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buffio.h Go to the documentation of this file. #ifndef __BUFFIO_H__ #define __BUFFIO_H__ /** @file buffio.h - Treat buffer as an I/O stream. (c) 1998-2002 (W3C) MIT, INRIA, Keio University See tidy.h for the copyright notice. CVS Info : $Author: creitzel $ $Date: 2002/12/13 23:29:41 $ $Revision: 1.1.2.1 $ Requires buffer to automatically grow as bytes are added. Must keep track of current read and write points. */ #include "platform.h" #include "tidy.h" #ifdef __cplusplus extern "C" { #endif /** TidyBuffer - A chunk of memory */ TIDY_STRUCT struct _TidyBuffer { byte* bp; /**< Pointer to bytes */ uint size; /**< # bytes currently in use */ uint allocated; /**< # bytes allocated */ uint next; /**< Offset of current input position */ }; /** Zero out data structure */ TIDY_EXPORT void tidyBufInit( TidyBuffer* buf ); /** Free current buffer, allocate given amount, reset input pointer */ TIDY_EXPORT void tidyBufAlloc( TidyBuffer* buf, uint allocSize ); /** Expand buffer to given size. ** Chunk size is minimum growth. Pass 0 for default of 256 bytes. */ TIDY_EXPORT void tidyBufCheckAlloc( TidyBuffer* buf, uint allocSize, uint chunkSize ); /** Free current contents and zero out */ TIDY_EXPORT void tidyBufFree( TidyBuffer* buf ); /** Set buffer bytes to 0 */ TIDY_EXPORT void tidyBufClear( TidyBuffer* buf ); /** Attach to existing buffer */ TIDY_EXPORT void tidyBufAttach( TidyBuffer* buf, void* bp, uint size ); /** Detach from buffer. Caller must free. */ TIDY_EXPORT void tidyBufDetach( TidyBuffer* buf ); /** Append bytes to buffer. Expand if necessary. */ TIDY_EXPORT void tidyBufAppend( TidyBuffer* buf, void* vp, uint size ); /** Append one byte to buffer. Expand if necessary. */ TIDY_EXPORT void tidyBufPutByte( TidyBuffer* buf, byte bv ); /** Get byte from end of buffer */ TIDY_EXPORT int tidyBufPopByte( TidyBuffer* buf ); /** Get byte from front of buffer. Increment input offset. */ TIDY_EXPORT int tidyBufGetByte( TidyBuffer* buf ); /** At end of buffer? */ TIDY_EXPORT Bool tidyBufEndOfInput( TidyBuffer* buf ); /** Put a byte back into the buffer. Decrement input offset. */ TIDY_EXPORT void tidyBufUngetByte( TidyBuffer* buf, byte bv ); /************** TIDY **************/ /* Forward declarations */ /** Initialize a buffer input source */ TIDY_EXPORT void initInputBuffer( TidyInputSource* inp, TidyBuffer* buf ); /** Initialize a buffer output sink */ TIDY_EXPORT void initOutputBuffer( TidyOutputSink* outp, TidyBuffer* buf ); #ifdef __cplusplus } #endif #endif /* __BUFFIO_H__ */