/* Copyright (C) 2003, 2004 Dave Bayer. Subject to the terms and conditions of the MIT License. */

#include "root.h"
#include "file.h"
#include "filter.h"

/*, strState */
typedef enum { strStart, strPrint, strNStates } strState;

/*, strTable */
static filterRules *strTable[strNStates][NCHARS];

/*, strRules */
static filterRules strRules[] =
{
	{ "", "\t\"", strStart, strPrint, 0 },
	{ "\"", "\\\"", strPrint, strPrint, 0 },
	{ "\\", "\\\\", strPrint, strPrint, 0 },
	{ "\t", "\\t", strPrint, strPrint, 0 },
	{ "\n", "\",\n", strPrint, strStart, 0 },	
	{ 0 }
};

/*, fileToCStrings */
void fileToCStrings( const char *inputFile, const char *outputFile )
{
	FILE *fin, *fout;
	line *l;
	lineFilter filter;
	filterState state;

	/* construct finite state machine */
	initFilterTable( strTable, strRules, strNStates, YES );
	
	/* initialize filter and state */
	filter.filt = stateFilter;
	filter.next = 0;
	filter.data = &state;
	state.table = strTable;
	state.state = strStart;
	state.filt = 0;

	/* open input and open files */
	fin = fileOpen( inputFile, "r", YES );
	fout = fileOpen( outputFile, "w", YES );

	/* read and filter fin, write to fout */
	l = fileRead( fin, &filter, 0 );
	fprintf( fout, "{\n" );
	fileWrite( fout, l, 0 );
	fprintf( fout, "\t0\n};\n" );

	/* close input and open files */
	fileClose( fin, YES );
	fileClose( fout, YES );
	
	/* free allocated memory */
	lineListFree( l, markFree );

	/* check that all memory has been freed */
	mallocCount();	
}

/*, main */
int main( int argc, const char *argv[] )
{
	if ( argc != 3 )
		printf( "Usage: cstring input output\n" );
	else
		fileToCStrings( argv[1], argv[2] );
	return 0;
}