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/* |
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The contents of this file are subject to the Mozilla Public License |
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Version 1.1 (the "License"); you may not use this file except in |
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compliance with the License. You may obtain a copy of the License at |
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http://www.mozilla.org/MPL/ |
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|
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Software distributed under the License is distributed on an "AS IS" |
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basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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License for the specific language governing rights and limitations |
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under the License. |
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|
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The Original Code is expat. |
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|
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The Initial Developer of the Original Code is James Clark. |
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Portions created by James Clark are Copyright (C) 1998, 1999 |
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James Clark. All Rights Reserved. |
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|
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Contributor(s): |
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|
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Alternatively, the contents of this file may be used under the terms |
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of the GNU General Public License (the "GPL"), in which case the |
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provisions of the GPL are applicable instead of those above. If you |
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wish to allow use of your version of this file only under the terms of |
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the GPL and not to allow others to use your version of this file under |
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the MPL, indicate your decision by deleting the provisions above and |
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replace them with the notice and other provisions required by the |
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GPL. If you do not delete the provisions above, a recipient may use |
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your version of this file under either the MPL or the GPL. |
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*/ |
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|
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#include "xmldef.h" |
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#include "xmltok.h" |
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#include "nametab.h" |
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|
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#define VTABLE1 \ |
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{ PREFIX(prologTok), PREFIX(contentTok), PREFIX(cdataSectionTok) }, \ |
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{ PREFIX(attributeValueTok), PREFIX(entityValueTok) }, \ |
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PREFIX(sameName), \ |
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PREFIX(nameMatchesAscii), \ |
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PREFIX(nameLength), \ |
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PREFIX(skipS), \ |
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PREFIX(getAtts), \ |
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PREFIX(charRefNumber), \ |
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PREFIX(predefinedEntityName), \ |
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PREFIX(updatePosition), \ |
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PREFIX(isPublicId) |
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|
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#define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16) |
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|
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#define UCS2_GET_NAMING(pages, hi, lo) \ |
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(namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F))) |
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|
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/* A 2 byte UTF-8 representation splits the characters 11 bits |
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between the bottom 5 and 6 bits of the bytes. |
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We need 8 bits to index into pages, 3 bits to add to that index and |
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5 bits to generate the mask. */ |
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#define UTF8_GET_NAMING2(pages, byte) \ |
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(namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \ |
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+ ((((byte)[0]) & 3) << 1) \ |
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+ ((((byte)[1]) >> 5) & 1)] \ |
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& (1 << (((byte)[1]) & 0x1F))) |
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|
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/* A 3 byte UTF-8 representation splits the characters 16 bits |
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between the bottom 4, 6 and 6 bits of the bytes. |
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We need 8 bits to index into pages, 3 bits to add to that index and |
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5 bits to generate the mask. */ |
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#define UTF8_GET_NAMING3(pages, byte) \ |
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(namingBitmap[((pages)[((((byte)[0]) & 0xF) << 4) \ |
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+ ((((byte)[1]) >> 2) & 0xF)] \ |
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<< 3) \ |
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+ ((((byte)[1]) & 3) << 1) \ |
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+ ((((byte)[2]) >> 5) & 1)] \ |
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& (1 << (((byte)[2]) & 0x1F))) |
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|
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#define UTF8_GET_NAMING(pages, p, n) \ |
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((n) == 2 \ |
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? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \ |
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: ((n) == 3 \ |
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? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) \ |
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: 0)) |
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|
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#define UTF8_INVALID3(p) \ |
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((*p) == 0xED \ |
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? (((p)[1] & 0x20) != 0) \ |
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: ((*p) == 0xEF \ |
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? ((p)[1] == 0xBF && ((p)[2] == 0xBF || (p)[2] == 0xBE)) \ |
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: 0)) |
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|
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#define UTF8_INVALID4(p) ((*p) == 0xF4 && ((p)[1] & 0x30) != 0) |
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|
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static |
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int isNever(const ENCODING *enc, const char *p) |
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{ |
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return 0; |
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} |
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|
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static |
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int utf8_isName2(const ENCODING *enc, const char *p) |
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{ |
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return UTF8_GET_NAMING2(namePages, (const unsigned char *)p); |
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} |
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|
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static |
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int utf8_isName3(const ENCODING *enc, const char *p) |
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{ |
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return UTF8_GET_NAMING3(namePages, (const unsigned char *)p); |
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} |
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|
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#define utf8_isName4 isNever |
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|
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static |
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int utf8_isNmstrt2(const ENCODING *enc, const char *p) |
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{ |
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return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p); |
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} |
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|
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static |
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int utf8_isNmstrt3(const ENCODING *enc, const char *p) |
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{ |
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return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p); |
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} |
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|
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#define utf8_isNmstrt4 isNever |
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|
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#define utf8_isInvalid2 isNever |
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|
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static |
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int utf8_isInvalid3(const ENCODING *enc, const char *p) |
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{ |
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return UTF8_INVALID3((const unsigned char *)p); |
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} |
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|
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static |
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int utf8_isInvalid4(const ENCODING *enc, const char *p) |
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{ |
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return UTF8_INVALID4((const unsigned char *)p); |
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} |
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|
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struct normal_encoding { |
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ENCODING enc; |
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unsigned char type[256]; |
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#ifdef XML_MIN_SIZE |
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int (*byteType)(const ENCODING *, const char *); |
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int (*isNameMin)(const ENCODING *, const char *); |
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int (*isNmstrtMin)(const ENCODING *, const char *); |
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int (*byteToAscii)(const ENCODING *, const char *); |
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int (*charMatches)(const ENCODING *, const char *, int); |
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#endif /* XML_MIN_SIZE */ |
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int (*isName2)(const ENCODING *, const char *); |
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int (*isName3)(const ENCODING *, const char *); |
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int (*isName4)(const ENCODING *, const char *); |
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int (*isNmstrt2)(const ENCODING *, const char *); |
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int (*isNmstrt3)(const ENCODING *, const char *); |
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int (*isNmstrt4)(const ENCODING *, const char *); |
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int (*isInvalid2)(const ENCODING *, const char *); |
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int (*isInvalid3)(const ENCODING *, const char *); |
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int (*isInvalid4)(const ENCODING *, const char *); |
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}; |
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|
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#ifdef XML_MIN_SIZE |
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|
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#define STANDARD_VTABLE(E) \ |
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E ## byteType, \ |
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E ## isNameMin, \ |
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E ## isNmstrtMin, \ |
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E ## byteToAscii, \ |
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E ## charMatches, |
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|
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#else |
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|
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#define STANDARD_VTABLE(E) /* as nothing */ |
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|
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#endif |
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#define NORMAL_VTABLE(E) \ |
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E ## isName2, \ |
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E ## isName3, \ |
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E ## isName4, \ |
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E ## isNmstrt2, \ |
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E ## isNmstrt3, \ |
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E ## isNmstrt4, \ |
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E ## isInvalid2, \ |
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E ## isInvalid3, \ |
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E ## isInvalid4 |
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|
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static int checkCharRefNumber(int); |
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#include "xmltok_impl.h" |
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#ifdef XML_MIN_SIZE |
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#define sb_isNameMin isNever |
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#define sb_isNmstrtMin isNever |
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#endif |
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|
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#ifdef XML_MIN_SIZE |
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#define MINBPC(enc) ((enc)->minBytesPerChar) |
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#else |
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/* minimum bytes per character */ |
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#define MINBPC(enc) 1 |
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#endif |
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|
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#define SB_BYTE_TYPE(enc, p) \ |
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(((struct normal_encoding *)(enc))->type[(unsigned char)*(p)]) |
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|
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#ifdef XML_MIN_SIZE |
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static |
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int sb_byteType(const ENCODING *enc, const char *p) |
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{ |
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return SB_BYTE_TYPE(enc, p); |
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} |
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#define BYTE_TYPE(enc, p) \ |
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(((const struct normal_encoding *)(enc))->byteType(enc, p)) |
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#else |
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#define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p) |
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#endif |
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|
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#ifdef XML_MIN_SIZE |
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#define BYTE_TO_ASCII(enc, p) \ |
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(((const struct normal_encoding *)(enc))->byteToAscii(enc, p)) |
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static |
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int sb_byteToAscii(const ENCODING *enc, const char *p) |
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{ |
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return *p; |
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} |
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#else |
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#define BYTE_TO_ASCII(enc, p) (*p) |
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#endif |
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|
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#define IS_NAME_CHAR(enc, p, n) \ |
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(((const struct normal_encoding *)(enc))->isName ## n(enc, p)) |
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#define IS_NMSTRT_CHAR(enc, p, n) \ |
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(((const struct normal_encoding *)(enc))->isNmstrt ## n(enc, p)) |
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#define IS_INVALID_CHAR(enc, p, n) \ |
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(((const struct normal_encoding *)(enc))->isInvalid ## n(enc, p)) |
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|
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#ifdef XML_MIN_SIZE |
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#define IS_NAME_CHAR_MINBPC(enc, p) \ |
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(((const struct normal_encoding *)(enc))->isNameMin(enc, p)) |
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#define IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
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(((const struct normal_encoding *)(enc))->isNmstrtMin(enc, p)) |
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#else |
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#define IS_NAME_CHAR_MINBPC(enc, p) (0) |
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#define IS_NMSTRT_CHAR_MINBPC(enc, p) (0) |
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#endif |
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|
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#ifdef XML_MIN_SIZE |
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#define CHAR_MATCHES(enc, p, c) \ |
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(((const struct normal_encoding *)(enc))->charMatches(enc, p, c)) |
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static |
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int sb_charMatches(const ENCODING *enc, const char *p, int c) |
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{ |
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return *p == c; |
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} |
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#else |
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/* c is an ASCII character */ |
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#define CHAR_MATCHES(enc, p, c) (*(p) == c) |
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#endif |
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|
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#define PREFIX(ident) normal_ ## ident |
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#include "xmltok_impl_c.h" |
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|
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#undef MINBPC |
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#undef BYTE_TYPE |
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#undef BYTE_TO_ASCII |
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#undef CHAR_MATCHES |
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#undef IS_NAME_CHAR |
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#undef IS_NAME_CHAR_MINBPC |
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#undef IS_NMSTRT_CHAR |
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#undef IS_NMSTRT_CHAR_MINBPC |
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#undef IS_INVALID_CHAR |
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|
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enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */ |
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UTF8_cval1 = 0x00, |
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UTF8_cval2 = 0xc0, |
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UTF8_cval3 = 0xe0, |
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UTF8_cval4 = 0xf0 |
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}; |
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|
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static |
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void utf8_toUtf8(const ENCODING *enc, |
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const char **fromP, const char *fromLim, |
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char **toP, const char *toLim) |
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{ |
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char *to; |
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const char *from; |
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if (fromLim - *fromP > toLim - *toP) { |
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/* Avoid copying partial characters. */ |
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for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--) |
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if (((unsigned char)fromLim[-1] & 0xc0) != 0x80) |
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break; |
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} |
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for (to = *toP, from = *fromP; from != fromLim; from++, to++) |
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*to = *from; |
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*fromP = from; |
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*toP = to; |
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} |
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|
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static |
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void utf8_toUtf16(const ENCODING *enc, |
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const char **fromP, const char *fromLim, |
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unsigned short **toP, const unsigned short *toLim) |
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{ |
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unsigned short *to = *toP; |
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const char *from = *fromP; |
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while (from != fromLim && to != toLim) { |
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switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) { |
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case BT_LEAD2: |
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*to++ = ((from[0] & 0x1f) << 6) | (from[1] & 0x3f); |
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from += 2; |
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break; |
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case BT_LEAD3: |
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*to++ = ((from[0] & 0xf) << 12) | ((from[1] & 0x3f) << 6) | (from[2] & 0x3f); |
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from += 3; |
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break; |
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case BT_LEAD4: |
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{ |
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unsigned long n; |
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if (to + 1 == toLim) |
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break; |
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n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12) | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f); |
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n -= 0x10000; |
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to[0] = (unsigned short)((n >> 10) | 0xD800); |
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to[1] = (unsigned short)((n & 0x3FF) | 0xDC00); |
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to += 2; |
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from += 4; |
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} |
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break; |
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default: |
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329 |
*to++ = *from++; |
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330 |
break; |
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} |
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332 |
} |
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*fromP = from; |
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*toP = to; |
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} |
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336 |
|
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337 |
#ifdef XML_NS |
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338 |
static const struct normal_encoding utf8_encoding_ns = { |
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{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
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{ |
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341 |
#include "asciitab.h" |
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342 |
#include "utf8tab.h" |
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343 |
}, |
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STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
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}; |
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346 |
#endif |
|
347 |
|
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348 |
static const struct normal_encoding utf8_encoding = { |
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349 |
{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
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350 |
{ |
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351 |
#define BT_COLON BT_NMSTRT |
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352 |
#include "asciitab.h" |
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353 |
#undef BT_COLON |
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354 |
#include "utf8tab.h" |
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355 |
}, |
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356 |
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
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357 |
}; |
|
358 |
|
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359 |
#ifdef XML_NS |
|
360 |
|
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361 |
static const struct normal_encoding internal_utf8_encoding_ns = { |
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362 |
{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
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363 |
{ |
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364 |
#include "iasciitab.h" |
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365 |
#include "utf8tab.h" |
|
366 |
}, |
|
367 |
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
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368 |
}; |
|
369 |
|
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370 |
#endif |
|
371 |
|
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372 |
static const struct normal_encoding internal_utf8_encoding = { |
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373 |
{ VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
|
374 |
{ |
|
375 |
#define BT_COLON BT_NMSTRT |
|
376 |
#include "iasciitab.h" |
|
377 |
#undef BT_COLON |
|
378 |
#include "utf8tab.h" |
|
379 |
}, |
|
380 |
STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
|
381 |
}; |
|
382 |
|
|
383 |
static |
|
384 |
void latin1_toUtf8(const ENCODING *enc, |
|
385 |
const char **fromP, const char *fromLim, |
|
386 |
char **toP, const char *toLim) |
|
387 |
{ |
|
388 |
for (;;) { |
|
389 |
unsigned char c; |
|
390 |
if (*fromP == fromLim) |
|
391 |
break; |
|
392 |
c = (unsigned char)**fromP; |
|
393 |
if (c & 0x80) { |
|
394 |
if (toLim - *toP < 2) |
|
395 |
break; |
|
396 |
*(*toP)++ = ((c >> 6) | UTF8_cval2); |
|
397 |
*(*toP)++ = ((c & 0x3f) | 0x80); |
|
398 |
(*fromP)++; |
|
399 |
} |
|
400 |
else { |
|
401 |
if (*toP == toLim) |
|
402 |
break; |
|
403 |
*(*toP)++ = *(*fromP)++; |
|
404 |
} |
|
405 |
} |
|
406 |
} |
|
407 |
|
|
408 |
static |
|
409 |
void latin1_toUtf16(const ENCODING *enc, |
|
410 |
const char **fromP, const char *fromLim, |
|
411 |
unsigned short **toP, const unsigned short *toLim) |
|
412 |
{ |
|
413 |
while (*fromP != fromLim && *toP != toLim) |
|
414 |
*(*toP)++ = (unsigned char)*(*fromP)++; |
|
415 |
} |
|
416 |
|
|
417 |
#ifdef XML_NS |
|
418 |
|
|
419 |
static const struct normal_encoding latin1_encoding_ns = { |
|
420 |
{ VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
|
421 |
{ |
|
422 |
#include "asciitab.h" |
|
423 |
#include "latin1tab.h" |
|
424 |
}, |
|
425 |
STANDARD_VTABLE(sb_) |
|
426 |
}; |
|
427 |
|
|
428 |
#endif |
|
429 |
|
|
430 |
static const struct normal_encoding latin1_encoding = { |
|
431 |
{ VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
|
432 |
{ |
|
433 |
#define BT_COLON BT_NMSTRT |
|
434 |
#include "asciitab.h" |
|
435 |
#undef BT_COLON |
|
436 |
#include "latin1tab.h" |
|
437 |
}, |
|
438 |
STANDARD_VTABLE(sb_) |
|
439 |
}; |
|
440 |
|
|
441 |
static |
|
442 |
void ascii_toUtf8(const ENCODING *enc, |
|
443 |
const char **fromP, const char *fromLim, |
|
444 |
char **toP, const char *toLim) |
|
445 |
{ |
|
446 |
while (*fromP != fromLim && *toP != toLim) |
|
447 |
*(*toP)++ = *(*fromP)++; |
|
448 |
} |
|
449 |
|
|
450 |
#ifdef XML_NS |
|
451 |
|
|
452 |
static const struct normal_encoding ascii_encoding_ns = { |
|
453 |
{ VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
|
454 |
{ |
|
455 |
#include "asciitab.h" |
|
456 |
/* BT_NONXML == 0 */ |
|
457 |
}, |
|
458 |
STANDARD_VTABLE(sb_) |
|
459 |
}; |
|
460 |
|
|
461 |
#endif |
|
462 |
|
|
463 |
static const struct normal_encoding ascii_encoding = { |
|
464 |
{ VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
|
465 |
{ |
|
466 |
#define BT_COLON BT_NMSTRT |
|
467 |
#include "asciitab.h" |
|
468 |
#undef BT_COLON |
|
469 |
/* BT_NONXML == 0 */ |
|
470 |
}, |
|
471 |
STANDARD_VTABLE(sb_) |
|
472 |
}; |
|
473 |
|
|
474 |
static int unicode_byte_type(char hi, char lo) |
|
475 |
{ |
|
476 |
switch ((unsigned char)hi) { |
|
477 |
case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
|
478 |
return BT_LEAD4; |
|
479 |
case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
|
480 |
return BT_TRAIL; |
|
481 |
case 0xFF: |
|
482 |
switch ((unsigned char)lo) { |
|
483 |
case 0xFF: |
|
484 |
case 0xFE: |
|
485 |
return BT_NONXML; |
|
486 |
} |
|
487 |
break; |
|
488 |
} |
|
489 |
return BT_NONASCII; |
|
490 |
} |
|
491 |
|
|
492 |
#define DEFINE_UTF16_TO_UTF8(E) \ |
|
493 |
static \ |
|
494 |
void E ## toUtf8(const ENCODING *enc, \ |
|
495 |
const char **fromP, const char *fromLim, \ |
|
496 |
char **toP, const char *toLim) \ |
|
497 |
{ \ |
|
498 |
const char *from; \ |
|
499 |
for (from = *fromP; from != fromLim; from += 2) { \ |
|
500 |
int plane; \ |
|
501 |
unsigned char lo2; \ |
|
502 |
unsigned char lo = GET_LO(from); \ |
|
503 |
unsigned char hi = GET_HI(from); \ |
|
504 |
switch (hi) { \ |
|
505 |
case 0: \ |
|
506 |
if (lo < 0x80) { \ |
|
507 |
if (*toP == toLim) { \ |
|
508 |
*fromP = from; \ |
|
509 |
return; \ |
|
510 |
} \ |
|
511 |
*(*toP)++ = lo; \ |
|
512 |
break; \ |
|
513 |
} \ |
|
514 |
/* fall through */ \ |
|
515 |
case 0x1: case 0x2: case 0x3: \ |
|
516 |
case 0x4: case 0x5: case 0x6: case 0x7: \ |
|
517 |
if (toLim - *toP < 2) { \ |
|
518 |
*fromP = from; \ |
|
519 |
return; \ |
|
520 |
} \ |
|
521 |
*(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \ |
|
522 |
*(*toP)++ = ((lo & 0x3f) | 0x80); \ |
|
523 |
break; \ |
|
524 |
default: \ |
|
525 |
if (toLim - *toP < 3) { \ |
|
526 |
*fromP = from; \ |
|
527 |
return; \ |
|
528 |
} \ |
|
529 |
/* 16 bits divided 4, 6, 6 amongst 3 bytes */ \ |
|
530 |
*(*toP)++ = ((hi >> 4) | UTF8_cval3); \ |
|
531 |
*(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \ |
|
532 |
*(*toP)++ = ((lo & 0x3f) | 0x80); \ |
|
533 |
break; \ |
|
534 |
case 0xD8: case 0xD9: case 0xDA: case 0xDB: \ |
|
535 |
if (toLim - *toP < 4) { \ |
|
536 |
*fromP = from; \ |
|
537 |
return; \ |
|
538 |
} \ |
|
539 |
plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \ |
|
540 |
*(*toP)++ = ((plane >> 2) | UTF8_cval4); \ |
|
541 |
*(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \ |
|
542 |
from += 2; \ |
|
543 |
lo2 = GET_LO(from); \ |
|
544 |
*(*toP)++ = (((lo & 0x3) << 4) \ |
|
545 |
| ((GET_HI(from) & 0x3) << 2) \ |
|
546 |
| (lo2 >> 6) \ |
|
547 |
| 0x80); \ |
|
548 |
*(*toP)++ = ((lo2 & 0x3f) | 0x80); \ |
|
549 |
break; \ |
|
550 |
} \ |
|
551 |
} \ |
|
552 |
*fromP = from; \ |
|
553 |
} |
|
554 |
|
|
555 |
#define DEFINE_UTF16_TO_UTF16(E) \ |
|
556 |
static \ |
|
557 |
void E ## toUtf16(const ENCODING *enc, \ |
|
558 |
const char **fromP, const char *fromLim, \ |
|
559 |
unsigned short **toP, const unsigned short *toLim) \ |
|
560 |
{ \ |
|
561 |
/* Avoid copying first half only of surrogate */ \ |
|
562 |
if (fromLim - *fromP > ((toLim - *toP) << 1) \ |
|
563 |
&& (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \ |
|
564 |
fromLim -= 2; \ |
|
565 |
for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \ |
|
566 |
*(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \ |
|
567 |
} |
|
568 |
|
|
569 |
#define SET2(ptr, ch) \ |
|
570 |
(((ptr)[0] = ((ch) & 0xff)), ((ptr)[1] = ((ch) >> 8))) |
|
571 |
#define GET_LO(ptr) ((unsigned char)(ptr)[0]) |
|
572 |
#define GET_HI(ptr) ((unsigned char)(ptr)[1]) |
|
573 |
|
|
574 |
DEFINE_UTF16_TO_UTF8(little2_) |
|
575 |
DEFINE_UTF16_TO_UTF16(little2_) |
|
576 |
|
|
577 |
#undef SET2 |
|
578 |
#undef GET_LO |
|
579 |
#undef GET_HI |
|
580 |
|
|
581 |
#define SET2(ptr, ch) \ |
|
582 |
(((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch) & 0xFF))) |
|
583 |
#define GET_LO(ptr) ((unsigned char)(ptr)[1]) |
|
584 |
#define GET_HI(ptr) ((unsigned char)(ptr)[0]) |
|
585 |
|
|
586 |
DEFINE_UTF16_TO_UTF8(big2_) |
|
587 |
DEFINE_UTF16_TO_UTF16(big2_) |
|
588 |
|
|
589 |
#undef SET2 |
|
590 |
#undef GET_LO |
|
591 |
#undef GET_HI |
|
592 |
|
|
593 |
#define LITTLE2_BYTE_TYPE(enc, p) \ |
|
594 |
((p)[1] == 0 \ |
|
595 |
? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \ |
|
596 |
: unicode_byte_type((p)[1], (p)[0])) |
|
597 |
#define LITTLE2_BYTE_TO_ASCII(enc, p) ((p)[1] == 0 ? (p)[0] : -1) |
|
598 |
#define LITTLE2_CHAR_MATCHES(enc, p, c) ((p)[1] == 0 && (p)[0] == c) |
|
599 |
#define LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) \ |
|
600 |
UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0]) |
|
601 |
#define LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
|
602 |
UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0]) |
|
603 |
|
|
604 |
#ifdef XML_MIN_SIZE |
|
605 |
|
|
606 |
static |
|
607 |
int little2_byteType(const ENCODING *enc, const char *p) |
|
608 |
{ |
|
609 |
return LITTLE2_BYTE_TYPE(enc, p); |
|
610 |
} |
|
611 |
|
|
612 |
static |
|
613 |
int little2_byteToAscii(const ENCODING *enc, const char *p) |
|
614 |
{ |
|
615 |
return LITTLE2_BYTE_TO_ASCII(enc, p); |
|
616 |
} |
|
617 |
|
|
618 |
static |
|
619 |
int little2_charMatches(const ENCODING *enc, const char *p, int c) |
|
620 |
{ |
|
621 |
return LITTLE2_CHAR_MATCHES(enc, p, c); |
|
622 |
} |
|
623 |
|
|
624 |
static |
|
625 |
int little2_isNameMin(const ENCODING *enc, const char *p) |
|
626 |
{ |
|
627 |
return LITTLE2_IS_NAME_CHAR_MINBPC(enc, p); |
|
628 |
} |
|
629 |
|
|
630 |
static |
|
631 |
int little2_isNmstrtMin(const ENCODING *enc, const char *p) |
|
632 |
{ |
|
633 |
return LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
|
634 |
} |
|
635 |
|
|
636 |
#undef VTABLE |
|
637 |
#define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16 |
|
638 |
|
|
639 |
#else /* not XML_MIN_SIZE */ |
|
640 |
|
|
641 |
#undef PREFIX |
|
642 |
#define PREFIX(ident) little2_ ## ident |
|
643 |
#define MINBPC(enc) 2 |
|
644 |
/* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
|
645 |
#define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p) |
|
646 |
#define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(enc, p) |
|
647 |
#define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(enc, p, c) |
|
648 |
#define IS_NAME_CHAR(enc, p, n) 0 |
|
649 |
#define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) |
|
650 |
#define IS_NMSTRT_CHAR(enc, p, n) (0) |
|
651 |
#define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
|
652 |
|
|
653 |
#include "xmltok_impl_c.h" |
|
654 |
|
|
655 |
#undef MINBPC |
|
656 |
#undef BYTE_TYPE |
|
657 |
#undef BYTE_TO_ASCII |
|
658 |
#undef CHAR_MATCHES |
|
659 |
#undef IS_NAME_CHAR |
|
660 |
#undef IS_NAME_CHAR_MINBPC |
|
661 |
#undef IS_NMSTRT_CHAR |
|
662 |
#undef IS_NMSTRT_CHAR_MINBPC |
|
663 |
#undef IS_INVALID_CHAR |
|
664 |
|
|
665 |
#endif /* not XML_MIN_SIZE */ |
|
666 |
|
|
667 |
#ifdef XML_NS |
|
668 |
|
|
669 |
static const struct normal_encoding little2_encoding_ns = { |
|
670 |
{ VTABLE, 2, 0, |
|
671 |
#if XML_BYTE_ORDER == 12 |
|
672 |
1 |
|
673 |
#else |
|
674 |
0 |
|
675 |
#endif |
|
676 |
}, |
|
677 |
{ |
|
678 |
#include "asciitab.h" |
|
679 |
#include "latin1tab.h" |
|
680 |
}, |
|
681 |
STANDARD_VTABLE(little2_) |
|
682 |
}; |
|
683 |
|
|
684 |
#endif |
|
685 |
|
|
686 |
static const struct normal_encoding little2_encoding = { |
|
687 |
{ VTABLE, 2, 0, |
|
688 |
#if XML_BYTE_ORDER == 12 |
|
689 |
1 |
|
690 |
#else |
|
691 |
0 |
|
692 |
#endif |
|
693 |
}, |
|
694 |
{ |
|
695 |
#define BT_COLON BT_NMSTRT |
|
696 |
#include "asciitab.h" |
|
697 |
#undef BT_COLON |
|
698 |
#include "latin1tab.h" |
|
699 |
}, |
|
700 |
STANDARD_VTABLE(little2_) |
|
701 |
}; |
|
702 |
|
|
703 |
#if XML_BYTE_ORDER != 21 |
|
704 |
|
|
705 |
#ifdef XML_NS |
|
706 |
|
|
707 |
static const struct normal_encoding internal_little2_encoding_ns = { |
|
708 |
{ VTABLE, 2, 0, 1 }, |
|
709 |
{ |
|
710 |
#include "iasciitab.h" |
|
711 |
#include "latin1tab.h" |
|
712 |
}, |
|
713 |
STANDARD_VTABLE(little2_) |
|
714 |
}; |
|
715 |
|
|
716 |
#endif |
|
717 |
|
|
718 |
static const struct normal_encoding internal_little2_encoding = { |
|
719 |
{ VTABLE, 2, 0, 1 }, |
|
720 |
{ |
|
721 |
#define BT_COLON BT_NMSTRT |
|
722 |
#include "iasciitab.h" |
|
723 |
#undef BT_COLON |
|
724 |
#include "latin1tab.h" |
|
725 |
}, |
|
726 |
STANDARD_VTABLE(little2_) |
|
727 |
}; |
|
728 |
|
|
729 |
#endif |
|
730 |
|
|
731 |
|
|
732 |
#define BIG2_BYTE_TYPE(enc, p) \ |
|
733 |
((p)[0] == 0 \ |
|
734 |
? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \ |
|
735 |
: unicode_byte_type((p)[0], (p)[1])) |
|
736 |
#define BIG2_BYTE_TO_ASCII(enc, p) ((p)[0] == 0 ? (p)[1] : -1) |
|
737 |
#define BIG2_CHAR_MATCHES(enc, p, c) ((p)[0] == 0 && (p)[1] == c) |
|
738 |
#define BIG2_IS_NAME_CHAR_MINBPC(enc, p) \ |
|
739 |
UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1]) |
|
740 |
#define BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
|
741 |
UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1]) |
|
742 |
|
|
743 |
#ifdef XML_MIN_SIZE |
|
744 |
|
|
745 |
static |
|
746 |
int big2_byteType(const ENCODING *enc, const char *p) |
|
747 |
{ |
|
748 |
return BIG2_BYTE_TYPE(enc, p); |
|
749 |
} |
|
750 |
|
|
751 |
static |
|
752 |
int big2_byteToAscii(const ENCODING *enc, const char *p) |
|
753 |
{ |
|
754 |
return BIG2_BYTE_TO_ASCII(enc, p); |
|
755 |
} |
|
756 |
|
|
757 |
static |
|
758 |
int big2_charMatches(const ENCODING *enc, const char *p, int c) |
|
759 |
{ |
|
760 |
return BIG2_CHAR_MATCHES(enc, p, c); |
|
761 |
} |
|
762 |
|
|
763 |
static |
|
764 |
int big2_isNameMin(const ENCODING *enc, const char *p) |
|
765 |
{ |
|
766 |
return BIG2_IS_NAME_CHAR_MINBPC(enc, p); |
|
767 |
} |
|
768 |
|
|
769 |
static |
|
770 |
int big2_isNmstrtMin(const ENCODING *enc, const char *p) |
|
771 |
{ |
|
772 |
return BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
|
773 |
} |
|
774 |
|
|
775 |
#undef VTABLE |
|
776 |
#define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16 |
|
777 |
|
|
778 |
#else /* not XML_MIN_SIZE */ |
|
779 |
|
|
780 |
#undef PREFIX |
|
781 |
#define PREFIX(ident) big2_ ## ident |
|
782 |
#define MINBPC(enc) 2 |
|
783 |
/* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
|
784 |
#define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p) |
|
785 |
#define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(enc, p) |
|
786 |
#define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(enc, p, c) |
|
787 |
#define IS_NAME_CHAR(enc, p, n) 0 |
|
788 |
#define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(enc, p) |
|
789 |
#define IS_NMSTRT_CHAR(enc, p, n) (0) |
|
790 |
#define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
|
791 |
|
|
792 |
#include "xmltok_impl_c.h" |
|
793 |
|
|
794 |
#undef MINBPC |
|
795 |
#undef BYTE_TYPE |
|
796 |
#undef BYTE_TO_ASCII |
|
797 |
#undef CHAR_MATCHES |
|
798 |
#undef IS_NAME_CHAR |
|
799 |
#undef IS_NAME_CHAR_MINBPC |
|
800 |
#undef IS_NMSTRT_CHAR |
|
801 |
#undef IS_NMSTRT_CHAR_MINBPC |
|
802 |
#undef IS_INVALID_CHAR |
|
803 |
|
|
804 |
#endif /* not XML_MIN_SIZE */ |
|
805 |
|
|
806 |
#ifdef XML_NS |
|
807 |
|
|
808 |
static const struct normal_encoding big2_encoding_ns = { |
|
809 |
{ VTABLE, 2, 0, |
|
810 |
#if XML_BYTE_ORDER == 21 |
|
811 |
1 |
|
812 |
#else |
|
813 |
0 |
|
814 |
#endif |
|
815 |
}, |
|
816 |
{ |
|
817 |
#include "asciitab.h" |
|
818 |
#include "latin1tab.h" |
|
819 |
}, |
|
820 |
STANDARD_VTABLE(big2_) |
|
821 |
}; |
|
822 |
|
|
823 |
#endif |
|
824 |
|
|
825 |
static const struct normal_encoding big2_encoding = { |
|
826 |
{ VTABLE, 2, 0, |
|
827 |
#if XML_BYTE_ORDER == 21 |
|
828 |
1 |
|
829 |
#else |
|
830 |
0 |
|
831 |
#endif |
|
832 |
}, |
|
833 |
{ |
|
834 |
#define BT_COLON BT_NMSTRT |
|
835 |
#include "asciitab.h" |
|
836 |
#undef BT_COLON |
|
837 |
#include "latin1tab.h" |
|
838 |
}, |
|
839 |
STANDARD_VTABLE(big2_) |
|
840 |
}; |
|
841 |
|
|
842 |
#if XML_BYTE_ORDER != 12 |
|
843 |
|
|
844 |
#ifdef XML_NS |
|
845 |
|
|
846 |
static const struct normal_encoding internal_big2_encoding_ns = { |
|
847 |
{ VTABLE, 2, 0, 1 }, |
|
848 |
{ |
|
849 |
#include "iasciitab.h" |
|
850 |
#include "latin1tab.h" |
|
851 |
}, |
|
852 |
STANDARD_VTABLE(big2_) |
|
853 |
}; |
|
854 |
|
|
855 |
#endif |
|
856 |
|
|
857 |
static const struct normal_encoding internal_big2_encoding = { |
|
858 |
{ VTABLE, 2, 0, 1 }, |
|
859 |
{ |
|
860 |
#define BT_COLON BT_NMSTRT |
|
861 |
#include "iasciitab.h" |
|
862 |
#undef BT_COLON |
|
863 |
#include "latin1tab.h" |
|
864 |
}, |
|
865 |
STANDARD_VTABLE(big2_) |
|
866 |
}; |
|
867 |
|
|
868 |
#endif |
|
869 |
|
|
870 |
#undef PREFIX |
|
871 |
|
|
872 |
static |
|
873 |
int streqci(const char *s1, const char *s2) |
|
874 |
{ |
|
875 |
for (;;) { |
|
876 |
char c1 = *s1++; |
|
877 |
char c2 = *s2++; |
|
878 |
if ('a' <= c1 && c1 <= 'z') |
|
879 |
c1 += 'A' - 'a'; |
|
880 |
if ('a' <= c2 && c2 <= 'z') |
|
881 |
c2 += 'A' - 'a'; |
|
882 |
if (c1 != c2) |
|
883 |
return 0; |
|
884 |
if (!c1) |
|
885 |
break; |
|
886 |
} |
|
887 |
return 1; |
|
888 |
} |
|
889 |
|
|
890 |
static |
|
891 |
void initUpdatePosition(const ENCODING *enc, const char *ptr, |
|
892 |
const char *end, POSITION *pos) |
|
893 |
{ |
|
894 |
normal_updatePosition(&utf8_encoding.enc, ptr, end, pos); |
|
895 |
} |
|
896 |
|
|
897 |
static |
|
898 |
int toAscii(const ENCODING *enc, const char *ptr, const char *end) |
|
899 |
{ |
|
900 |
char buf[1]; |
|
901 |
char *p = buf; |
|
902 |
XmlUtf8Convert(enc, &ptr, end, &p, p + 1); |
|
903 |
if (p == buf) |
|
904 |
return -1; |
|
905 |
else |
|
906 |
return buf[0]; |
|
907 |
} |
|
908 |
|
|
909 |
static |
|
910 |
int isSpace(int c) |
|
911 |
{ |
|
912 |
switch (c) { |
|
913 |
case 0x20: |
|
914 |
case 0xD: |
|
915 |
case 0xA: |
|
916 |
case 0x9: |
|
917 |
return 1; |
|
918 |
} |
|
919 |
return 0; |
|
920 |
} |
|
921 |
|
|
922 |
/* Return 1 if there's just optional white space |
|
923 |
or there's an S followed by name=val. */ |
|
924 |
static |
|
925 |
int parsePseudoAttribute(const ENCODING *enc, |
|
926 |
const char *ptr, |
|
927 |
const char *end, |
|
928 |
const char **namePtr, |
|
929 |
const char **valPtr, |
|
930 |
const char **nextTokPtr) |
|
931 |
{ |
|
932 |
int c; |
|
933 |
char open; |
|
934 |
if (ptr == end) { |
|
935 |
*namePtr = 0; |
|
936 |
return 1; |
|
937 |
} |
|
938 |
if (!isSpace(toAscii(enc, ptr, end))) { |
|
939 |
*nextTokPtr = ptr; |
|
940 |
return 0; |
|
941 |
} |
|
942 |
do { |
|
943 |
ptr += enc->minBytesPerChar; |
|
944 |
} while (isSpace(toAscii(enc, ptr, end))); |
|
945 |
if (ptr == end) { |
|
946 |
*namePtr = 0; |
|
947 |
return 1; |
|
948 |
} |
|
949 |
*namePtr = ptr; |
|
950 |
for (;;) { |
|
951 |
c = toAscii(enc, ptr, end); |
|
952 |
if (c == -1) { |
|
953 |
*nextTokPtr = ptr; |
|
954 |
return 0; |
|
955 |
} |
|
956 |
if (c == '=') |
|
957 |
break; |
|
958 |
if (isSpace(c)) { |
|
959 |
do { |
|
960 |
ptr += enc->minBytesPerChar; |
|
961 |
} while (isSpace(c = toAscii(enc, ptr, end))); |
|
962 |
if (c != '=') { |
|
963 |
*nextTokPtr = ptr; |
|
964 |
return 0; |
|
965 |
} |
|
966 |
break; |
|
967 |
} |
|
968 |
ptr += enc->minBytesPerChar; |
|
969 |
} |
|
970 |
if (ptr == *namePtr) { |
|
971 |
*nextTokPtr = ptr; |
|
972 |
return 0; |
|
973 |
} |
|
974 |
ptr += enc->minBytesPerChar; |
|
975 |
c = toAscii(enc, ptr, end); |
|
976 |
while (isSpace(c)) { |
|
977 |
ptr += enc->minBytesPerChar; |
|
978 |
c = toAscii(enc, ptr, end); |
|
979 |
} |
|
980 |
if (c != '"' && c != '\'') { |
|
981 |
*nextTokPtr = ptr; |
|
982 |
return 0; |
|
983 |
} |
|
984 |
open = c; |
|
985 |
ptr += enc->minBytesPerChar; |
|
986 |
*valPtr = ptr; |
|
987 |
for (;; ptr += enc->minBytesPerChar) { |
|
988 |
c = toAscii(enc, ptr, end); |
|
989 |
if (c == open) |
|
990 |
break; |
|
991 |
if (!('a' <= c && c <= 'z') |
|
992 |
&& !('A' <= c && c <= 'Z') |
|
993 |
&& !('0' <= c && c <= '9') |
|
994 |
&& c != '.' |
|
995 |
&& c != '-' |
|
996 |
&& c != '_') { |
|
997 |
*nextTokPtr = ptr; |
|
998 |
return 0; |
|
999 |
} |
|
1000 |
} |
|
1001 |
*nextTokPtr = ptr + enc->minBytesPerChar; |
|
1002 |
return 1; |
|
1003 |
} |
|
1004 |
|
|
1005 |
static |
|
1006 |
int doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *, |
|
1007 |
const char *, |
|
1008 |
const char *), |
|
1009 |
int isGeneralTextEntity, |
|
1010 |
const ENCODING *enc, |
|
1011 |
const char *ptr, |
|
1012 |
const char *end, |
|
1013 |
const char **badPtr, |
|
1014 |
const char **versionPtr, |
|
1015 |
const char **encodingName, |
|
1016 |
const ENCODING **encoding, |
|
1017 |
int *standalone) |
|
1018 |
{ |
|
1019 |
const char *val = 0; |
|
1020 |
const char *name = 0; |
|
1021 |
ptr += 5 * enc->minBytesPerChar; |
|
1022 |
end -= 2 * enc->minBytesPerChar; |
|
1023 |
if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr) || !name) { |
|
1024 |
*badPtr = ptr; |
|
1025 |
return 0; |
|
1026 |
} |
|
1027 |
if (!XmlNameMatchesAscii(enc, name, "version")) { |
|
1028 |
if (!isGeneralTextEntity) { |
|
1029 |
*badPtr = name; |
|
1030 |
return 0; |
|
1031 |
} |
|
1032 |
} |
|
1033 |
else { |
|
1034 |
if (versionPtr) |
|
1035 |
*versionPtr = val; |
|
1036 |
if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr)) { |
|
1037 |
*badPtr = ptr; |
|
1038 |
return 0; |
|
1039 |
} |
|
1040 |
if (!name) { |
|
1041 |
if (isGeneralTextEntity) { |
|
1042 |
/* a TextDecl must have an EncodingDecl */ |
|
1043 |
*badPtr = ptr; |
|
1044 |
return 0; |
|
1045 |
} |
|
1046 |
return 1; |
|
1047 |
} |
|
1048 |
} |
|
1049 |
if (XmlNameMatchesAscii(enc, name, "encoding")) { |
|
1050 |
int c = toAscii(enc, val, end); |
|
1051 |
if (!('a' <= c && c <= 'z') && !('A' <= c && c <= 'Z')) { |
|
1052 |
*badPtr = val; |
|
1053 |
return 0; |
|
1054 |
} |
|
1055 |
if (encodingName) |
|
1056 |
*encodingName = val; |
|
1057 |
if (encoding) |
|
1058 |
*encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar); |
|
1059 |
if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr)) { |
|
1060 |
*badPtr = ptr; |
|
1061 |
return 0; |
|
1062 |
} |
|
1063 |
if (!name) |
|
1064 |
return 1; |
|
1065 |
} |
|
1066 |
if (!XmlNameMatchesAscii(enc, name, "standalone") || isGeneralTextEntity) { |
|
1067 |
*badPtr = name; |
|
1068 |
return 0; |
|
1069 |
} |
|
1070 |
if (XmlNameMatchesAscii(enc, val, "yes")) { |
|
1071 |
if (standalone) |
|
1072 |
*standalone = 1; |
|
1073 |
} |
|
1074 |
else if (XmlNameMatchesAscii(enc, val, "no")) { |
|
1075 |
if (standalone) |
|
1076 |
*standalone = 0; |
|
1077 |
} |
|
1078 |
else { |
|
1079 |
*badPtr = val; |
|
1080 |
return 0; |
|
1081 |
} |
|
1082 |
while (isSpace(toAscii(enc, ptr, end))) |
|
1083 |
ptr += enc->minBytesPerChar; |
|
1084 |
if (ptr != end) { |
|
1085 |
*badPtr = ptr; |
|
1086 |
return 0; |
|
1087 |
} |
|
1088 |
return 1; |
|
1089 |
} |
|
1090 |
|
|
1091 |
static |
|
1092 |
int checkCharRefNumber(int result) |
|
1093 |
{ |
|
1094 |
switch (result >> 8) { |
|
1095 |
case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
|
1096 |
case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
|
1097 |
return -1; |
|
1098 |
case 0: |
|
1099 |
if (latin1_encoding.type[result] == BT_NONXML) |
|
1100 |
return -1; |
|
1101 |
break; |
|
1102 |
case 0xFF: |
|
1103 |
if (result == 0xFFFE || result == 0xFFFF) |
|
1104 |
return -1; |
|
1105 |
break; |
|
1106 |
} |
|
1107 |
return result; |
|
1108 |
} |
|
1109 |
|
|
1110 |
int XmlUtf8Encode(int c, char *buf) |
|
1111 |
{ |
|
1112 |
enum { |
|
1113 |
/* minN is minimum legal resulting value for N byte sequence */ |
|
1114 |
min2 = 0x80, |
|
1115 |
min3 = 0x800, |
|
1116 |
min4 = 0x10000 |
|
1117 |
}; |
|
1118 |
|
|
1119 |
if (c < 0) |
|
1120 |
return 0; |
|
1121 |
if (c < min2) { |
|
1122 |
buf[0] = (c | UTF8_cval1); |
|
1123 |
return 1; |
|
1124 |
} |
|
1125 |
if (c < min3) { |
|
1126 |
buf[0] = ((c >> 6) | UTF8_cval2); |
|
1127 |
buf[1] = ((c & 0x3f) | 0x80); |
|
1128 |
return 2; |
|
1129 |
} |
|
1130 |
if (c < min4) { |
|
1131 |
buf[0] = ((c >> 12) | UTF8_cval3); |
|
1132 |
buf[1] = (((c >> 6) & 0x3f) | 0x80); |
|
1133 |
buf[2] = ((c & 0x3f) | 0x80); |
|
1134 |
return 3; |
|
1135 |
} |
|
1136 |
if (c < 0x110000) { |
|
1137 |
buf[0] = ((c >> 18) | UTF8_cval4); |
|
1138 |
buf[1] = (((c >> 12) & 0x3f) | 0x80); |
|
1139 |
buf[2] = (((c >> 6) & 0x3f) | 0x80); |
|
1140 |
buf[3] = ((c & 0x3f) | 0x80); |
|
1141 |
return 4; |
|
1142 |
} |
|
1143 |
return 0; |
|
1144 |
} |
|
1145 |
|
|
1146 |
int XmlUtf16Encode(int charNum, unsigned short *buf) |
|
1147 |
{ |
|
1148 |
if (charNum < 0) |
|
1149 |
return 0; |
|
1150 |
if (charNum < 0x10000) { |
|
1151 |
buf[0] = charNum; |
|
1152 |
return 1; |
|
1153 |
} |
|
1154 |
if (charNum < 0x110000) { |
|
1155 |
charNum -= 0x10000; |
|
1156 |
buf[0] = (charNum >> 10) + 0xD800; |
|
1157 |
buf[1] = (charNum & 0x3FF) + 0xDC00; |
|
1158 |
return 2; |
|
1159 |
} |
|
1160 |
return 0; |
|
1161 |
} |
|
1162 |
|
|
1163 |
struct unknown_encoding { |
|
1164 |
struct normal_encoding normal; |
|
1165 |
int (*convert)(void *userData, const char *p); |
|
1166 |
void *userData; |
|
1167 |
unsigned short utf16[256]; |
|
1168 |
char utf8[256][4]; |
|
1169 |
}; |
|
1170 |
|
|
1171 |
int XmlSizeOfUnknownEncoding() |
|
1172 |
{ |
|
1173 |
return sizeof(struct unknown_encoding); |
|
1174 |
} |
|
1175 |
|
|
1176 |
static |
|
1177 |
int unknown_isName(const ENCODING *enc, const char *p) |
|
1178 |
{ |
|
1179 |
int c = ((const struct unknown_encoding *)enc) |
|
1180 |
->convert(((const struct unknown_encoding *)enc)->userData, p); |
|
1181 |
if (c & ~0xFFFF) |
|
1182 |
return 0; |
|
1183 |
return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF); |
|
1184 |
} |
|
1185 |
|
|
1186 |
static |
|
1187 |
int unknown_isNmstrt(const ENCODING *enc, const char *p) |
|
1188 |
{ |
|
1189 |
int c = ((const struct unknown_encoding *)enc) |
|
1190 |
->convert(((const struct unknown_encoding *)enc)->userData, p); |
|
1191 |
if (c & ~0xFFFF) |
|
1192 |
return 0; |
|
1193 |
return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF); |
|
1194 |
} |
|
1195 |
|
|
1196 |
static |
|
1197 |
int unknown_isInvalid(const ENCODING *enc, const char *p) |
|
1198 |
{ |
|
1199 |
int c = ((const struct unknown_encoding *)enc) |
|
1200 |
->convert(((const struct unknown_encoding *)enc)->userData, p); |
|
1201 |
return (c & ~0xFFFF) || checkCharRefNumber(c) < 0; |
|
1202 |
} |
|
1203 |
|
|
1204 |
static |
|
1205 |
void unknown_toUtf8(const ENCODING *enc, |
|
1206 |
const char **fromP, const char *fromLim, |
|
1207 |
char **toP, const char *toLim) |
|
1208 |
{ |
|
1209 |
char buf[XML_UTF8_ENCODE_MAX]; |
|
1210 |
for (;;) { |
|
1211 |
const char *utf8; |
|
1212 |
int n; |
|
1213 |
if (*fromP == fromLim) |
|
1214 |
break; |
|
1215 |
utf8 = ((const struct unknown_encoding *)enc)->utf8[(unsigned char)**fromP]; |
|
1216 |
n = *utf8++; |
|
1217 |
if (n == 0) { |
|
1218 |
int c = ((const struct unknown_encoding *)enc) |
|
1219 |
->convert(((const struct unknown_encoding *)enc)->userData, *fromP); |
|
1220 |
n = XmlUtf8Encode(c, buf); |
|
1221 |
if (n > toLim - *toP) |
|
1222 |
break; |
|
1223 |
utf8 = buf; |
|
1224 |
*fromP += ((const struct normal_encoding *)enc)->type[(unsigned char)**fromP] |
|
1225 |
- (BT_LEAD2 - 2); |
|
1226 |
} |
|
1227 |
else { |
|
1228 |
if (n > toLim - *toP) |
|
1229 |
break; |
|
1230 |
(*fromP)++; |
|
1231 |
} |
|
1232 |
do { |
|
1233 |
*(*toP)++ = *utf8++; |
|
1234 |
} while (--n != 0); |
|
1235 |
} |
|
1236 |
} |
|
1237 |
|
|
1238 |
static |
|
1239 |
void unknown_toUtf16(const ENCODING *enc, |
|
1240 |
const char **fromP, const char *fromLim, |
|
1241 |
unsigned short **toP, const unsigned short *toLim) |
|
1242 |
{ |
|
1243 |
while (*fromP != fromLim && *toP != toLim) { |
|
1244 |
unsigned short c |
|
1245 |
= ((const struct unknown_encoding *)enc)->utf16[(unsigned char)**fromP]; |
|
1246 |
if (c == 0) { |
|
1247 |
c = (unsigned short)((const struct unknown_encoding *)enc) |
|
1248 |
->convert(((const struct unknown_encoding *)enc)->userData, *fromP); |
|
1249 |
*fromP += ((const struct normal_encoding *)enc)->type[(unsigned char)**fromP] |
|
1250 |
- (BT_LEAD2 - 2); |
|
1251 |
} |
|
1252 |
else |
|
1253 |
(*fromP)++; |
|
1254 |
*(*toP)++ = c; |
|
1255 |
} |
|
1256 |
} |
|
1257 |
|
|
1258 |
ENCODING * |
|
1259 |
XmlInitUnknownEncoding(void *mem, |
|
1260 |
int *table, |
|
1261 |
int (*convert)(void *userData, const char *p), |
|
1262 |
void *userData) |
|
1263 |
{ |
|
1264 |
int i; |
|
1265 |
struct unknown_encoding *e = mem; |
|
1266 |
for (i = 0; i < sizeof(struct normal_encoding); i++) |
|
1267 |
((char *)mem)[i] = ((char *)&latin1_encoding)[i]; |
|
1268 |
for (i = 0; i < 128; i++) |
|
1269 |
if (latin1_encoding.type[i] != BT_OTHER |
|
1270 |
&& latin1_encoding.type[i] != BT_NONXML |
|
1271 |
&& table[i] != i) |
|
1272 |
return 0; |
|
1273 |
for (i = 0; i < 256; i++) { |
|
1274 |
int c = table[i]; |
|
1275 |
if (c == -1) { |
|
1276 |
e->normal.type[i] = BT_MALFORM; |
|
1277 |
/* This shouldn't really get used. */ |
|
1278 |
e->utf16[i] = 0xFFFF; |
|
1279 |
e->utf8[i][0] = 1; |
|
1280 |
e->utf8[i][1] = 0; |
|
1281 |
} |
|
1282 |
else if (c < 0) { |
|
1283 |
if (c < -4) |
|
1284 |
return 0; |
|
1285 |
e->normal.type[i] = BT_LEAD2 - (c + 2); |
|
1286 |
e->utf8[i][0] = 0; |
|
1287 |
e->utf16[i] = 0; |
|
1288 |
} |
|
1289 |
else if (c < 0x80) { |
|
1290 |
if (latin1_encoding.type[c] != BT_OTHER |
|
1291 |
&& latin1_encoding.type[c] != BT_NONXML |
|
1292 |
&& c != i) |
|
1293 |
return 0; |
|
1294 |
e->normal.type[i] = latin1_encoding.type[c]; |
|
1295 |
e->utf8[i][0] = 1; |
|
1296 |
e->utf8[i][1] = (char)c; |
|
1297 |
e->utf16[i] = c == 0 ? 0xFFFF : c; |
|
1298 |
} |
|
1299 |
else if (checkCharRefNumber(c) < 0) { |
|
1300 |
e->normal.type[i] = BT_NONXML; |
|
1301 |
/* This shouldn't really get used. */ |
|
1302 |
e->utf16[i] = 0xFFFF; |
|
1303 |
e->utf8[i][0] = 1; |
|
1304 |
e->utf8[i][1] = 0; |
|
1305 |
} |
|
1306 |
else { |
|
1307 |
if (c > 0xFFFF) |
|
1308 |
return 0; |
|
1309 |
if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff)) |
|
1310 |
e->normal.type[i] = BT_NMSTRT; |
|
1311 |
else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff)) |
|
1312 |
e->normal.type[i] = BT_NAME; |
|
1313 |
else |
|
1314 |
e->normal.type[i] = BT_OTHER; |
|
1315 |
e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1); |
|
1316 |
e->utf16[i] = c; |
|
1317 |
} |
|
1318 |
} |
|
1319 |
e->userData = userData; |
|
1320 |
e->convert = convert; |
|
1321 |
if (convert) { |
|
1322 |
e->normal.isName2 = unknown_isName; |
|
1323 |
e->normal.isName3 = unknown_isName; |
|
1324 |
e->normal.isName4 = unknown_isName; |
|
1325 |
e->normal.isNmstrt2 = unknown_isNmstrt; |
|
1326 |
e->normal.isNmstrt3 = unknown_isNmstrt; |
|
1327 |
e->normal.isNmstrt4 = unknown_isNmstrt; |
|
1328 |
e->normal.isInvalid2 = unknown_isInvalid; |
|
1329 |
e->normal.isInvalid3 = unknown_isInvalid; |
|
1330 |
e->normal.isInvalid4 = unknown_isInvalid; |
|
1331 |
} |
|
1332 |
e->normal.enc.utf8Convert = unknown_toUtf8; |
|
1333 |
e->normal.enc.utf16Convert = unknown_toUtf16; |
|
1334 |
return &(e->normal.enc); |
|
1335 |
} |
|
1336 |
|
|
1337 |
/* If this enumeration is changed, getEncodingIndex and encodings |
|
1338 |
must also be changed. */ |
|
1339 |
enum { |
|
1340 |
UNKNOWN_ENC = -1, |
|
1341 |
ISO_8859_1_ENC = 0, |
|
1342 |
US_ASCII_ENC, |
|
1343 |
UTF_8_ENC, |
|
1344 |
UTF_16_ENC, |
|
1345 |
UTF_16BE_ENC, |
|
1346 |
UTF_16LE_ENC, |
|
1347 |
/* must match encodingNames up to here */ |
|
1348 |
NO_ENC |
|
1349 |
}; |
|
1350 |
|
|
1351 |
static |
|
1352 |
int getEncodingIndex(const char *name) |
|
1353 |
{ |
|
1354 |
static const char *encodingNames[] = { |
|
1355 |
"ISO-8859-1", |
|
1356 |
"US-ASCII", |
|
1357 |
"UTF-8", |
|
1358 |
"UTF-16", |
|
1359 |
"UTF-16BE" |
|
1360 |
"UTF-16LE", |
|
1361 |
}; |
|
1362 |
int i; |
|
1363 |
if (name == 0) |
|
1364 |
return NO_ENC; |
|
1365 |
for (i = 0; i < sizeof(encodingNames)/sizeof(encodingNames[0]); i++) |
|
1366 |
if (streqci(name, encodingNames[i])) |
|
1367 |
return i; |
|
1368 |
return UNKNOWN_ENC; |
|
1369 |
} |
|
1370 |
|
|
1371 |
/* For binary compatibility, we store the index of the encoding specified |
|
1372 |
at initialization in the isUtf16 member. */ |
|
1373 |
|
|
1374 |
#define INIT_ENC_INDEX(enc) ((enc)->initEnc.isUtf16) |
|
1375 |
|
|
1376 |
/* This is what detects the encoding. |
|
1377 |
encodingTable maps from encoding indices to encodings; |
|
1378 |
INIT_ENC_INDEX(enc) is the index of the external (protocol) specified encoding; |
|
1379 |
state is XML_CONTENT_STATE if we're parsing an external text entity, |
|
1380 |
and XML_PROLOG_STATE otherwise. |
|
1381 |
*/ |
|
1382 |
|
|
1383 |
|
|
1384 |
static |
|
1385 |
int initScan(const ENCODING **encodingTable, |
|
1386 |
const INIT_ENCODING *enc, |
|
1387 |
int state, |
|
1388 |
const char *ptr, |
|
1389 |
const char *end, |
|
1390 |
const char **nextTokPtr) |
|
1391 |
{ |
|
1392 |
const ENCODING **encPtr; |
|
1393 |
|
|
1394 |
if (ptr == end) |
|
1395 |
return XML_TOK_NONE; |
|
1396 |
encPtr = enc->encPtr; |
|
1397 |
if (ptr + 1 == end) { |
|
1398 |
/* only a single byte available for auto-detection */ |
|
1399 |
/* a well-formed document entity must have more than one byte */ |
|
1400 |
if (state != XML_CONTENT_STATE) |
|
1401 |
return XML_TOK_PARTIAL; |
|
1402 |
/* so we're parsing an external text entity... */ |
|
1403 |
/* if UTF-16 was externally specified, then we need at least 2 bytes */ |
|
1404 |
switch (INIT_ENC_INDEX(enc)) { |
|
1405 |
case UTF_16_ENC: |
|
1406 |
case UTF_16LE_ENC: |
|
1407 |
case UTF_16BE_ENC: |
|
1408 |
return XML_TOK_PARTIAL; |
|
1409 |
} |
|
1410 |
switch ((unsigned char)*ptr) { |
|
1411 |
case 0xFE: |
|
1412 |
case 0xFF: |
|
1413 |
case 0xEF: /* possibly first byte of UTF-8 BOM */ |
|
1414 |
if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
|
1415 |
&& state == XML_CONTENT_STATE) |
|
1416 |
break; |
|
1417 |
/* fall through */ |
|
1418 |
case 0x00: |
|
1419 |
case 0x3C: |
|
1420 |
return XML_TOK_PARTIAL; |
|
1421 |
} |
|
1422 |
} |
|
1423 |
else { |
|
1424 |
switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) { |
|
1425 |
case 0xFEFF: |
|
1426 |
if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
|
1427 |
&& state == XML_CONTENT_STATE) |
|
1428 |
break; |
|
1429 |
*nextTokPtr = ptr + 2; |
|
1430 |
*encPtr = encodingTable[UTF_16BE_ENC]; |
|
1431 |
return XML_TOK_BOM; |
|
1432 |
/* 00 3C is handled in the default case */ |
|
1433 |
case 0x3C00: |
|
1434 |
if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC |
|
1435 |
|| INIT_ENC_INDEX(enc) == UTF_16_ENC) |
|
1436 |
&& state == XML_CONTENT_STATE) |
|
1437 |
break; |
|
1438 |
*encPtr = encodingTable[UTF_16LE_ENC]; |
|
1439 |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
|
1440 |
case 0xFFFE: |
|
1441 |
if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
|
1442 |
&& state == XML_CONTENT_STATE) |
|
1443 |
break; |
|
1444 |
*nextTokPtr = ptr + 2; |
|
1445 |
*encPtr = encodingTable[UTF_16LE_ENC]; |
|
1446 |
return XML_TOK_BOM; |
|
1447 |
case 0xEFBB: |
|
1448 |
/* Maybe a UTF-8 BOM (EF BB BF) */ |
|
1449 |
/* If there's an explicitly specified (external) encoding |
|
1450 |
of ISO-8859-1 or some flavour of UTF-16 |
|
1451 |
and this is an external text entity, |
|
1452 |
don't look for the BOM, |
|
1453 |
because it might be a legal data. */ |
|
1454 |
if (state == XML_CONTENT_STATE) { |
|
1455 |
int e = INIT_ENC_INDEX(enc); |
|
1456 |
if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC || e == UTF_16LE_ENC || e == UTF_16_ENC) |
|
1457 |
break; |
|
1458 |
} |
|
1459 |
if (ptr + 2 == end) |
|
1460 |
return XML_TOK_PARTIAL; |
|
1461 |
if ((unsigned char)ptr[2] == 0xBF) { |
|
1462 |
*encPtr = encodingTable[UTF_8_ENC]; |
|
1463 |
return XML_TOK_BOM; |
|
1464 |
} |
|
1465 |
break; |
|
1466 |
default: |
|
1467 |
if (ptr[0] == '\0') { |
|
1468 |
/* 0 isn't a legal data character. Furthermore a document entity can only |
|
1469 |
start with ASCII characters. So the only way this can fail to be big-endian |
|
1470 |
UTF-16 if it it's an external parsed general entity that's labelled as |
|
1471 |
UTF-16LE. */ |
|
1472 |
if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC) |
|
1473 |
break; |
|
1474 |
*encPtr = encodingTable[UTF_16BE_ENC]; |
|
1475 |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
|
1476 |
} |
|
1477 |
else if (ptr[1] == '\0') { |
|
1478 |
/* We could recover here in the case: |
|
1479 |
- parsing an external entity |
|
1480 |
- second byte is 0 |
|
1481 |
- no externally specified encoding |
|
1482 |
- no encoding declaration |
|
1483 |
by assuming UTF-16LE. But we don't, because this would mean when |
|
1484 |
presented just with a single byte, we couldn't reliably determine |
|
1485 |
whether we needed further bytes. */ |
|
1486 |
if (state == XML_CONTENT_STATE) |
|
1487 |
break; |
|
1488 |
*encPtr = encodingTable[UTF_16LE_ENC]; |
|
1489 |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
|
1490 |
} |
|
1491 |
break; |
|
1492 |
} |
|
1493 |
} |
|
1494 |
*encPtr = encodingTable[INIT_ENC_INDEX(enc)]; |
|
1495 |
return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
|
1496 |
} |
|
1497 |
|
|
1498 |
|
|
1499 |
#define NS(x) x |
|
1500 |
#define ns(x) x |
|
1501 |
#include "xmltok_ns_c.h" |
|
1502 |
#undef NS |
|
1503 |
#undef ns |
|
1504 |
|
|
1505 |
#ifdef XML_NS |
|
1506 |
|
|
1507 |
#define NS(x) x ## NS |
|
1508 |
#define ns(x) x ## _ns |
|
1509 |
|
|
1510 |
#include "xmltok_ns_c.h" |
|
1511 |
|
|
1512 |
#undef NS |
|
1513 |
#undef ns |
|
1514 |
|
|
1515 |
ENCODING * |
|
1516 |
XmlInitUnknownEncodingNS(void *mem, |
|
1517 |
int *table, |
|
1518 |
int (*convert)(void *userData, const char *p), |
|
1519 |
void *userData) |
|
1520 |
{ |
|
1521 |
ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData); |
|
1522 |
if (enc) |
|
1523 |
((struct normal_encoding *)enc)->type[':'] = BT_COLON; |
|
1524 |
return enc; |
|
1525 |
} |
|
1526 |
|
|
1527 |
#endif /* XML_NS */ |