Subversion-Projekte lars-tiefland.ci

// CodeMirror, copyright (c) by Marijn Haverbeke and others

// Distributed under an MIT license: http://codemirror.net/LICENSE

/*

 *      Pig Latin Mode for CodeMirror 2

 *      @author Prasanth Jayachandran

 *      @link   https://github.com/prasanthj/pig-codemirror-2

 *  This implementation is adapted from PL/SQL mode in CodeMirror 2.

 */

(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("pig", function(_config, parserConfig) {

  var keywords = parserConfig.keywords,

  builtins = parserConfig.builtins,

  types = parserConfig.types,

  multiLineStrings = parserConfig.multiLineStrings;

  var isOperatorChar = /[*+\-%<>=&?:\/!|]/;

  function chain(stream, state, f) {

    state.tokenize = f;

    return f(stream, state);

  }

  function tokenComment(stream, state) {

    var isEnd = false;

    var ch;

    while(ch = stream.next()) {

      if(ch == "/" && isEnd) {

        state.tokenize = tokenBase;

        break;

      }

      isEnd = (ch == "*");

    }

    return "comment";

  }

  function tokenString(quote) {

    return function(stream, state) {

      var escaped = false, next, end = false;

      while((next = stream.next()) != null) {

        if (next == quote && !escaped) {

          end = true; break;

        }

        escaped = !escaped && next == "\\";

      }

      if (end || !(escaped || multiLineStrings))

        state.tokenize = tokenBase;

      return "error";

    };

  }

  function tokenBase(stream, state) {

    var ch = stream.next();

    // is a start of string?

    if (ch == '"' || ch == "'")

      return chain(stream, state, tokenString(ch));

    // is it one of the special chars

    else if(/[\[\]{}\(\),;\.]/.test(ch))

      return null;

    // is it a number?

    else if(/\d/.test(ch)) {

      stream.eatWhile(/[\w\.]/);

      return "number";

    }

    // multi line comment or operator

    else if (ch == "/") {

      if (stream.eat("*")) {

        return chain(stream, state, tokenComment);

      }

      else {

        stream.eatWhile(isOperatorChar);

        return "operator";

      }

    }

    // single line comment or operator

    else if (ch=="-") {

      if(stream.eat("-")){

        stream.skipToEnd();

        return "comment";

      }

      else {

        stream.eatWhile(isOperatorChar);

        return "operator";

      }

    }

    // is it an operator

    else if (isOperatorChar.test(ch)) {

      stream.eatWhile(isOperatorChar);

      return "operator";

    }

    else {

      // get the while word

      stream.eatWhile(/[\w\$_]/);

      // is it one of the listed keywords?

      if (keywords && keywords.propertyIsEnumerable(stream.current().toUpperCase())) {

        //keywords can be used as variables like flatten(group), group.$0 etc..

        if (!stream.eat(")") && !stream.eat("."))

          return "keyword";

      }

      // is it one of the builtin functions?

      if (builtins && builtins.propertyIsEnumerable(stream.current().toUpperCase()))

        return "variable-2";

      // is it one of the listed types?

      if (types && types.propertyIsEnumerable(stream.current().toUpperCase()))

        return "variable-3";

      // default is a 'variable'

      return "variable";

    }

  }

  // Interface

  return {

    startState: function() {

      return {

        tokenize: tokenBase,

        startOfLine: true

      };

    },

    token: function(stream, state) {

      if(stream.eatSpace()) return null;

      var style = state.tokenize(stream, state);

      return style;

    }

  };

});

(function() {

  function keywords(str) {

    var obj = {}, words = str.split(" ");

    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;

    return obj;

  }

  // builtin funcs taken from trunk revision 1303237

  var pBuiltins = "ABS ACOS ARITY ASIN ATAN AVG BAGSIZE BINSTORAGE BLOOM BUILDBLOOM CBRT CEIL "

    + "CONCAT COR COS COSH COUNT COUNT_STAR COV CONSTANTSIZE CUBEDIMENSIONS DIFF DISTINCT DOUBLEABS "

    + "DOUBLEAVG DOUBLEBASE DOUBLEMAX DOUBLEMIN DOUBLEROUND DOUBLESUM EXP FLOOR FLOATABS FLOATAVG "

    + "FLOATMAX FLOATMIN FLOATROUND FLOATSUM GENERICINVOKER INDEXOF INTABS INTAVG INTMAX INTMIN "

    + "INTSUM INVOKEFORDOUBLE INVOKEFORFLOAT INVOKEFORINT INVOKEFORLONG INVOKEFORSTRING INVOKER "

    + "ISEMPTY JSONLOADER JSONMETADATA JSONSTORAGE LAST_INDEX_OF LCFIRST LOG LOG10 LOWER LONGABS "

    + "LONGAVG LONGMAX LONGMIN LONGSUM MAX MIN MAPSIZE MONITOREDUDF NONDETERMINISTIC OUTPUTSCHEMA  "

    + "PIGSTORAGE PIGSTREAMING RANDOM REGEX_EXTRACT REGEX_EXTRACT_ALL REPLACE ROUND SIN SINH SIZE "

    + "SQRT STRSPLIT SUBSTRING SUM STRINGCONCAT STRINGMAX STRINGMIN STRINGSIZE TAN TANH TOBAG "

    + "TOKENIZE TOMAP TOP TOTUPLE TRIM TEXTLOADER TUPLESIZE UCFIRST UPPER UTF8STORAGECONVERTER ";

  // taken from QueryLexer.g

  var pKeywords = "VOID IMPORT RETURNS DEFINE LOAD FILTER FOREACH ORDER CUBE DISTINCT COGROUP "

    + "JOIN CROSS UNION SPLIT INTO IF OTHERWISE ALL AS BY USING INNER OUTER ONSCHEMA PARALLEL "

    + "PARTITION GROUP AND OR NOT GENERATE FLATTEN ASC DESC IS STREAM THROUGH STORE MAPREDUCE "

    + "SHIP CACHE INPUT OUTPUT STDERROR STDIN STDOUT LIMIT SAMPLE LEFT RIGHT FULL EQ GT LT GTE LTE "

    + "NEQ MATCHES TRUE FALSE DUMP";

  // data types

  var pTypes = "BOOLEAN INT LONG FLOAT DOUBLE CHARARRAY BYTEARRAY BAG TUPLE MAP ";

  CodeMirror.defineMIME("text/x-pig", {

    name: "pig",

    builtins: keywords(pBuiltins),

    keywords: keywords(pKeywords),

    types: keywords(pTypes)

  });

  CodeMirror.registerHelper("hintWords", "pig", (pBuiltins + pTypes + pKeywords).split(" "));

}());

});