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add .replace() with callback to jsre (#21371)

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Qinsi (James) ZHU 2023-02-17 01:12:48 +08:00 • committed by GitHub
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lib/js/jsre.nim
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@ -34,6 +34,9 @@ func compile*(self: RegExp; pattern: cstring; flags: cstring) {.importjs: "#.com
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 replace*(pattern: cstring, self: RegExp, cb: proc (args: varargs[cstring]): cstring): cstring {.importcpp.}
## Returns a new string with some or all matches of a pattern replaced by given callback function
func split*(pattern: cstring; self: RegExp): seq[cstring] {.importjs: "(#.split(#) || [])".}
## Divides a string into an ordered list of substrings and returns the array
@ -88,5 +91,7 @@ runnableExamples:
assert "do1ne".split(jsregex) == @["do".cstring, "ne".cstring]
jsregex.compile(r"[lw]", r"i")
assert "hello world".replace(jsregex,"X") == "heXlo world"
jsregex.compile(r"([a-z])\1*", r"g")
assert "abbcccdddd".replace(jsregex, proc (m: varargs[cstring]): cstring = ($m[0] & $(m.len)).cstring) == "a1b2c3d4"
let digitsRegex: RegExp = newRegExp(r"\d")
assert "foo".match(digitsRegex) == @[]