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Diffstat (limited to '')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/BaseTools/Source/C/VfrCompile/Pccts/h/BufFileInput.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/BaseTools/Source/C/VfrCompile/Pccts/h/BufFileInput.h b/src/VBox/Devices/EFI/Firmware/BaseTools/Source/C/VfrCompile/Pccts/h/BufFileInput.h new file mode 100644 index 00000000..d53340e3 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/BaseTools/Source/C/VfrCompile/Pccts/h/BufFileInput.h @@ -0,0 +1,53 @@ +// FILE: BufFileInput.h +// AUTHOR: Alexey Demakov (AVD) demakov@kazbek.ispras.ru +// CREATION: 26-JAN-1998 +// DESCRIPTION: File Input Stream with lookahead for Scanner +// Tested under Win32 with ANTLR 1.33 MR10 and MSVC 5.0 + +// Change History: +// +// 28-May-1998 Add virtual destructor to release buffer +// Manfred Kogler (km@cast.uni-linz.ac.at) +// (1.33MR14) + +#ifndef BufFileInput_h +#define BufFileInput_h + +#include "pcctscfg.h" + +#include "pccts_stdio.h" + +PCCTS_NAMESPACE_STD + +#include "DLexerBase.h" + +class DllExportPCCTS BufFileInput : public DLGInputStream +{ +public: + // constructor + // f - input stream + // buf_size - size of buffer (maximal length for string in is_in) + + BufFileInput(FILE *f, int buf_size = 8 ); + + virtual ~BufFileInput(); + + // gets next char from stream + + virtual int nextChar( void ); + + // looks in stream and compares next l characters with s + // returns the result of comparision + + int lookahead( char* s ); + +private: + FILE *input; // input stream; + int* buf; // buffer + int size; // size of buffer + int start; // position of the first symbol in buffer + int len; // count of characters in buffers +}; + +#endif +// end of file BufFileInput.h |