Add w3c html tidy

third_party/tidy/streamio.h

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