[Summary view] [Print] [Text view]

   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: https://codemirror.net/5/LICENSE
   3  
   4  /**
   5   * Author: Gautam Mehta
   6   * Branched from CodeMirror's Scheme mode
   7   */
   8  (function(mod) {
   9    if (typeof exports == "object" && typeof module == "object") // CommonJS
  10      mod(require("../../lib/codemirror"));
  11    else if (typeof define == "function" && define.amd) // AMD
  12      define(["../../lib/codemirror"], mod);
  13    else // Plain browser env
  14      mod(CodeMirror);
  15  })(function(CodeMirror) {
  16  "use strict";
  17  
  18  CodeMirror.defineMode("cobol", function () {
  19    var BUILTIN = "builtin", COMMENT = "comment", STRING = "string",
  20        ATOM = "atom", NUMBER = "number", KEYWORD = "keyword", MODTAG = "header",
  21        COBOLLINENUM = "def", PERIOD = "link";
  22    function makeKeywords(str) {
  23      var obj = {}, words = str.split(" ");
  24      for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
  25      return obj;
  26    }
  27    var atoms = makeKeywords("TRUE FALSE ZEROES ZEROS ZERO SPACES SPACE LOW-VALUE LOW-VALUES ");
  28    var keywords = makeKeywords(
  29        "ACCEPT ACCESS ACQUIRE ADD ADDRESS " +
  30        "ADVANCING AFTER ALIAS ALL ALPHABET " +
  31        "ALPHABETIC ALPHABETIC-LOWER ALPHABETIC-UPPER ALPHANUMERIC ALPHANUMERIC-EDITED " +
  32        "ALSO ALTER ALTERNATE AND ANY " +
  33        "ARE AREA AREAS ARITHMETIC ASCENDING " +
  34        "ASSIGN AT ATTRIBUTE AUTHOR AUTO " +
  35        "AUTO-SKIP AUTOMATIC B-AND B-EXOR B-LESS " +
  36        "B-NOT B-OR BACKGROUND-COLOR BACKGROUND-COLOUR BEEP " +
  37        "BEFORE BELL BINARY BIT BITS " +
  38        "BLANK BLINK BLOCK BOOLEAN BOTTOM " +
  39        "BY CALL CANCEL CD CF " +
  40        "CH CHARACTER CHARACTERS CLASS CLOCK-UNITS " +
  41        "CLOSE COBOL CODE CODE-SET COL " +
  42        "COLLATING COLUMN COMMA COMMIT COMMITMENT " +
  43        "COMMON COMMUNICATION COMP COMP-0 COMP-1 " +
  44        "COMP-2 COMP-3 COMP-4 COMP-5 COMP-6 " +
  45        "COMP-7 COMP-8 COMP-9 COMPUTATIONAL COMPUTATIONAL-0 " +
  46        "COMPUTATIONAL-1 COMPUTATIONAL-2 COMPUTATIONAL-3 COMPUTATIONAL-4 COMPUTATIONAL-5 " +
  47        "COMPUTATIONAL-6 COMPUTATIONAL-7 COMPUTATIONAL-8 COMPUTATIONAL-9 COMPUTE " +
  48        "CONFIGURATION CONNECT CONSOLE CONTAINED CONTAINS " +
  49        "CONTENT CONTINUE CONTROL CONTROL-AREA CONTROLS " +
  50        "CONVERTING COPY CORR CORRESPONDING COUNT " +
  51        "CRT CRT-UNDER CURRENCY CURRENT CURSOR " +
  52        "DATA DATE DATE-COMPILED DATE-WRITTEN DAY " +
  53        "DAY-OF-WEEK DB DB-ACCESS-CONTROL-KEY DB-DATA-NAME DB-EXCEPTION " +
  54        "DB-FORMAT-NAME DB-RECORD-NAME DB-SET-NAME DB-STATUS DBCS " +
  55        "DBCS-EDITED DE DEBUG-CONTENTS DEBUG-ITEM DEBUG-LINE " +
  56        "DEBUG-NAME DEBUG-SUB-1 DEBUG-SUB-2 DEBUG-SUB-3 DEBUGGING " +
  57        "DECIMAL-POINT DECLARATIVES DEFAULT DELETE DELIMITED " +
  58        "DELIMITER DEPENDING DESCENDING DESCRIBED DESTINATION " +
  59        "DETAIL DISABLE DISCONNECT DISPLAY DISPLAY-1 " +
  60        "DISPLAY-2 DISPLAY-3 DISPLAY-4 DISPLAY-5 DISPLAY-6 " +
  61        "DISPLAY-7 DISPLAY-8 DISPLAY-9 DIVIDE DIVISION " +
  62        "DOWN DROP DUPLICATE DUPLICATES DYNAMIC " +
  63        "EBCDIC EGI EJECT ELSE EMI " +
  64        "EMPTY EMPTY-CHECK ENABLE END END. END-ACCEPT END-ACCEPT. " +
  65        "END-ADD END-CALL END-COMPUTE END-DELETE END-DISPLAY " +
  66        "END-DIVIDE END-EVALUATE END-IF END-INVOKE END-MULTIPLY " +
  67        "END-OF-PAGE END-PERFORM END-READ END-RECEIVE END-RETURN " +
  68        "END-REWRITE END-SEARCH END-START END-STRING END-SUBTRACT " +
  69        "END-UNSTRING END-WRITE END-XML ENTER ENTRY " +
  70        "ENVIRONMENT EOP EQUAL EQUALS ERASE " +
  71        "ERROR ESI EVALUATE EVERY EXCEEDS " +
  72        "EXCEPTION EXCLUSIVE EXIT EXTEND EXTERNAL " +
  73        "EXTERNALLY-DESCRIBED-KEY FD FETCH FILE FILE-CONTROL " +
  74        "FILE-STREAM FILES FILLER FINAL FIND " +
  75        "FINISH FIRST FOOTING FOR FOREGROUND-COLOR " +
  76        "FOREGROUND-COLOUR FORMAT FREE FROM FULL " +
  77        "FUNCTION GENERATE GET GIVING GLOBAL " +
  78        "GO GOBACK GREATER GROUP HEADING " +
  79        "HIGH-VALUE HIGH-VALUES HIGHLIGHT I-O I-O-CONTROL " +
  80        "ID IDENTIFICATION IF IN INDEX " +
  81        "INDEX-1 INDEX-2 INDEX-3 INDEX-4 INDEX-5 " +
  82        "INDEX-6 INDEX-7 INDEX-8 INDEX-9 INDEXED " +
  83        "INDIC INDICATE INDICATOR INDICATORS INITIAL " +
  84        "INITIALIZE INITIATE INPUT INPUT-OUTPUT INSPECT " +
  85        "INSTALLATION INTO INVALID INVOKE IS " +
  86        "JUST JUSTIFIED KANJI KEEP KEY " +
  87        "LABEL LAST LD LEADING LEFT " +
  88        "LEFT-JUSTIFY LENGTH LENGTH-CHECK LESS LIBRARY " +
  89        "LIKE LIMIT LIMITS LINAGE LINAGE-COUNTER " +
  90        "LINE LINE-COUNTER LINES LINKAGE LOCAL-STORAGE " +
  91        "LOCALE LOCALLY LOCK " +
  92        "MEMBER MEMORY MERGE MESSAGE METACLASS " +
  93        "MODE MODIFIED MODIFY MODULES MOVE " +
  94        "MULTIPLE MULTIPLY NATIONAL NATIVE NEGATIVE " +
  95        "NEXT NO NO-ECHO NONE NOT " +
  96        "NULL NULL-KEY-MAP NULL-MAP NULLS NUMBER " +
  97        "NUMERIC NUMERIC-EDITED OBJECT OBJECT-COMPUTER OCCURS " +
  98        "OF OFF OMITTED ON ONLY " +
  99        "OPEN OPTIONAL OR ORDER ORGANIZATION " +
 100        "OTHER OUTPUT OVERFLOW OWNER PACKED-DECIMAL " +
 101        "PADDING PAGE PAGE-COUNTER PARSE PERFORM " +
 102        "PF PH PIC PICTURE PLUS " +
 103        "POINTER POSITION POSITIVE PREFIX PRESENT " +
 104        "PRINTING PRIOR PROCEDURE PROCEDURE-POINTER PROCEDURES " +
 105        "PROCEED PROCESS PROCESSING PROGRAM PROGRAM-ID " +
 106        "PROMPT PROTECTED PURGE QUEUE QUOTE " +
 107        "QUOTES RANDOM RD READ READY " +
 108        "REALM RECEIVE RECONNECT RECORD RECORD-NAME " +
 109        "RECORDS RECURSIVE REDEFINES REEL REFERENCE " +
 110        "REFERENCE-MONITOR REFERENCES RELATION RELATIVE RELEASE " +
 111        "REMAINDER REMOVAL RENAMES REPEATED REPLACE " +
 112        "REPLACING REPORT REPORTING REPORTS REPOSITORY " +
 113        "REQUIRED RERUN RESERVE RESET RETAINING " +
 114        "RETRIEVAL RETURN RETURN-CODE RETURNING REVERSE-VIDEO " +
 115        "REVERSED REWIND REWRITE RF RH " +
 116        "RIGHT RIGHT-JUSTIFY ROLLBACK ROLLING ROUNDED " +
 117        "RUN SAME SCREEN SD SEARCH " +
 118        "SECTION SECURE SECURITY SEGMENT SEGMENT-LIMIT " +
 119        "SELECT SEND SENTENCE SEPARATE SEQUENCE " +
 120        "SEQUENTIAL SET SHARED SIGN SIZE " +
 121        "SKIP1 SKIP2 SKIP3 SORT SORT-MERGE " +
 122        "SORT-RETURN SOURCE SOURCE-COMPUTER SPACE-FILL " +
 123        "SPECIAL-NAMES STANDARD STANDARD-1 STANDARD-2 " +
 124        "START STARTING STATUS STOP STORE " +
 125        "STRING SUB-QUEUE-1 SUB-QUEUE-2 SUB-QUEUE-3 SUB-SCHEMA " +
 126        "SUBFILE SUBSTITUTE SUBTRACT SUM SUPPRESS " +
 127        "SYMBOLIC SYNC SYNCHRONIZED SYSIN SYSOUT " +
 128        "TABLE TALLYING TAPE TENANT TERMINAL " +
 129        "TERMINATE TEST TEXT THAN THEN " +
 130        "THROUGH THRU TIME TIMES TITLE " +
 131        "TO TOP TRAILING TRAILING-SIGN TRANSACTION " +
 132        "TYPE TYPEDEF UNDERLINE UNEQUAL UNIT " +
 133        "UNSTRING UNTIL UP UPDATE UPON " +
 134        "USAGE USAGE-MODE USE USING VALID " +
 135        "VALIDATE VALUE VALUES VARYING VLR " +
 136        "WAIT WHEN WHEN-COMPILED WITH WITHIN " +
 137        "WORDS WORKING-STORAGE WRITE XML XML-CODE " +
 138        "XML-EVENT XML-NTEXT XML-TEXT ZERO ZERO-FILL " );
 139  
 140    var builtins = makeKeywords("- * ** / + < <= = > >= ");
 141    var tests = {
 142      digit: /\d/,
 143      digit_or_colon: /[\d:]/,
 144      hex: /[0-9a-f]/i,
 145      sign: /[+-]/,
 146      exponent: /e/i,
 147      keyword_char: /[^\s\(\[\;\)\]]/,
 148      symbol: /[\w*+\-]/
 149    };
 150    function isNumber(ch, stream){
 151      // hex
 152      if ( ch === '0' && stream.eat(/x/i) ) {
 153        stream.eatWhile(tests.hex);
 154        return true;
 155      }
 156      // leading sign
 157      if ( ( ch == '+' || ch == '-' ) && ( tests.digit.test(stream.peek()) ) ) {
 158        stream.eat(tests.sign);
 159        ch = stream.next();
 160      }
 161      if ( tests.digit.test(ch) ) {
 162        stream.eat(ch);
 163        stream.eatWhile(tests.digit);
 164        if ( '.' == stream.peek()) {
 165          stream.eat('.');
 166          stream.eatWhile(tests.digit);
 167        }
 168        if ( stream.eat(tests.exponent) ) {
 169          stream.eat(tests.sign);
 170          stream.eatWhile(tests.digit);
 171        }
 172        return true;
 173      }
 174      return false;
 175    }
 176    return {
 177      startState: function () {
 178        return {
 179          indentStack: null,
 180          indentation: 0,
 181          mode: false
 182        };
 183      },
 184      token: function (stream, state) {
 185        if (state.indentStack == null && stream.sol()) {
 186          // update indentation, but only if indentStack is empty
 187          state.indentation = 6 ; //stream.indentation();
 188        }
 189        // skip spaces
 190        if (stream.eatSpace()) {
 191          return null;
 192        }
 193        var returnType = null;
 194        switch(state.mode){
 195        case "string": // multi-line string parsing mode
 196          var next = false;
 197          while ((next = stream.next()) != null) {
 198            if ((next == "\"" || next == "\'") && !stream.match(/['"]/, false)) {
 199              state.mode = false;
 200              break;
 201            }
 202          }
 203          returnType = STRING; // continue on in string mode
 204          break;
 205        default: // default parsing mode
 206          var ch = stream.next();
 207          var col = stream.column();
 208          if (col >= 0 && col <= 5) {
 209            returnType = COBOLLINENUM;
 210          } else if (col >= 72 && col <= 79) {
 211            stream.skipToEnd();
 212            returnType = MODTAG;
 213          } else if (ch == "*" && col == 6) { // comment
 214            stream.skipToEnd(); // rest of the line is a comment
 215            returnType = COMMENT;
 216          } else if (ch == "\"" || ch == "\'") {
 217            state.mode = "string";
 218            returnType = STRING;
 219          } else if (ch == "'" && !( tests.digit_or_colon.test(stream.peek()) )) {
 220            returnType = ATOM;
 221          } else if (ch == ".") {
 222            returnType = PERIOD;
 223          } else if (isNumber(ch,stream)){
 224            returnType = NUMBER;
 225          } else {
 226            if (stream.current().match(tests.symbol)) {
 227              while (col < 71) {
 228                if (stream.eat(tests.symbol) === undefined) {
 229                  break;
 230                } else {
 231                  col++;
 232                }
 233              }
 234            }
 235            if (keywords && keywords.propertyIsEnumerable(stream.current().toUpperCase())) {
 236              returnType = KEYWORD;
 237            } else if (builtins && builtins.propertyIsEnumerable(stream.current().toUpperCase())) {
 238              returnType = BUILTIN;
 239            } else if (atoms && atoms.propertyIsEnumerable(stream.current().toUpperCase())) {
 240              returnType = ATOM;
 241            } else returnType = null;
 242          }
 243        }
 244        return returnType;
 245      },
 246      indent: function (state) {
 247        if (state.indentStack == null) return state.indentation;
 248        return state.indentStack.indent;
 249      }
 250    };
 251  });
 252  
 253  CodeMirror.defineMIME("text/x-cobol", "cobol");
 254  
 255  });