/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd | |
See the file COPYING for copying permission. | |
*/ | |
#ifdef COMPILED_FROM_DSP | |
#include "winconfig.h" | |
#elif defined(MACOS_CLASSIC) | |
#include "macconfig.h" | |
#elif defined(__amigaos4__) | |
#include "amigaconfig.h" | |
#else | |
#ifdef HAVE_EXPAT_CONFIG_H | |
#include <expat_config.h> | |
#endif | |
#endif /* ndef COMPILED_FROM_DSP */ | |
#include <stddef.h> | |
#include "expat_external.h" | |
#include "internal.h" | |
#include "xmltok.h" | |
#include "nametab.h" | |
#ifdef XML_DTD | |
#define IGNORE_SECTION_TOK_VTABLE , PREFIX(ignoreSectionTok) | |
#else | |
#define IGNORE_SECTION_TOK_VTABLE /* as nothing */ | |
#endif | |
#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) | |
#define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16) | |
#define UCS2_GET_NAMING(pages, hi, lo) \ | |
(namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F))) | |
/* 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))) | |
/* 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))) | |
#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)) | |
/* 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 | |
*/ | |
#define UTF8_INVALID2(p) \ | |
((*p) < 0xC2 || ((p)[1] & 0x80) == 0 || ((p)[1] & 0xC0) == 0xC0) | |
#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))) | |
#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))) | |
static int PTRFASTCALL | |
isNever(const ENCODING *enc, const char *p) | |
{ | |
return 0; | |
} | |
static int PTRFASTCALL | |
utf8_isName2(const ENCODING *enc, const char *p) | |
{ | |
return UTF8_GET_NAMING2(namePages, (const unsigned char *)p); | |
} | |
static int PTRFASTCALL | |
utf8_isName3(const ENCODING *enc, const char *p) | |
{ | |
return UTF8_GET_NAMING3(namePages, (const unsigned char *)p); | |
} | |
#define utf8_isName4 isNever | |
static int PTRFASTCALL | |
utf8_isNmstrt2(const ENCODING *enc, const char *p) | |
{ | |
return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p); | |
} | |
static int PTRFASTCALL | |
utf8_isNmstrt3(const ENCODING *enc, const char *p) | |
{ | |
return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p); | |
} | |
#define utf8_isNmstrt4 isNever | |
static int PTRFASTCALL | |
utf8_isInvalid2(const ENCODING *enc, const char *p) | |
{ | |
return UTF8_INVALID2((const unsigned char *)p); | |
} | |
static int PTRFASTCALL | |
utf8_isInvalid3(const ENCODING *enc, const char *p) | |
{ | |
return UTF8_INVALID3((const unsigned char *)p); | |
} | |
static int PTRFASTCALL | |
utf8_isInvalid4(const ENCODING *enc, const char *p) | |
{ | |
return UTF8_INVALID4((const unsigned char *)p); | |
} | |
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 *); | |
}; | |
#define AS_NORMAL_ENCODING(enc) ((const struct normal_encoding *) (enc)) | |
#ifdef XML_MIN_SIZE | |
#define STANDARD_VTABLE(E) \ | |
E ## byteType, \ | |
E ## isNameMin, \ | |
E ## isNmstrtMin, \ | |
E ## byteToAscii, \ | |
E ## charMatches, | |
#else | |
#define STANDARD_VTABLE(E) /* as nothing */ | |
#endif | |
#define NORMAL_VTABLE(E) \ | |
E ## isName2, \ | |
E ## isName3, \ | |
E ## isName4, \ | |
E ## isNmstrt2, \ | |
E ## isNmstrt3, \ | |
E ## isNmstrt4, \ | |
E ## isInvalid2, \ | |
E ## isInvalid3, \ | |
E ## isInvalid4 | |
static int FASTCALL checkCharRefNumber(int); | |
#include "xmltok_impl.h" | |
#include "ascii.h" | |
#ifdef XML_MIN_SIZE | |
#define sb_isNameMin isNever | |
#define sb_isNmstrtMin isNever | |
#endif | |
#ifdef XML_MIN_SIZE | |
#define MINBPC(enc) ((enc)->minBytesPerChar) | |
#else | |
/* minimum bytes per character */ | |
#define MINBPC(enc) 1 | |
#endif | |
#define SB_BYTE_TYPE(enc, p) \ | |
(((struct normal_encoding *)(enc))->type[(unsigned char)*(p)]) | |
#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 | |
#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 | |
#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)) | |
#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 | |
#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 | |
#define PREFIX(ident) normal_ ## ident | |
#include "xmltok_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 | |
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 | |
}; | |
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; | |
} | |
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; | |
} | |
#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 | |
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_) | |
}; | |
#ifdef XML_NS | |
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_) | |
}; | |
#endif | |
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_) | |
}; | |
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)++; | |
} | |
} | |
} | |
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)++; | |
} | |
#ifdef XML_NS | |
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_) | |
}; | |
#endif | |
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_) | |
}; | |
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)++; | |
} | |
#ifdef XML_NS | |
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_) | |
}; | |
#endif | |
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_) | |
}; | |
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; | |
} | |
#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]) | |
#ifdef XML_MIN_SIZE | |
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) | |
#include "xmltok_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) | |
#include "xmltok_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 | |
#include "xmltok_ns.c" | |
#undef NS | |
#undef ns | |
#ifdef XML_NS | |
#define NS(x) x ## NS | |
#define ns(x) x ## _ns | |
#include "xmltok_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 */ |