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Regex

SharpForge supports a subset of System.Text.RegularExpressions.Regex.

Regex.IsMatch

Regex.IsMatch(input, pattern) is the only supported method. The pattern must be a compile-time string literal. The transpiler compiles the .NET regex pattern to a Lua pattern string at transpile time.

using System.Text.RegularExpressions;

bool match = Regex.IsMatch(s, @"^\d+$");
local match = (string.find(s, "^%d+$") ~= nil)

Supported Pattern Syntax

The following .NET regex constructs are supported:

  • . (any character)
  • ^, $ (anchors)
  • *, +, ? (quantifiers)
  • {n}, {n,}, {n,m} (counted quantifiers)
  • [...], [^...] (character classes)
  • \d, \D, \w, \W, \s, \S (shorthand classes)
  • (...) (grouping — erased in Lua pattern)
  • | (alternation — not supported in Lua patterns; produces a transpiler error)

Unsupported

Any pattern construct not listed above, named captures, lookahead/lookbehind, backreferences, and non-IsMatch overloads produce a transpiler error.