0,0 → 1,1651 |
/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd |
See the file COPYING for copying permission. |
*/ |
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#include <stddef.h> |
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#ifdef COMPILED_FROM_DSP |
#include "winconfig.h" |
#elif defined(MACOS_CLASSIC) |
#include "macconfig.h" |
#elif defined(__amigaos__) |
#include "amigaconfig.h" |
#elif defined(__WATCOMC__) |
#include "watcomconfig.h" |
#else |
#ifdef HAVE_EXPAT_CONFIG_H |
#include <expat_config.h> |
#endif |
#endif /* ndef COMPILED_FROM_DSP */ |
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#include "expat_external.h" |
#include "internal.h" |
#include "xmltok.h" |
#include "nametab.h" |
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#ifdef XML_DTD |
#define IGNORE_SECTION_TOK_VTABLE , PREFIX(ignoreSectionTok) |
#else |
#define IGNORE_SECTION_TOK_VTABLE /* as nothing */ |
#endif |
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#define VTABLE1 \ |
{ PREFIX(prologTok), PREFIX(contentTok), \ |
PREFIX(cdataSectionTok) IGNORE_SECTION_TOK_VTABLE }, \ |
{ PREFIX(attributeValueTok), PREFIX(entityValueTok) }, \ |
PREFIX(sameName), \ |
PREFIX(nameMatchesAscii), \ |
PREFIX(nameLength), \ |
PREFIX(skipS), \ |
PREFIX(getAtts), \ |
PREFIX(charRefNumber), \ |
PREFIX(predefinedEntityName), \ |
PREFIX(updatePosition), \ |
PREFIX(isPublicId) |
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#define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16) |
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#define UCS2_GET_NAMING(pages, hi, lo) \ |
(namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F))) |
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/* A 2 byte UTF-8 representation splits the characters 11 bits between |
the bottom 5 and 6 bits of the bytes. We need 8 bits to index into |
pages, 3 bits to add to that index and 5 bits to generate the mask. |
*/ |
#define UTF8_GET_NAMING2(pages, byte) \ |
(namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \ |
+ ((((byte)[0]) & 3) << 1) \ |
+ ((((byte)[1]) >> 5) & 1)] \ |
& (1 << (((byte)[1]) & 0x1F))) |
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/* A 3 byte UTF-8 representation splits the characters 16 bits between |
the bottom 4, 6 and 6 bits of the bytes. We need 8 bits to index |
into pages, 3 bits to add to that index and 5 bits to generate the |
mask. |
*/ |
#define UTF8_GET_NAMING3(pages, byte) \ |
(namingBitmap[((pages)[((((byte)[0]) & 0xF) << 4) \ |
+ ((((byte)[1]) >> 2) & 0xF)] \ |
<< 3) \ |
+ ((((byte)[1]) & 3) << 1) \ |
+ ((((byte)[2]) >> 5) & 1)] \ |
& (1 << (((byte)[2]) & 0x1F))) |
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#define UTF8_GET_NAMING(pages, p, n) \ |
((n) == 2 \ |
? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \ |
: ((n) == 3 \ |
? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) \ |
: 0)) |
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/* Detection of invalid UTF-8 sequences is based on Table 3.1B |
of Unicode 3.2: http://www.unicode.org/unicode/reports/tr28/ |
with the additional restriction of not allowing the Unicode |
code points 0xFFFF and 0xFFFE (sequences EF,BF,BF and EF,BF,BE). |
Implementation details: |
(A & 0x80) == 0 means A < 0x80 |
and |
(A & 0xC0) == 0xC0 means A > 0xBF |
*/ |
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#define UTF8_INVALID2(p) \ |
((*p) < 0xC2 || ((p)[1] & 0x80) == 0 || ((p)[1] & 0xC0) == 0xC0) |
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#define UTF8_INVALID3(p) \ |
(((p)[2] & 0x80) == 0 \ |
|| \ |
((*p) == 0xEF && (p)[1] == 0xBF \ |
? \ |
(p)[2] > 0xBD \ |
: \ |
((p)[2] & 0xC0) == 0xC0) \ |
|| \ |
((*p) == 0xE0 \ |
? \ |
(p)[1] < 0xA0 || ((p)[1] & 0xC0) == 0xC0 \ |
: \ |
((p)[1] & 0x80) == 0 \ |
|| \ |
((*p) == 0xED ? (p)[1] > 0x9F : ((p)[1] & 0xC0) == 0xC0))) |
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#define UTF8_INVALID4(p) \ |
(((p)[3] & 0x80) == 0 || ((p)[3] & 0xC0) == 0xC0 \ |
|| \ |
((p)[2] & 0x80) == 0 || ((p)[2] & 0xC0) == 0xC0 \ |
|| \ |
((*p) == 0xF0 \ |
? \ |
(p)[1] < 0x90 || ((p)[1] & 0xC0) == 0xC0 \ |
: \ |
((p)[1] & 0x80) == 0 \ |
|| \ |
((*p) == 0xF4 ? (p)[1] > 0x8F : ((p)[1] & 0xC0) == 0xC0))) |
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static int PTRFASTCALL |
isNever(const ENCODING *enc, const char *p) |
{ |
return 0; |
} |
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static int PTRFASTCALL |
utf8_isName2(const ENCODING *enc, const char *p) |
{ |
return UTF8_GET_NAMING2(namePages, (const unsigned char *)p); |
} |
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static int PTRFASTCALL |
utf8_isName3(const ENCODING *enc, const char *p) |
{ |
return UTF8_GET_NAMING3(namePages, (const unsigned char *)p); |
} |
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#define utf8_isName4 isNever |
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static int PTRFASTCALL |
utf8_isNmstrt2(const ENCODING *enc, const char *p) |
{ |
return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p); |
} |
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static int PTRFASTCALL |
utf8_isNmstrt3(const ENCODING *enc, const char *p) |
{ |
return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p); |
} |
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#define utf8_isNmstrt4 isNever |
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static int PTRFASTCALL |
utf8_isInvalid2(const ENCODING *enc, const char *p) |
{ |
return UTF8_INVALID2((const unsigned char *)p); |
} |
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static int PTRFASTCALL |
utf8_isInvalid3(const ENCODING *enc, const char *p) |
{ |
return UTF8_INVALID3((const unsigned char *)p); |
} |
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static int PTRFASTCALL |
utf8_isInvalid4(const ENCODING *enc, const char *p) |
{ |
return UTF8_INVALID4((const unsigned char *)p); |
} |
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struct normal_encoding { |
ENCODING enc; |
unsigned char type[256]; |
#ifdef XML_MIN_SIZE |
int (PTRFASTCALL *byteType)(const ENCODING *, const char *); |
int (PTRFASTCALL *isNameMin)(const ENCODING *, const char *); |
int (PTRFASTCALL *isNmstrtMin)(const ENCODING *, const char *); |
int (PTRFASTCALL *byteToAscii)(const ENCODING *, const char *); |
int (PTRCALL *charMatches)(const ENCODING *, const char *, int); |
#endif /* XML_MIN_SIZE */ |
int (PTRFASTCALL *isName2)(const ENCODING *, const char *); |
int (PTRFASTCALL *isName3)(const ENCODING *, const char *); |
int (PTRFASTCALL *isName4)(const ENCODING *, const char *); |
int (PTRFASTCALL *isNmstrt2)(const ENCODING *, const char *); |
int (PTRFASTCALL *isNmstrt3)(const ENCODING *, const char *); |
int (PTRFASTCALL *isNmstrt4)(const ENCODING *, const char *); |
int (PTRFASTCALL *isInvalid2)(const ENCODING *, const char *); |
int (PTRFASTCALL *isInvalid3)(const ENCODING *, const char *); |
int (PTRFASTCALL *isInvalid4)(const ENCODING *, const char *); |
}; |
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#define AS_NORMAL_ENCODING(enc) ((const struct normal_encoding *) (enc)) |
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#ifdef XML_MIN_SIZE |
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#define STANDARD_VTABLE(E) \ |
E ## byteType, \ |
E ## isNameMin, \ |
E ## isNmstrtMin, \ |
E ## byteToAscii, \ |
E ## charMatches, |
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#else |
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#define STANDARD_VTABLE(E) /* as nothing */ |
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#endif |
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#define NORMAL_VTABLE(E) \ |
E ## isName2, \ |
E ## isName3, \ |
E ## isName4, \ |
E ## isNmstrt2, \ |
E ## isNmstrt3, \ |
E ## isNmstrt4, \ |
E ## isInvalid2, \ |
E ## isInvalid3, \ |
E ## isInvalid4 |
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static int FASTCALL checkCharRefNumber(int); |
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#include "xmltok_impl.h" |
#include "ascii.h" |
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#ifdef XML_MIN_SIZE |
#define sb_isNameMin isNever |
#define sb_isNmstrtMin isNever |
#endif |
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#ifdef XML_MIN_SIZE |
#define MINBPC(enc) ((enc)->minBytesPerChar) |
#else |
/* minimum bytes per character */ |
#define MINBPC(enc) 1 |
#endif |
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#define SB_BYTE_TYPE(enc, p) \ |
(((struct normal_encoding *)(enc))->type[(unsigned char)*(p)]) |
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#ifdef XML_MIN_SIZE |
static int PTRFASTCALL |
sb_byteType(const ENCODING *enc, const char *p) |
{ |
return SB_BYTE_TYPE(enc, p); |
} |
#define BYTE_TYPE(enc, p) \ |
(AS_NORMAL_ENCODING(enc)->byteType(enc, p)) |
#else |
#define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p) |
#endif |
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#ifdef XML_MIN_SIZE |
#define BYTE_TO_ASCII(enc, p) \ |
(AS_NORMAL_ENCODING(enc)->byteToAscii(enc, p)) |
static int PTRFASTCALL |
sb_byteToAscii(const ENCODING *enc, const char *p) |
{ |
return *p; |
} |
#else |
#define BYTE_TO_ASCII(enc, p) (*(p)) |
#endif |
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#define IS_NAME_CHAR(enc, p, n) \ |
(AS_NORMAL_ENCODING(enc)->isName ## n(enc, p)) |
#define IS_NMSTRT_CHAR(enc, p, n) \ |
(AS_NORMAL_ENCODING(enc)->isNmstrt ## n(enc, p)) |
#define IS_INVALID_CHAR(enc, p, n) \ |
(AS_NORMAL_ENCODING(enc)->isInvalid ## n(enc, p)) |
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#ifdef XML_MIN_SIZE |
#define IS_NAME_CHAR_MINBPC(enc, p) \ |
(AS_NORMAL_ENCODING(enc)->isNameMin(enc, p)) |
#define IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
(AS_NORMAL_ENCODING(enc)->isNmstrtMin(enc, p)) |
#else |
#define IS_NAME_CHAR_MINBPC(enc, p) (0) |
#define IS_NMSTRT_CHAR_MINBPC(enc, p) (0) |
#endif |
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#ifdef XML_MIN_SIZE |
#define CHAR_MATCHES(enc, p, c) \ |
(AS_NORMAL_ENCODING(enc)->charMatches(enc, p, c)) |
static int PTRCALL |
sb_charMatches(const ENCODING *enc, const char *p, int c) |
{ |
return *p == c; |
} |
#else |
/* c is an ASCII character */ |
#define CHAR_MATCHES(enc, p, c) (*(p) == c) |
#endif |
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#define PREFIX(ident) normal_ ## ident |
#define XML_TOK_IMPL_C |
#include "xmltok_impl.c" |
#undef XML_TOK_IMPL_C |
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#undef MINBPC |
#undef BYTE_TYPE |
#undef BYTE_TO_ASCII |
#undef CHAR_MATCHES |
#undef IS_NAME_CHAR |
#undef IS_NAME_CHAR_MINBPC |
#undef IS_NMSTRT_CHAR |
#undef IS_NMSTRT_CHAR_MINBPC |
#undef IS_INVALID_CHAR |
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enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */ |
UTF8_cval1 = 0x00, |
UTF8_cval2 = 0xc0, |
UTF8_cval3 = 0xe0, |
UTF8_cval4 = 0xf0 |
}; |
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static void PTRCALL |
utf8_toUtf8(const ENCODING *enc, |
const char **fromP, const char *fromLim, |
char **toP, const char *toLim) |
{ |
char *to; |
const char *from; |
if (fromLim - *fromP > toLim - *toP) { |
/* Avoid copying partial characters. */ |
for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--) |
if (((unsigned char)fromLim[-1] & 0xc0) != 0x80) |
break; |
} |
for (to = *toP, from = *fromP; from != fromLim; from++, to++) |
*to = *from; |
*fromP = from; |
*toP = to; |
} |
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static void PTRCALL |
utf8_toUtf16(const ENCODING *enc, |
const char **fromP, const char *fromLim, |
unsigned short **toP, const unsigned short *toLim) |
{ |
unsigned short *to = *toP; |
const char *from = *fromP; |
while (from != fromLim && to != toLim) { |
switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) { |
case BT_LEAD2: |
*to++ = (unsigned short)(((from[0] & 0x1f) << 6) | (from[1] & 0x3f)); |
from += 2; |
break; |
case BT_LEAD3: |
*to++ = (unsigned short)(((from[0] & 0xf) << 12) |
| ((from[1] & 0x3f) << 6) | (from[2] & 0x3f)); |
from += 3; |
break; |
case BT_LEAD4: |
{ |
unsigned long n; |
if (to + 1 == toLim) |
goto after; |
n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12) |
| ((from[2] & 0x3f) << 6) | (from[3] & 0x3f); |
n -= 0x10000; |
to[0] = (unsigned short)((n >> 10) | 0xD800); |
to[1] = (unsigned short)((n & 0x3FF) | 0xDC00); |
to += 2; |
from += 4; |
} |
break; |
default: |
*to++ = *from++; |
break; |
} |
} |
after: |
*fromP = from; |
*toP = to; |
} |
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#ifdef XML_NS |
static const struct normal_encoding utf8_encoding_ns = { |
{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
{ |
#include "asciitab.h" |
#include "utf8tab.h" |
}, |
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
}; |
#endif |
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static const struct normal_encoding utf8_encoding = { |
{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
{ |
#define BT_COLON BT_NMSTRT |
#include "asciitab.h" |
#undef BT_COLON |
#include "utf8tab.h" |
}, |
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
}; |
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#ifdef XML_NS |
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static const struct normal_encoding internal_utf8_encoding_ns = { |
{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
{ |
#include "iasciitab.h" |
#include "utf8tab.h" |
}, |
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
}; |
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#endif |
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static const struct normal_encoding internal_utf8_encoding = { |
{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
{ |
#define BT_COLON BT_NMSTRT |
#include "iasciitab.h" |
#undef BT_COLON |
#include "utf8tab.h" |
}, |
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
}; |
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static void PTRCALL |
latin1_toUtf8(const ENCODING *enc, |
const char **fromP, const char *fromLim, |
char **toP, const char *toLim) |
{ |
for (;;) { |
unsigned char c; |
if (*fromP == fromLim) |
break; |
c = (unsigned char)**fromP; |
if (c & 0x80) { |
if (toLim - *toP < 2) |
break; |
*(*toP)++ = (char)((c >> 6) | UTF8_cval2); |
*(*toP)++ = (char)((c & 0x3f) | 0x80); |
(*fromP)++; |
} |
else { |
if (*toP == toLim) |
break; |
*(*toP)++ = *(*fromP)++; |
} |
} |
} |
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static void PTRCALL |
latin1_toUtf16(const ENCODING *enc, |
const char **fromP, const char *fromLim, |
unsigned short **toP, const unsigned short *toLim) |
{ |
while (*fromP != fromLim && *toP != toLim) |
*(*toP)++ = (unsigned char)*(*fromP)++; |
} |
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#ifdef XML_NS |
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static const struct normal_encoding latin1_encoding_ns = { |
{ VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
{ |
#include "asciitab.h" |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(sb_) |
}; |
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#endif |
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static const struct normal_encoding latin1_encoding = { |
{ VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
{ |
#define BT_COLON BT_NMSTRT |
#include "asciitab.h" |
#undef BT_COLON |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(sb_) |
}; |
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static void PTRCALL |
ascii_toUtf8(const ENCODING *enc, |
const char **fromP, const char *fromLim, |
char **toP, const char *toLim) |
{ |
while (*fromP != fromLim && *toP != toLim) |
*(*toP)++ = *(*fromP)++; |
} |
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#ifdef XML_NS |
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static const struct normal_encoding ascii_encoding_ns = { |
{ VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
{ |
#include "asciitab.h" |
/* BT_NONXML == 0 */ |
}, |
STANDARD_VTABLE(sb_) |
}; |
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#endif |
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static const struct normal_encoding ascii_encoding = { |
{ VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
{ |
#define BT_COLON BT_NMSTRT |
#include "asciitab.h" |
#undef BT_COLON |
/* BT_NONXML == 0 */ |
}, |
STANDARD_VTABLE(sb_) |
}; |
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static int PTRFASTCALL |
unicode_byte_type(char hi, char lo) |
{ |
switch ((unsigned char)hi) { |
case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
return BT_LEAD4; |
case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
return BT_TRAIL; |
case 0xFF: |
switch ((unsigned char)lo) { |
case 0xFF: |
case 0xFE: |
return BT_NONXML; |
} |
break; |
} |
return BT_NONASCII; |
} |
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#define DEFINE_UTF16_TO_UTF8(E) \ |
static void PTRCALL \ |
E ## toUtf8(const ENCODING *enc, \ |
const char **fromP, const char *fromLim, \ |
char **toP, const char *toLim) \ |
{ \ |
const char *from; \ |
for (from = *fromP; from != fromLim; from += 2) { \ |
int plane; \ |
unsigned char lo2; \ |
unsigned char lo = GET_LO(from); \ |
unsigned char hi = GET_HI(from); \ |
switch (hi) { \ |
case 0: \ |
if (lo < 0x80) { \ |
if (*toP == toLim) { \ |
*fromP = from; \ |
return; \ |
} \ |
*(*toP)++ = lo; \ |
break; \ |
} \ |
/* fall through */ \ |
case 0x1: case 0x2: case 0x3: \ |
case 0x4: case 0x5: case 0x6: case 0x7: \ |
if (toLim - *toP < 2) { \ |
*fromP = from; \ |
return; \ |
} \ |
*(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \ |
*(*toP)++ = ((lo & 0x3f) | 0x80); \ |
break; \ |
default: \ |
if (toLim - *toP < 3) { \ |
*fromP = from; \ |
return; \ |
} \ |
/* 16 bits divided 4, 6, 6 amongst 3 bytes */ \ |
*(*toP)++ = ((hi >> 4) | UTF8_cval3); \ |
*(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \ |
*(*toP)++ = ((lo & 0x3f) | 0x80); \ |
break; \ |
case 0xD8: case 0xD9: case 0xDA: case 0xDB: \ |
if (toLim - *toP < 4) { \ |
*fromP = from; \ |
return; \ |
} \ |
plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \ |
*(*toP)++ = ((plane >> 2) | UTF8_cval4); \ |
*(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \ |
from += 2; \ |
lo2 = GET_LO(from); \ |
*(*toP)++ = (((lo & 0x3) << 4) \ |
| ((GET_HI(from) & 0x3) << 2) \ |
| (lo2 >> 6) \ |
| 0x80); \ |
*(*toP)++ = ((lo2 & 0x3f) | 0x80); \ |
break; \ |
} \ |
} \ |
*fromP = from; \ |
} |
|
#define DEFINE_UTF16_TO_UTF16(E) \ |
static void PTRCALL \ |
E ## toUtf16(const ENCODING *enc, \ |
const char **fromP, const char *fromLim, \ |
unsigned short **toP, const unsigned short *toLim) \ |
{ \ |
/* Avoid copying first half only of surrogate */ \ |
if (fromLim - *fromP > ((toLim - *toP) << 1) \ |
&& (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \ |
fromLim -= 2; \ |
for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \ |
*(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \ |
} |
|
#define SET2(ptr, ch) \ |
(((ptr)[0] = ((ch) & 0xff)), ((ptr)[1] = ((ch) >> 8))) |
#define GET_LO(ptr) ((unsigned char)(ptr)[0]) |
#define GET_HI(ptr) ((unsigned char)(ptr)[1]) |
|
DEFINE_UTF16_TO_UTF8(little2_) |
DEFINE_UTF16_TO_UTF16(little2_) |
|
#undef SET2 |
#undef GET_LO |
#undef GET_HI |
|
#define SET2(ptr, ch) \ |
(((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch) & 0xFF))) |
#define GET_LO(ptr) ((unsigned char)(ptr)[1]) |
#define GET_HI(ptr) ((unsigned char)(ptr)[0]) |
|
DEFINE_UTF16_TO_UTF8(big2_) |
DEFINE_UTF16_TO_UTF16(big2_) |
|
#undef SET2 |
#undef GET_LO |
#undef GET_HI |
|
#define LITTLE2_BYTE_TYPE(enc, p) \ |
((p)[1] == 0 \ |
? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \ |
: unicode_byte_type((p)[1], (p)[0])) |
#define LITTLE2_BYTE_TO_ASCII(enc, p) ((p)[1] == 0 ? (p)[0] : -1) |
#define LITTLE2_CHAR_MATCHES(enc, p, c) ((p)[1] == 0 && (p)[0] == c) |
#define LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) \ |
UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0]) |
#define LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0]) |
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#ifdef XML_MIN_SIZE |
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static int PTRFASTCALL |
little2_byteType(const ENCODING *enc, const char *p) |
{ |
return LITTLE2_BYTE_TYPE(enc, p); |
} |
|
static int PTRFASTCALL |
little2_byteToAscii(const ENCODING *enc, const char *p) |
{ |
return LITTLE2_BYTE_TO_ASCII(enc, p); |
} |
|
static int PTRCALL |
little2_charMatches(const ENCODING *enc, const char *p, int c) |
{ |
return LITTLE2_CHAR_MATCHES(enc, p, c); |
} |
|
static int PTRFASTCALL |
little2_isNameMin(const ENCODING *enc, const char *p) |
{ |
return LITTLE2_IS_NAME_CHAR_MINBPC(enc, p); |
} |
|
static int PTRFASTCALL |
little2_isNmstrtMin(const ENCODING *enc, const char *p) |
{ |
return LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
} |
|
#undef VTABLE |
#define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16 |
|
#else /* not XML_MIN_SIZE */ |
|
#undef PREFIX |
#define PREFIX(ident) little2_ ## ident |
#define MINBPC(enc) 2 |
/* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
#define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p) |
#define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(enc, p) |
#define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(enc, p, c) |
#define IS_NAME_CHAR(enc, p, n) 0 |
#define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) |
#define IS_NMSTRT_CHAR(enc, p, n) (0) |
#define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
|
#define XML_TOK_IMPL_C |
#include "xmltok_impl.c" |
#undef XML_TOK_IMPL_C |
|
#undef MINBPC |
#undef BYTE_TYPE |
#undef BYTE_TO_ASCII |
#undef CHAR_MATCHES |
#undef IS_NAME_CHAR |
#undef IS_NAME_CHAR_MINBPC |
#undef IS_NMSTRT_CHAR |
#undef IS_NMSTRT_CHAR_MINBPC |
#undef IS_INVALID_CHAR |
|
#endif /* not XML_MIN_SIZE */ |
|
#ifdef XML_NS |
|
static const struct normal_encoding little2_encoding_ns = { |
{ VTABLE, 2, 0, |
#if BYTEORDER == 1234 |
1 |
#else |
0 |
#endif |
}, |
{ |
#include "asciitab.h" |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(little2_) |
}; |
|
#endif |
|
static const struct normal_encoding little2_encoding = { |
{ VTABLE, 2, 0, |
#if BYTEORDER == 1234 |
1 |
#else |
0 |
#endif |
}, |
{ |
#define BT_COLON BT_NMSTRT |
#include "asciitab.h" |
#undef BT_COLON |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(little2_) |
}; |
|
#if BYTEORDER != 4321 |
|
#ifdef XML_NS |
|
static const struct normal_encoding internal_little2_encoding_ns = { |
{ VTABLE, 2, 0, 1 }, |
{ |
#include "iasciitab.h" |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(little2_) |
}; |
|
#endif |
|
static const struct normal_encoding internal_little2_encoding = { |
{ VTABLE, 2, 0, 1 }, |
{ |
#define BT_COLON BT_NMSTRT |
#include "iasciitab.h" |
#undef BT_COLON |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(little2_) |
}; |
|
#endif |
|
|
#define BIG2_BYTE_TYPE(enc, p) \ |
((p)[0] == 0 \ |
? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \ |
: unicode_byte_type((p)[0], (p)[1])) |
#define BIG2_BYTE_TO_ASCII(enc, p) ((p)[0] == 0 ? (p)[1] : -1) |
#define BIG2_CHAR_MATCHES(enc, p, c) ((p)[0] == 0 && (p)[1] == c) |
#define BIG2_IS_NAME_CHAR_MINBPC(enc, p) \ |
UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1]) |
#define BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1]) |
|
#ifdef XML_MIN_SIZE |
|
static int PTRFASTCALL |
big2_byteType(const ENCODING *enc, const char *p) |
{ |
return BIG2_BYTE_TYPE(enc, p); |
} |
|
static int PTRFASTCALL |
big2_byteToAscii(const ENCODING *enc, const char *p) |
{ |
return BIG2_BYTE_TO_ASCII(enc, p); |
} |
|
static int PTRCALL |
big2_charMatches(const ENCODING *enc, const char *p, int c) |
{ |
return BIG2_CHAR_MATCHES(enc, p, c); |
} |
|
static int PTRFASTCALL |
big2_isNameMin(const ENCODING *enc, const char *p) |
{ |
return BIG2_IS_NAME_CHAR_MINBPC(enc, p); |
} |
|
static int PTRFASTCALL |
big2_isNmstrtMin(const ENCODING *enc, const char *p) |
{ |
return BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
} |
|
#undef VTABLE |
#define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16 |
|
#else /* not XML_MIN_SIZE */ |
|
#undef PREFIX |
#define PREFIX(ident) big2_ ## ident |
#define MINBPC(enc) 2 |
/* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
#define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p) |
#define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(enc, p) |
#define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(enc, p, c) |
#define IS_NAME_CHAR(enc, p, n) 0 |
#define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(enc, p) |
#define IS_NMSTRT_CHAR(enc, p, n) (0) |
#define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
|
#define XML_TOK_IMPL_C |
#include "xmltok_impl.c" |
#undef XML_TOK_IMPL_C |
|
#undef MINBPC |
#undef BYTE_TYPE |
#undef BYTE_TO_ASCII |
#undef CHAR_MATCHES |
#undef IS_NAME_CHAR |
#undef IS_NAME_CHAR_MINBPC |
#undef IS_NMSTRT_CHAR |
#undef IS_NMSTRT_CHAR_MINBPC |
#undef IS_INVALID_CHAR |
|
#endif /* not XML_MIN_SIZE */ |
|
#ifdef XML_NS |
|
static const struct normal_encoding big2_encoding_ns = { |
{ VTABLE, 2, 0, |
#if BYTEORDER == 4321 |
1 |
#else |
0 |
#endif |
}, |
{ |
#include "asciitab.h" |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(big2_) |
}; |
|
#endif |
|
static const struct normal_encoding big2_encoding = { |
{ VTABLE, 2, 0, |
#if BYTEORDER == 4321 |
1 |
#else |
0 |
#endif |
}, |
{ |
#define BT_COLON BT_NMSTRT |
#include "asciitab.h" |
#undef BT_COLON |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(big2_) |
}; |
|
#if BYTEORDER != 1234 |
|
#ifdef XML_NS |
|
static const struct normal_encoding internal_big2_encoding_ns = { |
{ VTABLE, 2, 0, 1 }, |
{ |
#include "iasciitab.h" |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(big2_) |
}; |
|
#endif |
|
static const struct normal_encoding internal_big2_encoding = { |
{ VTABLE, 2, 0, 1 }, |
{ |
#define BT_COLON BT_NMSTRT |
#include "iasciitab.h" |
#undef BT_COLON |
#include "latin1tab.h" |
}, |
STANDARD_VTABLE(big2_) |
}; |
|
#endif |
|
#undef PREFIX |
|
static int FASTCALL |
streqci(const char *s1, const char *s2) |
{ |
for (;;) { |
char c1 = *s1++; |
char c2 = *s2++; |
if (ASCII_a <= c1 && c1 <= ASCII_z) |
c1 += ASCII_A - ASCII_a; |
if (ASCII_a <= c2 && c2 <= ASCII_z) |
c2 += ASCII_A - ASCII_a; |
if (c1 != c2) |
return 0; |
if (!c1) |
break; |
} |
return 1; |
} |
|
static void PTRCALL |
initUpdatePosition(const ENCODING *enc, const char *ptr, |
const char *end, POSITION *pos) |
{ |
normal_updatePosition(&utf8_encoding.enc, ptr, end, pos); |
} |
|
static int |
toAscii(const ENCODING *enc, const char *ptr, const char *end) |
{ |
char buf[1]; |
char *p = buf; |
XmlUtf8Convert(enc, &ptr, end, &p, p + 1); |
if (p == buf) |
return -1; |
else |
return buf[0]; |
} |
|
static int FASTCALL |
isSpace(int c) |
{ |
switch (c) { |
case 0x20: |
case 0xD: |
case 0xA: |
case 0x9: |
return 1; |
} |
return 0; |
} |
|
/* Return 1 if there's just optional white space or there's an S |
followed by name=val. |
*/ |
static int |
parsePseudoAttribute(const ENCODING *enc, |
const char *ptr, |
const char *end, |
const char **namePtr, |
const char **nameEndPtr, |
const char **valPtr, |
const char **nextTokPtr) |
{ |
int c; |
char open; |
if (ptr == end) { |
*namePtr = NULL; |
return 1; |
} |
if (!isSpace(toAscii(enc, ptr, end))) { |
*nextTokPtr = ptr; |
return 0; |
} |
do { |
ptr += enc->minBytesPerChar; |
} while (isSpace(toAscii(enc, ptr, end))); |
if (ptr == end) { |
*namePtr = NULL; |
return 1; |
} |
*namePtr = ptr; |
for (;;) { |
c = toAscii(enc, ptr, end); |
if (c == -1) { |
*nextTokPtr = ptr; |
return 0; |
} |
if (c == ASCII_EQUALS) { |
*nameEndPtr = ptr; |
break; |
} |
if (isSpace(c)) { |
*nameEndPtr = ptr; |
do { |
ptr += enc->minBytesPerChar; |
} while (isSpace(c = toAscii(enc, ptr, end))); |
if (c != ASCII_EQUALS) { |
*nextTokPtr = ptr; |
return 0; |
} |
break; |
} |
ptr += enc->minBytesPerChar; |
} |
if (ptr == *namePtr) { |
*nextTokPtr = ptr; |
return 0; |
} |
ptr += enc->minBytesPerChar; |
c = toAscii(enc, ptr, end); |
while (isSpace(c)) { |
ptr += enc->minBytesPerChar; |
c = toAscii(enc, ptr, end); |
} |
if (c != ASCII_QUOT && c != ASCII_APOS) { |
*nextTokPtr = ptr; |
return 0; |
} |
open = (char)c; |
ptr += enc->minBytesPerChar; |
*valPtr = ptr; |
for (;; ptr += enc->minBytesPerChar) { |
c = toAscii(enc, ptr, end); |
if (c == open) |
break; |
if (!(ASCII_a <= c && c <= ASCII_z) |
&& !(ASCII_A <= c && c <= ASCII_Z) |
&& !(ASCII_0 <= c && c <= ASCII_9) |
&& c != ASCII_PERIOD |
&& c != ASCII_MINUS |
&& c != ASCII_UNDERSCORE) { |
*nextTokPtr = ptr; |
return 0; |
} |
} |
*nextTokPtr = ptr + enc->minBytesPerChar; |
return 1; |
} |
|
static const char KW_version[] = { |
ASCII_v, ASCII_e, ASCII_r, ASCII_s, ASCII_i, ASCII_o, ASCII_n, '\0' |
}; |
|
static const char KW_encoding[] = { |
ASCII_e, ASCII_n, ASCII_c, ASCII_o, ASCII_d, ASCII_i, ASCII_n, ASCII_g, '\0' |
}; |
|
static const char KW_standalone[] = { |
ASCII_s, ASCII_t, ASCII_a, ASCII_n, ASCII_d, ASCII_a, ASCII_l, ASCII_o, |
ASCII_n, ASCII_e, '\0' |
}; |
|
static const char KW_yes[] = { |
ASCII_y, ASCII_e, ASCII_s, '\0' |
}; |
|
static const char KW_no[] = { |
ASCII_n, ASCII_o, '\0' |
}; |
|
static int |
doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *, |
const char *, |
const char *), |
int isGeneralTextEntity, |
const ENCODING *enc, |
const char *ptr, |
const char *end, |
const char **badPtr, |
const char **versionPtr, |
const char **versionEndPtr, |
const char **encodingName, |
const ENCODING **encoding, |
int *standalone) |
{ |
const char *val = NULL; |
const char *name = NULL; |
const char *nameEnd = NULL; |
ptr += 5 * enc->minBytesPerChar; |
end -= 2 * enc->minBytesPerChar; |
if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr) |
|| !name) { |
*badPtr = ptr; |
return 0; |
} |
if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_version)) { |
if (!isGeneralTextEntity) { |
*badPtr = name; |
return 0; |
} |
} |
else { |
if (versionPtr) |
*versionPtr = val; |
if (versionEndPtr) |
*versionEndPtr = ptr; |
if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) { |
*badPtr = ptr; |
return 0; |
} |
if (!name) { |
if (isGeneralTextEntity) { |
/* a TextDecl must have an EncodingDecl */ |
*badPtr = ptr; |
return 0; |
} |
return 1; |
} |
} |
if (XmlNameMatchesAscii(enc, name, nameEnd, KW_encoding)) { |
int c = toAscii(enc, val, end); |
if (!(ASCII_a <= c && c <= ASCII_z) && !(ASCII_A <= c && c <= ASCII_Z)) { |
*badPtr = val; |
return 0; |
} |
if (encodingName) |
*encodingName = val; |
if (encoding) |
*encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar); |
if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) { |
*badPtr = ptr; |
return 0; |
} |
if (!name) |
return 1; |
} |
if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_standalone) |
|| isGeneralTextEntity) { |
*badPtr = name; |
return 0; |
} |
if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_yes)) { |
if (standalone) |
*standalone = 1; |
} |
else if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_no)) { |
if (standalone) |
*standalone = 0; |
} |
else { |
*badPtr = val; |
return 0; |
} |
while (isSpace(toAscii(enc, ptr, end))) |
ptr += enc->minBytesPerChar; |
if (ptr != end) { |
*badPtr = ptr; |
return 0; |
} |
return 1; |
} |
|
static int FASTCALL |
checkCharRefNumber(int result) |
{ |
switch (result >> 8) { |
case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
return -1; |
case 0: |
if (latin1_encoding.type[result] == BT_NONXML) |
return -1; |
break; |
case 0xFF: |
if (result == 0xFFFE || result == 0xFFFF) |
return -1; |
break; |
} |
return result; |
} |
|
int FASTCALL |
XmlUtf8Encode(int c, char *buf) |
{ |
enum { |
/* minN is minimum legal resulting value for N byte sequence */ |
min2 = 0x80, |
min3 = 0x800, |
min4 = 0x10000 |
}; |
|
if (c < 0) |
return 0; |
if (c < min2) { |
buf[0] = (char)(c | UTF8_cval1); |
return 1; |
} |
if (c < min3) { |
buf[0] = (char)((c >> 6) | UTF8_cval2); |
buf[1] = (char)((c & 0x3f) | 0x80); |
return 2; |
} |
if (c < min4) { |
buf[0] = (char)((c >> 12) | UTF8_cval3); |
buf[1] = (char)(((c >> 6) & 0x3f) | 0x80); |
buf[2] = (char)((c & 0x3f) | 0x80); |
return 3; |
} |
if (c < 0x110000) { |
buf[0] = (char)((c >> 18) | UTF8_cval4); |
buf[1] = (char)(((c >> 12) & 0x3f) | 0x80); |
buf[2] = (char)(((c >> 6) & 0x3f) | 0x80); |
buf[3] = (char)((c & 0x3f) | 0x80); |
return 4; |
} |
return 0; |
} |
|
int FASTCALL |
XmlUtf16Encode(int charNum, unsigned short *buf) |
{ |
if (charNum < 0) |
return 0; |
if (charNum < 0x10000) { |
buf[0] = (unsigned short)charNum; |
return 1; |
} |
if (charNum < 0x110000) { |
charNum -= 0x10000; |
buf[0] = (unsigned short)((charNum >> 10) + 0xD800); |
buf[1] = (unsigned short)((charNum & 0x3FF) + 0xDC00); |
return 2; |
} |
return 0; |
} |
|
struct unknown_encoding { |
struct normal_encoding normal; |
CONVERTER convert; |
void *userData; |
unsigned short utf16[256]; |
char utf8[256][4]; |
}; |
|
#define AS_UNKNOWN_ENCODING(enc) ((const struct unknown_encoding *) (enc)) |
|
int |
XmlSizeOfUnknownEncoding(void) |
{ |
return sizeof(struct unknown_encoding); |
} |
|
static int PTRFASTCALL |
unknown_isName(const ENCODING *enc, const char *p) |
{ |
const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
int c = uenc->convert(uenc->userData, p); |
if (c & ~0xFFFF) |
return 0; |
return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF); |
} |
|
static int PTRFASTCALL |
unknown_isNmstrt(const ENCODING *enc, const char *p) |
{ |
const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
int c = uenc->convert(uenc->userData, p); |
if (c & ~0xFFFF) |
return 0; |
return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF); |
} |
|
static int PTRFASTCALL |
unknown_isInvalid(const ENCODING *enc, const char *p) |
{ |
const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
int c = uenc->convert(uenc->userData, p); |
return (c & ~0xFFFF) || checkCharRefNumber(c) < 0; |
} |
|
static void PTRCALL |
unknown_toUtf8(const ENCODING *enc, |
const char **fromP, const char *fromLim, |
char **toP, const char *toLim) |
{ |
const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
char buf[XML_UTF8_ENCODE_MAX]; |
for (;;) { |
const char *utf8; |
int n; |
if (*fromP == fromLim) |
break; |
utf8 = uenc->utf8[(unsigned char)**fromP]; |
n = *utf8++; |
if (n == 0) { |
int c = uenc->convert(uenc->userData, *fromP); |
n = XmlUtf8Encode(c, buf); |
if (n > toLim - *toP) |
break; |
utf8 = buf; |
*fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP] |
- (BT_LEAD2 - 2)); |
} |
else { |
if (n > toLim - *toP) |
break; |
(*fromP)++; |
} |
do { |
*(*toP)++ = *utf8++; |
} while (--n != 0); |
} |
} |
|
static void PTRCALL |
unknown_toUtf16(const ENCODING *enc, |
const char **fromP, const char *fromLim, |
unsigned short **toP, const unsigned short *toLim) |
{ |
const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
while (*fromP != fromLim && *toP != toLim) { |
unsigned short c = uenc->utf16[(unsigned char)**fromP]; |
if (c == 0) { |
c = (unsigned short) |
uenc->convert(uenc->userData, *fromP); |
*fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP] |
- (BT_LEAD2 - 2)); |
} |
else |
(*fromP)++; |
*(*toP)++ = c; |
} |
} |
|
ENCODING * |
XmlInitUnknownEncoding(void *mem, |
int *table, |
CONVERTER convert, |
void *userData) |
{ |
int i; |
struct unknown_encoding *e = (struct unknown_encoding *)mem; |
for (i = 0; i < (int)sizeof(struct normal_encoding); i++) |
((char *)mem)[i] = ((char *)&latin1_encoding)[i]; |
for (i = 0; i < 128; i++) |
if (latin1_encoding.type[i] != BT_OTHER |
&& latin1_encoding.type[i] != BT_NONXML |
&& table[i] != i) |
return 0; |
for (i = 0; i < 256; i++) { |
int c = table[i]; |
if (c == -1) { |
e->normal.type[i] = BT_MALFORM; |
/* This shouldn't really get used. */ |
e->utf16[i] = 0xFFFF; |
e->utf8[i][0] = 1; |
e->utf8[i][1] = 0; |
} |
else if (c < 0) { |
if (c < -4) |
return 0; |
e->normal.type[i] = (unsigned char)(BT_LEAD2 - (c + 2)); |
e->utf8[i][0] = 0; |
e->utf16[i] = 0; |
} |
else if (c < 0x80) { |
if (latin1_encoding.type[c] != BT_OTHER |
&& latin1_encoding.type[c] != BT_NONXML |
&& c != i) |
return 0; |
e->normal.type[i] = latin1_encoding.type[c]; |
e->utf8[i][0] = 1; |
e->utf8[i][1] = (char)c; |
e->utf16[i] = (unsigned short)(c == 0 ? 0xFFFF : c); |
} |
else if (checkCharRefNumber(c) < 0) { |
e->normal.type[i] = BT_NONXML; |
/* This shouldn't really get used. */ |
e->utf16[i] = 0xFFFF; |
e->utf8[i][0] = 1; |
e->utf8[i][1] = 0; |
} |
else { |
if (c > 0xFFFF) |
return 0; |
if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff)) |
e->normal.type[i] = BT_NMSTRT; |
else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff)) |
e->normal.type[i] = BT_NAME; |
else |
e->normal.type[i] = BT_OTHER; |
e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1); |
e->utf16[i] = (unsigned short)c; |
} |
} |
e->userData = userData; |
e->convert = convert; |
if (convert) { |
e->normal.isName2 = unknown_isName; |
e->normal.isName3 = unknown_isName; |
e->normal.isName4 = unknown_isName; |
e->normal.isNmstrt2 = unknown_isNmstrt; |
e->normal.isNmstrt3 = unknown_isNmstrt; |
e->normal.isNmstrt4 = unknown_isNmstrt; |
e->normal.isInvalid2 = unknown_isInvalid; |
e->normal.isInvalid3 = unknown_isInvalid; |
e->normal.isInvalid4 = unknown_isInvalid; |
} |
e->normal.enc.utf8Convert = unknown_toUtf8; |
e->normal.enc.utf16Convert = unknown_toUtf16; |
return &(e->normal.enc); |
} |
|
/* If this enumeration is changed, getEncodingIndex and encodings |
must also be changed. */ |
enum { |
UNKNOWN_ENC = -1, |
ISO_8859_1_ENC = 0, |
US_ASCII_ENC, |
UTF_8_ENC, |
UTF_16_ENC, |
UTF_16BE_ENC, |
UTF_16LE_ENC, |
/* must match encodingNames up to here */ |
NO_ENC |
}; |
|
static const char KW_ISO_8859_1[] = { |
ASCII_I, ASCII_S, ASCII_O, ASCII_MINUS, ASCII_8, ASCII_8, ASCII_5, ASCII_9, |
ASCII_MINUS, ASCII_1, '\0' |
}; |
static const char KW_US_ASCII[] = { |
ASCII_U, ASCII_S, ASCII_MINUS, ASCII_A, ASCII_S, ASCII_C, ASCII_I, ASCII_I, |
'\0' |
}; |
static const char KW_UTF_8[] = { |
ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_8, '\0' |
}; |
static const char KW_UTF_16[] = { |
ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, '\0' |
}; |
static const char KW_UTF_16BE[] = { |
ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_B, ASCII_E, |
'\0' |
}; |
static const char KW_UTF_16LE[] = { |
ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_L, ASCII_E, |
'\0' |
}; |
|
static int FASTCALL |
getEncodingIndex(const char *name) |
{ |
static const char * const encodingNames[] = { |
KW_ISO_8859_1, |
KW_US_ASCII, |
KW_UTF_8, |
KW_UTF_16, |
KW_UTF_16BE, |
KW_UTF_16LE, |
}; |
int i; |
if (name == NULL) |
return NO_ENC; |
for (i = 0; i < (int)(sizeof(encodingNames)/sizeof(encodingNames[0])); i++) |
if (streqci(name, encodingNames[i])) |
return i; |
return UNKNOWN_ENC; |
} |
|
/* For binary compatibility, we store the index of the encoding |
specified at initialization in the isUtf16 member. |
*/ |
|
#define INIT_ENC_INDEX(enc) ((int)(enc)->initEnc.isUtf16) |
#define SET_INIT_ENC_INDEX(enc, i) ((enc)->initEnc.isUtf16 = (char)i) |
|
/* This is what detects the encoding. encodingTable maps from |
encoding indices to encodings; INIT_ENC_INDEX(enc) is the index of |
the external (protocol) specified encoding; state is |
XML_CONTENT_STATE if we're parsing an external text entity, and |
XML_PROLOG_STATE otherwise. |
*/ |
|
|
static int |
initScan(const ENCODING * const *encodingTable, |
const INIT_ENCODING *enc, |
int state, |
const char *ptr, |
const char *end, |
const char **nextTokPtr) |
{ |
const ENCODING **encPtr; |
|
if (ptr == end) |
return XML_TOK_NONE; |
encPtr = enc->encPtr; |
if (ptr + 1 == end) { |
/* only a single byte available for auto-detection */ |
#ifndef XML_DTD /* FIXME */ |
/* a well-formed document entity must have more than one byte */ |
if (state != XML_CONTENT_STATE) |
return XML_TOK_PARTIAL; |
#endif |
/* so we're parsing an external text entity... */ |
/* if UTF-16 was externally specified, then we need at least 2 bytes */ |
switch (INIT_ENC_INDEX(enc)) { |
case UTF_16_ENC: |
case UTF_16LE_ENC: |
case UTF_16BE_ENC: |
return XML_TOK_PARTIAL; |
} |
switch ((unsigned char)*ptr) { |
case 0xFE: |
case 0xFF: |
case 0xEF: /* possibly first byte of UTF-8 BOM */ |
if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
&& state == XML_CONTENT_STATE) |
break; |
/* fall through */ |
case 0x00: |
case 0x3C: |
return XML_TOK_PARTIAL; |
} |
} |
else { |
switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) { |
case 0xFEFF: |
if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
&& state == XML_CONTENT_STATE) |
break; |
*nextTokPtr = ptr + 2; |
*encPtr = encodingTable[UTF_16BE_ENC]; |
return XML_TOK_BOM; |
/* 00 3C is handled in the default case */ |
case 0x3C00: |
if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC |
|| INIT_ENC_INDEX(enc) == UTF_16_ENC) |
&& state == XML_CONTENT_STATE) |
break; |
*encPtr = encodingTable[UTF_16LE_ENC]; |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
case 0xFFFE: |
if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
&& state == XML_CONTENT_STATE) |
break; |
*nextTokPtr = ptr + 2; |
*encPtr = encodingTable[UTF_16LE_ENC]; |
return XML_TOK_BOM; |
case 0xEFBB: |
/* Maybe a UTF-8 BOM (EF BB BF) */ |
/* If there's an explicitly specified (external) encoding |
of ISO-8859-1 or some flavour of UTF-16 |
and this is an external text entity, |
don't look for the BOM, |
because it might be a legal data. |
*/ |
if (state == XML_CONTENT_STATE) { |
int e = INIT_ENC_INDEX(enc); |
if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC |
|| e == UTF_16LE_ENC || e == UTF_16_ENC) |
break; |
} |
if (ptr + 2 == end) |
return XML_TOK_PARTIAL; |
if ((unsigned char)ptr[2] == 0xBF) { |
*nextTokPtr = ptr + 3; |
*encPtr = encodingTable[UTF_8_ENC]; |
return XML_TOK_BOM; |
} |
break; |
default: |
if (ptr[0] == '\0') { |
/* 0 isn't a legal data character. Furthermore a document |
entity can only start with ASCII characters. So the only |
way this can fail to be big-endian UTF-16 if it it's an |
external parsed general entity that's labelled as |
UTF-16LE. |
*/ |
if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC) |
break; |
*encPtr = encodingTable[UTF_16BE_ENC]; |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
} |
else if (ptr[1] == '\0') { |
/* We could recover here in the case: |
- parsing an external entity |
- second byte is 0 |
- no externally specified encoding |
- no encoding declaration |
by assuming UTF-16LE. But we don't, because this would mean when |
presented just with a single byte, we couldn't reliably determine |
whether we needed further bytes. |
*/ |
if (state == XML_CONTENT_STATE) |
break; |
*encPtr = encodingTable[UTF_16LE_ENC]; |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
} |
break; |
} |
} |
*encPtr = encodingTable[INIT_ENC_INDEX(enc)]; |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
} |
|
|
#define NS(x) x |
#define ns(x) x |
#define XML_TOK_NS_C |
#include "xmltok_ns.c" |
#undef XML_TOK_NS_C |
#undef NS |
#undef ns |
|
#ifdef XML_NS |
|
#define NS(x) x ## NS |
#define ns(x) x ## _ns |
|
#define XML_TOK_NS_C |
#include "xmltok_ns.c" |
#undef XML_TOK_NS_C |
|
#undef NS |
#undef ns |
|
ENCODING * |
XmlInitUnknownEncodingNS(void *mem, |
int *table, |
CONVERTER convert, |
void *userData) |
{ |
ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData); |
if (enc) |
((struct normal_encoding *)enc)->type[ASCII_COLON] = BT_COLON; |
return enc; |
} |
|
#endif /* XML_NS */ |