Add w3c html tidy

third_party/tidy/tidybuffio.h

@@ -0,0 +1,126 @@
+#ifndef __TIDY_BUFFIO_H__
+#define __TIDY_BUFFIO_H__
+/* clang-format off */
+
+/**************************************************************************//**
+ * @file
+ * Treat buffer as a stream that Tidy can use for I/O operations. It offers
+ * the ability for the buffer to grow as bytes are added, and keeps track
+ * of current read and write points.
+ *
+ * @author
+ *     HTACG, et al (consult git log)
+ *
+ * @copyright
+ *     Copyright (c) 1998-2017 World Wide Web Consortium (Massachusetts
+ *     Institute of Technology, European Research Consortium for Informatics
+ *     and Mathematics, Keio University).
+ * @copyright
+ *     See tidy.h for license.
+ *
+ * @date
+ *     Consult git log.
+ ******************************************************************************/
+
+#include "third_party/tidy/tidyplatform.h"
+#include "third_party/tidy/tidy.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** A TidyBuffer is chunk of memory that can be used for multiple I/O purposes
+ ** within Tidy.
+ ** @ingroup IO
+ */
+TIDY_STRUCT
+struct _TidyBuffer
+{
+    TidyAllocator* allocator;  /**< Memory allocator */
+    byte* bp;                  /**< Pointer to bytes */
+    uint  size;                /**< Number of bytes currently in use */
+    uint  allocated;           /**< Number of bytes allocated */
+    uint  next;                /**< Offset of current input position */
+};
+
+/** Initialize data structure using the default allocator */
+void tidyBufInit( TidyBuffer* buf );
+
+/** Initialize data structure using the given custom allocator */
+void tidyBufInitWithAllocator( TidyBuffer* buf, TidyAllocator* allocator );
+
+/** Free current buffer, allocate given amount, reset input pointer,
+    use the default allocator */
+void tidyBufAlloc( TidyBuffer* buf, uint allocSize );
+
+/** Free current buffer, allocate given amount, reset input pointer,
+    use the given custom allocator */
+void tidyBufAllocWithAllocator( TidyBuffer* buf,
+                                                      TidyAllocator* allocator,
+                                                      uint allocSize );
+
+/** Expand buffer to given size.
+**  Chunk size is minimum growth. Pass 0 for default of 256 bytes.
+*/
+void tidyBufCheckAlloc( TidyBuffer* buf,
+                                              uint allocSize, uint chunkSize );
+
+/** Free current contents and zero out */
+void tidyBufFree( TidyBuffer* buf );
+
+/** Set buffer bytes to 0 */
+void tidyBufClear( TidyBuffer* buf );
+
+/** Attach to existing buffer */
+void tidyBufAttach( TidyBuffer* buf, byte* bp, uint size );
+
+/** Detach from buffer.  Caller must free. */
+void tidyBufDetach( TidyBuffer* buf );
+
+
+/** Append bytes to buffer.  Expand if necessary. */
+void tidyBufAppend( TidyBuffer* buf, void* vp, uint size );
+
+/** Append one byte to buffer.  Expand if necessary. */
+void tidyBufPutByte( TidyBuffer* buf, byte bv );
+
+/** Get byte from end of buffer */
+int  tidyBufPopByte( TidyBuffer* buf );
+
+
+/** Get byte from front of buffer.  Increment input offset. */
+int  tidyBufGetByte( TidyBuffer* buf );
+
+/** At end of buffer? */
+Bool tidyBufEndOfInput( TidyBuffer* buf );
+
+/** Put a byte back into the buffer.  Decrement input offset. */
+void tidyBufUngetByte( TidyBuffer* buf, byte bv );
+
+
+/**************
+   TIDY
+**************/
+
+/* Forward declarations
+*/
+
+/** Initialize a buffer input source */
+void tidyInitInputBuffer( TidyInputSource* inp, TidyBuffer* buf );
+
+/** Initialize a buffer output sink */
+void tidyInitOutputBuffer( TidyOutputSink* outp, TidyBuffer* buf );
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* __TIDY_BUFFIO_H__ */
+
+/*
+ * local variables:
+ * mode: c
+ * indent-tabs-mode: nil
+ * c-basic-offset: 4
+ * eval: (c-set-offset 'substatement-open 0)
+ * end:
+ */