1 /*
2 * Permission is hereby granted, free of charge, to any person obtaining a copy of
3 * this software and associated documentation files (the "Software"), to deal in
4 * the Software without restriction, including without limitation the rights to
5 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
6 * of the Software, and to permit persons to whom the Software is furnished to do
7 * so, subject to the following conditions:
8 *
9 * The above copyright notice and this permission notice shall be included in all
10 * copies or substantial portions of the Software.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
18 * SOFTWARE.
19 */
20 package jdk.nashorn.internal.runtime.regexp.joni;
21
22 import static jdk.nashorn.internal.runtime.regexp.joni.constants.MetaChar.INEFFECTIVE_META_CHAR;
23 import jdk.nashorn.internal.runtime.regexp.joni.constants.SyntaxProperties;
24
25 @SuppressWarnings("javadoc")
26 public final class Syntax implements SyntaxProperties {
27 private final int op;
28 private final int op2;
29 private final int behavior;
30 public final int options;
31 public final MetaCharTable metaCharTable;
32
33 public Syntax(final int op, final int op2, final int behavior, final int options, final MetaCharTable metaCharTable) {
34 this.op = op;
35 this.op2 = op2;
36 this.behavior = behavior;
37 this.options = options;
38 this.metaCharTable = metaCharTable;
39 }
40
41 public static class MetaCharTable {
42 public final int esc;
43 public final int anyChar;
44 public final int anyTime;
45 public final int zeroOrOneTime;
46 public final int oneOrMoreTime;
47 public final int anyCharAnyTime;
48
49 public MetaCharTable(final int esc, final int anyChar, final int anyTime,
50 final int zeroOrOneTime, final int oneOrMoreTime, final int anyCharAnyTime) {
51 this.esc = esc;
52 this.anyChar = anyChar;
53 this.anyTime = anyTime;
54 this.zeroOrOneTime = zeroOrOneTime;
55 this.oneOrMoreTime = oneOrMoreTime;
56 this.anyCharAnyTime = anyCharAnyTime;
57 }
58 }
59
60 //
61 // OP
62 //
63
64 protected boolean isOp(final int opm) {
65 return (op & opm) != 0;
66 }
67
68 public boolean opVariableMetaCharacters() {
69 return isOp(OP_VARIABLE_META_CHARACTERS);
70 }
71
72 public boolean opDotAnyChar() {
73 return isOp(OP_DOT_ANYCHAR);
74 }
75
76 public boolean opAsteriskZeroInf() {
77 return isOp(OP_ASTERISK_ZERO_INF);
78 }
79
80 public boolean opEscAsteriskZeroInf() {
81 return isOp(OP_ESC_ASTERISK_ZERO_INF);
82 }
83
84 public boolean opPlusOneInf() {
85 return isOp(OP_PLUS_ONE_INF);
86 }
87
88 public boolean opEscPlusOneInf() {
89 return isOp(OP_ESC_PLUS_ONE_INF);
90 }
91
92 public boolean opQMarkZeroOne() {
93 return isOp(OP_QMARK_ZERO_ONE);
94 }
95
96 public boolean opEscQMarkZeroOne() {
97 return isOp(OP_ESC_QMARK_ZERO_ONE);
98 }
99
100 public boolean opBraceInterval() {
101 return isOp(OP_BRACE_INTERVAL);
102 }
103
104 public boolean opEscBraceInterval() {
105 return isOp(OP_ESC_BRACE_INTERVAL);
106 }
107
108 public boolean opVBarAlt() {
109 return isOp(OP_VBAR_ALT);
110 }
111
112 public boolean opEscVBarAlt() {
113 return isOp(OP_ESC_VBAR_ALT);
114 }
115
116 public boolean opLParenSubexp() {
117 return isOp(OP_LPAREN_SUBEXP);
118 }
119
120 public boolean opEscLParenSubexp() {
121 return isOp(OP_ESC_LPAREN_SUBEXP);
122 }
123
124 public boolean opEscAZBufAnchor() {
125 return isOp(OP_ESC_AZ_BUF_ANCHOR);
126 }
127
128 public boolean opEscCapitalGBeginAnchor() {
129 return isOp(OP_ESC_CAPITAL_G_BEGIN_ANCHOR);
130 }
131
132 public boolean opDecimalBackref() {
133 return isOp(OP_DECIMAL_BACKREF);
134 }
135
136 public boolean opBracketCC() {
137 return isOp(OP_BRACKET_CC);
138 }
139
140 public boolean opEscWWord() {
141 return isOp(OP_ESC_W_WORD);
142 }
143
144 public boolean opEscLtGtWordBeginEnd() {
145 return isOp(OP_ESC_LTGT_WORD_BEGIN_END);
146 }
147
148 public boolean opEscBWordBound() {
149 return isOp(OP_ESC_B_WORD_BOUND);
150 }
151
152 public boolean opEscSWhiteSpace() {
153 return isOp(OP_ESC_S_WHITE_SPACE);
154 }
155
156 public boolean opEscDDigit() {
157 return isOp(OP_ESC_D_DIGIT);
158 }
159
160 public boolean opLineAnchor() {
161 return isOp(OP_LINE_ANCHOR);
162 }
163
164 public boolean opPosixBracket() {
165 return isOp(OP_POSIX_BRACKET);
166 }
167
168 public boolean opQMarkNonGreedy() {
169 return isOp(OP_QMARK_NON_GREEDY);
170 }
171
172 public boolean opEscControlChars() {
173 return isOp(OP_ESC_CONTROL_CHARS);
174 }
175
176 public boolean opEscCControl() {
177 return isOp(OP_ESC_C_CONTROL);
178 }
179
180 public boolean opEscOctal3() {
181 return isOp(OP_ESC_OCTAL3);
182 }
183
184 public boolean opEscXHex2() {
185 return isOp(OP_ESC_X_HEX2);
186 }
187
188 public boolean opEscXBraceHex8() {
189 return isOp(OP_ESC_X_BRACE_HEX8);
190 }
191
192 //
193 // OP2
194 //
195
196 protected boolean isOp2(final int opm) {
197 return (op2 & opm) != 0;
198 }
199
200 public boolean op2EscCapitalQQuote() {
201 return isOp2(OP2_ESC_CAPITAL_Q_QUOTE);
202 }
203
204 public boolean op2QMarkGroupEffect() {
205 return isOp2(OP2_QMARK_GROUP_EFFECT);
206 }
207
208 public boolean op2OptionPerl() {
209 return isOp2(OP2_OPTION_PERL);
210 }
211
212 public boolean op2OptionRuby() {
213 return isOp2(OP2_OPTION_RUBY);
214 }
215
216 public boolean op2PlusPossessiveRepeat() {
217 return isOp2(OP2_PLUS_POSSESSIVE_REPEAT);
218 }
219
220 public boolean op2PlusPossessiveInterval() {
221 return isOp2(OP2_PLUS_POSSESSIVE_INTERVAL);
222 }
223
224 public boolean op2CClassSetOp() {
225 return isOp2(OP2_CCLASS_SET_OP);
226 }
227
228 public boolean op2QMarkLtNamedGroup() {
229 return isOp2(OP2_QMARK_LT_NAMED_GROUP);
230 }
231
232 public boolean op2EscKNamedBackref() {
233 return isOp2(OP2_ESC_K_NAMED_BACKREF);
234 }
235
236 public boolean op2EscGSubexpCall() {
237 return isOp2(OP2_ESC_G_SUBEXP_CALL);
238 }
239
240 public boolean op2AtMarkCaptureHistory() {
241 return isOp2(OP2_ATMARK_CAPTURE_HISTORY);
242 }
243
244 public boolean op2EscCapitalCBarControl() {
245 return isOp2(OP2_ESC_CAPITAL_C_BAR_CONTROL);
246 }
247
248 public boolean op2EscCapitalMBarMeta() {
249 return isOp2(OP2_ESC_CAPITAL_M_BAR_META);
250 }
251
252 public boolean op2EscVVtab() {
253 return isOp2(OP2_ESC_V_VTAB);
254 }
255
256 public boolean op2EscUHex4() {
257 return isOp2(OP2_ESC_U_HEX4);
258 }
259
260 public boolean op2EscGnuBufAnchor() {
261 return isOp2(OP2_ESC_GNU_BUF_ANCHOR);
262 }
263
264 public boolean op2EscPBraceCharProperty() {
265 return isOp2(OP2_ESC_P_BRACE_CHAR_PROPERTY);
266 }
267
268 public boolean op2EscPBraceCircumflexNot() {
269 return isOp2(OP2_ESC_P_BRACE_CIRCUMFLEX_NOT);
270 }
271
272 public boolean op2EscHXDigit() {
273 return isOp2(OP2_ESC_H_XDIGIT);
274 }
275
276 public boolean op2IneffectiveEscape() {
277 return isOp2(OP2_INEFFECTIVE_ESCAPE);
278 }
279
280 //
281 // BEHAVIOR
282 //
283
284 protected boolean isBehavior(final int bvm) {
285 return (behavior & bvm) != 0;
286 }
287
288 public boolean contextIndepRepeatOps() {
289 return isBehavior(CONTEXT_INDEP_REPEAT_OPS);
290 }
291
292 public boolean contextInvalidRepeatOps() {
293 return isBehavior(CONTEXT_INVALID_REPEAT_OPS);
294 }
295
296 public boolean allowUnmatchedCloseSubexp() {
297 return isBehavior(ALLOW_UNMATCHED_CLOSE_SUBEXP);
298 }
299
300 public boolean allowInvalidInterval() {
301 return isBehavior(ALLOW_INVALID_INTERVAL);
302 }
303
304 public boolean allowIntervalLowAbbrev() {
305 return isBehavior(ALLOW_INTERVAL_LOW_ABBREV);
306 }
307
308 public boolean strictCheckBackref() {
309 return isBehavior(STRICT_CHECK_BACKREF);
310 }
311
312 public boolean differentLengthAltLookBehind() {
313 return isBehavior(DIFFERENT_LEN_ALT_LOOK_BEHIND);
314 }
315
316 public boolean captureOnlyNamedGroup() {
317 return isBehavior(CAPTURE_ONLY_NAMED_GROUP);
318 }
319
320 public boolean allowMultiplexDefinitionName() {
321 return isBehavior(ALLOW_MULTIPLEX_DEFINITION_NAME);
322 }
323
324 public boolean fixedIntervalIsGreedyOnly() {
325 return isBehavior(FIXED_INTERVAL_IS_GREEDY_ONLY);
326 }
327
328
329 public boolean notNewlineInNegativeCC() {
330 return isBehavior(NOT_NEWLINE_IN_NEGATIVE_CC);
331 }
332
333 public boolean backSlashEscapeInCC() {
334 return isBehavior(BACKSLASH_ESCAPE_IN_CC);
335 }
336
337 public boolean allowEmptyRangeInCC() {
338 return isBehavior(ALLOW_EMPTY_RANGE_IN_CC);
339 }
340
341 public boolean allowDoubleRangeOpInCC() {
342 return isBehavior(ALLOW_DOUBLE_RANGE_OP_IN_CC);
343 }
344
345 public boolean warnCCOpNotEscaped() {
346 return isBehavior(WARN_CC_OP_NOT_ESCAPED);
347 }
348
349 public boolean warnReduntantNestedRepeat() {
350 return isBehavior(WARN_REDUNDANT_NESTED_REPEAT);
351 }
352
353 public static final Syntax RUBY = new Syntax(
354 (( GNU_REGEX_OP | OP_QMARK_NON_GREEDY |
355 OP_ESC_OCTAL3 | OP_ESC_X_HEX2 |
356 OP_ESC_X_BRACE_HEX8 | OP_ESC_CONTROL_CHARS |
357 OP_ESC_C_CONTROL )
358 & ~OP_ESC_LTGT_WORD_BEGIN_END ),
359
360 ( OP2_QMARK_GROUP_EFFECT |
361 OP2_OPTION_RUBY |
362 OP2_QMARK_LT_NAMED_GROUP | OP2_ESC_K_NAMED_BACKREF |
363 OP2_ESC_G_SUBEXP_CALL |
364 OP2_ESC_P_BRACE_CHAR_PROPERTY |
365 OP2_ESC_P_BRACE_CIRCUMFLEX_NOT |
366 OP2_PLUS_POSSESSIVE_REPEAT |
367 OP2_CCLASS_SET_OP | OP2_ESC_CAPITAL_C_BAR_CONTROL |
368 OP2_ESC_CAPITAL_M_BAR_META | OP2_ESC_V_VTAB |
369 OP2_ESC_H_XDIGIT ),
370
371 ( GNU_REGEX_BV |
372 ALLOW_INTERVAL_LOW_ABBREV |
373 DIFFERENT_LEN_ALT_LOOK_BEHIND |
374 CAPTURE_ONLY_NAMED_GROUP |
375 ALLOW_MULTIPLEX_DEFINITION_NAME |
376 FIXED_INTERVAL_IS_GREEDY_ONLY |
377 WARN_CC_OP_NOT_ESCAPED |
378 WARN_REDUNDANT_NESTED_REPEAT ),
379
380 Option.NONE,
381
382 new MetaCharTable(
383 '\\', /* esc */
384 INEFFECTIVE_META_CHAR, /* anychar '.' */
385 INEFFECTIVE_META_CHAR, /* anytime '*' */
386 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
387 INEFFECTIVE_META_CHAR, /* one or more time '+' */
388 INEFFECTIVE_META_CHAR /* anychar anytime */
389 )
390 );
391
392 public static final Syntax DEFAULT = RUBY;
393
394 public static final Syntax ASIS = new Syntax(
395 0,
396
397 OP2_INEFFECTIVE_ESCAPE,
398
399 0,
400
401 Option.NONE,
402
403 new MetaCharTable(
404 '\\', /* esc */
405 INEFFECTIVE_META_CHAR, /* anychar '.' */
406 INEFFECTIVE_META_CHAR, /* anytime '*' */
407 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
408 INEFFECTIVE_META_CHAR, /* one or more time '+' */
409 INEFFECTIVE_META_CHAR /* anychar anytime */
410 )
411 );
412
413 public static final Syntax PosixBasic = new Syntax(
414 (POSIX_COMMON_OP | OP_ESC_LPAREN_SUBEXP |
415 OP_ESC_BRACE_INTERVAL ),
416
417 0,
418
419 0,
420
421 ( Option.SINGLELINE | Option.MULTILINE ),
422
423 new MetaCharTable(
424 '\\', /* esc */
425 INEFFECTIVE_META_CHAR, /* anychar '.' */
426 INEFFECTIVE_META_CHAR, /* anytime '*' */
427 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
428 INEFFECTIVE_META_CHAR, /* one or more time '+' */
429 INEFFECTIVE_META_CHAR /* anychar anytime */
430 )
431 );
432
433 public static final Syntax PosixExtended = new Syntax(
434 ( POSIX_COMMON_OP | OP_LPAREN_SUBEXP |
435 OP_BRACE_INTERVAL |
436 OP_PLUS_ONE_INF | OP_QMARK_ZERO_ONE |OP_VBAR_ALT ),
437
438 0,
439
440 ( CONTEXT_INDEP_ANCHORS |
441 CONTEXT_INDEP_REPEAT_OPS | CONTEXT_INVALID_REPEAT_OPS |
442 ALLOW_UNMATCHED_CLOSE_SUBEXP |
443 ALLOW_DOUBLE_RANGE_OP_IN_CC ),
444
445 ( Option.SINGLELINE | Option.MULTILINE ),
446
447 new MetaCharTable(
448 '\\', /* esc */
449 INEFFECTIVE_META_CHAR, /* anychar '.' */
450 INEFFECTIVE_META_CHAR, /* anytime '*' */
451 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
452 INEFFECTIVE_META_CHAR, /* one or more time '+' */
453 INEFFECTIVE_META_CHAR /* anychar anytime */
454 )
455 );
456
457 public static final Syntax Emacs = new Syntax(
458 ( OP_DOT_ANYCHAR | OP_BRACKET_CC |
459 OP_ESC_BRACE_INTERVAL |
460 OP_ESC_LPAREN_SUBEXP | OP_ESC_VBAR_ALT |
461 OP_ASTERISK_ZERO_INF | OP_PLUS_ONE_INF |
462 OP_QMARK_ZERO_ONE | OP_DECIMAL_BACKREF |
463 OP_LINE_ANCHOR | OP_ESC_CONTROL_CHARS ),
464
465 OP2_ESC_GNU_BUF_ANCHOR,
466
467 ALLOW_EMPTY_RANGE_IN_CC,
468
469 Option.NONE,
470
471 new MetaCharTable(
472 '\\', /* esc */
473 INEFFECTIVE_META_CHAR, /* anychar '.' */
474 INEFFECTIVE_META_CHAR, /* anytime '*' */
475 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
476 INEFFECTIVE_META_CHAR, /* one or more time '+' */
477 INEFFECTIVE_META_CHAR /* anychar anytime */
478 )
479 );
480
481 public static final Syntax Grep = new Syntax(
482 ( OP_DOT_ANYCHAR | OP_BRACKET_CC | OP_POSIX_BRACKET |
483 OP_ESC_BRACE_INTERVAL | OP_ESC_LPAREN_SUBEXP |
484 OP_ESC_VBAR_ALT |
485 OP_ASTERISK_ZERO_INF | OP_ESC_PLUS_ONE_INF |
486 OP_ESC_QMARK_ZERO_ONE | OP_LINE_ANCHOR |
487 OP_ESC_W_WORD | OP_ESC_B_WORD_BOUND |
488 OP_ESC_LTGT_WORD_BEGIN_END | OP_DECIMAL_BACKREF ),
489
490 0,
491
492 ( ALLOW_EMPTY_RANGE_IN_CC | NOT_NEWLINE_IN_NEGATIVE_CC ),
493
494 Option.NONE,
495
496 new MetaCharTable(
497 '\\', /* esc */
498 INEFFECTIVE_META_CHAR, /* anychar '.' */
499 INEFFECTIVE_META_CHAR, /* anytime '*' */
500 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
501 INEFFECTIVE_META_CHAR, /* one or more time '+' */
502 INEFFECTIVE_META_CHAR /* anychar anytime */
503 )
504 );
505
506 public static final Syntax GnuRegex = new Syntax(
507 GNU_REGEX_OP,
508 0,
509 GNU_REGEX_BV,
510
511 Option.NONE,
512
513 new MetaCharTable(
514 '\\', /* esc */
515 INEFFECTIVE_META_CHAR, /* anychar '.' */
516 INEFFECTIVE_META_CHAR, /* anytime '*' */
517 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
518 INEFFECTIVE_META_CHAR, /* one or more time '+' */
519 INEFFECTIVE_META_CHAR /* anychar anytime */
520 )
521 );
522
523 public static final Syntax Java = new Syntax(
524 (( GNU_REGEX_OP | OP_QMARK_NON_GREEDY |
525 OP_ESC_CONTROL_CHARS | OP_ESC_C_CONTROL |
526 OP_ESC_OCTAL3 | OP_ESC_X_HEX2 )
527 & ~OP_ESC_LTGT_WORD_BEGIN_END ),
528
529 ( OP2_ESC_CAPITAL_Q_QUOTE | OP2_QMARK_GROUP_EFFECT |
530 OP2_OPTION_PERL | OP2_PLUS_POSSESSIVE_REPEAT |
531 OP2_PLUS_POSSESSIVE_INTERVAL | OP2_CCLASS_SET_OP |
532 OP2_ESC_V_VTAB | OP2_ESC_U_HEX4 |
533 OP2_ESC_P_BRACE_CHAR_PROPERTY ),
534
535 ( GNU_REGEX_BV | DIFFERENT_LEN_ALT_LOOK_BEHIND ),
536
537 Option.SINGLELINE,
538
539 new MetaCharTable(
540 '\\', /* esc */
541 INEFFECTIVE_META_CHAR, /* anychar '.' */
542 INEFFECTIVE_META_CHAR, /* anytime '*' */
543 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
544 INEFFECTIVE_META_CHAR, /* one or more time '+' */
545 INEFFECTIVE_META_CHAR /* anychar anytime */
546 )
547 );
548
549 public static final Syntax Perl = new Syntax(
550 (( GNU_REGEX_OP | OP_QMARK_NON_GREEDY |
551 OP_ESC_OCTAL3 | OP_ESC_X_HEX2 |
552 OP_ESC_X_BRACE_HEX8 | OP_ESC_CONTROL_CHARS |
553 OP_ESC_C_CONTROL )
554 & ~OP_ESC_LTGT_WORD_BEGIN_END ),
555
556 ( OP2_ESC_CAPITAL_Q_QUOTE |
557 OP2_QMARK_GROUP_EFFECT | OP2_OPTION_PERL |
558 OP2_ESC_P_BRACE_CHAR_PROPERTY |
559 OP2_ESC_P_BRACE_CIRCUMFLEX_NOT ),
560
561 GNU_REGEX_BV,
562
563 Option.SINGLELINE,
564
565 new MetaCharTable(
566 '\\', /* esc */
567 INEFFECTIVE_META_CHAR, /* anychar '.' */
568 INEFFECTIVE_META_CHAR, /* anytime '*' */
569 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
570 INEFFECTIVE_META_CHAR, /* one or more time '+' */
571 INEFFECTIVE_META_CHAR /* anychar anytime */
572 )
573 );
574
575 public static final Syntax PerlNG = new Syntax(
576 (( GNU_REGEX_OP | OP_QMARK_NON_GREEDY |
577 OP_ESC_OCTAL3 | OP_ESC_X_HEX2 |
578 OP_ESC_X_BRACE_HEX8 | OP_ESC_CONTROL_CHARS |
579 OP_ESC_C_CONTROL )
580 & ~OP_ESC_LTGT_WORD_BEGIN_END ),
581
582 ( OP2_ESC_CAPITAL_Q_QUOTE |
583 OP2_QMARK_GROUP_EFFECT | OP2_OPTION_PERL |
584 OP2_ESC_P_BRACE_CHAR_PROPERTY |
585 OP2_ESC_P_BRACE_CIRCUMFLEX_NOT |
586 OP2_QMARK_LT_NAMED_GROUP |
587 OP2_ESC_K_NAMED_BACKREF |
588 OP2_ESC_G_SUBEXP_CALL ),
589
590 ( GNU_REGEX_BV |
591 CAPTURE_ONLY_NAMED_GROUP |
592 ALLOW_MULTIPLEX_DEFINITION_NAME ),
593
594 Option.SINGLELINE,
595
596 new MetaCharTable(
597 '\\', /* esc */
598 INEFFECTIVE_META_CHAR, /* anychar '.' */
599 INEFFECTIVE_META_CHAR, /* anytime '*' */
600 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
601 INEFFECTIVE_META_CHAR, /* one or more time '+' */
602 INEFFECTIVE_META_CHAR /* anychar anytime */
603 )
604 );
605
606 public static final Syntax JAVASCRIPT = new Syntax(
607 (( GNU_REGEX_OP | OP_QMARK_NON_GREEDY |
608 OP_ESC_CONTROL_CHARS | OP_ESC_C_CONTROL | OP_ESC_X_HEX2)
609 & ~OP_ESC_LTGT_WORD_BEGIN_END ),
610
611 ( OP2_QMARK_GROUP_EFFECT |
612 OP2_ESC_V_VTAB | OP2_ESC_U_HEX4 ),
613
614 ( GNU_REGEX_BV | DIFFERENT_LEN_ALT_LOOK_BEHIND ),
615
616 Option.SINGLELINE,
617
618 new MetaCharTable(
619 '\\', /* esc */
620 INEFFECTIVE_META_CHAR, /* anychar '.' */
621 INEFFECTIVE_META_CHAR, /* anytime '*' */
622 INEFFECTIVE_META_CHAR, /* zero or one time '?' */
623 INEFFECTIVE_META_CHAR, /* one or more time '+' */
624 INEFFECTIVE_META_CHAR /* anychar anytime */
625 )
626 );
627 }