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WIP: Added missing functions to jsre module (#17881)

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* added missing functions: `replace`, `replaceAll`, `split`, `match`
* added `startsWith` & `endsWith`
* Update lib/js/jsre.nim

Co-authored-by: Juan Carlos <juancarlospaco@gmail.com>
This commit is contained in:
Yanis Zafirópulos
2021-05-01 09:37:02 +02:00
committed by GitHub
parent 9f75e8abc1
commit a55c7e9679
1 changed files with 30 additions and 0 deletions
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30
lib/js/jsre.nim
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@@ -30,6 +30,15 @@ func newRegExp*(pattern: cstring): RegExp {.importjs: "new RegExp(@)".}
func compile*(self: RegExp; pattern: cstring; flags: cstring) {.importjs: "#.compile(@)".}
## Recompiles a regular expression during execution of a script.
func replace*(pattern: cstring; self: RegExp; replacement: cstring): cstring {.importjs: "#.replace(#, #)".}
## Returns a new string with some or all matches of a pattern replaced by given replacement
func split*(pattern: cstring; self: RegExp): seq[cstring] {.importjs: "#.split(#)".}
## Divides a string into an ordered list of substrings and returns the array
func match*(pattern: cstring; self: RegExp): seq[cstring] {.importjs: "#.match(#)".}
## Returns an array of matches of a RegExp against given string
func exec*(self: RegExp; pattern: cstring): seq[cstring] {.importjs: "#.exec(#)".}
## Executes a search for a match in its string parameter.
@@ -51,6 +60,20 @@ func contains*(pattern: cstring; self: RegExp): bool =
assert "xabc".contains jsregex
asm "`result` = `self`.test(`pattern`);"
func startsWith*(pattern: cstring; self: RegExp): bool =
## Tests if string starts with given RegExp
runnableExamples:
let jsregex: RegExp = newRegExp(r"abc", r"i")
assert "abcd".startsWith jsregex
pattern.contains(newRegExp(("^" & $(self.source)).cstring, self.flags))
func endsWith*(pattern: cstring; self: RegExp): bool =
## Tests if string ends with given RegExp
runnableExamples:
let jsregex: RegExp = newRegExp(r"bcd", r"i")
assert "abcd".endsWith jsregex
pattern.contains(newRegExp(($(self.source) & "$").cstring, self.flags))
runnableExamples:
let jsregex: RegExp = newRegExp(r"\s+", r"i")
@@ -61,3 +84,10 @@ runnableExamples:
jsregex.compile(r"[0-9]", r"i")
assert "0123456789abcd".contains jsregex
assert $jsregex == "/[0-9]/i"
jsregex.compile(r"abc", r"i")
assert "abcd".startsWith jsregex
assert "dabc".endsWith jsregex
jsregex.compile(r"\d", r"i")
assert "do1ne".split(jsregex) == @["do".cstring, "ne".cstring]
jsregex.compile(r"[lw]", r"i")
assert "hello world".replace(jsregex,"X") == "heXlo world"