summaryrefslogtreecommitdiffstats
path: root/parser/expat/lib/xmltok.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--parser/expat/lib/xmltok.c1766
1 files changed, 1766 insertions, 0 deletions
diff --git a/parser/expat/lib/xmltok.c b/parser/expat/lib/xmltok.c
new file mode 100644
index 0000000000..f01c2fa996
--- /dev/null
+++ b/parser/expat/lib/xmltok.c
@@ -0,0 +1,1766 @@
+/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
+ See the file COPYING for copying permission.
+*/
+
+#include <stddef.h>
+
+#ifdef _WIN32
+#include "winconfig.h"
+#else
+#ifdef HAVE_EXPAT_CONFIG_H
+#include <expat_config.h>
+#endif
+#endif /* ndef _WIN32 */
+
+#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)] & (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
+ 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)] \
+ & (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
+ 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)] \
+ & (1u << (((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 *UNUSED_P(enc), const char *UNUSED_P(p))
+{
+ return 0;
+}
+
+static int PTRFASTCALL
+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 *UNUSED_P(enc), const char *p)
+{
+ return UTF8_GET_NAMING3(namePages, (const unsigned char *)p);
+}
+
+#define utf8_isName4 isNever
+
+static int PTRFASTCALL
+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 *UNUSED_P(enc), const char *p)
+{
+ return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p);
+}
+
+#define utf8_isNmstrt4 isNever
+
+static int PTRFASTCALL
+utf8_isInvalid2(const ENCODING *UNUSED_P(enc), const char *p)
+{
+ return UTF8_INVALID2((const unsigned char *)p);
+}
+
+static int PTRFASTCALL
+utf8_isInvalid3(const ENCODING *UNUSED_P(enc), const char *p)
+{
+ return UTF8_INVALID3((const unsigned char *)p);
+}
+
+static int PTRFASTCALL
+utf8_isInvalid4(const ENCODING *UNUSED_P(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
+
+#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"
+#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
+#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
+
+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
+};
+
+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;
+ 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 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) {
+ 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;
+ break;
+ case BT_LEAD4:
+ {
+ unsigned long n;
+ 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;
+ to[0] = (unsigned short)((n >> 10) | 0xD800);
+ to[1] = (unsigned short)((n & 0x3FF) | 0xDC00);
+ to += 2;
+ from += 4;
+ }
+ break;
+ default:
+ *to++ = *from++;
+ break;
+ }
+ }
+ if (from < fromLim)
+ res = XML_CONVERT_OUTPUT_EXHAUSTED;
+after:
+ *fromP = from;
+ *toP = to;
+ return res;
+}
+
+#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 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)
+ return XML_CONVERT_COMPLETED;
+ c = (unsigned char)**fromP;
+ if (c & 0x80) {
+ if (toLim - *toP < 2)
+ return XML_CONVERT_OUTPUT_EXHAUSTED;
+ *(*toP)++ = (char)((c >> 6) | UTF8_cval2);
+ *(*toP)++ = (char)((c & 0x3f) | 0x80);
+ (*fromP)++;
+ }
+ else {
+ if (*toP == toLim)
+ return XML_CONVERT_OUTPUT_EXHAUSTED;
+ *(*toP)++ = *(*fromP)++;
+ }
+ }
+}
+
+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)
+ *(*toP)++ = (unsigned char)*(*fromP)++;
+
+ if ((*toP == toLim) && (*fromP < fromLim))
+ return XML_CONVERT_OUTPUT_EXHAUSTED;
+ else
+ return XML_CONVERT_COMPLETED;
+}
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+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)
+ *(*toP)++ = *(*fromP)++;
+
+ if ((*toP == toLim) && (*fromP < fromLim))
+ return XML_CONVERT_OUTPUT_EXHAUSTED;
+ else
+ return XML_CONVERT_COMPLETED;
+}
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+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 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 = *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); \
+ unsigned char hi = GET_HI(from); \
+ switch (hi) { \
+ case 0: \
+ if (lo < 0x80) { \
+ if (*toP == toLim) { \
+ *fromP = from; \
+ return XML_CONVERT_OUTPUT_EXHAUSTED; \
+ } \
+ *(*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 XML_CONVERT_OUTPUT_EXHAUSTED; \
+ } \
+ *(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \
+ *(*toP)++ = ((lo & 0x3f) | 0x80); \
+ break; \
+ default: \
+ if (toLim - *toP < 3) { \
+ *fromP = from; \
+ return XML_CONVERT_OUTPUT_EXHAUSTED; \
+ } \
+ /* 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 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); \
+ *(*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; \
+ if (from < fromLim) \
+ return XML_CONVERT_INPUT_INCOMPLETE; \
+ else \
+ return XML_CONVERT_COMPLETED; \
+}
+
+#define DEFINE_UTF16_TO_UTF16(E) \
+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) { \
+ fromLim -= 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) \
+ (((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)
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+#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_) NULL_VTABLE
+};
+
+#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 *UNUSED_P(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'
+};
+
+/* BEGIN MOZILLA CHANGE (http://bugzilla.mozilla.org/show_bug.cgi?id=62157) */
+static const char KW_XML_1_0[] = {
+ ASCII_1, ASCII_PERIOD, ASCII_0, '\0'
+};
+/* END MOZILLA CHANGE */
+
+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;
+/* BEGIN MOZILLA CHANGE (http://bugzilla.mozilla.org/show_bug.cgi?id=62157) */
+ /* Anything else but a version="1.0" is invalid for us, until we support later versions. */
+ if (!XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_XML_1_0)) {
+ *badPtr = val;
+ return 0;
+ }
+/* END MOZILLA CHANGE */
+ 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 enum XML_Convert_Result 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)
+ 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)
+ return XML_CONVERT_OUTPUT_EXHAUSTED;
+ utf8 = buf;
+ *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP]
+ - (BT_LEAD2 - 2));
+ }
+ else {
+ if (n > toLim - *toP)
+ return XML_CONVERT_OUTPUT_EXHAUSTED;
+ (*fromP)++;
+ }
+ do {
+ *(*toP)++ = *utf8++;
+ } while (--n != 0);
+ }
+}
+
+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) {
+ 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;
+ }
+
+ if ((*toP == toLim) && (*fromP < fromLim))
+ return XML_CONVERT_OUTPUT_EXHAUSTED;
+ else
+ return XML_CONVERT_COMPLETED;
+}
+
+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 */
+
+/* BEGIN MOZILLA CHANGE (Mozilla extensions for QName checking) */
+#ifdef MOZILLA_CLIENT
+#include "moz_extensions.c"
+#endif /* MOZILLA_CLIENT */
+/* END MOZILLA CHANGE */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 16:41:33 +0000