175 lines
4.2 KiB
C
175 lines
4.2 KiB
C
#ifndef __STREAMIO_H__
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#define __STREAMIO_H__
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/* streamio.h -- handles character stream I/O
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(c) 1998-2007 (W3C) MIT, ERCIM, Keio University
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See tidy.h for the copyright notice.
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Wrapper around Tidy input source and output sink
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that calls appropriate interfaces, and applies
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necessary char encoding transformations: to/from
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ISO-10646 and/or UTF-8.
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*/
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#include "forward.h"
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#include "tidybuffio.h"
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#include "fileio.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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typedef enum
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{
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FileIO,
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BufferIO,
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UserIO
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} IOType;
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/* states for ISO 2022
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A document in ISO-2022 based encoding uses some ESC sequences called
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"designator" to switch character sets. The designators defined and
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used in ISO-2022-JP are:
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"ESC" + "(" + ? for ISO646 variants
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"ESC" + "$" + ? and
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"ESC" + "$" + "(" + ? for multibyte character sets
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*/
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typedef enum
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{
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FSM_ASCII,
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FSM_ESC,
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FSM_ESCD,
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FSM_ESCDP,
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FSM_ESCP,
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FSM_NONASCII
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} ISO2022State;
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/************************
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** Source
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************************/
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enum
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{
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CHARBUF_SIZE=5,
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LASTPOS_SIZE=64
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};
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/* non-raw input is cleaned up*/
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struct _StreamIn
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{
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ISO2022State state; /* FSM for ISO2022 */
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Bool pushed;
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TidyAllocator *allocator;
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tchar* charbuf;
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uint bufpos;
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uint bufsize;
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int tabs;
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int lastcols[LASTPOS_SIZE];
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unsigned short curlastpos; /* current last position in lastcols */
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unsigned short firstlastpos; /* first valid last position in lastcols */
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int curcol;
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int curline;
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int encoding;
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IOType iotype;
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TidyInputSource source;
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/* Pointer back to document for error reporting */
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TidyDocImpl* doc;
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};
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TY_PRIVATE StreamIn* TY_(initStreamIn)( TidyDocImpl* doc, int encoding );
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TY_PRIVATE void TY_(freeStreamIn)(StreamIn* in);
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TY_PRIVATE StreamIn* TY_(FileInput)( TidyDocImpl* doc, FILE* fp, int encoding );
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TY_PRIVATE StreamIn* TY_(BufferInput)( TidyDocImpl* doc, TidyBuffer* content, int encoding );
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TY_PRIVATE StreamIn* TY_(UserInput)( TidyDocImpl* doc, TidyInputSource* source, int encoding );
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TY_PRIVATE int TY_(ReadBOMEncoding)(StreamIn *in);
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TY_PRIVATE uint TY_(ReadChar)( StreamIn* in );
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TY_PRIVATE void TY_(UngetChar)( uint c, StreamIn* in );
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TY_PRIVATE Bool TY_(IsEOF)( StreamIn* in );
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/************************
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** Sink
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************************/
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struct _StreamOut
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{
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int encoding;
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ISO2022State state; /* for ISO 2022 */
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uint nl;
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IOType iotype;
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TidyOutputSink sink;
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};
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TY_PRIVATE StreamOut* TY_(FileOutput)( TidyDocImpl *doc, FILE* fp, int encoding, uint newln );
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TY_PRIVATE StreamOut* TY_(BufferOutput)( TidyDocImpl *doc, TidyBuffer* buf, int encoding, uint newln );
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TY_PRIVATE StreamOut* TY_(UserOutput)( TidyDocImpl *doc, TidyOutputSink* sink, int encoding, uint newln );
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TY_PRIVATE StreamOut* TY_(StdErrOutput)(void);
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/* StreamOut* StdOutOutput(void); */
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TY_PRIVATE void TY_(ReleaseStreamOut)( TidyDocImpl *doc, StreamOut* out );
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TY_PRIVATE void TY_(WriteChar)( uint c, StreamOut* out );
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TY_PRIVATE void TY_(outBOM)( StreamOut *out );
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TY_PRIVATE ctmbstr TY_(GetEncodingNameFromTidyId)(uint id);
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TY_PRIVATE ctmbstr TY_(GetEncodingOptNameFromTidyId)(uint id);
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TY_PRIVATE int TY_(GetCharEncodingFromOptName)(ctmbstr charenc);
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/************************
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** Misc
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************************/
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/* character encodings
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*/
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#define RAW 0
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#define ASCII 1
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#define LATIN0 2
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#define LATIN1 3
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#define UTF8 4
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#define ISO2022 5
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#define MACROMAN 6
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#define WIN1252 7
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#define IBM858 8
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#define UTF16LE 9
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#define UTF16BE 10
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#define UTF16 11
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#define BIG5 12
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#define SHIFTJIS 13
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/* Function for conversion from Windows-1252 to Unicode */
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TY_PRIVATE uint TY_(DecodeWin1252)(uint c);
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/* Function to convert from MacRoman to Unicode */
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TY_PRIVATE uint TY_(DecodeMacRoman)(uint c);
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#ifdef __cplusplus
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}
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#endif
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/* Use numeric constants as opposed to escape chars (\r, \n)
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** to avoid conflict Mac compilers that may re-define these.
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*/
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#define CR 0xD
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#define LF 0xA
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#if defined(MAC_OS_CLASSIC)
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# define DEFAULT_NL_CONFIG TidyCR
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#elif defined(_WIN32) || defined(OS2_OS)
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# define DEFAULT_NL_CONFIG TidyCRLF
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#else
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# define DEFAULT_NL_CONFIG TidyLF
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#endif
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#endif /* __STREAMIO_H__ */
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