20 lines
581 B
Nim
20 lines
581 B
Nim
import strutils
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iterator tokenize(text: string; sep: openArray[string]): tuple[token: string, isSep: bool] =
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var i, lastMatch = 0
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while i < text.len:
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for j, s in sep:
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if text[i..text.high].startsWith s:
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if i > lastMatch: yield (text[lastMatch ..< i], false)
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yield (s, true)
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lastMatch = i + s.len
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i += s.high
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break
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inc i
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if i > lastMatch: yield (text[lastMatch ..< i], false)
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for token, isSep in "a!===b=!=c".tokenize(["==", "!=", "="]):
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if isSep: stdout.write '{',token,'}'
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else: stdout.write token
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echo ""
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