forked from libexpat/libexpat
/
xmltok_impl.c
executable file
·1746 lines (1689 loc) · 39.6 KB
/
xmltok_impl.c
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/*
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
License for the specific language governing rights and limitations
under the License.
The Original Code is expat.
The Initial Developer of the Original Code is James Clark.
Portions created by James Clark are Copyright (C) 1998, 1999
James Clark. All Rights Reserved.
Contributor(s):
Alternatively, the contents of this file may be used under the terms
of the GNU General Public License (the "GPL"), in which case the
provisions of the GPL are applicable instead of those above. If you
wish to allow use of your version of this file only under the terms of
the GPL and not to allow others to use your version of this file under
the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the
GPL. If you do not delete the provisions above, a recipient may use
your version of this file under either the MPL or the GPL.
*/
#ifndef IS_INVALID_CHAR
#define IS_INVALID_CHAR(enc, ptr, n) (0)
#endif
#define INVALID_LEAD_CASE(n, ptr, nextTokPtr) \
case BT_LEAD ## n: \
if (end - ptr < n) \
return XML_TOK_PARTIAL_CHAR; \
if (IS_INVALID_CHAR(enc, ptr, n)) { \
*(nextTokPtr) = (ptr); \
return XML_TOK_INVALID; \
} \
ptr += n; \
break;
#define INVALID_CASES(ptr, nextTokPtr) \
INVALID_LEAD_CASE(2, ptr, nextTokPtr) \
INVALID_LEAD_CASE(3, ptr, nextTokPtr) \
INVALID_LEAD_CASE(4, ptr, nextTokPtr) \
case BT_NONXML: \
case BT_MALFORM: \
case BT_TRAIL: \
*(nextTokPtr) = (ptr); \
return XML_TOK_INVALID;
#define CHECK_NAME_CASE(n, enc, ptr, end, nextTokPtr) \
case BT_LEAD ## n: \
if (end - ptr < n) \
return XML_TOK_PARTIAL_CHAR; \
if (!IS_NAME_CHAR(enc, ptr, n)) { \
*nextTokPtr = ptr; \
return XML_TOK_INVALID; \
} \
ptr += n; \
break;
#define CHECK_NAME_CASES(enc, ptr, end, nextTokPtr) \
case BT_NONASCII: \
if (!IS_NAME_CHAR_MINBPC(enc, ptr)) { \
*nextTokPtr = ptr; \
return XML_TOK_INVALID; \
} \
case BT_NMSTRT: \
case BT_HEX: \
case BT_DIGIT: \
case BT_NAME: \
case BT_MINUS: \
ptr += MINBPC(enc); \
break; \
CHECK_NAME_CASE(2, enc, ptr, end, nextTokPtr) \
CHECK_NAME_CASE(3, enc, ptr, end, nextTokPtr) \
CHECK_NAME_CASE(4, enc, ptr, end, nextTokPtr)
#define CHECK_NMSTRT_CASE(n, enc, ptr, end, nextTokPtr) \
case BT_LEAD ## n: \
if (end - ptr < n) \
return XML_TOK_PARTIAL_CHAR; \
if (!IS_NMSTRT_CHAR(enc, ptr, n)) { \
*nextTokPtr = ptr; \
return XML_TOK_INVALID; \
} \
ptr += n; \
break;
#define CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr) \
case BT_NONASCII: \
if (!IS_NMSTRT_CHAR_MINBPC(enc, ptr)) { \
*nextTokPtr = ptr; \
return XML_TOK_INVALID; \
} \
case BT_NMSTRT: \
case BT_HEX: \
ptr += MINBPC(enc); \
break; \
CHECK_NMSTRT_CASE(2, enc, ptr, end, nextTokPtr) \
CHECK_NMSTRT_CASE(3, enc, ptr, end, nextTokPtr) \
CHECK_NMSTRT_CASE(4, enc, ptr, end, nextTokPtr)
#ifndef PREFIX
#define PREFIX(ident) ident
#endif
/* ptr points to character following "<!-" */
static
int PREFIX(scanComment)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr != end) {
if (!CHAR_MATCHES(enc, ptr, '-')) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
ptr += MINBPC(enc);
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
INVALID_CASES(ptr, nextTokPtr)
case BT_MINUS:
if ((ptr += MINBPC(enc)) == end)
return XML_TOK_PARTIAL;
if (CHAR_MATCHES(enc, ptr, '-')) {
if ((ptr += MINBPC(enc)) == end)
return XML_TOK_PARTIAL;
if (!CHAR_MATCHES(enc, ptr, '>')) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_COMMENT;
}
break;
default:
ptr += MINBPC(enc);
break;
}
}
}
return XML_TOK_PARTIAL;
}
/* ptr points to character following "<!" */
static
int PREFIX(scanDecl)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
case BT_MINUS:
return PREFIX(scanComment)(enc, ptr + MINBPC(enc), end, nextTokPtr);
case BT_LSQB:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_COND_SECT_OPEN;
case BT_NMSTRT:
case BT_HEX:
ptr += MINBPC(enc);
break;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
case BT_PERCNT:
if (ptr + MINBPC(enc) == end)
return XML_TOK_PARTIAL;
/* don't allow <!ENTITY% foo "whatever"> */
switch (BYTE_TYPE(enc, ptr + MINBPC(enc))) {
case BT_S: case BT_CR: case BT_LF: case BT_PERCNT:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
/* fall through */
case BT_S: case BT_CR: case BT_LF:
*nextTokPtr = ptr;
return XML_TOK_DECL_OPEN;
case BT_NMSTRT:
case BT_HEX:
ptr += MINBPC(enc);
break;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
static
int PREFIX(checkPiTarget)(const ENCODING *enc, const char *ptr, const char *end, int *tokPtr)
{
int upper = 0;
*tokPtr = XML_TOK_PI;
if (end - ptr != MINBPC(enc)*3)
return 1;
switch (BYTE_TO_ASCII(enc, ptr)) {
case 'x':
break;
case 'X':
upper = 1;
break;
default:
return 1;
}
ptr += MINBPC(enc);
switch (BYTE_TO_ASCII(enc, ptr)) {
case 'm':
break;
case 'M':
upper = 1;
break;
default:
return 1;
}
ptr += MINBPC(enc);
switch (BYTE_TO_ASCII(enc, ptr)) {
case 'l':
break;
case 'L':
upper = 1;
break;
default:
return 1;
}
if (upper)
return 0;
*tokPtr = XML_TOK_XML_DECL;
return 1;
}
/* ptr points to character following "<?" */
static
int PREFIX(scanPi)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
int tok;
const char *target = ptr;
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
case BT_S: case BT_CR: case BT_LF:
if (!PREFIX(checkPiTarget)(enc, target, ptr, &tok)) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
ptr += MINBPC(enc);
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
INVALID_CASES(ptr, nextTokPtr)
case BT_QUEST:
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
if (CHAR_MATCHES(enc, ptr, '>')) {
*nextTokPtr = ptr + MINBPC(enc);
return tok;
}
break;
default:
ptr += MINBPC(enc);
break;
}
}
return XML_TOK_PARTIAL;
case BT_QUEST:
if (!PREFIX(checkPiTarget)(enc, target, ptr, &tok)) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
if (CHAR_MATCHES(enc, ptr, '>')) {
*nextTokPtr = ptr + MINBPC(enc);
return tok;
}
/* fall through */
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
static
int PREFIX(scanCdataSection)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
int i;
/* CDATA[ */
if (end - ptr < 6 * MINBPC(enc))
return XML_TOK_PARTIAL;
for (i = 0; i < 6; i++, ptr += MINBPC(enc)) {
if (!CHAR_MATCHES(enc, ptr, "CDATA["[i])) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
*nextTokPtr = ptr;
return XML_TOK_CDATA_SECT_OPEN;
}
static
int PREFIX(cdataSectionTok)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr == end)
return XML_TOK_NONE;
if (MINBPC(enc) > 1) {
size_t n = end - ptr;
if (n & (MINBPC(enc) - 1)) {
n &= ~(MINBPC(enc) - 1);
if (n == 0)
return XML_TOK_PARTIAL;
end = ptr + n;
}
}
switch (BYTE_TYPE(enc, ptr)) {
case BT_RSQB:
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
if (!CHAR_MATCHES(enc, ptr, ']'))
break;
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
if (!CHAR_MATCHES(enc, ptr, '>')) {
ptr -= MINBPC(enc);
break;
}
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_CDATA_SECT_CLOSE;
case BT_CR:
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
if (BYTE_TYPE(enc, ptr) == BT_LF)
ptr += MINBPC(enc);
*nextTokPtr = ptr;
return XML_TOK_DATA_NEWLINE;
case BT_LF:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_DATA_NEWLINE;
INVALID_CASES(ptr, nextTokPtr)
default:
ptr += MINBPC(enc);
break;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
#define LEAD_CASE(n) \
case BT_LEAD ## n: \
if (end - ptr < n || IS_INVALID_CHAR(enc, ptr, n)) { \
*nextTokPtr = ptr; \
return XML_TOK_DATA_CHARS; \
} \
ptr += n; \
break;
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
#undef LEAD_CASE
case BT_NONXML:
case BT_MALFORM:
case BT_TRAIL:
case BT_CR:
case BT_LF:
case BT_RSQB:
*nextTokPtr = ptr;
return XML_TOK_DATA_CHARS;
default:
ptr += MINBPC(enc);
break;
}
}
*nextTokPtr = ptr;
return XML_TOK_DATA_CHARS;
}
/* ptr points to character following "</" */
static
int PREFIX(scanEndTag)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
case BT_S: case BT_CR: case BT_LF:
for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
switch (BYTE_TYPE(enc, ptr)) {
case BT_S: case BT_CR: case BT_LF:
break;
case BT_GT:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_END_TAG;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
#ifdef XML_NS
case BT_COLON:
/* no need to check qname syntax here, since end-tag must match exactly */
ptr += MINBPC(enc);
break;
#endif
case BT_GT:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_END_TAG;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
/* ptr points to character following "&#X" */
static
int PREFIX(scanHexCharRef)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
case BT_DIGIT:
case BT_HEX:
break;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
switch (BYTE_TYPE(enc, ptr)) {
case BT_DIGIT:
case BT_HEX:
break;
case BT_SEMI:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_CHAR_REF;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
}
return XML_TOK_PARTIAL;
}
/* ptr points to character following "&#" */
static
int PREFIX(scanCharRef)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr != end) {
if (CHAR_MATCHES(enc, ptr, 'x'))
return PREFIX(scanHexCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
switch (BYTE_TYPE(enc, ptr)) {
case BT_DIGIT:
break;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
switch (BYTE_TYPE(enc, ptr)) {
case BT_DIGIT:
break;
case BT_SEMI:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_CHAR_REF;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
}
return XML_TOK_PARTIAL;
}
/* ptr points to character following "&" */
static
int PREFIX(scanRef)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
case BT_NUM:
return PREFIX(scanCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
case BT_SEMI:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_ENTITY_REF;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
/* ptr points to character following first character of attribute name */
static
int PREFIX(scanAtts)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
#ifdef XML_NS
int hadColon = 0;
#endif
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
#ifdef XML_NS
case BT_COLON:
if (hadColon) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
hadColon = 1;
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
break;
#endif
case BT_S: case BT_CR: case BT_LF:
for (;;) {
int t;
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
t = BYTE_TYPE(enc, ptr);
if (t == BT_EQUALS)
break;
switch (t) {
case BT_S:
case BT_LF:
case BT_CR:
break;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
/* fall through */
case BT_EQUALS:
{
int open;
#ifdef XML_NS
hadColon = 0;
#endif
for (;;) {
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
open = BYTE_TYPE(enc, ptr);
if (open == BT_QUOT || open == BT_APOS)
break;
switch (open) {
case BT_S:
case BT_LF:
case BT_CR:
break;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
ptr += MINBPC(enc);
/* in attribute value */
for (;;) {
int t;
if (ptr == end)
return XML_TOK_PARTIAL;
t = BYTE_TYPE(enc, ptr);
if (t == open)
break;
switch (t) {
INVALID_CASES(ptr, nextTokPtr)
case BT_AMP:
{
int tok = PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, &ptr);
if (tok <= 0) {
if (tok == XML_TOK_INVALID)
*nextTokPtr = ptr;
return tok;
}
break;
}
case BT_LT:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
default:
ptr += MINBPC(enc);
break;
}
}
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
case BT_S:
case BT_CR:
case BT_LF:
break;
case BT_SOL:
goto sol;
case BT_GT:
goto gt;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
/* ptr points to closing quote */
for (;;) {
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
case BT_S: case BT_CR: case BT_LF:
continue;
case BT_GT:
gt:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_START_TAG_WITH_ATTS;
case BT_SOL:
sol:
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
if (!CHAR_MATCHES(enc, ptr, '>')) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_EMPTY_ELEMENT_WITH_ATTS;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
break;
}
break;
}
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
/* ptr points to character following "<" */
static
int PREFIX(scanLt)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
#ifdef XML_NS
int hadColon;
#endif
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
case BT_EXCL:
if ((ptr += MINBPC(enc)) == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
case BT_MINUS:
return PREFIX(scanComment)(enc, ptr + MINBPC(enc), end, nextTokPtr);
case BT_LSQB:
return PREFIX(scanCdataSection)(enc, ptr + MINBPC(enc), end, nextTokPtr);
}
*nextTokPtr = ptr;
return XML_TOK_INVALID;
case BT_QUEST:
return PREFIX(scanPi)(enc, ptr + MINBPC(enc), end, nextTokPtr);
case BT_SOL:
return PREFIX(scanEndTag)(enc, ptr + MINBPC(enc), end, nextTokPtr);
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
#ifdef XML_NS
hadColon = 0;
#endif
/* we have a start-tag */
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
#ifdef XML_NS
case BT_COLON:
if (hadColon) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
hadColon = 1;
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
break;
#endif
case BT_S: case BT_CR: case BT_LF:
{
ptr += MINBPC(enc);
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
case BT_GT:
goto gt;
case BT_SOL:
goto sol;
case BT_S: case BT_CR: case BT_LF:
ptr += MINBPC(enc);
continue;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
return PREFIX(scanAtts)(enc, ptr, end, nextTokPtr);
}
return XML_TOK_PARTIAL;
}
case BT_GT:
gt:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_START_TAG_NO_ATTS;
case BT_SOL:
sol:
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_PARTIAL;
if (!CHAR_MATCHES(enc, ptr, '>')) {
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_EMPTY_ELEMENT_NO_ATTS;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
static
int PREFIX(contentTok)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr == end)
return XML_TOK_NONE;
if (MINBPC(enc) > 1) {
size_t n = end - ptr;
if (n & (MINBPC(enc) - 1)) {
n &= ~(MINBPC(enc) - 1);
if (n == 0)
return XML_TOK_PARTIAL;
end = ptr + n;
}
}
switch (BYTE_TYPE(enc, ptr)) {
case BT_LT:
return PREFIX(scanLt)(enc, ptr + MINBPC(enc), end, nextTokPtr);
case BT_AMP:
return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
case BT_CR:
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_TRAILING_CR;
if (BYTE_TYPE(enc, ptr) == BT_LF)
ptr += MINBPC(enc);
*nextTokPtr = ptr;
return XML_TOK_DATA_NEWLINE;
case BT_LF:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_DATA_NEWLINE;
case BT_RSQB:
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_TRAILING_RSQB;
if (!CHAR_MATCHES(enc, ptr, ']'))
break;
ptr += MINBPC(enc);
if (ptr == end)
return XML_TOK_TRAILING_RSQB;
if (!CHAR_MATCHES(enc, ptr, '>')) {
ptr -= MINBPC(enc);
break;
}
*nextTokPtr = ptr;
return XML_TOK_INVALID;
INVALID_CASES(ptr, nextTokPtr)
default:
ptr += MINBPC(enc);
break;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
#define LEAD_CASE(n) \
case BT_LEAD ## n: \
if (end - ptr < n || IS_INVALID_CHAR(enc, ptr, n)) { \
*nextTokPtr = ptr; \
return XML_TOK_DATA_CHARS; \
} \
ptr += n; \
break;
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
#undef LEAD_CASE
case BT_RSQB:
if (ptr + MINBPC(enc) != end) {
if (!CHAR_MATCHES(enc, ptr + MINBPC(enc), ']')) {
ptr += MINBPC(enc);
break;
}
if (ptr + 2*MINBPC(enc) != end) {
if (!CHAR_MATCHES(enc, ptr + 2*MINBPC(enc), '>')) {
ptr += MINBPC(enc);
break;
}
*nextTokPtr = ptr + 2*MINBPC(enc);
return XML_TOK_INVALID;
}
}
/* fall through */
case BT_AMP:
case BT_LT:
case BT_NONXML:
case BT_MALFORM:
case BT_TRAIL:
case BT_CR:
case BT_LF:
*nextTokPtr = ptr;
return XML_TOK_DATA_CHARS;
default:
ptr += MINBPC(enc);
break;
}
}
*nextTokPtr = ptr;
return XML_TOK_DATA_CHARS;
}
/* ptr points to character following "%" */
static
int PREFIX(scanPercent)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
case BT_S: case BT_LF: case BT_CR: case BT_PERCNT:
*nextTokPtr = ptr;
return XML_TOK_PERCENT;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
case BT_SEMI:
*nextTokPtr = ptr + MINBPC(enc);
return XML_TOK_PARAM_ENTITY_REF;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
static
int PREFIX(scanPoundName)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
if (ptr == end)
return XML_TOK_PARTIAL;
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
while (ptr != end) {
switch (BYTE_TYPE(enc, ptr)) {
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
case BT_CR: case BT_LF: case BT_S:
case BT_RPAR: case BT_GT: case BT_PERCNT: case BT_VERBAR:
*nextTokPtr = ptr;
return XML_TOK_POUND_NAME;
default:
*nextTokPtr = ptr;
return XML_TOK_INVALID;
}
}
return XML_TOK_PARTIAL;
}
static
int PREFIX(scanLit)(int open, const ENCODING *enc,
const char *ptr, const char *end,
const char **nextTokPtr)
{
while (ptr != end) {
int t = BYTE_TYPE(enc, ptr);
switch (t) {
INVALID_CASES(ptr, nextTokPtr)
case BT_QUOT:
case BT_APOS:
ptr += MINBPC(enc);
if (t != open)
break;
if (ptr == end)
return XML_TOK_PARTIAL;
*nextTokPtr = ptr;
switch (BYTE_TYPE(enc, ptr)) {
case BT_S: case BT_CR: case BT_LF:
case BT_GT: case BT_PERCNT: case BT_LSQB:
return XML_TOK_LITERAL;
default:
return XML_TOK_INVALID;
}
default:
ptr += MINBPC(enc);
break;
}
}
return XML_TOK_PARTIAL;
}
static
int PREFIX(prologTok)(const ENCODING *enc, const char *ptr, const char *end,
const char **nextTokPtr)
{
int tok;
if (ptr == end)
return XML_TOK_NONE;
if (MINBPC(enc) > 1) {
size_t n = end - ptr;
if (n & (MINBPC(enc) - 1)) {