Add w3c html tidy

third_party/tidy/fileio.c

@@ -0,0 +1,115 @@
+/* clang-format off */
+/* fileio.c -- does standard I/O
+
+  (c) 1998-2007 (W3C) MIT, ERCIM, Keio University
+  See tidy.h for the copyright notice.
+
+  Default implementations of Tidy input sources
+  and output sinks based on standard C FILE*.
+
+*/
+
+
+#include "third_party/tidy/forward.h"
+#include "third_party/tidy/fileio.h"
+#include "third_party/tidy/tidy.h"
+#include "third_party/tidy/sprtf.h"
+
+typedef struct _fp_input_source
+{
+    FILE*        fp;
+    TidyBuffer   unget;
+} FileSource;
+
+static int filesrc_getByte( void* sourceData )
+{
+  FileSource* fin = (FileSource*) sourceData;
+  int bv;
+  if ( fin->unget.size > 0 )
+    bv = tidyBufPopByte( &fin->unget );
+  else
+    bv = fgetc( fin->fp );
+  return bv;
+}
+
+static Bool filesrc_eof( void* sourceData )
+{
+  FileSource* fin = (FileSource*) sourceData;
+  Bool isEOF = ( fin->unget.size == 0 );
+  if ( isEOF )
+    isEOF = feof( fin->fp ) != 0;
+  return isEOF;
+}
+
+static void filesrc_ungetByte( void* sourceData, byte bv )
+{
+  FileSource* fin = (FileSource*) sourceData;
+  tidyBufPutByte( &fin->unget, bv );
+}
+
+#if SUPPORT_POSIX_MAPPED_FILES
+#  define initFileSource initStdIOFileSource
+#  define freeFileSource freeStdIOFileSource
+#endif
+int TY_(initFileSource)( TidyAllocator *allocator, TidyInputSource* inp, FILE* fp )
+{
+  FileSource* fin = NULL;
+
+  fin = (FileSource*) TidyAlloc( allocator, sizeof(FileSource) );
+  if ( !fin )
+      return -1;
+  TidyClearMemory( fin, sizeof(FileSource) );
+  fin->unget.allocator = allocator;
+  fin->fp = fp;
+
+  inp->getByte    = filesrc_getByte;
+  inp->eof        = filesrc_eof;
+  inp->ungetByte  = filesrc_ungetByte;
+  inp->sourceData = fin;
+
+  return 0;
+}
+
+void TY_(freeFileSource)( TidyInputSource* inp, Bool closeIt )
+{
+    FileSource* fin = (FileSource*) inp->sourceData;
+    if ( closeIt && fin && fin->fp )
+      fclose( fin->fp );
+    tidyBufFree( &fin->unget );
+    if (fin)
+        TidyFree( fin->unget.allocator, fin );
+}
+
+void TY_(filesink_putByte)( void* sinkData, byte bv )
+{
+  FILE* fout = (FILE*) sinkData;
+  fputc( bv, fout );
+#if defined(ENABLE_DEBUG_LOG)
+  if (fileno(fout) != 2)
+  {
+      if (bv != 0x0d)
+      {
+          /*\
+           * avoid duplicate newline - SPRTF will translate an 0x0d to CRLF,
+           *  and do the same with the following 0x0a
+          \*/
+          SPRTF("%c",bv);
+      }
+  }
+#endif
+}
+
+void TY_(initFileSink)( TidyOutputSink* outp, FILE* fp )
+{
+  outp->putByte  = TY_(filesink_putByte);
+  outp->sinkData = fp;
+}
+
+/*
+ * local variables:
+ * mode: c
+ * indent-tabs-mode: nil
+ * c-basic-offset: 4
+ * eval: (c-set-offset 'substatement-open 0)
+ * end:
+ */