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

/**

* Smarty 2 and 3 mode.
*/

(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(“smarty”, function(config) {

"use strict";

// our default settings; check to see if they're overridden
var settings = {
  rightDelimiter: '}',
  leftDelimiter: '{',
  smartyVersion: 2 // for backward compatibility
};
if (config.hasOwnProperty("leftDelimiter")) {
  settings.leftDelimiter = config.leftDelimiter;
}
if (config.hasOwnProperty("rightDelimiter")) {
  settings.rightDelimiter = config.rightDelimiter;
}
if (config.hasOwnProperty("smartyVersion") && config.smartyVersion === 3) {
  settings.smartyVersion = 3;
}

var keyFunctions = ["debug", "extends", "function", "include", "literal"];
var last;
var regs = {
  operatorChars: /[+\-*&%=<>!?]/,
  validIdentifier: /[a-zA-Z0-9_]/,
  stringChar: /['"]/
};

var helpers = {
  cont: function(style, lastType) {
    last = lastType;
    return style;
  },
  chain: function(stream, state, parser) {
    state.tokenize = parser;
    return parser(stream, state);
  }
};

// our various parsers
var parsers = {

  // the main tokenizer
  tokenizer: function(stream, state) {
    if (stream.match(settings.leftDelimiter, true)) {
      if (stream.eat("*")) {
        return helpers.chain(stream, state, parsers.inBlock("comment", "*" + settings.rightDelimiter));
      } else {
        // Smarty 3 allows { and } surrounded by whitespace to NOT slip into Smarty mode
        state.depth++;
        var isEol = stream.eol();
        var isFollowedByWhitespace = /\s/.test(stream.peek());
        if (settings.smartyVersion === 3 && settings.leftDelimiter === "{" && (isEol || isFollowedByWhitespace)) {
          state.depth--;
          return null;
        } else {
          state.tokenize = parsers.smarty;
          last = "startTag";
          return "tag";
        }
      }
    } else {
      stream.next();
      return null;
    }
  },

  // parsing Smarty content
  smarty: function(stream, state) {
    if (stream.match(settings.rightDelimiter, true)) {
      if (settings.smartyVersion === 3) {
        state.depth--;
        if (state.depth <= 0) {
          state.tokenize = parsers.tokenizer;
        }
      } else {
        state.tokenize = parsers.tokenizer;
      }
      return helpers.cont("tag", null);
    }

    if (stream.match(settings.leftDelimiter, true)) {
      state.depth++;
      return helpers.cont("tag", "startTag");
    }

    var ch = stream.next();
    if (ch == "$") {
      stream.eatWhile(regs.validIdentifier);
      return helpers.cont("variable-2", "variable");
    } else if (ch == "|") {
      return helpers.cont("operator", "pipe");
    } else if (ch == ".") {
      return helpers.cont("operator", "property");
    } else if (regs.stringChar.test(ch)) {
      state.tokenize = parsers.inAttribute(ch);
      return helpers.cont("string", "string");
    } else if (regs.operatorChars.test(ch)) {
      stream.eatWhile(regs.operatorChars);
      return helpers.cont("operator", "operator");
    } else if (ch == "[" || ch == "]") {
      return helpers.cont("bracket", "bracket");
    } else if (ch == "(" || ch == ")") {
      return helpers.cont("bracket", "operator");
    } else if (/\d/.test(ch)) {
      stream.eatWhile(/\d/);
      return helpers.cont("number", "number");
    } else {

      if (state.last == "variable") {
        if (ch == "@") {
          stream.eatWhile(regs.validIdentifier);
          return helpers.cont("property", "property");
        } else if (ch == "|") {
          stream.eatWhile(regs.validIdentifier);
          return helpers.cont("qualifier", "modifier");
        }
      } else if (state.last == "pipe") {
        stream.eatWhile(regs.validIdentifier);
        return helpers.cont("qualifier", "modifier");
      } else if (state.last == "whitespace") {
        stream.eatWhile(regs.validIdentifier);
        return helpers.cont("attribute", "modifier");
      } if (state.last == "property") {
        stream.eatWhile(regs.validIdentifier);
        return helpers.cont("property", null);
      } else if (/\s/.test(ch)) {
        last = "whitespace";
        return null;
      }

      var str = "";
      if (ch != "/") {
        str += ch;
      }
      var c = null;
      while (c = stream.eat(regs.validIdentifier)) {
        str += c;
      }
      for (var i=0, j=keyFunctions.length; i<j; i++) {
        if (keyFunctions[i] == str) {
          return helpers.cont("keyword", "keyword");
        }
      }
      if (/\s/.test(ch)) {
        return null;
      }
      return helpers.cont("tag", "tag");
    }
  },

  inAttribute: function(quote) {
    return function(stream, state) {
      var prevChar = null;
      var currChar = null;
      while (!stream.eol()) {
        currChar = stream.peek();
        if (stream.next() == quote && prevChar !== '\\') {
          state.tokenize = parsers.smarty;
          break;
        }
        prevChar = currChar;
      }
      return "string";
    };
  },

  inBlock: function(style, terminator) {
    return function(stream, state) {
      while (!stream.eol()) {
        if (stream.match(terminator)) {
          state.tokenize = parsers.tokenizer;
          break;
        }
        stream.next();
      }
      return style;
    };
  }
};

// the public API for CodeMirror
return {
  startState: function() {
    return {
      tokenize: parsers.tokenizer,
      mode: "smarty",
      last: null,
      depth: 0
    };
  },
  token: function(stream, state) {
    var style = state.tokenize(stream, state);
    state.last = last;
    return style;
  },
  electricChars: ""
};

});

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

});