--- /dev/null
+/* streamio.c -- handles character stream I/O
+
+ (c) 1998-2008 (W3C) MIT, ERCIM, Keio University
+ See tidy.h for the copyright notice.
+
+ Wrapper around Tidy input source and output sink
+ that calls appropriate interfaces, and applies
+ necessary char encoding transformations: to/from
+ ISO-10646 and/or UTF-8.
+
+*/
+
+#include <stdio.h>
+#include <errno.h>
+
+#include "streamio.h"
+#include "tidy-int.h"
+#include "lexer.h"
+#include "message.h"
+#include "utf8.h"
+#include "tmbstr.h"
+
+#ifdef TIDY_WIN32_MLANG_SUPPORT
+#include "win32tc.h"
+#endif
+
+/************************
+** Forward Declarations
+************************/
+
+static uint ReadCharFromStream( StreamIn* in );
+
+static uint ReadByte( StreamIn* in );
+static void UngetByte( StreamIn* in, uint byteValue );
+
+static void PutByte( uint byteValue, StreamOut* out );
+
+static void EncodeWin1252( uint c, StreamOut* out );
+static void EncodeMacRoman( uint c, StreamOut* out );
+static void EncodeIbm858( uint c, StreamOut* out );
+static void EncodeLatin0( uint c, StreamOut* out );
+
+static uint DecodeIbm850(uint c);
+static uint DecodeLatin0(uint c);
+
+static uint PopChar( StreamIn *in );
+
+/******************************
+** Static (duration) Globals
+******************************/
+
+static StreamOut stderrStreamOut =
+{
+ ASCII,
+ FSM_ASCII,
+ DEFAULT_NL_CONFIG,
+#ifdef TIDY_WIN32_MLANG_SUPPORT
+ NULL,
+#endif
+ FileIO,
+ { 0, TY_(filesink_putByte) }
+};
+
+static StreamOut stdoutStreamOut =
+{
+ ASCII,
+ FSM_ASCII,
+ DEFAULT_NL_CONFIG,
+#ifdef TIDY_WIN32_MLANG_SUPPORT
+ NULL,
+#endif
+ FileIO,
+ { 0, TY_(filesink_putByte) }
+};
+
+StreamOut* TY_(StdErrOutput)(void)
+{
+ if ( stderrStreamOut.sink.sinkData == 0 )
+ stderrStreamOut.sink.sinkData = stderr;
+ return &stderrStreamOut;
+}
+
+#if 0
+StreamOut* TY_(StdOutOutput)(void)
+{
+ if ( stdoutStreamOut.sink.sinkData == 0 )
+ stdoutStreamOut.sink.sinkData = stdout;
+ return &stdoutStreamOut;
+}
+#endif
+
+void TY_(ReleaseStreamOut)( TidyDocImpl *doc, StreamOut* out )
+{
+ if ( out && out != &stderrStreamOut && out != &stdoutStreamOut )
+ {
+ if ( out->iotype == FileIO )
+ fclose( (FILE*) out->sink.sinkData );
+ TidyDocFree( doc, out );
+ }
+}
+
+/************************
+** Source
+************************/
+
+static void InitLastPos( StreamIn *in );
+
+StreamIn* TY_(initStreamIn)( TidyDocImpl* doc, int encoding )
+{
+ StreamIn *in = (StreamIn*) TidyDocAlloc( doc, sizeof(StreamIn) );
+
+ TidyClearMemory( in, sizeof(StreamIn) );
+ in->curline = 1;
+ in->curcol = 1;
+ in->encoding = encoding;
+ in->state = FSM_ASCII;
+ in->doc = doc;
+ in->bufsize = CHARBUF_SIZE;
+ in->allocator = doc->allocator;
+ in->charbuf = (tchar*)TidyDocAlloc(doc, sizeof(tchar) * in->bufsize);
+ InitLastPos( in );
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ in->otextbuf = NULL;
+ in->otextlen = 0;
+ in->otextsize = 0;
+#endif
+ return in;
+}
+
+void TY_(freeStreamIn)(StreamIn* in)
+{
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ if (in->otextbuf)
+ TidyFree(in->allocator, in->otextbuf);
+#endif
+ TidyFree(in->allocator, in->charbuf);
+ TidyFree(in->allocator, in);
+}
+
+StreamIn* TY_(FileInput)( TidyDocImpl* doc, FILE *fp, int encoding )
+{
+ StreamIn *in = TY_(initStreamIn)( doc, encoding );
+ if ( TY_(initFileSource)( doc->allocator, &in->source, fp ) != 0 )
+ {
+ TY_(freeStreamIn)( in );
+ return NULL;
+ }
+ in->iotype = FileIO;
+ return in;
+}
+
+StreamIn* TY_(BufferInput)( TidyDocImpl* doc, TidyBuffer* buf, int encoding )
+{
+ StreamIn *in = TY_(initStreamIn)( doc, encoding );
+ tidyInitInputBuffer( &in->source, buf );
+ in->iotype = BufferIO;
+ return in;
+}
+
+StreamIn* TY_(UserInput)( TidyDocImpl* doc, TidyInputSource* source, int encoding )
+{
+ StreamIn *in = TY_(initStreamIn)( doc, encoding );
+ memcpy( &in->source, source, sizeof(TidyInputSource) );
+ in->iotype = UserIO;
+ return in;
+}
+
+int TY_(ReadBOMEncoding)(StreamIn *in)
+{
+ uint c, c1;
+#if SUPPORT_UTF16_ENCODINGS
+ uint bom;
+#endif
+
+ c = ReadByte(in);
+ if (c == EndOfStream)
+ return -1;
+
+ c1 = ReadByte( in );
+ if (c1 == EndOfStream)
+ {
+ UngetByte(in, c);
+ return -1;
+ }
+
+ /* todo: dont warn about mismatch for auto input encoding */
+ /* todo: let the user override the encoding found here */
+
+#if SUPPORT_UTF16_ENCODINGS
+ bom = (c << 8) + c1;
+
+ if ( bom == UNICODE_BOM_BE )
+ {
+ /* big-endian UTF-16 */
+ if ( in->encoding != UTF16 && in->encoding != UTF16BE )
+ TY_(ReportEncodingWarning)(in->doc, ENCODING_MISMATCH, UTF16BE);
+
+ return UTF16BE; /* return decoded BOM */
+ }
+ else if (bom == UNICODE_BOM_LE)
+ {
+ /* little-endian UTF-16 */
+ if (in->encoding != UTF16 && in->encoding != UTF16LE)
+ TY_(ReportEncodingWarning)(in->doc, ENCODING_MISMATCH, UTF16LE);
+
+ return UTF16LE; /* return decoded BOM */
+ }
+ else
+#endif /* SUPPORT_UTF16_ENCODINGS */
+ {
+ uint c2 = ReadByte(in);
+
+ if (c2 == EndOfStream)
+ {
+ UngetByte(in, c1);
+ UngetByte(in, c);
+ return -1;
+ }
+
+ if (((c << 16) + (c1 << 8) + c2) == UNICODE_BOM_UTF8)
+ {
+ /* UTF-8 */
+ if (in->encoding != UTF8)
+ TY_(ReportEncodingWarning)(in->doc, ENCODING_MISMATCH, UTF8);
+
+ return UTF8;
+ }
+ else
+ UngetByte( in, c2 );
+ }
+
+ UngetByte(in, c1);
+ UngetByte(in, c);
+
+ return -1;
+}
+
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+void TY_(AddByteToOriginalText)(StreamIn *in, tmbchar c)
+{
+ if (in->otextlen + 1 >= in->otextsize)
+ {
+ size_t size = in->otextsize ? 1 : 2;
+ in->otextbuf = TidyRealloc(in->allocator, in->otextbuf, in->otextsize + size);
+ in->otextsize += size;
+ }
+ in->otextbuf[in->otextlen++] = c;
+ in->otextbuf[in->otextlen ] = 0;
+}
+
+void TY_(AddCharToOriginalText)(StreamIn *in, tchar c)
+{
+ int i, err, count = 0;
+ tmbchar buf[10] = {0};
+
+ err = TY_(EncodeCharToUTF8Bytes)(c, buf, NULL, &count);
+
+ if (err)
+ {
+ /* replacement character 0xFFFD encoded as UTF-8 */
+ buf[0] = (byte) 0xEF;
+ buf[1] = (byte) 0xBF;
+ buf[2] = (byte) 0xBD;
+ count = 3;
+ }
+
+ for (i = 0; i < count; ++i)
+ TY_(AddByteToOriginalText)(in, buf[i]);
+}
+#endif
+
+static void InitLastPos( StreamIn *in )
+{
+ in->curlastpos = 0;
+ in->firstlastpos = 0;
+}
+
+static void PopLastPos( StreamIn *in )
+{
+ in->curlastpos = (in->curlastpos+1)%LASTPOS_SIZE;
+ if ( in->curlastpos == in->firstlastpos )
+ in->firstlastpos = (in->firstlastpos+1)%LASTPOS_SIZE;
+}
+
+static void SaveLastPos( StreamIn *in )
+{
+ PopLastPos( in );
+ in->lastcols[in->curlastpos] = in->curcol;
+}
+
+static void RestoreLastPos( StreamIn *in )
+{
+ if ( in->firstlastpos == in->curlastpos )
+ in->curcol = 0;
+ else
+ {
+ in->curcol = in->lastcols[in->curlastpos];
+ if ( in->curlastpos == 0 )
+ in->curlastpos = LASTPOS_SIZE;
+ in->curlastpos--;
+ }
+}
+
+uint TY_(ReadChar)( StreamIn *in )
+{
+ uint c = EndOfStream;
+ uint tabsize = cfg( in->doc, TidyTabSize );
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ Bool added = no;
+#endif
+
+ if ( in->pushed )
+ return PopChar( in );
+
+ SaveLastPos( in );
+
+ if ( in->tabs > 0 )
+ {
+ in->curcol++;
+ in->tabs--;
+ return ' ';
+ }
+
+ for (;;)
+ {
+ c = ReadCharFromStream(in);
+
+ if ( EndOfStream == c )
+ return EndOfStream;
+
+ if (c == '\n')
+ {
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ added = yes;
+ TY_(AddCharToOriginalText)(in, (tchar)c);
+#endif
+ in->curcol = 1;
+ in->curline++;
+ break;
+ }
+
+ if (c == '\t')
+ {
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ added = yes;
+ TY_(AddCharToOriginalText)(in, (tchar)c);
+#endif
+ in->tabs = tabsize > 0 ?
+ tabsize - ((in->curcol - 1) % tabsize) - 1
+ : 0;
+ in->curcol++;
+ c = ' ';
+ break;
+ }
+
+ /* #427663 - map '\r' to '\n' - Andy Quick 11 Aug 00 */
+ if (c == '\r')
+ {
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ added = yes;
+ TY_(AddCharToOriginalText)(in, (tchar)c);
+#endif
+ c = ReadCharFromStream(in);
+ if (c != '\n')
+ {
+ TY_(UngetChar)( c, in );
+ c = '\n';
+ }
+ else
+ {
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ TY_(AddCharToOriginalText)(in, (tchar)c);
+#endif
+ }
+ in->curcol = 1;
+ in->curline++;
+ break;
+ }
+
+#ifndef NO_NATIVE_ISO2022_SUPPORT
+ /* strip control characters, except for Esc */
+ if (c == '\033')
+ break;
+#endif
+
+ /* Form Feed is allowed in HTML */
+ if ( c == '\015' && !cfgBool(in->doc, TidyXmlTags) )
+ break;
+
+ if ( c < 32 )
+ continue; /* discard control char */
+
+ /* watch out for chars that have already been decoded such as */
+ /* IS02022, UTF-8 etc, that don't require further decoding */
+
+ if (
+ in->encoding == RAW
+#ifndef NO_NATIVE_ISO2022_SUPPORT
+ || in->encoding == ISO2022
+#endif
+ || in->encoding == UTF8
+
+#if SUPPORT_ASIAN_ENCODINGS
+ || in->encoding == SHIFTJIS /* #431953 - RJ */
+ || in->encoding == BIG5 /* #431953 - RJ */
+#endif
+ )
+ {
+ in->curcol++;
+ break;
+ }
+
+#if SUPPORT_UTF16_ENCODINGS
+ /* handle surrogate pairs */
+ if ( in->encoding == UTF16LE ||
+ in->encoding == UTF16 ||
+ in->encoding == UTF16BE )
+ {
+ if ( !TY_(IsValidUTF16FromUCS4)(c) )
+ {
+ /* invalid UTF-16 value */
+ TY_(ReportEncodingError)(in->doc, INVALID_UTF16, c, yes);
+ c = 0;
+ }
+ else if ( TY_(IsLowSurrogate)(c) )
+ {
+ uint n = c;
+ uint m = ReadCharFromStream( in );
+ if ( m == EndOfStream )
+ return EndOfStream;
+
+ c = 0;
+ if ( TY_(IsHighSurrogate)(m) )
+ {
+ n = TY_(CombineSurrogatePair)( m, n );
+ if ( TY_(IsValidCombinedChar)(n) )
+ c = n;
+ }
+ /* not a valid pair */
+ if ( 0 == c )
+ TY_(ReportEncodingError)( in->doc, INVALID_UTF16, c, yes );
+ }
+ }
+#endif
+
+ /* Do first: acts on range 128 - 255 */
+ switch ( in->encoding )
+ {
+ case MACROMAN:
+ c = TY_(DecodeMacRoman)( c );
+ break;
+ case IBM858:
+ c = DecodeIbm850( c );
+ break;
+ case LATIN0:
+ c = DecodeLatin0( c );
+ break;
+ }
+
+ /* produced e.g. as a side-effect of smart quotes in Word */
+ /* but can't happen if using MACROMAN encoding */
+ if ( 127 < c && c < 160 )
+ {
+ uint c1 = 0, replMode = DISCARDED_CHAR;
+ Bool isVendorChar = ( in->encoding == WIN1252 ||
+ in->encoding == MACROMAN );
+ Bool isWinChar = ( in->encoding == WIN1252 ||
+ TY_(ReplacementCharEncoding) == WIN1252 );
+ Bool isMacChar = ( in->encoding == MACROMAN ||
+ TY_(ReplacementCharEncoding) == MACROMAN );
+
+ /* set error position just before offending character */
+ if (in->doc->lexer)
+ {
+ in->doc->lexer->lines = in->curline;
+ in->doc->lexer->columns = in->curcol;
+ }
+
+ if ( isWinChar )
+ c1 = TY_(DecodeWin1252)( c );
+ else if ( isMacChar )
+ c1 = TY_(DecodeMacRoman)( c );
+ if ( c1 )
+ replMode = REPLACED_CHAR;
+
+ if ( c1 == 0 && isVendorChar )
+ TY_(ReportEncodingError)(in->doc, VENDOR_SPECIFIC_CHARS, c, replMode == DISCARDED_CHAR);
+ else if ( ! isVendorChar )
+ TY_(ReportEncodingError)(in->doc, INVALID_SGML_CHARS, c, replMode == DISCARDED_CHAR);
+
+ c = c1;
+ }
+
+ if ( c == 0 )
+ continue; /* illegal char is discarded */
+
+ in->curcol++;
+ break;
+ }
+
+#ifdef TIDY_STORE_ORIGINAL_TEXT
+ if (!added)
+ TY_(AddCharToOriginalText)(in, (tchar)c);
+#endif
+
+ return c;
+}
+
+static uint PopChar( StreamIn *in )
+{
+ uint c = EndOfStream;
+ if ( in->pushed )
+ {
+ assert( in->bufpos > 0 );
+ c = in->charbuf[ --in->bufpos ];
+ if ( in->bufpos == 0 )
+ in->pushed = no;
+
+ if ( c == '\n' )
+ {
+ in->curcol = 1;
+ in->curline++;
+ PopLastPos( in );
+ return c;
+ }
+ in->curcol++;
+ PopLastPos( in );
+ }
+ return c;
+}
+
+void TY_(UngetChar)( uint c, StreamIn *in )
+{
+ if (c == EndOfStream)
+ {
+ /* fprintf(stderr, "Attempt to UngetChar EOF\n"); */
+ return;
+ }
+
+ in->pushed = yes;
+
+ if (in->bufpos + 1 >= in->bufsize)
+ in->charbuf = (tchar*)TidyRealloc(in->allocator, in->charbuf, sizeof(tchar) * ++(in->bufsize));
+
+ in->charbuf[(in->bufpos)++] = c;
+
+ if (c == '\n')
+ --(in->curline);
+
+ RestoreLastPos( in );
+}
+
+
+
+/************************
+** Sink
+************************/
+
+static StreamOut* initStreamOut( TidyDocImpl* doc, int encoding, uint nl )
+{
+ StreamOut* out = (StreamOut*) TidyDocAlloc( doc, sizeof(StreamOut) );
+ TidyClearMemory( out, sizeof(StreamOut) );
+ out->encoding = encoding;
+ out->state = FSM_ASCII;
+ out->nl = nl;
+ return out;
+}
+
+StreamOut* TY_(FileOutput)( TidyDocImpl *doc, FILE* fp, int encoding, uint nl )
+{
+ StreamOut* out = initStreamOut( doc, encoding, nl );
+ TY_(initFileSink)( &out->sink, fp );
+ out->iotype = FileIO;
+ return out;
+}
+StreamOut* TY_(BufferOutput)( TidyDocImpl *doc, TidyBuffer* buf, int encoding, uint nl )
+{
+ StreamOut* out = initStreamOut( doc, encoding, nl );
+ tidyInitOutputBuffer( &out->sink, buf );
+ out->iotype = BufferIO;
+ return out;
+}
+StreamOut* TY_(UserOutput)( TidyDocImpl *doc, TidyOutputSink* sink, int encoding, uint nl )
+{
+ StreamOut* out = initStreamOut( doc, encoding, nl );
+ memcpy( &out->sink, sink, sizeof(TidyOutputSink) );
+ out->iotype = UserIO;
+ return out;
+}
+
+void TY_(WriteChar)( uint c, StreamOut* out )
+{
+ /* Translate outgoing newlines */
+ if ( LF == c )
+ {
+ if ( out->nl == TidyCRLF )
+ TY_(WriteChar)( CR, out );
+ else if ( out->nl == TidyCR )
+ c = CR;
+ }
+
+ if (out->encoding == MACROMAN)
+ {
+ EncodeMacRoman( c, out );
+ }
+ else if (out->encoding == WIN1252)
+ {
+ EncodeWin1252( c, out );
+ }
+ else if (out->encoding == IBM858)
+ {
+ EncodeIbm858( c, out );
+ }
+ else if (out->encoding == LATIN0)
+ {
+ EncodeLatin0( c, out );
+ }
+
+ else if (out->encoding == UTF8)
+ {
+ int count = 0;
+
+ TY_(EncodeCharToUTF8Bytes)( c, NULL, &out->sink, &count );
+ if (count <= 0)
+ {
+ /* TY_(ReportEncodingError)(in->lexer, INVALID_UTF8 | REPLACED_CHAR, c); */
+ /* replacement char 0xFFFD encoded as UTF-8 */
+ PutByte(0xEF, out); PutByte(0xBF, out); PutByte(0xBF, out);
+ }
+ }
+#ifndef NO_NATIVE_ISO2022_SUPPORT
+ else if (out->encoding == ISO2022)
+ {
+ if (c == 0x1b) /* ESC */
+ out->state = FSM_ESC;
+ else
+ {
+ switch (out->state)
+ {
+ case FSM_ESC:
+ if (c == '$')
+ out->state = FSM_ESCD;
+ else if (c == '(')
+ out->state = FSM_ESCP;
+ else
+ out->state = FSM_ASCII;
+ break;
+
+ case FSM_ESCD:
+ if (c == '(')
+ out->state = FSM_ESCDP;
+ else
+ out->state = FSM_NONASCII;
+ break;
+
+ case FSM_ESCDP:
+ out->state = FSM_NONASCII;
+ break;
+
+ case FSM_ESCP:
+ out->state = FSM_ASCII;
+ break;
+
+ case FSM_NONASCII:
+ c &= 0x7F;
+ break;
+
+ case FSM_ASCII:
+ break;
+ }
+ }
+
+ PutByte(c, out);
+ }
+#endif /* NO_NATIVE_ISO2022_SUPPORT */
+
+#if SUPPORT_UTF16_ENCODINGS
+ else if ( out->encoding == UTF16LE ||
+ out->encoding == UTF16BE ||
+ out->encoding == UTF16 )
+ {
+ int i, numChars = 1;
+ uint theChars[2];
+
+ if ( !TY_(IsValidUTF16FromUCS4)(c) )
+ {
+ /* invalid UTF-16 value */
+ /* TY_(ReportEncodingError)(in->lexer, INVALID_UTF16 | DISCARDED_CHAR, c); */
+ c = 0;
+ numChars = 0;
+ }
+ else if ( TY_(IsCombinedChar)(c) )
+ {
+ /* output both, unless something goes wrong */
+ numChars = 2;
+ if ( !TY_(SplitSurrogatePair)(c, &theChars[0], &theChars[1]) )
+ {
+ /* TY_(ReportEncodingError)(in->lexer, INVALID_UTF16 | DISCARDED_CHAR, c); */
+ c = 0;
+ numChars = 0;
+ }
+ }
+ else
+ {
+ /* just put the char out */
+ theChars[0] = c;
+ }
+
+ for (i = 0; i < numChars; i++)
+ {
+ c = theChars[i];
+
+ if (out->encoding == UTF16LE)
+ {
+ uint ch = c & 0xFF; PutByte(ch, out);
+ ch = (c >> 8) & 0xFF; PutByte(ch, out);
+ }
+
+ else if (out->encoding == UTF16BE || out->encoding == UTF16)
+ {
+ uint ch = (c >> 8) & 0xFF; PutByte(ch, out);
+ ch = c & 0xFF; PutByte(ch, out);
+ }
+ }
+ }
+#endif
+
+#if SUPPORT_ASIAN_ENCODINGS
+ else if (out->encoding == BIG5 || out->encoding == SHIFTJIS)
+ {
+ if (c < 128)
+ PutByte(c, out);
+ else
+ {
+ uint ch = (c >> 8) & 0xFF; PutByte(ch, out);
+ ch = c & 0xFF; PutByte(ch, out);
+ }
+ }
+#endif
+
+ else
+ PutByte( c, out );
+}
+
+
+
+/****************************
+** Miscellaneous / Helpers
+****************************/
+
+/* char encoding used when replacing illegal SGML chars,
+** regardless of specified encoding. Set at compile time
+** to either Windows or Mac.
+*/
+const int TY_(ReplacementCharEncoding) = DFLT_REPL_CHARENC;
+
+
+/* Mapping for Windows Western character set CP 1252
+** (chars 128-159/U+0080-U+009F) to Unicode.
+*/
+static const uint Win2Unicode[32] =
+{
+ 0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+ 0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x017D, 0x0000,
+ 0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+ 0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x0000, 0x017E, 0x0178
+};
+
+/* Function for conversion from Windows-1252 to Unicode */
+uint TY_(DecodeWin1252)(uint c)
+{
+ if (127 < c && c < 160)
+ c = Win2Unicode[c - 128];
+
+ return c;
+}
+
+static void EncodeWin1252( uint c, StreamOut* out )
+{
+ if (c < 128 || (c > 159 && c < 256))
+ PutByte(c, out);
+ else
+ {
+ int i;
+
+ for (i = 128; i < 160; i++)
+ if (Win2Unicode[i - 128] == c)
+ {
+ PutByte(i, out);
+ break;
+ }
+ }
+}
+
+/*
+ John Love-Jensen contributed this table for mapping MacRoman
+ character set to Unicode
+*/
+
+/* modified to only need chars 128-255/U+0080-U+00FF - Terry Teague 19 Aug 01 */
+static const uint Mac2Unicode[128] =
+{
+ /* x7F = DEL */
+
+ 0x00C4, 0x00C5, 0x00C7, 0x00C9, 0x00D1, 0x00D6, 0x00DC, 0x00E1,
+ 0x00E0, 0x00E2, 0x00E4, 0x00E3, 0x00E5, 0x00E7, 0x00E9, 0x00E8,
+
+ 0x00EA, 0x00EB, 0x00ED, 0x00EC, 0x00EE, 0x00EF, 0x00F1, 0x00F3,
+ 0x00F2, 0x00F4, 0x00F6, 0x00F5, 0x00FA, 0x00F9, 0x00FB, 0x00FC,
+
+ 0x2020, 0x00B0, 0x00A2, 0x00A3, 0x00A7, 0x2022, 0x00B6, 0x00DF,
+ 0x00AE, 0x00A9, 0x2122, 0x00B4, 0x00A8, 0x2260, 0x00C6, 0x00D8,
+
+ 0x221E, 0x00B1, 0x2264, 0x2265, 0x00A5, 0x00B5, 0x2202, 0x2211,
+ /* =BD U+2126 OHM SIGN */
+ 0x220F, 0x03C0, 0x222B, 0x00AA, 0x00BA, 0x03A9, 0x00E6, 0x00F8,
+
+ 0x00BF, 0x00A1, 0x00AC, 0x221A, 0x0192, 0x2248, 0x2206, 0x00AB,
+ 0x00BB, 0x2026, 0x00A0, 0x00C0, 0x00C3, 0x00D5, 0x0152, 0x0153,
+
+ 0x2013, 0x2014, 0x201C, 0x201D, 0x2018, 0x2019, 0x00F7, 0x25CA,
+ /* =DB U+00A4 CURRENCY SIGN */
+ 0x00FF, 0x0178, 0x2044, 0x20AC, 0x2039, 0x203A, 0xFB01, 0xFB02,
+
+ 0x2021, 0x00B7, 0x201A, 0x201E, 0x2030, 0x00C2, 0x00CA, 0x00C1,
+ 0x00CB, 0x00C8, 0x00CD, 0x00CE, 0x00CF, 0x00CC, 0x00D3, 0x00D4,
+ /* xF0 = Apple Logo */
+ /* =F0 U+2665 BLACK HEART SUIT */
+ 0xF8FF, 0x00D2, 0x00DA, 0x00DB, 0x00D9, 0x0131, 0x02C6, 0x02DC,
+ 0x00AF, 0x02D8, 0x02D9, 0x02DA, 0x00B8, 0x02DD, 0x02DB, 0x02C7
+};
+
+/* Function to convert from MacRoman to Unicode */
+uint TY_(DecodeMacRoman)(uint c)
+{
+ if (127 < c)
+ c = Mac2Unicode[c - 128];
+ return c;
+}
+
+static void EncodeMacRoman( uint c, StreamOut* out )
+{
+ if (c < 128)
+ PutByte(c, out);
+ else
+ {
+ /* For mac users, map Unicode back to MacRoman. */
+ int i;
+ for (i = 128; i < 256; i++)
+ {
+ if (Mac2Unicode[i - 128] == c)
+ {
+ PutByte(i, out);
+ break;
+ }
+ }
+ }
+}
+
+/* Mapping for OS/2 Western character set CP 850
+** (chars 128-255) to Unicode.
+*/
+static const uint IBM2Unicode[128] =
+{
+ 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
+ 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
+ 0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
+ 0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x0192,
+ 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
+ 0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
+ 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0,
+ 0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510,
+ 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3,
+ 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x00a4,
+ 0x00f0, 0x00d0, 0x00ca, 0x00cb, 0x00c8, 0x20AC, 0x00cd, 0x00ce,
+ 0x00cf, 0x2518, 0x250c, 0x2588, 0x2584, 0x00a6, 0x00cc, 0x2580,
+ 0x00d3, 0x00df, 0x00d4, 0x00d2, 0x00f5, 0x00d5, 0x00b5, 0x00fe,
+ 0x00de, 0x00da, 0x00db, 0x00d9, 0x00fd, 0x00dd, 0x00af, 0x00b4,
+ 0x00ad, 0x00b1, 0x2017, 0x00be, 0x00b6, 0x00a7, 0x00f7, 0x00b8,
+ 0x00b0, 0x00a8, 0x00b7, 0x00b9, 0x00b3, 0x00b2, 0x25a0, 0x00a0
+};
+
+/* Function for conversion from OS/2-850 to Unicode */
+static uint DecodeIbm850(uint c)
+{
+ if (127 < c && c < 256)
+ c = IBM2Unicode[c - 128];
+
+ return c;
+}
+
+/* For OS/2,Java users, map Unicode back to IBM858 (IBM850+Euro). */
+static void EncodeIbm858( uint c, StreamOut* out )
+{
+ if (c < 128)
+ PutByte(c, out);
+ else
+ {
+ int i;
+ for (i = 128; i < 256; i++)
+ {
+ if (IBM2Unicode[i - 128] == c)
+ {
+ PutByte(i, out);
+ break;
+ }
+ }
+ }
+}
+
+
+/* Convert from Latin0 (aka Latin9, ISO-8859-15) to Unicode */
+static uint DecodeLatin0(uint c)
+{
+ if (159 < c && c < 191)
+ {
+ switch (c)
+ {
+ case 0xA4: c = 0x20AC; break;
+ case 0xA6: c = 0x0160; break;
+ case 0xA8: c = 0x0161; break;
+ case 0xB4: c = 0x017D; break;
+ case 0xB8: c = 0x017E; break;
+ case 0xBC: c = 0x0152; break;
+ case 0xBD: c = 0x0153; break;
+ case 0xBE: c = 0x0178; break;
+ }
+ }
+ return c;
+}
+
+/* Map Unicode back to ISO-8859-15. */
+static void EncodeLatin0( uint c, StreamOut* out )
+{
+ switch (c)
+ {
+ case 0x20AC: c = 0xA4; break;
+ case 0x0160: c = 0xA6; break;
+ case 0x0161: c = 0xA8; break;
+ case 0x017D: c = 0xB4; break;
+ case 0x017E: c = 0xB8; break;
+ case 0x0152: c = 0xBC; break;
+ case 0x0153: c = 0xBD; break;
+ case 0x0178: c = 0xBE; break;
+ }
+ PutByte(c, out);
+}
+
+/*
+ Table to map symbol font characters to Unicode; undefined
+ characters are mapped to 0x0000 and characters without any
+ Unicode equivalent are mapped to '?'. Is this appropriate?
+*/
+
+static const uint Symbol2Unicode[] =
+{
+ 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
+ 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F,
+
+ 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
+ 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F,
+
+ 0x0020, 0x0021, 0x2200, 0x0023, 0x2203, 0x0025, 0x0026, 0x220D,
+ 0x0028, 0x0029, 0x2217, 0x002B, 0x002C, 0x2212, 0x002E, 0x002F,
+
+ 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
+ 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F,
+
+ 0x2245, 0x0391, 0x0392, 0x03A7, 0x0394, 0x0395, 0x03A6, 0x0393,
+ 0x0397, 0x0399, 0x03D1, 0x039A, 0x039B, 0x039C, 0x039D, 0x039F,
+
+ 0x03A0, 0x0398, 0x03A1, 0x03A3, 0x03A4, 0x03A5, 0x03C2, 0x03A9,
+ 0x039E, 0x03A8, 0x0396, 0x005B, 0x2234, 0x005D, 0x22A5, 0x005F,
+
+ 0x00AF, 0x03B1, 0x03B2, 0x03C7, 0x03B4, 0x03B5, 0x03C6, 0x03B3,
+ 0x03B7, 0x03B9, 0x03D5, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BF,
+
+ 0x03C0, 0x03B8, 0x03C1, 0x03C3, 0x03C4, 0x03C5, 0x03D6, 0x03C9,
+ 0x03BE, 0x03C8, 0x03B6, 0x007B, 0x007C, 0x007D, 0x223C, 0x003F,
+
+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+
+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+
+ 0x00A0, 0x03D2, 0x2032, 0x2264, 0x2044, 0x221E, 0x0192, 0x2663,
+ 0x2666, 0x2665, 0x2660, 0x2194, 0x2190, 0x2191, 0x2192, 0x2193,
+
+ 0x00B0, 0x00B1, 0x2033, 0x2265, 0x00D7, 0x221D, 0x2202, 0x00B7,
+ 0x00F7, 0x2260, 0x2261, 0x2248, 0x2026, 0x003F, 0x003F, 0x21B5,
+
+ 0x2135, 0x2111, 0x211C, 0x2118, 0x2297, 0x2295, 0x2205, 0x2229,
+ 0x222A, 0x2283, 0x2287, 0x2284, 0x2282, 0x2286, 0x2208, 0x2209,
+
+ 0x2220, 0x2207, 0x00AE, 0x00A9, 0x2122, 0x220F, 0x221A, 0x22C5,
+ 0x00AC, 0x2227, 0x2228, 0x21D4, 0x21D0, 0x21D1, 0x21D2, 0x21D3,
+
+ 0x25CA, 0x2329, 0x00AE, 0x00A9, 0x2122, 0x2211, 0x003F, 0x003F,
+ 0x003F, 0x003F, 0x003F, 0x003F, 0x003F, 0x003F, 0x003F, 0x003F,
+
+ 0x20AC, 0x232A, 0x222B, 0x2320, 0x003F, 0x2321, 0x003F, 0x003F,
+ 0x003F, 0x003F, 0x003F, 0x003F, 0x003F, 0x003F, 0x003F, 0x003F
+};
+
+#if 0
+/* Function to convert from Symbol Font chars to Unicode */
+uint DecodeSymbolFont(uint c)
+{
+ if (c > 255)
+ return c;
+
+ /* todo: add some error message */
+
+ return Symbol2Unicode[c];
+}
+#endif
+
+
+/* Facilitates user defined source by providing
+** an entry point to marshal pointers-to-functions.
+** Needed by .NET and possibly other language bindings.
+*/
+Bool TIDY_CALL tidyInitSource( TidyInputSource* source,
+ void* srcData,
+ TidyGetByteFunc gbFunc,
+ TidyUngetByteFunc ugbFunc,
+ TidyEOFFunc endFunc )
+{
+ Bool status = ( source && srcData && gbFunc && ugbFunc && endFunc );
+
+ if ( status )
+ {
+ source->sourceData = srcData;
+ source->getByte = gbFunc;
+ source->ungetByte = ugbFunc;
+ source->eof = endFunc;
+ }
+
+ return status;
+}
+
+Bool TIDY_CALL tidyInitSink( TidyOutputSink* sink,
+ void* snkData,
+ TidyPutByteFunc pbFunc )
+{
+ Bool status = ( sink && snkData && pbFunc );
+ if ( status )
+ {
+ sink->sinkData = snkData;
+ sink->putByte = pbFunc;
+ }
+ return status;
+}
+
+/* GetByte must return a byte value in a signed
+** integer so that a negative value can signal EOF
+** without interfering w/ 0-255 legitimate byte values.
+*/
+uint TIDY_CALL tidyGetByte( TidyInputSource* source )
+{
+ int bv = source->getByte( source->sourceData );
+ return (uint) bv;
+}
+Bool TIDY_CALL tidyIsEOF( TidyInputSource* source )
+{
+ return source->eof( source->sourceData );
+}
+void TIDY_CALL tidyUngetByte( TidyInputSource* source, uint ch )
+{
+ source->ungetByte( source->sourceData, (byte) ch );
+}
+void TIDY_CALL tidyPutByte( TidyOutputSink* sink, uint ch )
+{
+ sink->putByte( sink->sinkData, (byte) ch );
+}
+
+static uint ReadByte( StreamIn* in )
+{
+ return tidyGetByte( &in->source );
+}
+Bool TY_(IsEOF)( StreamIn* in )
+{
+ return tidyIsEOF( &in->source );
+}
+static void UngetByte( StreamIn* in, uint byteValue )
+{
+ tidyUngetByte( &in->source, byteValue );
+}
+static void PutByte( uint byteValue, StreamOut* out )
+{
+ tidyPutByte( &out->sink, byteValue );
+}
+
+#if 0
+static void UngetRawBytesToStream( StreamIn *in, byte* buf, int *count )
+{
+ int i;
+
+ for (i = 0; i < *count; i++)
+ {
+ /* should never get here; testing for 0xFF, a valid char, is not a good idea */
+ if ( in && TY_(IsEOF)(in) )
+ {
+ /* fprintf(stderr,"Attempt to unget EOF in UngetRawBytesToStream\n"); */
+ *count = -i;
+ return;
+ }
+
+ in->source.ungetByte( in->source.sourceData, buf[i] );
+ }
+}
+
+/*
+ Read raw bytes from stream, return <= 0 if EOF; or if
+ "unget" is true, Unget the bytes to re-synchronize the input stream
+ Normally UTF-8 successor bytes are read using this routine.
+*/
+static void ReadRawBytesFromStream( StreamIn *in, byte* buf, int *count )
+{
+ int ix;
+ for ( ix=0; ix < *count; ++ix )
+ {
+ if ( in->rawPushed )
+ {
+ buf[ix] = in->rawBytebuf[ --in->rawBufpos ];
+ if ( in->rawBufpos == 0 )
+ in->rawPushed = no;
+ }
+ else
+ {
+ if ( in->source.eof(in->source.sourceData) )
+ {
+ *count = -i;
+ break;
+ }
+ buf[ix] = in->source.getByte( in->source.sourceData );
+ }
+ }
+}
+#endif /* 0 */
+
+/* read char from stream */
+static uint ReadCharFromStream( StreamIn* in )
+{
+ uint c, n;
+#ifdef TIDY_WIN32_MLANG_SUPPORT
+ uint bytesRead = 0;
+#endif
+
+ if ( TY_(IsEOF)(in) )
+ return EndOfStream;
+
+ c = ReadByte( in );
+
+ if (c == EndOfStream)
+ return c;
+
+#ifndef NO_NATIVE_ISO2022_SUPPORT
+ /*
+ A document in ISO-2022 based encoding uses some ESC sequences
+ called "designator" to switch character sets. The designators
+ defined and used in ISO-2022-JP are:
+
+ "ESC" + "(" + ? for ISO646 variants
+
+ "ESC" + "$" + ? and
+ "ESC" + "$" + "(" + ? for multibyte character sets
+
+ Where ? stands for a single character used to indicate the
+ character set for multibyte characters.
+
+ Tidy handles this by preserving the escape sequence and
+ setting the top bit of each byte for non-ascii chars. This
+ bit is then cleared on output. The input stream keeps track
+ of the state to determine when to set/clear the bit.
+ */
+
+ if (in->encoding == ISO2022)
+ {
+ if (c == 0x1b) /* ESC */
+ {
+ in->state = FSM_ESC;
+ return c;
+ }
+
+ switch (in->state)
+ {
+ case FSM_ESC:
+ if (c == '$')
+ in->state = FSM_ESCD;
+ else if (c == '(')
+ in->state = FSM_ESCP;
+ else
+ in->state = FSM_ASCII;
+ break;
+
+ case FSM_ESCD:
+ if (c == '(')
+ in->state = FSM_ESCDP;
+ else
+ in->state = FSM_NONASCII;
+ break;
+
+ case FSM_ESCDP:
+ in->state = FSM_NONASCII;
+ break;
+
+ case FSM_ESCP:
+ in->state = FSM_ASCII;
+ break;
+
+ case FSM_NONASCII:
+ c |= 0x80;
+ break;
+
+ case FSM_ASCII:
+ break;
+ }
+
+ return c;
+ }
+#endif /* #ifndef NO_NATIVE_ISO2022_SUPPORT */
+
+#if SUPPORT_UTF16_ENCODINGS
+ if ( in->encoding == UTF16LE )
+ {
+ uint c1 = ReadByte( in );
+ if ( EndOfStream == c1 )
+ return EndOfStream;
+ n = (c1 << 8) + c;
+ return n;
+ }
+
+ if ((in->encoding == UTF16) || (in->encoding == UTF16BE)) /* UTF-16 is big-endian by default */
+ {
+ uint c1 = ReadByte( in );
+ if ( EndOfStream == c1 )
+ return EndOfStream;
+ n = (c << 8) + c1;
+ return n;
+ }
+#endif
+
+ if ( in->encoding == UTF8 )
+ {
+ /* deal with UTF-8 encoded char */
+
+ int err, count = 0;
+
+ /* first byte "c" is passed in separately */
+ err = TY_(DecodeUTF8BytesToChar)( &n, c, NULL, &in->source, &count );
+ if (!err && (n == (uint)EndOfStream) && (count == 1)) /* EOF */
+ return EndOfStream;
+ else if (err)
+ {
+ /* set error position just before offending character */
+ in->doc->lexer->lines = in->curline;
+ in->doc->lexer->columns = in->curcol;
+
+ TY_(ReportEncodingError)(in->doc, INVALID_UTF8, n, no);
+ n = 0xFFFD; /* replacement char */
+ }
+
+ return n;
+ }
+
+#if SUPPORT_ASIAN_ENCODINGS
+ /*
+ This section is suitable for any "multibyte" variable-width
+ character encoding in which a one-byte code is less than
+ 128, and the first byte of a two-byte code is greater or
+ equal to 128. Note that Big5 and ShiftJIS fit into this
+ kind, even though their second byte may be less than 128
+ */
+ if ((in->encoding == BIG5) || (in->encoding == SHIFTJIS))
+ {
+ if (c < 128)
+ return c;
+ else if ((in->encoding == SHIFTJIS) && (c >= 0xa1 && c <= 0xdf)) /* 461643 - fix suggested by Rick Cameron 14 Sep 01 */
+ {
+ /*
+ Rick Cameron pointed out that for Shift_JIS, the values from
+ 0xa1 through 0xdf represent singe-byte characters
+ (U+FF61 to U+FF9F - half-shift Katakana)
+ */
+ return c;
+ }
+ else
+ {
+ uint c1 = ReadByte( in );
+ if ( EndOfStream == c1 )
+ return EndOfStream;
+ n = (c << 8) + c1;
+ return n;
+ }
+ }
+#endif
+
+#ifdef TIDY_WIN32_MLANG_SUPPORT
+ else if (in->encoding > WIN32MLANG)
+ {
+ assert( in->mlang != NULL );
+ return TY_(Win32MLangGetChar)((byte)c, in, &bytesRead);
+ }
+#endif
+
+ else
+ n = c;
+
+ return n;
+}
+
+/* Output a Byte Order Mark if required */
+void TY_(outBOM)( StreamOut *out )
+{
+ if ( out->encoding == UTF8
+#if SUPPORT_UTF16_ENCODINGS
+ || out->encoding == UTF16LE
+ || out->encoding == UTF16BE
+ || out->encoding == UTF16
+#endif
+ )
+ {
+ /* this will take care of encoding the BOM correctly */
+ TY_(WriteChar)( UNICODE_BOM, out );
+ }
+}
+
+/* this is in intermediate fix for various problems in the */
+/* long term code and data in charsets.c should be used */
+static struct _enc2iana
+{
+ uint id;
+ ctmbstr name;
+ ctmbstr tidyOptName;
+} const enc2iana[] =
+{
+ { ASCII, "us-ascii", "ascii" },
+ { LATIN0, "iso-8859-15", "latin0" },
+ { LATIN1, "iso-8859-1", "latin1" },
+ { UTF8, "utf-8", "utf8" },
+ { MACROMAN, "macintosh", "mac" },
+ { WIN1252, "windows-1252", "win1252" },
+ { IBM858, "ibm00858", "ibm858" },
+#if SUPPORT_UTF16_ENCODINGS
+ { UTF16LE, "utf-16", "utf16le" },
+ { UTF16BE, "utf-16", "utf16be" },
+ { UTF16, "utf-16", "utf16" },
+#endif
+#if SUPPORT_ASIAN_ENCODINGS
+ { BIG5, "big5", "big5" },
+ { SHIFTJIS, "shift_jis", "shiftjis"},
+#endif
+#ifndef NO_NATIVE_ISO2022_SUPPORT
+ { ISO2022, NULL, "iso2022" },
+#endif
+ { RAW, NULL, "raw" }
+};
+
+ctmbstr TY_(GetEncodingNameFromTidyId)(uint id)
+{
+ uint i;
+
+ for (i = 0; enc2iana[i].name; ++i)
+ if (enc2iana[i].id == id)
+ return enc2iana[i].name;
+
+ return NULL;
+}
+
+ctmbstr TY_(GetEncodingOptNameFromTidyId)(uint id)
+{
+ uint i;
+
+ for (i = 0; i < sizeof(enc2iana)/sizeof(enc2iana[0]); ++i)
+ if (enc2iana[i].id == id)
+ return enc2iana[i].tidyOptName;
+
+ return NULL;
+}
+
+int TY_(GetCharEncodingFromOptName)( ctmbstr charenc )
+{
+ uint i;
+
+ for (i = 0; i < sizeof(enc2iana)/sizeof(enc2iana[0]); ++i)
+ if (TY_(tmbstrcasecmp)(charenc, enc2iana[i].tidyOptName) == 0 )
+ return enc2iana[i].id;
+
+ return -1;
+}
+
+/*
+ * local variables:
+ * mode: c
+ * indent-tabs-mode: nil
+ * c-basic-offset: 4
+ * eval: (c-set-offset 'substatement-open 0)
+ * end:
+ */
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