function doBeginMatch()

in src/site/assets/highlight.js-11.2.0/highlight.js [1901:1927]

• 24 lines of code
• 9 McCabe index (conditional complexity)

        function doBeginMatch(match) {
          const lexeme = match[0];
          const newMode = match.rule;

          const resp = new Response(newMode);
          // first internal before callbacks, then the public ones
          const beforeCallbacks = [newMode.__beforeBegin, newMode["on:begin"]];
          for (const cb of beforeCallbacks) {
            if (!cb) continue;
            cb(match, resp);
            if (resp.isMatchIgnored) return doIgnore(lexeme);
          }

          if (newMode.skip) {
            modeBuffer += lexeme;
          } else {
            if (newMode.excludeBegin) {
              modeBuffer += lexeme;
            }
            processBuffer();
            if (!newMode.returnBegin && !newMode.excludeBegin) {
              modeBuffer = lexeme;
            }
          }
          startNewMode(newMode, match);
          return newMode.returnBegin ? 0 : lexeme.length;
        }