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Diffstat (limited to 'src/third_party/js-1.7/jsstr.h')
| -rw-r--r-- | src/third_party/js-1.7/jsstr.h | 500 |
1 files changed, 0 insertions, 500 deletions
diff --git a/src/third_party/js-1.7/jsstr.h b/src/third_party/js-1.7/jsstr.h deleted file mode 100644 index 708c69acbcf..00000000000 --- a/src/third_party/js-1.7/jsstr.h +++ /dev/null @@ -1,500 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- - * - * ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Mozilla Communicator client code, released - * March 31, 1998. - * - * The Initial Developer of the Original Code is - * Netscape Communications Corporation. - * Portions created by the Initial Developer are Copyright (C) 1998 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the terms of - * either of the GNU General Public License Version 2 or later (the "GPL"), - * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ - -#ifndef jsstr_h___ -#define jsstr_h___ -/* - * JS string type implementation. - * - * A JS string is a counted array of unicode characters. To support handoff - * of API client memory, the chars are allocated separately from the length, - * necessitating a pointer after the count, to form a separately allocated - * string descriptor. String descriptors are GC'ed, while their chars are - * allocated from the malloc heap. - * - * When a string is treated as an object (by following it with . or []), the - * runtime wraps it with a JSObject whose valueOf method returns the unwrapped - * string descriptor. - */ -#include <ctype.h> -#include "jspubtd.h" -#include "jsprvtd.h" -#include "jshash.h" - -JS_BEGIN_EXTERN_C - -/* - * The original GC-thing "string" type, a flat character string owned by its - * GC-thing descriptor. The chars member points to a vector having byte size - * (length + 1) * sizeof(jschar), terminated at index length by a zero jschar. - * The terminator is purely a backstop, in case the chars pointer flows out to - * native code that requires \u0000 termination. - * - * NB: Always use the JSSTRING_LENGTH and JSSTRING_CHARS accessor macros, - * unless you guard str->member uses with !JSSTRING_IS_DEPENDENT(str). - */ -struct JSString { - size_t length; - jschar *chars; -}; - -/* - * Overlay structure for a string that depends on another string's characters. - * Distinguished by the JSSTRFLAG_DEPENDENT bit being set in length. The base - * member may point to another dependent string if JSSTRING_CHARS has not been - * called yet. The length chars in a dependent string are stored starting at - * base->chars + start, and are not necessarily zero-terminated. If start is - * 0, it is not stored, length is a full size_t (minus the JSSTRFLAG_* bits in - * the high two positions), and the JSSTRFLAG_PREFIX flag is set. - */ -struct JSDependentString { - size_t length; - JSString *base; -}; - -/* Definitions for flags stored in the high order bits of JSString.length. */ -#define JSSTRFLAG_BITS 2 -#define JSSTRFLAG_SHIFT(flg) ((size_t)(flg) << JSSTRING_LENGTH_BITS) -#define JSSTRFLAG_MASK JSSTRFLAG_SHIFT(JS_BITMASK(JSSTRFLAG_BITS)) -#define JSSTRFLAG_DEPENDENT JSSTRFLAG_SHIFT(1) -#define JSSTRFLAG_PREFIX JSSTRFLAG_SHIFT(2) - -/* Universal JSString type inquiry and accessor macros. */ -#define JSSTRING_BIT(n) ((size_t)1 << (n)) -#define JSSTRING_BITMASK(n) (JSSTRING_BIT(n) - 1) -#define JSSTRING_HAS_FLAG(str,flg) ((str)->length & (flg)) -#define JSSTRING_IS_DEPENDENT(str) JSSTRING_HAS_FLAG(str, JSSTRFLAG_DEPENDENT) -#define JSSTRING_IS_PREFIX(str) JSSTRING_HAS_FLAG(str, JSSTRFLAG_PREFIX) -#define JSSTRING_CHARS(str) (JSSTRING_IS_DEPENDENT(str) \ - ? JSSTRDEP_CHARS(str) \ - : (str)->chars) -#define JSSTRING_LENGTH(str) (JSSTRING_IS_DEPENDENT(str) \ - ? JSSTRDEP_LENGTH(str) \ - : (str)->length) -#define JSSTRING_LENGTH_BITS (sizeof(size_t) * JS_BITS_PER_BYTE \ - - JSSTRFLAG_BITS) -#define JSSTRING_LENGTH_MASK JSSTRING_BITMASK(JSSTRING_LENGTH_BITS) - -/* Specific JSDependentString shift/mask accessor and mutator macros. */ -#define JSSTRDEP_START_BITS (JSSTRING_LENGTH_BITS-JSSTRDEP_LENGTH_BITS) -#define JSSTRDEP_START_SHIFT JSSTRDEP_LENGTH_BITS -#define JSSTRDEP_START_MASK JSSTRING_BITMASK(JSSTRDEP_START_BITS) -#define JSSTRDEP_LENGTH_BITS (JSSTRING_LENGTH_BITS / 2) -#define JSSTRDEP_LENGTH_MASK JSSTRING_BITMASK(JSSTRDEP_LENGTH_BITS) - -#define JSSTRDEP(str) ((JSDependentString *)(str)) -#define JSSTRDEP_START(str) (JSSTRING_IS_PREFIX(str) ? 0 \ - : ((JSSTRDEP(str)->length \ - >> JSSTRDEP_START_SHIFT) \ - & JSSTRDEP_START_MASK)) -#define JSSTRDEP_LENGTH(str) (JSSTRDEP(str)->length \ - & (JSSTRING_IS_PREFIX(str) \ - ? JSSTRING_LENGTH_MASK \ - : JSSTRDEP_LENGTH_MASK)) - -#define JSSTRDEP_SET_START_AND_LENGTH(str,off,len) \ - (JSSTRDEP(str)->length = JSSTRFLAG_DEPENDENT \ - | ((off) << JSSTRDEP_START_SHIFT) \ - | (len)) -#define JSPREFIX_SET_LENGTH(str,len) \ - (JSSTRDEP(str)->length = JSSTRFLAG_DEPENDENT | JSSTRFLAG_PREFIX | (len)) - -#define JSSTRDEP_BASE(str) (JSSTRDEP(str)->base) -#define JSSTRDEP_SET_BASE(str,bstr) (JSSTRDEP(str)->base = (bstr)) -#define JSPREFIX_BASE(str) JSSTRDEP_BASE(str) -#define JSPREFIX_SET_BASE(str,bstr) JSSTRDEP_SET_BASE(str,bstr) - -#define JSSTRDEP_CHARS(str) \ - (JSSTRING_IS_DEPENDENT(JSSTRDEP_BASE(str)) \ - ? js_GetDependentStringChars(str) \ - : JSSTRDEP_BASE(str)->chars + JSSTRDEP_START(str)) - -extern size_t -js_MinimizeDependentStrings(JSString *str, int level, JSString **basep); - -extern jschar * -js_GetDependentStringChars(JSString *str); - -extern jschar * -js_GetStringChars(JSString *str); - -extern JSString * -js_ConcatStrings(JSContext *cx, JSString *left, JSString *right); - -extern const jschar * -js_UndependString(JSContext *cx, JSString *str); - -struct JSSubString { - size_t length; - const jschar *chars; -}; - -extern jschar js_empty_ucstr[]; -extern JSSubString js_EmptySubString; - -/* Unicode character attribute lookup tables. */ -extern const uint8 js_X[]; -extern const uint8 js_Y[]; -extern const uint32 js_A[]; - -/* Enumerated Unicode general category types. */ -typedef enum JSCharType { - JSCT_UNASSIGNED = 0, - JSCT_UPPERCASE_LETTER = 1, - JSCT_LOWERCASE_LETTER = 2, - JSCT_TITLECASE_LETTER = 3, - JSCT_MODIFIER_LETTER = 4, - JSCT_OTHER_LETTER = 5, - JSCT_NON_SPACING_MARK = 6, - JSCT_ENCLOSING_MARK = 7, - JSCT_COMBINING_SPACING_MARK = 8, - JSCT_DECIMAL_DIGIT_NUMBER = 9, - JSCT_LETTER_NUMBER = 10, - JSCT_OTHER_NUMBER = 11, - JSCT_SPACE_SEPARATOR = 12, - JSCT_LINE_SEPARATOR = 13, - JSCT_PARAGRAPH_SEPARATOR = 14, - JSCT_CONTROL = 15, - JSCT_FORMAT = 16, - JSCT_PRIVATE_USE = 18, - JSCT_SURROGATE = 19, - JSCT_DASH_PUNCTUATION = 20, - JSCT_START_PUNCTUATION = 21, - JSCT_END_PUNCTUATION = 22, - JSCT_CONNECTOR_PUNCTUATION = 23, - JSCT_OTHER_PUNCTUATION = 24, - JSCT_MATH_SYMBOL = 25, - JSCT_CURRENCY_SYMBOL = 26, - JSCT_MODIFIER_SYMBOL = 27, - JSCT_OTHER_SYMBOL = 28 -} JSCharType; - -/* Character classifying and mapping macros, based on java.lang.Character. */ -#define JS_CCODE(c) (js_A[js_Y[(js_X[(uint16)(c)>>6]<<6)|((c)&0x3F)]]) -#define JS_CTYPE(c) (JS_CCODE(c) & 0x1F) - -#define JS_ISALPHA(c) ((((1 << JSCT_UPPERCASE_LETTER) | \ - (1 << JSCT_LOWERCASE_LETTER) | \ - (1 << JSCT_TITLECASE_LETTER) | \ - (1 << JSCT_MODIFIER_LETTER) | \ - (1 << JSCT_OTHER_LETTER)) \ - >> JS_CTYPE(c)) & 1) - -#define JS_ISALNUM(c) ((((1 << JSCT_UPPERCASE_LETTER) | \ - (1 << JSCT_LOWERCASE_LETTER) | \ - (1 << JSCT_TITLECASE_LETTER) | \ - (1 << JSCT_MODIFIER_LETTER) | \ - (1 << JSCT_OTHER_LETTER) | \ - (1 << JSCT_DECIMAL_DIGIT_NUMBER)) \ - >> JS_CTYPE(c)) & 1) - -/* A unicode letter, suitable for use in an identifier. */ -#define JS_ISLETTER(c) ((((1 << JSCT_UPPERCASE_LETTER) | \ - (1 << JSCT_LOWERCASE_LETTER) | \ - (1 << JSCT_TITLECASE_LETTER) | \ - (1 << JSCT_MODIFIER_LETTER) | \ - (1 << JSCT_OTHER_LETTER) | \ - (1 << JSCT_LETTER_NUMBER)) \ - >> JS_CTYPE(c)) & 1) - -/* - * 'IdentifierPart' from ECMA grammar, is Unicode letter or combining mark or - * digit or connector punctuation. - */ -#define JS_ISIDPART(c) ((((1 << JSCT_UPPERCASE_LETTER) | \ - (1 << JSCT_LOWERCASE_LETTER) | \ - (1 << JSCT_TITLECASE_LETTER) | \ - (1 << JSCT_MODIFIER_LETTER) | \ - (1 << JSCT_OTHER_LETTER) | \ - (1 << JSCT_LETTER_NUMBER) | \ - (1 << JSCT_NON_SPACING_MARK) | \ - (1 << JSCT_COMBINING_SPACING_MARK) | \ - (1 << JSCT_DECIMAL_DIGIT_NUMBER) | \ - (1 << JSCT_CONNECTOR_PUNCTUATION)) \ - >> JS_CTYPE(c)) & 1) - -/* Unicode control-format characters, ignored in input */ -#define JS_ISFORMAT(c) (((1 << JSCT_FORMAT) >> JS_CTYPE(c)) & 1) - -/* - * Per ECMA-262 15.10.2.6, these characters are the only ones that make up a - * "word", as far as a RegExp is concerned. If we want a Unicode-friendlier - * definition of "word", we should rename this macro to something regexp-y. - */ -#define JS_ISWORD(c) ((c) < 128 && (isalnum(c) || (c) == '_')) - -#define JS_ISIDSTART(c) (JS_ISLETTER(c) || (c) == '_' || (c) == '$') -#define JS_ISIDENT(c) (JS_ISIDPART(c) || (c) == '_' || (c) == '$') - -#define JS_ISXMLSPACE(c) ((c) == ' ' || (c) == '\t' || (c) == '\r' || \ - (c) == '\n') -#define JS_ISXMLNSSTART(c) ((JS_CCODE(c) & 0x00000100) || (c) == '_') -#define JS_ISXMLNS(c) ((JS_CCODE(c) & 0x00000080) || (c) == '.' || \ - (c) == '-' || (c) == '_') -#define JS_ISXMLNAMESTART(c) (JS_ISXMLNSSTART(c) || (c) == ':') -#define JS_ISXMLNAME(c) (JS_ISXMLNS(c) || (c) == ':') - -#define JS_ISDIGIT(c) (JS_CTYPE(c) == JSCT_DECIMAL_DIGIT_NUMBER) - -/* XXXbe unify on A/X/Y tbls, avoid ctype.h? */ -/* XXXbe fs, etc. ? */ -#define JS_ISSPACE(c) ((JS_CCODE(c) & 0x00070000) == 0x00040000) -#define JS_ISPRINT(c) ((c) < 128 && isprint(c)) - -#define JS_ISUPPER(c) (JS_CTYPE(c) == JSCT_UPPERCASE_LETTER) -#define JS_ISLOWER(c) (JS_CTYPE(c) == JSCT_LOWERCASE_LETTER) - -#define JS_TOUPPER(c) ((jschar) ((JS_CCODE(c) & 0x00100000) \ - ? (c) - ((int32)JS_CCODE(c) >> 22) \ - : (c))) -#define JS_TOLOWER(c) ((jschar) ((JS_CCODE(c) & 0x00200000) \ - ? (c) + ((int32)JS_CCODE(c) >> 22) \ - : (c))) - -/* - * Shorthands for ASCII (7-bit) decimal and hex conversion. - * Manually inline isdigit for performance; MSVC doesn't do this for us. - */ -#define JS7_ISDEC(c) ((((unsigned)(c)) - '0') <= 9) -#define JS7_UNDEC(c) ((c) - '0') -#define JS7_ISHEX(c) ((c) < 128 && isxdigit(c)) -#define JS7_UNHEX(c) (uintN)(JS7_ISDEC(c) ? (c) - '0' : 10 + tolower(c) - 'a') -#define JS7_ISLET(c) ((c) < 128 && isalpha(c)) - -/* Initialize per-runtime string state for the first context in the runtime. */ -extern JSBool -js_InitRuntimeStringState(JSContext *cx); - -extern void -js_FinishRuntimeStringState(JSContext *cx); - -extern void -js_FinishDeflatedStringCache(JSRuntime *rt); - -/* Initialize the String class, returning its prototype object. */ -extern JSClass js_StringClass; - -extern JSObject * -js_InitStringClass(JSContext *cx, JSObject *obj); - -extern const char js_escape_str[]; -extern const char js_unescape_str[]; -extern const char js_uneval_str[]; -extern const char js_decodeURI_str[]; -extern const char js_encodeURI_str[]; -extern const char js_decodeURIComponent_str[]; -extern const char js_encodeURIComponent_str[]; - -/* GC-allocate a string descriptor for the given malloc-allocated chars. */ -extern JSString * -js_NewString(JSContext *cx, jschar *chars, size_t length, uintN gcflag); - -extern JSString * -js_NewDependentString(JSContext *cx, JSString *base, size_t start, - size_t length, uintN gcflag); - -/* Copy a counted string and GC-allocate a descriptor for it. */ -extern JSString * -js_NewStringCopyN(JSContext *cx, const jschar *s, size_t n, uintN gcflag); - -/* Copy a C string and GC-allocate a descriptor for it. */ -extern JSString * -js_NewStringCopyZ(JSContext *cx, const jschar *s, uintN gcflag); - -/* Free the chars held by str when it is finalized by the GC. */ -extern void -js_FinalizeString(JSContext *cx, JSString *str); - -extern void -js_FinalizeStringRT(JSRuntime *rt, JSString *str); - -/* Wrap a string value in a String object. */ -extern JSObject * -js_StringToObject(JSContext *cx, JSString *str); - -/* - * Convert a value to a printable C string. - */ -typedef JSString *(*JSValueToStringFun)(JSContext *cx, jsval v); - -extern JS_FRIEND_API(const char *) -js_ValueToPrintable(JSContext *cx, jsval v, JSValueToStringFun v2sfun); - -#define js_ValueToPrintableString(cx,v) \ - js_ValueToPrintable(cx, v, js_ValueToString) - -#define js_ValueToPrintableSource(cx,v) \ - js_ValueToPrintable(cx, v, js_ValueToSource) - -/* - * Convert a value to a string, returning null after reporting an error, - * otherwise returning a new string reference. - */ -extern JS_FRIEND_API(JSString *) -js_ValueToString(JSContext *cx, jsval v); - -/* - * Convert a value to its source expression, returning null after reporting - * an error, otherwise returning a new string reference. - */ -extern JS_FRIEND_API(JSString *) -js_ValueToSource(JSContext *cx, jsval v); - -#ifdef HT_ENUMERATE_NEXT /* XXX don't require jshash.h */ -/* - * Compute a hash function from str. - */ -extern JSHashNumber -js_HashString(JSString *str); -#endif - -/* - * Return less than, equal to, or greater than zero depending on whether - * str1 is less than, equal to, or greater than str2. - */ -extern intN -js_CompareStrings(JSString *str1, JSString *str2); - -/* - * Test if strings are equal. - */ -extern JSBool -js_EqualStrings(JSString *str1, JSString *str2); - -/* - * Boyer-Moore-Horspool superlinear search for pat:patlen in text:textlen. - * The patlen argument must be positive and no greater than BMH_PATLEN_MAX. - * The start argument tells where in text to begin the search. - * - * Return the index of pat in text, or -1 if not found. - */ -#define BMH_CHARSET_SIZE 256 /* ISO-Latin-1 */ -#define BMH_PATLEN_MAX 255 /* skip table element is uint8 */ - -#define BMH_BAD_PATTERN (-2) /* return value if pat is not ISO-Latin-1 */ - -extern jsint -js_BoyerMooreHorspool(const jschar *text, jsint textlen, - const jschar *pat, jsint patlen, - jsint start); - -extern size_t -js_strlen(const jschar *s); - -extern jschar * -js_strchr(const jschar *s, jschar c); - -extern jschar * -js_strchr_limit(const jschar *s, jschar c, const jschar *limit); - -#define js_strncpy(t, s, n) memcpy((t), (s), (n) * sizeof(jschar)) - -/* - * Return s advanced past any Unicode white space characters. - */ -extern const jschar * -js_SkipWhiteSpace(const jschar *s); - -/* - * Inflate bytes to JS chars and vice versa. Report out of memory via cx - * and return null on error, otherwise return the jschar or byte vector that - * was JS_malloc'ed. length is updated with the length of the new string in jschars. - */ -extern jschar * -js_InflateString(JSContext *cx, const char *bytes, size_t *length); - -extern char * -js_DeflateString(JSContext *cx, const jschar *chars, size_t length); - -/* - * Inflate bytes to JS chars into a buffer. - * 'chars' must be large enough for 'length' jschars. - * The buffer is NOT null-terminated. - * cx may be NULL, which means no errors are thrown. - * The destination length needs to be initialized with the buffer size, takes - * the number of chars moved. - */ -extern JSBool -js_InflateStringToBuffer(JSContext* cx, const char *bytes, size_t length, - jschar *chars, size_t* charsLength); - -/* - * Deflate JS chars to bytes into a buffer. - * 'bytes' must be large enough for 'length chars. - * The buffer is NOT null-terminated. - * cx may be NULL, which means no errors are thrown. - * The destination length needs to be initialized with the buffer size, takes - * the number of bytes moved. - */ -extern JSBool -js_DeflateStringToBuffer(JSContext* cx, const jschar *chars, - size_t charsLength, char *bytes, size_t* length); - -/* - * Associate bytes with str in the deflated string cache, returning true on - * successful association, false on out of memory. - */ -extern JSBool -js_SetStringBytes(JSRuntime *rt, JSString *str, char *bytes, size_t length); - -/* - * Find or create a deflated string cache entry for str that contains its - * characters chopped from Unicode code points into bytes. - */ -extern char * -js_GetStringBytes(JSRuntime *rt, JSString *str); - -/* Remove a deflated string cache entry associated with str if any. */ -extern void -js_PurgeDeflatedStringCache(JSRuntime *rt, JSString *str); - -JSBool -js_str_escape(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, - jsval *rval); - -/* - * Convert one UCS-4 char and write it into a UTF-8 buffer, which must be at - * least 6 bytes long. Return the number of UTF-8 bytes of data written. - */ -extern int -js_OneUcs4ToUtf8Char(uint8 *utf8Buffer, uint32 ucs4Char); - -JS_END_EXTERN_C - -#endif /* jsstr_h___ */ |