/[jscoverage]/trunk/js/jsregexp.h
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Annotation of /trunk/js/jsregexp.h

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Revision 332 - (hide annotations)
Thu Oct 23 19:03:33 2008 UTC (11 years, 9 months ago) by siliconforks
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File size: 6853 byte(s)
Add SpiderMonkey from Firefox 3.1b1.

The following directories and files were removed:
correct/, correct.js
liveconnect/
nanojit/
t/
v8/
vprof/
xpconnect/
all JavaScript files (Y.js, call.js, if.js, math-partial-sums.js, md5.js, perfect.js, trace-test.js, trace.js)


1 siliconforks 332 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2     *
3     * ***** BEGIN LICENSE BLOCK *****
4     * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5     *
6     * The contents of this file are subject to the Mozilla Public License Version
7     * 1.1 (the "License"); you may not use this file except in compliance with
8     * the License. You may obtain a copy of the License at
9     * http://www.mozilla.org/MPL/
10     *
11     * Software distributed under the License is distributed on an "AS IS" basis,
12     * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13     * for the specific language governing rights and limitations under the
14     * License.
15     *
16     * The Original Code is Mozilla Communicator client code, released
17     * March 31, 1998.
18     *
19     * The Initial Developer of the Original Code is
20     * Netscape Communications Corporation.
21     * Portions created by the Initial Developer are Copyright (C) 1998
22     * the Initial Developer. All Rights Reserved.
23     *
24     * Contributor(s):
25     *
26     * Alternatively, the contents of this file may be used under the terms of
27     * either of the GNU General Public License Version 2 or later (the "GPL"),
28     * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
29     * in which case the provisions of the GPL or the LGPL are applicable instead
30     * of those above. If you wish to allow use of your version of this file only
31     * under the terms of either the GPL or the LGPL, and not to allow others to
32     * use your version of this file under the terms of the MPL, indicate your
33     * decision by deleting the provisions above and replace them with the notice
34     * and other provisions required by the GPL or the LGPL. If you do not delete
35     * the provisions above, a recipient may use your version of this file under
36     * the terms of any one of the MPL, the GPL or the LGPL.
37     *
38     * ***** END LICENSE BLOCK ***** */
39    
40     #ifndef jsregexp_h___
41     #define jsregexp_h___
42     /*
43     * JS regular expression interface.
44     */
45     #include <stddef.h>
46     #include "jspubtd.h"
47     #include "jsstr.h"
48    
49     #ifdef JS_THREADSAFE
50     #include "jsdhash.h"
51     #endif
52    
53     JS_BEGIN_EXTERN_C
54    
55     struct JSRegExpStatics {
56     JSString *input; /* input string to match (perl $_, GC root) */
57     JSBool multiline; /* whether input contains newlines (perl $*) */
58     uint16 parenCount; /* number of valid elements in parens[] */
59     uint16 moreLength; /* number of allocated elements in moreParens */
60     JSSubString parens[9]; /* last set of parens matched (perl $1, $2) */
61     JSSubString *moreParens; /* null or realloc'd vector for $10, etc. */
62     JSSubString lastMatch; /* last string matched (perl $&) */
63     JSSubString lastParen; /* last paren matched (perl $+) */
64     JSSubString leftContext; /* input to left of last match (perl $`) */
65     JSSubString rightContext; /* input to right of last match (perl $') */
66     };
67    
68     /*
69     * This struct holds a bitmap representation of a class from a regexp.
70     * There's a list of these referenced by the classList field in the JSRegExp
71     * struct below. The initial state has startIndex set to the offset in the
72     * original regexp source of the beginning of the class contents. The first
73     * use of the class converts the source representation into a bitmap.
74     *
75     */
76     typedef struct RECharSet {
77     JSPackedBool converted;
78     JSPackedBool sense;
79     uint16 length;
80     union {
81     uint8 *bits;
82     struct {
83     size_t startIndex;
84     size_t length;
85     } src;
86     } u;
87     } RECharSet;
88    
89     /*
90     * This macro is safe because moreParens is guaranteed to be allocated and big
91     * enough to hold parenCount, or else be null when parenCount is 0.
92     */
93     #define REGEXP_PAREN_SUBSTRING(res, num) \
94     (((jsuint)(num) < (jsuint)(res)->parenCount) \
95     ? ((jsuint)(num) < 9) \
96     ? &(res)->parens[num] \
97     : &(res)->moreParens[(num) - 9] \
98     : &js_EmptySubString)
99    
100     typedef struct RENode RENode;
101    
102     struct JSRegExp {
103     jsrefcount nrefs; /* reference count */
104     uint16 flags; /* flags, see jsapi.h's JSREG_* defines */
105     size_t parenCount; /* number of parenthesized submatches */
106     size_t classCount; /* count [...] bitmaps */
107     RECharSet *classList; /* list of [...] bitmaps */
108     JSString *source; /* locked source string, sans // */
109     jsbytecode program[1]; /* regular expression bytecode */
110     };
111    
112     extern JSRegExp *
113     js_NewRegExp(JSContext *cx, JSTokenStream *ts,
114     JSString *str, uintN flags, JSBool flat);
115    
116     extern JSRegExp *
117     js_NewRegExpOpt(JSContext *cx, JSString *str, JSString *opt, JSBool flat);
118    
119     #define HOLD_REGEXP(cx, re) JS_ATOMIC_INCREMENT(&(re)->nrefs)
120     #define DROP_REGEXP(cx, re) js_DestroyRegExp(cx, re)
121    
122     extern void
123     js_DestroyRegExp(JSContext *cx, JSRegExp *re);
124    
125     /*
126     * Execute re on input str at *indexp, returning null in *rval on mismatch.
127     * On match, return true if test is true, otherwise return an array object.
128     * Update *indexp and cx->regExpStatics always on match.
129     */
130     extern JSBool
131     js_ExecuteRegExp(JSContext *cx, JSRegExp *re, JSString *str, size_t *indexp,
132     JSBool test, jsval *rval);
133    
134     /*
135     * These two add and remove GC roots, respectively, so their calls must be
136     * well-ordered.
137     */
138     extern JSBool
139     js_InitRegExpStatics(JSContext *cx, JSRegExpStatics *res);
140    
141     extern void
142     js_FreeRegExpStatics(JSContext *cx, JSRegExpStatics *res);
143    
144     #define VALUE_IS_REGEXP(cx, v) \
145     (JSVAL_IS_OBJECT(v) && JSVAL_TO_OBJECT(v) && \
146     OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(v)) == &js_RegExpClass)
147    
148     extern JSClass js_RegExpClass;
149    
150     enum regexp_tinyid {
151     REGEXP_SOURCE = -1,
152     REGEXP_GLOBAL = -2,
153     REGEXP_IGNORE_CASE = -3,
154     REGEXP_LAST_INDEX = -4,
155     REGEXP_MULTILINE = -5,
156     REGEXP_STICKY = -6
157     };
158    
159     extern JSObject *
160     js_InitRegExpClass(JSContext *cx, JSObject *obj);
161    
162     /*
163     * Export js_regexp_toString to the decompiler.
164     */
165     extern JSBool
166     js_regexp_toString(JSContext *cx, JSObject *obj, jsval *vp);
167    
168     /*
169     * Create, serialize/deserialize, or clone a RegExp object.
170     */
171     extern JSObject *
172     js_NewRegExpObject(JSContext *cx, JSTokenStream *ts,
173     jschar *chars, size_t length, uintN flags);
174    
175     extern JSBool
176     js_XDRRegExp(JSXDRState *xdr, JSObject **objp);
177    
178     extern JSObject *
179     js_CloneRegExpObject(JSContext *cx, JSObject *obj, JSObject *parent);
180    
181     /*
182     * Get and set the per-object (clone or clone-parent) lastIndex slot.
183     */
184     extern JSBool
185     js_GetLastIndex(JSContext *cx, JSObject *obj, jsdouble *lastIndex);
186    
187     extern JSBool
188     js_SetLastIndex(JSContext *cx, JSObject *obj, jsdouble lastIndex);
189    
190     JS_END_EXTERN_C
191    
192     #endif /* jsregexp_h___ */

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