Oniguruma regex optimizer

Test the output of oniguruma-parser's optimizer module, which minifies Oniguruma regexes and improves their performance.

Try it

flags i ignoreCase m dotAll: JS flag s x extended: insignificant whitespace and comments D digitIsAscii: ASCII \d, \p{Digit}, etc. P posixIsAscii: ASCII POSIX properties (includes flags D, S, W) S spaceIsAscii: ASCII \s, \p{Space}, etc. W wordIsAscii: ASCII \w, \p{Word}, \b, etc. y{?} textSegmentMode: changes \X, \y

More options

allowOrphanBackrefs Useful with TextMate grammars that merge backrefs across begin and end patterns

captureGroup Unnamed captures and numbered calls allowed when using named capture; on by default in vscode-oniguruma

singleline ^ as \A; $ as \Z

See the optimizer readme for more details. The output shows the pattern property from the optimize function's result. Library functions including toOnigurumaAst, parse, traverse, generate, and optimize can be run from the console on this page. Pretty-print ASTs by passing them to printAst.

Don't optimize (show generator output) Calls generate(parse(…)) Show output flags