal supports ANSI escape codes. Most modern terminals will
|
||||
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
|
||||
the `-n` flag, which disables color output. You can also try the `-s` flag if further issues
|
||||
ensue.
|
||||
|
||||
## Why is it called "Janet"?
|
||||
|
||||
Loading…
Reference in New Issue
Block a user