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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 /*
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5 This MUMPS Language script was constructed using vbscript.js as a template.
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6 */
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7
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8 (function(mod) {
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9 if (typeof exports == "object" && typeof module == "object") // CommonJS
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10 mod(require("../../lib/codemirror"));
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11 else if (typeof define == "function" && define.amd) // AMD
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12 define(["../../lib/codemirror"], mod);
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13 else // Plain browser env
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14 mod(CodeMirror);
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15 })(function(CodeMirror) {
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16 "use strict";
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17
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18 CodeMirror.defineMode("mumps", function() {
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19 function wordRegexp(words) {
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20 return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
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21 }
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22
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23 var singleOperators = new RegExp("^[\\+\\-\\*/&#!_?\\\\<>=\\'\\[\\]]");
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24 var doubleOperators = new RegExp("^(('=)|(<=)|(>=)|('>)|('<)|([[)|(]])|(^$))");
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25 var singleDelimiters = new RegExp("^[\\.,:]");
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26 var brackets = new RegExp("[()]");
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27 var identifiers = new RegExp("^[%A-Za-z][A-Za-z0-9]*");
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28 var commandKeywords = ["break","close","do","else","for","goto", "halt", "hang", "if", "job","kill","lock","merge","new","open", "quit", "read", "set", "tcommit", "trollback", "tstart", "use", "view", "write", "xecute", "b","c","d","e","f","g", "h", "i", "j","k","l","m","n","o", "q", "r", "s", "tc", "tro", "ts", "u", "v", "w", "x"];
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29 // The following list includes intrinsic functions _and_ special variables
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30 var intrinsicFuncsWords = ["\\$ascii", "\\$char", "\\$data", "\\$ecode", "\\$estack", "\\$etrap", "\\$extract", "\\$find", "\\$fnumber", "\\$get", "\\$horolog", "\\$io", "\\$increment", "\\$job", "\\$justify", "\\$length", "\\$name", "\\$next", "\\$order", "\\$piece", "\\$qlength", "\\$qsubscript", "\\$query", "\\$quit", "\\$random", "\\$reverse", "\\$select", "\\$stack", "\\$test", "\\$text", "\\$translate", "\\$view", "\\$x", "\\$y", "\\$a", "\\$c", "\\$d", "\\$e", "\\$ec", "\\$es", "\\$et", "\\$f", "\\$fn", "\\$g", "\\$h", "\\$i", "\\$j", "\\$l", "\\$n", "\\$na", "\\$o", "\\$p", "\\$q", "\\$ql", "\\$qs", "\\$r", "\\$re", "\\$s", "\\$st", "\\$t", "\\$tr", "\\$v", "\\$z"];
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31 var intrinsicFuncs = wordRegexp(intrinsicFuncsWords);
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32 var command = wordRegexp(commandKeywords);
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33
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34 function tokenBase(stream, state) {
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35 if (stream.sol()) {
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36 state.label = true;
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37 state.commandMode = 0;
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38 }
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39
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40 // The <space> character has meaning in MUMPS. Ignoring consecutive
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41 // spaces would interfere with interpreting whether the next non-space
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42 // character belongs to the command or argument context.
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43
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44 // Examine each character and update a mode variable whose interpretation is:
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45 // >0 => command 0 => argument <0 => command post-conditional
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46 var ch = stream.peek();
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47
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48 if (ch == " " || ch == "\t") { // Pre-process <space>
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49 state.label = false;
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50 if (state.commandMode == 0)
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51 state.commandMode = 1;
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52 else if ((state.commandMode < 0) || (state.commandMode == 2))
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53 state.commandMode = 0;
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54 } else if ((ch != ".") && (state.commandMode > 0)) {
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55 if (ch == ":")
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56 state.commandMode = -1; // SIS - Command post-conditional
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57 else
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58 state.commandMode = 2;
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59 }
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60
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61 // Do not color parameter list as line tag
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62 if ((ch === "(") || (ch === "\u0009"))
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63 state.label = false;
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64
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65 // MUMPS comment starts with ";"
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66 if (ch === ";") {
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67 stream.skipToEnd();
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68 return "comment";
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69 }
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70
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71 // Number Literals // SIS/RLM - MUMPS permits canonic number followed by concatenate operator
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72 if (stream.match(/^[-+]?\d+(\.\d+)?([eE][-+]?\d+)?/))
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73 return "number";
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74
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75 // Handle Strings
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76 if (ch == '"') {
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77 if (stream.skipTo('"')) {
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78 stream.next();
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79 return "string";
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80 } else {
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81 stream.skipToEnd();
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82 return "error";
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83 }
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84 }
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85
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86 // Handle operators and Delimiters
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87 if (stream.match(doubleOperators) || stream.match(singleOperators))
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88 return "operator";
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89
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90 // Prevents leading "." in DO block from falling through to error
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91 if (stream.match(singleDelimiters))
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92 return null;
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93
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94 if (brackets.test(ch)) {
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95 stream.next();
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96 return "bracket";
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97 }
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98
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99 if (state.commandMode > 0 && stream.match(command))
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100 return "variable-2";
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101
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102 if (stream.match(intrinsicFuncs))
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103 return "builtin";
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104
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105 if (stream.match(identifiers))
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106 return "variable";
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107
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108 // Detect dollar-sign when not a documented intrinsic function
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109 // "^" may introduce a GVN or SSVN - Color same as function
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110 if (ch === "$" || ch === "^") {
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111 stream.next();
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112 return "builtin";
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113 }
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114
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115 // MUMPS Indirection
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116 if (ch === "@") {
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117 stream.next();
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118 return "string-2";
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119 }
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120
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121 if (/[\w%]/.test(ch)) {
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122 stream.eatWhile(/[\w%]/);
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123 return "variable";
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124 }
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125
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126 // Handle non-detected items
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127 stream.next();
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128 return "error";
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129 }
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130
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131 return {
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132 startState: function() {
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133 return {
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134 label: false,
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135 commandMode: 0
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136 };
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137 },
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138
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139 token: function(stream, state) {
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140 var style = tokenBase(stream, state);
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141 if (state.label) return "tag";
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142 return style;
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143 }
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144 };
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145 });
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146
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147 CodeMirror.defineMIME("text/x-mumps", "mumps");
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148 });
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