mirror of
https://github.com/janet-lang/janet
synced 2024-12-23 06:50:26 +00:00
193 lines
5.7 KiB
Plaintext
193 lines
5.7 KiB
Plaintext
# Copyright (c) 2023 Calvin Rose
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to
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# deal in the Software without restriction, including without limitation the
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# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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# sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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(import ./helper :prefix "" :exit true)
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(start-suite)
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# 7e46ead2f
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(assert (not false) "false literal")
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(assert true "true literal")
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(assert (not nil) "nil literal")
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(assert (= '(1 2 3) (quote (1 2 3)) (tuple 1 2 3)) "quote shorthand")
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# String literals
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# 45f8db0
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(assert (= "abcd" "\x61\x62\x63\x64") "hex escapes")
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(assert (= "\e" "\x1B") "escape character")
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(assert (= "\x09" "\t") "tab character")
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# Long strings
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# 7e6342720
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(assert (= "hello, world" `hello, world`) "simple long string")
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(assert (= "hello, \"world\"" `hello, "world"`)
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"long string with embedded quotes")
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(assert (= "hello, \\\\\\ \"world\"" `hello, \\\ "world"`)
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"long string with embedded quotes and backslashes")
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#
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# Longstring indentation
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#
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# 7aa4241
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(defn reindent
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"Reindent the contents of a longstring as the Janet parser would.
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This include removing leading and trailing newlines."
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[text indent]
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# Detect minimum indent
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(var rewrite true)
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(each index (string/find-all "\n" text)
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(for i (+ index 1) (+ index indent 1)
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(case (get text i)
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nil (break)
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(chr "\n") (break)
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(chr " ") nil
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(set rewrite false))))
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# Only re-indent if no dedented characters.
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(def str
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(if rewrite
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(peg/replace-all ~(* "\n" (between 0 ,indent " ")) "\n" text)
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text))
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(def first-nl (= (chr "\n") (first str)))
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(def last-nl (= (chr "\n") (last str)))
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(string/slice str (if first-nl 1 0) (if last-nl -2)))
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(defn reindent-reference
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"Same as reindent but use parser functionality. Useful for
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validating conformance."
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[text indent]
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(if (empty? text) (break text))
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(def source-code
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(string (string/repeat " " indent) "``````"
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text
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"``````"))
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(parse source-code))
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(var indent-counter 0)
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(defn check-indent
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[text indent]
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(++ indent-counter)
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(let [a (reindent text indent)
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b (reindent-reference text indent)]
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(assert (= a b)
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(string "indent " indent-counter " (indent=" indent ")"))))
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(check-indent "" 0)
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(check-indent "\n" 0)
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(check-indent "\n" 1)
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(check-indent "\n\n" 0)
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(check-indent "\n\n" 1)
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(check-indent "\nHello, world!" 0)
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(check-indent "\nHello, world!" 1)
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(check-indent "Hello, world!" 0)
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(check-indent "Hello, world!" 1)
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(check-indent "\n Hello, world!" 4)
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(check-indent "\n Hello, world!\n" 4)
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(check-indent "\n Hello, world!\n " 4)
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(check-indent "\n Hello, world!\n " 4)
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(check-indent "\n Hello, world!\n dedented text\n " 4)
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(check-indent "\n Hello, world!\n indented text\n " 4)
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# Symbols with @ character
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# d68eae9
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(def @ 1)
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(assert (= @ 1) "@ symbol")
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(def @-- 2)
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(assert (= @-- 2) "@-- symbol")
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(def @hey 3)
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(assert (= @hey 3) "@hey symbol")
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# Parser clone
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# 43520ac67
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(def p (parser/new))
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(assert (= 7 (parser/consume p "(1 2 3 ")) "parser 1")
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(def p2 (parser/clone p))
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(parser/consume p2 ") 1 ")
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(parser/consume p ") 1 ")
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(assert (deep= (parser/status p) (parser/status p2)) "parser 2")
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(assert (deep= (parser/state p) (parser/state p2)) "parser 3")
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# Parser errors
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# 976dfc719
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(defn parse-error [input]
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(def p (parser/new))
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(parser/consume p input)
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(parser/error p))
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# Invalid utf-8 sequences
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(assert (not= nil (parse-error @"\xc3\x28")) "reject invalid utf-8 symbol")
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(assert (not= nil (parse-error @":\xc3\x28")) "reject invalid utf-8 keyword")
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# Parser line and column numbers
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# 77b79e989
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(defn parser-location [input &opt location]
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(def p (parser/new))
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(parser/consume p input)
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(if location
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(parser/where p ;location)
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(parser/where p)))
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(assert (= [1 7] (parser-location @"(+ 1 2)")) "parser location 1")
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(assert (= [5 7] (parser-location @"(+ 1 2)" [5])) "parser location 2")
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(assert (= [10 10] (parser-location @"(+ 1 2)" [10 10])) "parser location 3")
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# Issue #861 - should be valgrind clean
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# 39c6be7cb
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(def step1 "(a b c d)\n")
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(def step2 "(a b)\n")
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(def p1 (parser/new))
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(parser/state p1)
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(parser/consume p1 step1)
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(loop [v :iterate (parser/produce p1)])
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(parser/state p1)
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(def p2 (parser/clone p1))
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(parser/state p2)
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(parser/consume p2 step2)
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(loop [v :iterate (parser/produce p2)])
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(parser/state p2)
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# parser delimiter errors
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(defn test-error [delim fmt]
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(def p (parser/new))
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(parser/consume p delim)
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(parser/eof p)
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(def msg (string/format fmt delim))
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(assert (= (parser/error p) msg) "delimiter error"))
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(each c [ "(" "{" "[" "\"" "``" ]
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(test-error c "unexpected end of source, %s opened at line 1, column 1"))
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# parser/insert
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(def p (parser/new))
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(parser/consume p "(")
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(parser/insert p "hello")
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(parser/consume p ")")
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(assert (= (parser/produce p) ["hello"]))
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(def p (parser/new))
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(parser/consume p `("hel`)
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(parser/insert p `lo`)
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(parser/consume p `")`)
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(assert (= (parser/produce p) ["hello"]))
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(end-suite)
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