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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://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("fortran", function() {
  function words(array) {
    var keys = {};
    for (var i = 0; i < array.length; ++i) {
      keys[array[i]] = true;
    }
    return keys;
  }

  var keywords = words([
                  "abstract", "accept",
"allocatable", "allocate",
                  "array", "assign",
"asynchronous", "backspace",
                  "bind", "block", "byte",
"call", "case",
                  "class", "close", "common",
"contains",
                  "continue", "cycle",
"data", "deallocate",
                  "decode", "deferred",
"dimension", "do",
                  "elemental", "else",
"encode", "end",
                  "endif", "entry",
"enumerator", "equivalence",
                  "exit", "external",
"extrinsic", "final",
                  "forall", "format",
"function", "generic",
                  "go", "goto", "if",
"implicit", "import", "include",
                  "inquire", "intent",
"interface", "intrinsic",
                  "module", "namelist",
"non_intrinsic",
                  "non_overridable", "none",
"nopass",
                  "nullify", "open",
"optional", "options",
                  "parameter", "pass",
"pause", "pointer",
                  "print", "private",
"program", "protected",
                  "public", "pure", "read",
"recursive", "result",
                  "return", "rewind", "save",
"select", "sequence",
                  "stop", "subroutine",
"target", "then", "to", "type",
                  "use", "value", "volatile",
"where", "while",
                  "write"]);
  var builtins = words(["abort", "abs",
"access", "achar", "acos",
                          "adjustl", "adjustr",
"aimag", "aint", "alarm",
                          "all", "allocated",
"alog", "amax", "amin",
                          "amod", "and",
"anint", "any", "asin",
                          "associated", "atan",
"besj", "besjn", "besy",
                          "besyn", "bit_size",
"btest", "cabs", "ccos",
                          "ceiling", "cexp",
"char", "chdir", "chmod",
                          "clog", "cmplx",
"command_argument_count",
                          "complex", "conjg",
"cos", "cosh", "count",
                          "cpu_time", "cshift",
"csin", "csqrt", "ctime",
                          "c_funloc", "c_loc",
"c_associated", "c_null_ptr",
                          "c_null_funptr",
"c_f_pointer", "c_null_char",
                          "c_alert", "c_backspace",
"c_form_feed",
                          "c_new_line",
"c_carriage_return",
                          "c_horizontal_tab",
"c_vertical_tab", "dabs",
                          "dacos", "dasin",
"datan", "date_and_time",
                          "dbesj", "dbesj",
"dbesjn", "dbesy", "dbesy",
                          "dbesyn", "dble",
"dcos", "dcosh", "ddim", "derf",
                          "derfc", "dexp",
"digits", "dim", "dint", "dlog",
                          "dlog", "dmax",
"dmin", "dmod", "dnint",
                          "dot_product", "dprod",
"dsign", "dsinh",
                          "dsin", "dsqrt",
"dtanh", "dtan", "dtime",
                          "eoshift", "epsilon",
"erf", "erfc", "etime",
                          "exit", "exp",
"exponent", "extends_type_of",
                          "fdate", "fget",
"fgetc", "float", "floor",
                          "flush", "fnum",
"fputc", "fput", "fraction",
                          "fseek", "fstat",
"ftell", "gerror", "getarg",
                          "get_command",
"get_command_argument",
                          "get_environment_variable",
"getcwd",
                          "getenv", "getgid",
"getlog", "getpid",
                          "getuid", "gmtime",
"hostnm", "huge", "iabs",
                          "iachar", "iand",
"iargc", "ibclr", "ibits",
                          "ibset", "ichar",
"idate", "idim", "idint",
                          "idnint", "ieor",
"ierrno", "ifix", "imag",
                          "imagpart", "index",
"int", "ior", "irand",
                          "isatty", "ishft",
"ishftc", "isign",
                          "iso_c_binding",
"is_iostat_end", "is_iostat_eor",
                          "itime", "kill",
"kind", "lbound", "len",
"len_trim",
                          "lge", "lgt",
"link", "lle", "llt", "lnblnk",
"loc",
                          "log", "logical",
"long", "lshift", "lstat", "ltime",
                          "matmul", "max",
"maxexponent", "maxloc", "maxval",
                          "mclock", "merge",
"move_alloc", "min", "minexponent",
                          "minloc", "minval",
"mod", "modulo", "mvbits",
                          "nearest", "new_line",
"nint", "not", "or", "pack",
                          "perror", "precision",
"present", "product", "radix",
                          "rand", "random_number",
"random_seed", "range",
                          "real", "realpart",
"rename", "repeat", "reshape",
                          "rrspacing", "rshift",
"same_type_as", "scale",
                          "scan", "second",
"selected_int_kind",
                          "selected_real_kind",
"set_exponent", "shape",
                          "short", "sign",
"signal", "sinh", "sin", "sleep",
                          "sngl", "spacing",
"spread", "sqrt", "srand", "stat",
                          "sum", "symlnk",
"system", "system_clock", "tan",
                          "tanh", "time",
"tiny", "transfer", "transpose",
                          "trim", "ttynam",
"ubound", "umask", "unlink",
                          "unpack", "verify",
"xor", "zabs", "zcos", "zexp",
                          "zlog", "zsin",
"zsqrt"]);

    var dataTypes =  words(["c_bool", "c_char",
"c_double", "c_double_complex",
                     "c_float", "c_float_complex",
"c_funptr", "c_int",
                     "c_int16_t", "c_int32_t",
"c_int64_t", "c_int8_t",
                     "c_int_fast16_t",
"c_int_fast32_t", "c_int_fast64_t",
                     "c_int_fast8_t",
"c_int_least16_t", "c_int_least32_t",
                     "c_int_least64_t",
"c_int_least8_t", "c_intmax_t",
                     "c_intptr_t", "c_long",
"c_long_double",
                     "c_long_double_complex",
"c_long_long", "c_ptr",
                     "c_short", "c_signed_char",
"c_size_t", "character",
                     "complex", "double",
"integer", "logical", "real"]);
  var isOperatorChar = /[+\-*&=<>\/\:]/;
  var litOperator = new
RegExp("(\.and\.|\.or\.|\.eq\.|\.lt\.|\.le\.|\.gt\.|\.ge\.|\.ne\.|\.not\.|\.eqv\.|\.neqv\.)",
"i");

  function tokenBase(stream, state) {

    if (stream.match(litOperator)){
        return 'operator';
    }

    var ch = stream.next();
    if (ch == "!") {
      stream.skipToEnd();
      return "comment";
    }
    if (ch == '"' || ch == "'") {
      state.tokenize = tokenString(ch);
      return state.tokenize(stream, state);
    }
    if (/[\[\]\(\),]/.test(ch)) {
      return null;
    }
    if (/\d/.test(ch)) {
      stream.eatWhile(/[\w\.]/);
      return "number";
    }
    if (isOperatorChar.test(ch)) {
      stream.eatWhile(isOperatorChar);
      return "operator";
    }
    stream.eatWhile(/[\w\$_]/);
    var word = stream.current().toLowerCase();

    if (keywords.hasOwnProperty(word)){
            return 'keyword';
    }
    if (builtins.hasOwnProperty(word) || dataTypes.hasOwnProperty(word)) {
            return 'builtin';
    }
    return "variable";
  }

  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) state.tokenize = null;
      return "string";
    };
  }

  // Interface

  return {
    startState: function() {
      return {tokenize: null};
    },

    token: function(stream, state) {
      if (stream.eatSpace()) return null;
      var style = (state.tokenize || tokenBase)(stream, state);
      if (style == "comment" || style == "meta") return
style;
      return style;
    }
  };
});

CodeMirror.defineMIME("text/x-fortran", "fortran");

});