Examples of com.github.sommeri.less4j.js.JsRegExp

com.github.sommeri.less4j.js.JsRegExp

A class for regular expressions with features like Javascript's RegExp, plus Javascript String's replace and split methods (which can take a RegExp parameter). The pure Java implementation (for server-side use) uses Java's Pattern class, unavailable under GWT. The super-sourced GWT implementation simply calls on to the native Javascript classes. There are a few small incompatibilities between the two implementations. Java-specific constructs in the regular expression syntax (e.g. [a-z&&[^bc]], (?<=foo), \A, \Q) work only in the pure Java implementation, not the GWT implementation, and are not rejected by either. Also, the Javscript-specific constructs $` and $' in the replacement expression work only in the GWT implementation, not the pure Java implementation, which rejects them.

    return replaced;
  }


  private Expression regexp(Expression targetExpression, String string, String pattern, String replacement, String flags, ProblemsHandler problemsHandler, FunctionExpression call) {
    try {
      JsRegExp exp = JsRegExp.compile(pattern, flags);
      String replaced = exp.replace(string, replacement);
      return buildResult(targetExpression, replaced);
    } catch (IllegalArgumentException ex) {
      problemsHandler.regexpFunctionError(call, ex.getMessage());
      return new FaultyExpression(call.getUnderlyingStructure());
    }

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