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109 lines
4.5 KiB
C
109 lines
4.5 KiB
C
/*****************************************************************************/
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/* */
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/* lineinfo.h */
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/* */
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/* Source file line info structure */
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/* */
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/* */
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/* */
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/* (C) 2001 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef LINEINFO_H
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#define LINEINFO_H
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/* common */
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#include "strbuf.h"
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/*****************************************************************************/
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/* Forwards */
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/*****************************************************************************/
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/* Input file structure */
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struct IFile;
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* The text for the actual line is allocated at the end of the structure, so
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** the size of the structure varies.
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*/
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typedef struct LineInfo LineInfo;
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struct LineInfo {
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unsigned RefCount; /* Reference counter */
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struct IFile* InputFile; /* Input file for this line */
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unsigned LineNum; /* Line number */
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char Line[1]; /* Source code line */
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};
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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LineInfo* UseLineInfo (LineInfo* LI);
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/* Increase the reference count of the given line info and return it. */
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void ReleaseLineInfo (LineInfo* LI);
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/* Release a reference to the given line info, free the structure if the
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** reference count drops to zero.
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*/
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LineInfo* GetCurLineInfo (void);
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/* Return a pointer to the current line info. The reference count is NOT
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** increased, use UseLineInfo for that purpose.
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*/
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void UpdateLineInfo (struct IFile* F, unsigned LineNum, const StrBuf* Line);
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/* Update the line info - called if a new line is read */
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const char* GetInputName (const LineInfo* LI);
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/* Return the file name from a line info */
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unsigned GetInputLine (const LineInfo* LI);
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/* Return the line number from a line info */
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/* End of lineinfo.h */
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#endif
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