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   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: https://codemirror.net/5/LICENSE
   3  
   4  (function(mod) {
   5    if (typeof exports == "object" && typeof module == "object") // CommonJS
   6    mod(require("../../lib/codemirror"));
   7    else if (typeof define == "function" && define.amd) // AMD
   8    define(["../../lib/codemirror"], mod);
   9    else // Plain browser env
  10    mod(CodeMirror);
  11  })(function(CodeMirror) {
  12  "use strict";
  13  
  14  CodeMirror.defineMode('z80', function(_config, parserConfig) {
  15    var ez80 = parserConfig.ez80;
  16    var keywords1, keywords2;
  17    if (ez80) {
  18      keywords1 = /^(exx?|(ld|cp)([di]r?)?|[lp]ea|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|[de]i|halt|im|in([di]mr?|ir?|irx|2r?)|ot(dmr?|[id]rx|imr?)|out(0?|[di]r?|[di]2r?)|tst(io)?|slp)(\.([sl]?i)?[sl])?\b/i;
  19      keywords2 = /^(((call|j[pr]|rst|ret[in]?)(\.([sl]?i)?[sl])?)|(rs|st)mix)\b/i;
  20    } else {
  21      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;
  22      keywords2 = /^(call|j[pr]|ret[in]?|b_?(call|jump))\b/i;
  23    }
  24  
  25    var variables1 = /^(af?|bc?|c|de?|e|hl?|l|i[xy]?|r|sp)\b/i;
  26    var variables2 = /^(n?[zc]|p[oe]?|m)\b/i;
  27    var errors = /^([hl][xy]|i[xy][hl]|slia|sll)\b/i;
  28    var numbers = /^([\da-f]+h|[0-7]+o|[01]+b|\d+d?)\b/i;
  29  
  30    return {
  31      startState: function() {
  32        return {
  33          context: 0
  34        };
  35      },
  36      token: function(stream, state) {
  37        if (!stream.column())
  38          state.context = 0;
  39  
  40        if (stream.eatSpace())
  41          return null;
  42  
  43        var w;
  44  
  45        if (stream.eatWhile(/\w/)) {
  46          if (ez80 && stream.eat('.')) {
  47            stream.eatWhile(/\w/);
  48          }
  49          w = stream.current();
  50  
  51          if (stream.indentation()) {
  52            if ((state.context == 1 || state.context == 4) && variables1.test(w)) {
  53              state.context = 4;
  54              return 'var2';
  55            }
  56  
  57            if (state.context == 2 && variables2.test(w)) {
  58              state.context = 4;
  59              return 'var3';
  60            }
  61  
  62            if (keywords1.test(w)) {
  63              state.context = 1;
  64              return 'keyword';
  65            } else if (keywords2.test(w)) {
  66              state.context = 2;
  67              return 'keyword';
  68            } else if (state.context == 4 && numbers.test(w)) {
  69              return 'number';
  70            }
  71  
  72            if (errors.test(w))
  73              return 'error';
  74          } else if (stream.match(numbers)) {
  75            return 'number';
  76          } else {
  77            return null;
  78          }
  79        } else if (stream.eat(';')) {
  80          stream.skipToEnd();
  81          return 'comment';
  82        } else if (stream.eat('"')) {
  83          while (w = stream.next()) {
  84            if (w == '"')
  85              break;
  86  
  87            if (w == '\\')
  88              stream.next();
  89          }
  90          return 'string';
  91        } else if (stream.eat('\'')) {
  92          if (stream.match(/\\?.'/))
  93            return 'number';
  94        } else if (stream.eat('.') || stream.sol() && stream.eat('#')) {
  95          state.context = 5;
  96  
  97          if (stream.eatWhile(/\w/))
  98            return 'def';
  99        } else if (stream.eat('$')) {
 100          if (stream.eatWhile(/[\da-f]/i))
 101            return 'number';
 102        } else if (stream.eat('%')) {
 103          if (stream.eatWhile(/[01]/))
 104            return 'number';
 105        } else {
 106          stream.next();
 107        }
 108        return null;
 109      }
 110    };
 111  });
 112  
 113  CodeMirror.defineMIME("text/x-z80", "z80");
 114  CodeMirror.defineMIME("text/x-ez80", { name: "z80", ez80: true });
 115  
 116  });