protected CreateSimpleLexer()

in src/prettify/parser/Prettify.java [467:493]

• 25 lines of code
• 6 McCabe index (conditional complexity)

    protected CreateSimpleLexer(List<List<Object>> shortcutStylePatterns, List<List<Object>> fallthroughStylePatterns) throws Exception {
      this.fallthroughStylePatterns = fallthroughStylePatterns;

      List<List<Object>> allPatterns = new ArrayList<List<Object>>(shortcutStylePatterns);
      allPatterns.addAll(fallthroughStylePatterns);
      List<Pattern> allRegexs = new ArrayList<Pattern>();
      Map<String, Object> regexKeys = new HashMap<String, Object>();
      for (int i = 0, n = allPatterns.size(); i < n; ++i) {
        List<Object> patternParts = allPatterns.get(i);
        String shortcutChars = patternParts.size() > 3 ? (String) patternParts.get(3) : null;
        if (shortcutChars != null) {
          for (int c = shortcutChars.length(); --c >= 0;) {
            shortcuts.put(shortcutChars.charAt(c), patternParts);
          }
        }
        Pattern regex = (Pattern) patternParts.get(1);
        String k = regex.pattern();
        if (regexKeys.get(k) == null) {
          allRegexs.add(regex);
          regexKeys.put(k, new Object());
        }
      }
      allRegexs.add(Pattern.compile("[\0-\\uffff]"));
      tokenizer = new CombinePrefixPattern().combinePrefixPattern(allRegexs);

      nPatterns = fallthroughStylePatterns.size();
    }