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/*
* Copyright 2007-2018 Adrian Thurston <thurston@colm.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _RLSCAN_H
#define _RLSCAN_H
#include <iostream>
#include <fstream>
#include <string.h>
#include "global.h"
#include "lmparse.h"
#include "compiler.h"
#include "avltree.h"
#include "vector.h"
#include "buffer.h"
using std::ifstream;
using std::istream;
using std::ostream;
using std::cout;
using std::cerr;
using std::endl;
extern char *Parser_lelNames[];
struct ColmScanner
{
ColmScanner( const char *fileName, istream &input,
ColmParser *parser, int includeDepth )
:
fileName(fileName), input(input),
includeDepth(includeDepth),
line(1), column(1), lastnl(0),
parser(parser),
parserExistsError(false),
whitespaceOn(true)
{
}
ifstream *tryOpenInclude( char **pathChecks, long &found );
char **makeIncludePathChecks( const char *thisFileName, const char *fileName );
bool recursiveInclude( const char *inclFileName );
void sectionParseInit();
void token( int type, char *start, char *end );
void token( int type, char c );
void token( int type );
void updateCol();
void endSection();
void scan();
void eof();
ostream &scan_error();
const char *fileName;
istream &input;
int includeDepth;
int cs;
int line;
char *word, *lit;
int word_len, lit_len;
InputLoc sectionLoc;
char *ts, *te;
int column;
char *lastnl;
/* Set by machine statements, these persist from section to section
* allowing for unnamed sections. */
ColmParser *parser;
IncludeStack includeStack;
/* This is set if ragel has already emitted an error stating that
* no section name has been seen and thus no parser exists. */
bool parserExistsError;
/* This is for inline code. By default it is on. It goes off for
* statements and values in inline blocks which are parsed. */
bool whitespaceOn;
Buffer litBuf;
};
#endif /* _RLSCAN_H */
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