custom integer literals (#17489)

* user defined integer literals; refs #17020
* updated renderer.nim
* use mlexerutils helper
* imported all test cases from https://github.com/nim-lang/Nim/pull/17020
* final grammar updated
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Andreas Rumpf 2021-03-24 14:46:19 +01:00 • committed by GitHub
commit 5f5a92379f
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12 changed files with 409 additions and 218 deletions

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discard """
output: "a\"\"long string\"\"\"\"\"abc\"def_'2'●𝌆𝌆A"
"""
# Test the new different string literals
const
tripleEmpty = """"long string"""""""" # "long string """""
rawQuote = r"a"""
raw = r"abc""def"
escaped = "\x5f'\50'\u25cf\u{1D306}\u{1d306}\u{41}"
stdout.write(rawQuote)
stdout.write(tripleEmpty)
stdout.write(raw)
stdout.writeLine(escaped)