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Update expat sources

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This commit is contained in:
Paul Licameli
2017-06-27 05:34:22 -04:00
parent 138c188fb4
commit 941ad55140
43 changed files with 4134 additions and 882 deletions
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244
lib-src/expat/lib/xmltok.c
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@@ -4,19 +4,13 @@
#include <stddef.h>
#ifdef COMPILED_FROM_DSP
#ifdef _WIN32
#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 */
#endif /* ndef _WIN32 */
#include "expat_external.h"
#include "internal.h"
@@ -46,7 +40,7 @@
#define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16)
#define UCS2_GET_NAMING(pages, hi, lo) \
(namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F)))
(namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1u << ((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
@@ -56,7 +50,7 @@
(namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \
+ ((((byte)[0]) & 3) << 1) \
+ ((((byte)[1]) >> 5) & 1)] \
& (1 << (((byte)[1]) & 0x1F)))
& (1u << (((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
@@ -69,7 +63,7 @@
<< 3) \
+ ((((byte)[1]) & 3) << 1) \
+ ((((byte)[2]) >> 5) & 1)] \
& (1 << (((byte)[2]) & 0x1F)))
& (1u << (((byte)[2]) & 0x1F)))
#define UTF8_GET_NAMING(pages, p, n) \
((n) == 2 \
@@ -122,19 +116,19 @@
((*p) == 0xF4 ? (p)[1] > 0x8F : ((p)[1] & 0xC0) == 0xC0)))
static int PTRFASTCALL
isNever(const ENCODING *enc, const char *p)
isNever(const ENCODING *UNUSED_P(enc), const char *UNUSED_P(p))
{
return 0;
}
static int PTRFASTCALL
utf8_isName2(const ENCODING *enc, const char *p)
utf8_isName2(const ENCODING *UNUSED_P(enc), const char *p)
{
return UTF8_GET_NAMING2(namePages, (const unsigned char *)p);
}
static int PTRFASTCALL
utf8_isName3(const ENCODING *enc, const char *p)
utf8_isName3(const ENCODING *UNUSED_P(enc), const char *p)
{
return UTF8_GET_NAMING3(namePages, (const unsigned char *)p);
}
@@ -142,13 +136,13 @@ utf8_isName3(const ENCODING *enc, const char *p)
#define utf8_isName4 isNever
static int PTRFASTCALL
utf8_isNmstrt2(const ENCODING *enc, const char *p)
utf8_isNmstrt2(const ENCODING *UNUSED_P(enc), const char *p)
{
return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p);
}
static int PTRFASTCALL
utf8_isNmstrt3(const ENCODING *enc, const char *p)
utf8_isNmstrt3(const ENCODING *UNUSED_P(enc), const char *p)
{
return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p);
}
@@ -156,19 +150,19 @@ utf8_isNmstrt3(const ENCODING *enc, const char *p)
#define utf8_isNmstrt4 isNever
static int PTRFASTCALL
utf8_isInvalid2(const ENCODING *enc, const char *p)
utf8_isInvalid2(const ENCODING *UNUSED_P(enc), const char *p)
{
return UTF8_INVALID2((const unsigned char *)p);
}
static int PTRFASTCALL
utf8_isInvalid3(const ENCODING *enc, const char *p)
utf8_isInvalid3(const ENCODING *UNUSED_P(enc), const char *p)
{
return UTF8_INVALID3((const unsigned char *)p);
}
static int PTRFASTCALL
utf8_isInvalid4(const ENCODING *enc, const char *p)
utf8_isInvalid4(const ENCODING *UNUSED_P(enc), const char *p)
{
return UTF8_INVALID4((const unsigned char *)p);
}
@@ -222,6 +216,17 @@ struct normal_encoding {
E ## isInvalid3, \
E ## isInvalid4
#define NULL_VTABLE \
/* isName2 */ NULL, \
/* isName3 */ NULL, \
/* isName4 */ NULL, \
/* isNmstrt2 */ NULL, \
/* isNmstrt3 */ NULL, \
/* isNmstrt4 */ NULL, \
/* isInvalid2 */ NULL, \
/* isInvalid3 */ NULL, \
/* isInvalid4 */ NULL
static int FASTCALL checkCharRefNumber(int);
#include "xmltok_impl.h"
@@ -318,39 +323,89 @@ enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */
UTF8_cval4 = 0xf0
};
static void PTRCALL
utf8_toUtf8(const ENCODING *enc,
void
align_limit_to_full_utf8_characters(const char * from, const char ** fromLimRef)
{
const char * fromLim = *fromLimRef;
size_t walked = 0;
for (; fromLim > from; fromLim--, walked++) {
const unsigned char prev = (unsigned char)fromLim[-1];
if ((prev & 0xf8u) == 0xf0u) { /* 4-byte character, lead by 0b11110xxx byte */
if (walked + 1 >= 4) {
fromLim += 4 - 1;
break;
} else {
walked = 0;
}
} else if ((prev & 0xf0u) == 0xe0u) { /* 3-byte character, lead by 0b1110xxxx byte */
if (walked + 1 >= 3) {
fromLim += 3 - 1;
break;
} else {
walked = 0;
}
} else if ((prev & 0xe0u) == 0xc0u) { /* 2-byte character, lead by 0b110xxxxx byte */
if (walked + 1 >= 2) {
fromLim += 2 - 1;
break;
} else {
walked = 0;
}
} else if ((prev & 0x80u) == 0x00u) { /* 1-byte character, matching 0b0xxxxxxx */
break;
}
}
*fromLimRef = fromLim;
}
static enum XML_Convert_Result PTRCALL
utf8_toUtf8(const ENCODING *UNUSED_P(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++)
const char *fromLimInitial = fromLim;
/* Avoid copying partial characters. */
align_limit_to_full_utf8_characters(*fromP, &fromLim);
for (to = *toP, from = *fromP; (from < fromLim) && (to < toLim); from++, to++)
*to = *from;
*fromP = from;
*toP = to;
if (fromLim < fromLimInitial)
return XML_CONVERT_INPUT_INCOMPLETE;
else if ((to == toLim) && (from < fromLim))
return XML_CONVERT_OUTPUT_EXHAUSTED;
else
return XML_CONVERT_COMPLETED;
}
static void PTRCALL
static enum XML_Convert_Result PTRCALL
utf8_toUtf16(const ENCODING *enc,
const char **fromP, const char *fromLim,
unsigned short **toP, const unsigned short *toLim)
{
enum XML_Convert_Result res = XML_CONVERT_COMPLETED;
unsigned short *to = *toP;
const char *from = *fromP;
while (from != fromLim && to != toLim) {
while (from < fromLim && to < toLim) {
switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) {
case BT_LEAD2:
if (fromLim - from < 2) {
res = XML_CONVERT_INPUT_INCOMPLETE;
goto after;
}
*to++ = (unsigned short)(((from[0] & 0x1f) << 6) | (from[1] & 0x3f));
from += 2;
break;
case BT_LEAD3:
if (fromLim - from < 3) {
res = XML_CONVERT_INPUT_INCOMPLETE;
goto after;
}
*to++ = (unsigned short)(((from[0] & 0xf) << 12)
| ((from[1] & 0x3f) << 6) | (from[2] & 0x3f));
from += 3;
@@ -358,8 +413,14 @@ utf8_toUtf16(const ENCODING *enc,
case BT_LEAD4:
{
unsigned long n;
if (to + 1 == toLim)
if (toLim - to < 2) {
res = XML_CONVERT_OUTPUT_EXHAUSTED;
goto after;
}
if (fromLim - from < 4) {
res = XML_CONVERT_INPUT_INCOMPLETE;
goto after;
}
n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12)
| ((from[2] & 0x3f) << 6) | (from[3] & 0x3f);
n -= 0x10000;
@@ -374,9 +435,12 @@ utf8_toUtf16(const ENCODING *enc,
break;
}
}
if (from < fromLim)
res = XML_CONVERT_OUTPUT_EXHAUSTED;
after:
*fromP = from;
*toP = to;
return res;
}
#ifdef XML_NS
@@ -425,38 +489,43 @@ static const struct normal_encoding internal_utf8_encoding = {
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)
};
static void PTRCALL
latin1_toUtf8(const ENCODING *enc,
static enum XML_Convert_Result PTRCALL
latin1_toUtf8(const ENCODING *UNUSED_P(enc),
const char **fromP, const char *fromLim,
char **toP, const char *toLim)
{
for (;;) {
unsigned char c;
if (*fromP == fromLim)
break;
return XML_CONVERT_COMPLETED;
c = (unsigned char)**fromP;
if (c & 0x80) {
if (toLim - *toP < 2)
break;
return XML_CONVERT_OUTPUT_EXHAUSTED;
*(*toP)++ = (char)((c >> 6) | UTF8_cval2);
*(*toP)++ = (char)((c & 0x3f) | 0x80);
(*fromP)++;
}
else {
if (*toP == toLim)
break;
return XML_CONVERT_OUTPUT_EXHAUSTED;
*(*toP)++ = *(*fromP)++;
}
}
}
static void PTRCALL
latin1_toUtf16(const ENCODING *enc,
static enum XML_Convert_Result PTRCALL
latin1_toUtf16(const ENCODING *UNUSED_P(enc),
const char **fromP, const char *fromLim,
unsigned short **toP, const unsigned short *toLim)
{
while (*fromP != fromLim && *toP != toLim)
while (*fromP < fromLim && *toP < toLim)
*(*toP)++ = (unsigned char)*(*fromP)++;
if ((*toP == toLim) && (*fromP < fromLim))
return XML_CONVERT_OUTPUT_EXHAUSTED;
else
return XML_CONVERT_COMPLETED;
}
#ifdef XML_NS
@@ -467,7 +536,7 @@ static const struct normal_encoding latin1_encoding_ns = {
#include "asciitab.h"
#include "latin1tab.h"
},
STANDARD_VTABLE(sb_)
STANDARD_VTABLE(sb_) NULL_VTABLE
};
#endif
@@ -480,16 +549,21 @@ static const struct normal_encoding latin1_encoding = {
#undef BT_COLON
#include "latin1tab.h"
},
STANDARD_VTABLE(sb_)
STANDARD_VTABLE(sb_) NULL_VTABLE
};
static void PTRCALL
ascii_toUtf8(const ENCODING *enc,
static enum XML_Convert_Result PTRCALL
ascii_toUtf8(const ENCODING *UNUSED_P(enc),
const char **fromP, const char *fromLim,
char **toP, const char *toLim)
{
while (*fromP != fromLim && *toP != toLim)
while (*fromP < fromLim && *toP < toLim)
*(*toP)++ = *(*fromP)++;
if ((*toP == toLim) && (*fromP < fromLim))
return XML_CONVERT_OUTPUT_EXHAUSTED;
else
return XML_CONVERT_COMPLETED;
}
#ifdef XML_NS
@@ -500,7 +574,7 @@ static const struct normal_encoding ascii_encoding_ns = {
#include "asciitab.h"
/* BT_NONXML == 0 */
},
STANDARD_VTABLE(sb_)
STANDARD_VTABLE(sb_) NULL_VTABLE
};
#endif
@@ -513,7 +587,7 @@ static const struct normal_encoding ascii_encoding = {
#undef BT_COLON
/* BT_NONXML == 0 */
},
STANDARD_VTABLE(sb_)
STANDARD_VTABLE(sb_) NULL_VTABLE
};
static int PTRFASTCALL
@@ -536,13 +610,14 @@ unicode_byte_type(char hi, char lo)
}
#define DEFINE_UTF16_TO_UTF8(E) \
static void PTRCALL \
E ## toUtf8(const ENCODING *enc, \
static enum XML_Convert_Result PTRCALL \
E ## toUtf8(const ENCODING *UNUSED_P(enc), \
const char **fromP, const char *fromLim, \
char **toP, const char *toLim) \
{ \
const char *from; \
for (from = *fromP; from != fromLim; from += 2) { \
const char *from = *fromP; \
fromLim = from + (((fromLim - from) >> 1) << 1); /* shrink to even */ \
for (; from < fromLim; from += 2) { \
int plane; \
unsigned char lo2; \
unsigned char lo = GET_LO(from); \
@@ -552,7 +627,7 @@ E ## toUtf8(const ENCODING *enc, \
if (lo < 0x80) { \
if (*toP == toLim) { \
*fromP = from; \
return; \
return XML_CONVERT_OUTPUT_EXHAUSTED; \
} \
*(*toP)++ = lo; \
break; \
@@ -562,7 +637,7 @@ E ## toUtf8(const ENCODING *enc, \
case 0x4: case 0x5: case 0x6: case 0x7: \
if (toLim - *toP < 2) { \
*fromP = from; \
return; \
return XML_CONVERT_OUTPUT_EXHAUSTED; \
} \
*(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \
*(*toP)++ = ((lo & 0x3f) | 0x80); \
@@ -570,7 +645,7 @@ E ## toUtf8(const ENCODING *enc, \
default: \
if (toLim - *toP < 3) { \
*fromP = from; \
return; \
return XML_CONVERT_OUTPUT_EXHAUSTED; \
} \
/* 16 bits divided 4, 6, 6 amongst 3 bytes */ \
*(*toP)++ = ((hi >> 4) | UTF8_cval3); \
@@ -580,7 +655,11 @@ E ## toUtf8(const ENCODING *enc, \
case 0xD8: case 0xD9: case 0xDA: case 0xDB: \
if (toLim - *toP < 4) { \
*fromP = from; \
return; \
return XML_CONVERT_OUTPUT_EXHAUSTED; \
} \
if (fromLim - from < 4) { \
*fromP = from; \
return XML_CONVERT_INPUT_INCOMPLETE; \
} \
plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \
*(*toP)++ = ((plane >> 2) | UTF8_cval4); \
@@ -596,20 +675,32 @@ E ## toUtf8(const ENCODING *enc, \
} \
} \
*fromP = from; \
if (from < fromLim) \
return XML_CONVERT_INPUT_INCOMPLETE; \
else \
return XML_CONVERT_COMPLETED; \
}
#define DEFINE_UTF16_TO_UTF16(E) \
static void PTRCALL \
E ## toUtf16(const ENCODING *enc, \
static enum XML_Convert_Result PTRCALL \
E ## toUtf16(const ENCODING *UNUSED_P(enc), \
const char **fromP, const char *fromLim, \
unsigned short **toP, const unsigned short *toLim) \
{ \
enum XML_Convert_Result res = XML_CONVERT_COMPLETED; \
fromLim = *fromP + (((fromLim - *fromP) >> 1) << 1); /* shrink to even */ \
/* Avoid copying first half only of surrogate */ \
if (fromLim - *fromP > ((toLim - *toP) << 1) \
&& (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \
&& (GET_HI(fromLim - 2) & 0xF8) == 0xD8) { \
fromLim -= 2; \
for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \
res = XML_CONVERT_INPUT_INCOMPLETE; \
} \
for (; *fromP < fromLim && *toP < toLim; *fromP += 2) \
*(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \
if ((*toP == toLim) && (*fromP < fromLim)) \
return XML_CONVERT_OUTPUT_EXHAUSTED; \
else \
return res; \
}
#define SET2(ptr, ch) \
@@ -726,7 +817,7 @@ static const struct normal_encoding little2_encoding_ns = {
#include "asciitab.h"
#include "latin1tab.h"
},
STANDARD_VTABLE(little2_)
STANDARD_VTABLE(little2_) NULL_VTABLE
};
#endif
@@ -745,7 +836,7 @@ static const struct normal_encoding little2_encoding = {
#undef BT_COLON
#include "latin1tab.h"
},
STANDARD_VTABLE(little2_)
STANDARD_VTABLE(little2_) NULL_VTABLE
};
#if BYTEORDER != 4321
@@ -758,7 +849,7 @@ static const struct normal_encoding internal_little2_encoding_ns = {
#include "iasciitab.h"
#include "latin1tab.h"
},
STANDARD_VTABLE(little2_)
STANDARD_VTABLE(little2_) NULL_VTABLE
};
#endif
@@ -771,7 +862,7 @@ static const struct normal_encoding internal_little2_encoding = {
#undef BT_COLON
#include "latin1tab.h"
},
STANDARD_VTABLE(little2_)
STANDARD_VTABLE(little2_) NULL_VTABLE
};
#endif
@@ -867,7 +958,7 @@ static const struct normal_encoding big2_encoding_ns = {
#include "asciitab.h"
#include "latin1tab.h"
},
STANDARD_VTABLE(big2_)
STANDARD_VTABLE(big2_) NULL_VTABLE
};
#endif
@@ -886,7 +977,7 @@ static const struct normal_encoding big2_encoding = {
#undef BT_COLON
#include "latin1tab.h"
},
STANDARD_VTABLE(big2_)
STANDARD_VTABLE(big2_) NULL_VTABLE
};
#if BYTEORDER != 1234
@@ -899,7 +990,7 @@ static const struct normal_encoding internal_big2_encoding_ns = {
#include "iasciitab.h"
#include "latin1tab.h"
},
STANDARD_VTABLE(big2_)
STANDARD_VTABLE(big2_) NULL_VTABLE
};
#endif
@@ -912,7 +1003,7 @@ static const struct normal_encoding internal_big2_encoding = {
#undef BT_COLON
#include "latin1tab.h"
},
STANDARD_VTABLE(big2_)
STANDARD_VTABLE(big2_) NULL_VTABLE
};
#endif
@@ -938,7 +1029,7 @@ streqci(const char *s1, const char *s2)
}
static void PTRCALL
initUpdatePosition(const ENCODING *enc, const char *ptr,
initUpdatePosition(const ENCODING *UNUSED_P(enc), const char *ptr,
const char *end, POSITION *pos)
{
normal_updatePosition(&utf8_encoding.enc, ptr, end, pos);
@@ -1288,7 +1379,7 @@ unknown_isInvalid(const ENCODING *enc, const char *p)
return (c & ~0xFFFF) || checkCharRefNumber(c) < 0;
}
static void PTRCALL
static enum XML_Convert_Result PTRCALL
unknown_toUtf8(const ENCODING *enc,
const char **fromP, const char *fromLim,
char **toP, const char *toLim)
@@ -1299,21 +1390,21 @@ unknown_toUtf8(const ENCODING *enc,
const char *utf8;
int n;
if (*fromP == fromLim)
break;
return XML_CONVERT_COMPLETED;
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;
return XML_CONVERT_OUTPUT_EXHAUSTED;
utf8 = buf;
*fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP]
- (BT_LEAD2 - 2));
}
else {
if (n > toLim - *toP)
break;
return XML_CONVERT_OUTPUT_EXHAUSTED;
(*fromP)++;
}
do {
@@ -1322,13 +1413,13 @@ unknown_toUtf8(const ENCODING *enc,
}
}
static void PTRCALL
static enum XML_Convert_Result 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) {
while (*fromP < fromLim && *toP < toLim) {
unsigned short c = uenc->utf16[(unsigned char)**fromP];
if (c == 0) {
c = (unsigned short)
@@ -1340,6 +1431,11 @@ unknown_toUtf16(const ENCODING *enc,
(*fromP)++;
*(*toP)++ = c;
}
if ((*toP == toLim) && (*fromP < fromLim))
return XML_CONVERT_OUTPUT_EXHAUSTED;
else
return XML_CONVERT_COMPLETED;
}
ENCODING *
@@ -1503,7 +1599,7 @@ initScan(const ENCODING * const *encodingTable,
{
const ENCODING **encPtr;
if (ptr == end)
if (ptr >= end)
return XML_TOK_NONE;
encPtr = enc->encPtr;
if (ptr + 1 == end) {