// CodeMirror, copyright © by Marijn Haverbeke and others // Distributed under an MIT license: codemirror.net/LICENSE

(function(mod) {

if (typeof exports == "object" && typeof module == "object") // CommonJS
  mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
  define(["../../lib/codemirror"], mod);
else // Plain browser env
  mod(CodeMirror);

})(function(CodeMirror) { “use strict”;

CodeMirror.defineMode('z80', function() {

var keywords1 = /^(exx?|(ld|cp|in)([di]r?)?|pop|push|ad[cd]|cpl|daa|dec|inc|neg|sbc|sub|and|bit|[cs]cf|x?or|res|set|r[lr]c?a?|r[lr]d|s[lr]a|srl|djnz|nop|rst|[de]i|halt|im|ot[di]r|out[di]?)\b/i;
var keywords2 = /^(call|j[pr]|ret[in]?)\b/i;
var keywords3 = /^b_?(call|jump)\b/i;
var variables1 = /^(af?|bc?|c|de?|e|hl?|l|i[xy]?|r|sp)\b/i;
var variables2 = /^(n?[zc]|p[oe]?|m)\b/i;
var errors = /^([hl][xy]|i[xy][hl]|slia|sll)\b/i;
var numbers = /^([\da-f]+h|[0-7]+o|[01]+b|\d+)\b/i;

return {
  startState: function() {
    return {context: 0};
  },
  token: function(stream, state) {
    if (!stream.column())
      state.context = 0;

    if (stream.eatSpace())
      return null;

    var w;

    if (stream.eatWhile(/\w/)) {
      w = stream.current();

      if (stream.indentation()) {
        if (state.context == 1 && variables1.test(w))
          return 'variable-2';

        if (state.context == 2 && variables2.test(w))
          return 'variable-3';

        if (keywords1.test(w)) {
          state.context = 1;
          return 'keyword';
        } else if (keywords2.test(w)) {
          state.context = 2;
          return 'keyword';
        } else if (keywords3.test(w)) {
          state.context = 3;
          return 'keyword';
        }

        if (errors.test(w))
          return 'error';
      } else if (numbers.test(w)) {
        return 'number';
      } else {
        return null;
      }
    } else if (stream.eat(';')) {
      stream.skipToEnd();
      return 'comment';
    } else if (stream.eat('"')) {
      while (w = stream.next()) {
        if (w == '"')
          break;

        if (w == '\\')
          stream.next();
      }
      return 'string';
    } else if (stream.eat('\'')) {
      if (stream.match(/\\?.'/))
        return 'number';
    } else if (stream.eat('.') || stream.sol() && stream.eat('#')) {
      state.context = 4;

      if (stream.eatWhile(/\w/))
        return 'def';
    } else if (stream.eat('$')) {
      if (stream.eatWhile(/[\da-f]/i))
        return 'number';
    } else if (stream.eat('%')) {
      if (stream.eatWhile(/[01]/))
        return 'number';
    } else {
      stream.next();
    }
    return null;
  }
};

});

CodeMirror.defineMIME(“text/x-z80”, “z80”);

});