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comparison .cms/lib/codemirror/mode/scheme/scheme.js @ 0:78edf6b517a0 draft

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author Coffee CMS <info@coffee-cms.ru>
date Fri, 11 Oct 2024 22:40:23 +0000
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-1:000000000000 0:78edf6b517a0
1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
3
4 /**
5 * Author: Koh Zi Han, based on implementation by Koh Zi Chun
6 * Improved by: Jakub T. Jankiewicz
7 */
8
9 (function(mod) {
10 if (typeof exports == "object" && typeof module == "object") // CommonJS
11 mod(require("../../lib/codemirror"));
12 else if (typeof define == "function" && define.amd) // AMD
13 define(["../../lib/codemirror"], mod);
14 else // Plain browser env
15 mod(CodeMirror);
16 })(function(CodeMirror) {
17 "use strict";
18
19 CodeMirror.defineMode("scheme", function () {
20 var BUILTIN = "builtin", COMMENT = "comment", STRING = "string",
21 SYMBOL = "symbol", ATOM = "atom", NUMBER = "number", BRACKET = "bracket";
22 var INDENT_WORD_SKIP = 2;
23
24 function makeKeywords(str) {
25 var obj = {}, words = str.split(" ");
26 for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
27 return obj;
28 }
29
30 var keywords = makeKeywords("λ case-lambda call/cc class cond-expand define-class define-values exit-handler field import inherit init-field interface let*-values let-values let/ec mixin opt-lambda override protect provide public rename require require-for-syntax syntax syntax-case syntax-error unit/sig unless when with-syntax and begin call-with-current-continuation call-with-input-file call-with-output-file case cond define define-syntax define-macro defmacro delay do dynamic-wind else for-each if lambda let let* let-syntax letrec letrec-syntax map or syntax-rules abs acos angle append apply asin assoc assq assv atan boolean? caar cadr call-with-input-file call-with-output-file call-with-values car cdddar cddddr cdr ceiling char->integer char-alphabetic? char-ci<=? char-ci<? char-ci=? char-ci>=? char-ci>? char-downcase char-lower-case? char-numeric? char-ready? char-upcase char-upper-case? char-whitespace? char<=? char<? char=? char>=? char>? char? close-input-port close-output-port complex? cons cos current-input-port current-output-port denominator display eof-object? eq? equal? eqv? eval even? exact->inexact exact? exp expt #f floor force gcd imag-part inexact->exact inexact? input-port? integer->char integer? interaction-environment lcm length list list->string list->vector list-ref list-tail list? load log magnitude make-polar make-rectangular make-string make-vector max member memq memv min modulo negative? newline not null-environment null? number->string number? numerator odd? open-input-file open-output-file output-port? pair? peek-char port? positive? procedure? quasiquote quote quotient rational? rationalize read read-char real-part real? remainder reverse round scheme-report-environment set! set-car! set-cdr! sin sqrt string string->list string->number string->symbol string-append string-ci<=? string-ci<? string-ci=? string-ci>=? string-ci>? string-copy string-fill! string-length string-ref string-set! string<=? string<? string=? string>=? string>? string? substring symbol->string symbol? #t tan transcript-off transcript-on truncate values vector vector->list vector-fill! vector-length vector-ref vector-set! with-input-from-file with-output-to-file write write-char zero?");
31 var indentKeys = makeKeywords("define let letrec let* lambda define-macro defmacro let-syntax letrec-syntax let-values let*-values define-syntax syntax-rules define-values when unless");
32
33 function stateStack(indent, type, prev) { // represents a state stack object
34 this.indent = indent;
35 this.type = type;
36 this.prev = prev;
37 }
38
39 function pushStack(state, indent, type) {
40 state.indentStack = new stateStack(indent, type, state.indentStack);
41 }
42
43 function popStack(state) {
44 state.indentStack = state.indentStack.prev;
45 }
46
47 var binaryMatcher = new RegExp(/^(?:[-+]i|[-+][01]+#*(?:\/[01]+#*)?i|[-+]?[01]+#*(?:\/[01]+#*)?@[-+]?[01]+#*(?:\/[01]+#*)?|[-+]?[01]+#*(?:\/[01]+#*)?[-+](?:[01]+#*(?:\/[01]+#*)?)?i|[-+]?[01]+#*(?:\/[01]+#*)?)(?=[()\s;"]|$)/i);
48 var octalMatcher = new RegExp(/^(?:[-+]i|[-+][0-7]+#*(?:\/[0-7]+#*)?i|[-+]?[0-7]+#*(?:\/[0-7]+#*)?@[-+]?[0-7]+#*(?:\/[0-7]+#*)?|[-+]?[0-7]+#*(?:\/[0-7]+#*)?[-+](?:[0-7]+#*(?:\/[0-7]+#*)?)?i|[-+]?[0-7]+#*(?:\/[0-7]+#*)?)(?=[()\s;"]|$)/i);
49 var hexMatcher = new RegExp(/^(?:[-+]i|[-+][\da-f]+#*(?:\/[\da-f]+#*)?i|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?@[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?[-+](?:[\da-f]+#*(?:\/[\da-f]+#*)?)?i|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?)(?=[()\s;"]|$)/i);
50 var decimalMatcher = new RegExp(/^(?:[-+]i|[-+](?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)i|[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)@[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)|[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)[-+](?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)?i|(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*))(?=[()\s;"]|$)/i);
51
52 function isBinaryNumber (stream) {
53 return stream.match(binaryMatcher);
54 }
55
56 function isOctalNumber (stream) {
57 return stream.match(octalMatcher);
58 }
59
60 function isDecimalNumber (stream, backup) {
61 if (backup === true) {
62 stream.backUp(1);
63 }
64 return stream.match(decimalMatcher);
65 }
66
67 function isHexNumber (stream) {
68 return stream.match(hexMatcher);
69 }
70
71 function processEscapedSequence(stream, options) {
72 var next, escaped = false;
73 while ((next = stream.next()) != null) {
74 if (next == options.token && !escaped) {
75
76 options.state.mode = false;
77 break;
78 }
79 escaped = !escaped && next == "\\";
80 }
81 }
82
83 return {
84 startState: function () {
85 return {
86 indentStack: null,
87 indentation: 0,
88 mode: false,
89 sExprComment: false,
90 sExprQuote: false
91 };
92 },
93
94 token: function (stream, state) {
95 if (state.indentStack == null && stream.sol()) {
96 // update indentation, but only if indentStack is empty
97 state.indentation = stream.indentation();
98 }
99
100 // skip spaces
101 if (stream.eatSpace()) {
102 return null;
103 }
104 var returnType = null;
105
106 switch(state.mode){
107 case "string": // multi-line string parsing mode
108 processEscapedSequence(stream, {
109 token: "\"",
110 state: state
111 });
112 returnType = STRING; // continue on in scheme-string mode
113 break;
114 case "symbol": // escape symbol
115 processEscapedSequence(stream, {
116 token: "|",
117 state: state
118 });
119 returnType = SYMBOL; // continue on in scheme-symbol mode
120 break;
121 case "comment": // comment parsing mode
122 var next, maybeEnd = false;
123 while ((next = stream.next()) != null) {
124 if (next == "#" && maybeEnd) {
125
126 state.mode = false;
127 break;
128 }
129 maybeEnd = (next == "|");
130 }
131 returnType = COMMENT;
132 break;
133 case "s-expr-comment": // s-expr commenting mode
134 state.mode = false;
135 if(stream.peek() == "(" || stream.peek() == "["){
136 // actually start scheme s-expr commenting mode
137 state.sExprComment = 0;
138 }else{
139 // if not we just comment the entire of the next token
140 stream.eatWhile(/[^\s\(\)\[\]]/); // eat symbol atom
141 returnType = COMMENT;
142 break;
143 }
144 default: // default parsing mode
145 var ch = stream.next();
146
147 if (ch == "\"") {
148 state.mode = "string";
149 returnType = STRING;
150
151 } else if (ch == "'") {
152 if (stream.peek() == "(" || stream.peek() == "["){
153 if (typeof state.sExprQuote != "number") {
154 state.sExprQuote = 0;
155 } // else already in a quoted expression
156 returnType = ATOM;
157 } else {
158 stream.eatWhile(/[\w_\-!$%&*+\.\/:<=>?@\^~]/);
159 returnType = ATOM;
160 }
161 } else if (ch == '|') {
162 state.mode = "symbol";
163 returnType = SYMBOL;
164 } else if (ch == '#') {
165 if (stream.eat("|")) { // Multi-line comment
166 state.mode = "comment"; // toggle to comment mode
167 returnType = COMMENT;
168 } else if (stream.eat(/[tf]/i)) { // #t/#f (atom)
169 returnType = ATOM;
170 } else if (stream.eat(';')) { // S-Expr comment
171 state.mode = "s-expr-comment";
172 returnType = COMMENT;
173 } else {
174 var numTest = null, hasExactness = false, hasRadix = true;
175 if (stream.eat(/[ei]/i)) {
176 hasExactness = true;
177 } else {
178 stream.backUp(1); // must be radix specifier
179 }
180 if (stream.match(/^#b/i)) {
181 numTest = isBinaryNumber;
182 } else if (stream.match(/^#o/i)) {
183 numTest = isOctalNumber;
184 } else if (stream.match(/^#x/i)) {
185 numTest = isHexNumber;
186 } else if (stream.match(/^#d/i)) {
187 numTest = isDecimalNumber;
188 } else if (stream.match(/^[-+0-9.]/, false)) {
189 hasRadix = false;
190 numTest = isDecimalNumber;
191 // re-consume the initial # if all matches failed
192 } else if (!hasExactness) {
193 stream.eat('#');
194 }
195 if (numTest != null) {
196 if (hasRadix && !hasExactness) {
197 // consume optional exactness after radix
198 stream.match(/^#[ei]/i);
199 }
200 if (numTest(stream))
201 returnType = NUMBER;
202 }
203 }
204 } else if (/^[-+0-9.]/.test(ch) && isDecimalNumber(stream, true)) { // match non-prefixed number, must be decimal
205 returnType = NUMBER;
206 } else if (ch == ";") { // comment
207 stream.skipToEnd(); // rest of the line is a comment
208 returnType = COMMENT;
209 } else if (ch == "(" || ch == "[") {
210 var keyWord = ''; var indentTemp = stream.column(), letter;
211 /**
212 Either
213 (indent-word ..
214 (non-indent-word ..
215 (;something else, bracket, etc.
216 */
217
218 while ((letter = stream.eat(/[^\s\(\[\;\)\]]/)) != null) {
219 keyWord += letter;
220 }
221
222 if (keyWord.length > 0 && indentKeys.propertyIsEnumerable(keyWord)) { // indent-word
223
224 pushStack(state, indentTemp + INDENT_WORD_SKIP, ch);
225 } else { // non-indent word
226 // we continue eating the spaces
227 stream.eatSpace();
228 if (stream.eol() || stream.peek() == ";") {
229 // nothing significant after
230 // we restart indentation 1 space after
231 pushStack(state, indentTemp + 1, ch);
232 } else {
233 pushStack(state, indentTemp + stream.current().length, ch); // else we match
234 }
235 }
236 stream.backUp(stream.current().length - 1); // undo all the eating
237
238 if(typeof state.sExprComment == "number") state.sExprComment++;
239 if(typeof state.sExprQuote == "number") state.sExprQuote++;
240
241 returnType = BRACKET;
242 } else if (ch == ")" || ch == "]") {
243 returnType = BRACKET;
244 if (state.indentStack != null && state.indentStack.type == (ch == ")" ? "(" : "[")) {
245 popStack(state);
246
247 if(typeof state.sExprComment == "number"){
248 if(--state.sExprComment == 0){
249 returnType = COMMENT; // final closing bracket
250 state.sExprComment = false; // turn off s-expr commenting mode
251 }
252 }
253 if(typeof state.sExprQuote == "number"){
254 if(--state.sExprQuote == 0){
255 returnType = ATOM; // final closing bracket
256 state.sExprQuote = false; // turn off s-expr quote mode
257 }
258 }
259 }
260 } else {
261 stream.eatWhile(/[\w_\-!$%&*+\.\/:<=>?@\^~]/);
262
263 if (keywords && keywords.propertyIsEnumerable(stream.current())) {
264 returnType = BUILTIN;
265 } else returnType = "variable";
266 }
267 }
268 return (typeof state.sExprComment == "number") ? COMMENT : ((typeof state.sExprQuote == "number") ? ATOM : returnType);
269 },
270
271 indent: function (state) {
272 if (state.indentStack == null) return state.indentation;
273 return state.indentStack.indent;
274 },
275
276 fold: "brace-paren",
277 closeBrackets: {pairs: "()[]{}\"\""},
278 lineComment: ";;"
279 };
280 });
281
282 CodeMirror.defineMIME("text/x-scheme", "scheme");
283
284 });