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/*
* $Id$
*
* Copyright (c) 1998-2002, Darren Hiebert
*
* This source code is released for free distribution under the terms of the
* GNU General Public License.
*
* External interface to read.c
*/
#ifndef _READ_H
#define _READ_H
#if defined(FILE_WRITE) || defined(VAXC)
# define CONST_FILE
#else
# define CONST_FILE const
#endif
/*
* INCLUDE FILES
*/
#include "general.h" /* must always come first */
#include <stdio.h>
#include <ctype.h>
#include "parse.h"
#include "vstring.h"
/*
* MACROS
*/
#define getInputLineNumber() File.lineNumber
#define getInputFileName() vStringValue (File.source.name)
#define getInputFilePosition() File.filePosition
#define getSourceFileName() vStringValue (File.source.name)
#define getSourceFileTagPath() File.source.tagPath
#define getSourceLanguage() File.source.language
#define getSourceLanguageName() getLanguageName (File.source.language)
#define getSourceLineNumber() File.source.lineNumber
#define isLanguage(lang) (boolean)((lang) == File.source.language)
#define isHeaderFile() File.source.isHeader
/*
* DATA DECLARATIONS
*/
enum eCharacters {
/* white space characters */
SPACE = ' ',
NEWLINE = '\n',
CRETURN = '\r',
FORMFEED = '\f',
TAB = '\t',
VTAB = '\v',
/* some hard to read characters */
DOUBLE_QUOTE = '"',
SINGLE_QUOTE = '\'',
BACKSLASH = '\\',
STRING_SYMBOL = ('S' + 0x80),
CHAR_SYMBOL = ('C' + 0x80)
};
/* Maintains the state of the current source file.
*/
typedef struct sInputFile {
vString *name; /* name of input file */
vString *path; /* path of input file (if any) */
vString *line; /* last line read from file */
const unsigned char* currentLine; /* current line being worked on */
FILE *fp; /* stream used for reading the file */
unsigned long lineNumber; /* line number in the input file */
fpos_t filePosition; /* file position of current line */
int ungetch; /* a single character that was ungotten */
boolean eof; /* have we reached the end of file? */
boolean newLine; /* will the next character begin a new line? */
/* Contains data pertaining to the original source file in which the tag
* was defined. This may be different from the input file when #line
* directives are processed (i.e. the input file is preprocessor output).
*/
struct sSource {
vString *name; /* name to report for source file */
char *tagPath; /* path of source file relative to tag file */
unsigned long lineNumber;/* line number in the source file */
boolean isHeader; /* is source file a header file? */
langType language; /* language of source file */
} source;
} inputFile;
/*
* GLOBAL VARIABLES
*/
extern CONST_FILE inputFile File;
/*
* FUNCTION PROTOTYPES
*/
extern void freeSourceFileResources (void);
extern boolean fileOpen (const char *const fileName, const langType language);
extern boolean fileEOF (void);
extern void fileClose (void);
extern int fileGetc (void);
extern int fileSkipToCharacter (int c);
extern void fileUngetc (int c);
extern const unsigned char *fileReadLine (void);
extern char *readLine (vString *const vLine, FILE *const fp);
extern char *readSourceLine (vString *const vLine, fpos_t location, long *const pSeekValue);
#endif /* _READ_H */
/* vi:set tabstop=4 shiftwidth=4: */
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