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Merge pull request #236 from lafriks/feat/ignore_regex

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Improve detection of unsupported regexp syntax
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Alexander 2019-08-05 21:35:47 +02:00 committed by GitHub
commit 1723ec0c10
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1 changed files with 2 additions and 1 deletions
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3
internal/code-generator/generator/heuristics.go
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@ -160,11 +160,12 @@ func parseYaml(file string) (*Heuristics, error) {
// isUnsupportedRegexpSyntax filters regexp syntax that is not supported by RE2.
// In particular, we stumbled up on usage of next cases:
// - lookbehind & lookahead
// - named & numbered capturing group/after text matching
// - backreference
// For referece on supported syntax see https://github.com/google/re2/wiki/Syntax
func isUnsupportedRegexpSyntax(reg string) bool {
return strings.Contains(reg, `(?<`) || strings.Contains(reg, `\1`) ||
return strings.Contains(reg, `(?<`) || strings.Contains(reg, `(?=`) || strings.Contains(reg, `\1`) ||
// See https://github.com/github/linguist/pull/4243#discussion_r246105067
(strings.HasPrefix(reg, multilinePrefix+`/`) && strings.HasSuffix(reg, `/`))
}