%{

/*

 * (C) Copyright 2014, Stephen M. Cameron.

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License version 2 as

 *  published by the Free Software Foundation.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 */

#include <stdio.h>

#include <string.h>

#include "y.tab.h"

#define YYSTYPE PARSER_VALUE_TYPE

extern int lexer_input(char *buffer, unsigned int *nbytes, int buffersize);

#undef YY_INPUT

#define YY_INPUT(buffer, bytes_read, bytes_requested)			\

({									\

	int __ret;							\

	unsigned int __bread = bytes_read;				\

	__ret = lexer_input((buffer), &__bread, (bytes_requested));	\

	bytes_read = __bread;						\

	__ret;								\

})

extern int yyerror(long long *result, double *dresult,

		int *has_error, int *units_specified, const char *msg);

static void __attribute__((unused)) yyunput(int c, char *buf_ptr);

static int __attribute__((unused)) input(void);

/* set by parser -- this is another thing which makes the parser thread-unsafe :(. */

int lexer_value_is_time = 0; /* for determining if "m" suffix means mega- or minutes */

#define set_suffix_value(yylval, i_val, d_val, has_d_val) \

	(yylval).v.dval = (d_val); \

	(yylval).v.ival = (i_val); \

	(yylval).v.has_dval = (has_d_val); \

	(yylval).v.has_error = 0;

%}

%%

[kK]|[kK][bB] 	{

			set_suffix_value(yylval, 1024, 1024.0, 0);

			return SUFFIX;

		}

[Mm][bB]	{

			set_suffix_value(yylval, 1024 * 1024, 1024.0 * 1024.0, 0);

			return SUFFIX;

		}

[mM][sS]	{

			set_suffix_value(yylval, 1000, 1000.0, 1);

			return SUFFIX;

		}

[uU][sS]	{

			set_suffix_value(yylval, 1, 1.0, 1);

			return SUFFIX;

		}

[gG]|[Gg][Bb]	{

			set_suffix_value(yylval, 1024LL * 1024 * 1024, 1024.0 * 1024.0 * 1024, 0);

			return SUFFIX;

		}

[tT]|[tT][bB]	{	

			set_suffix_value(yylval, 1024LL * 1024 * 1024 * 1024,

						1024.0 * 1024.0 * 1024.0 * 1024.0 * 1024, 0);

			return SUFFIX;

		}

[pP]|[pP][bB]	{	

			set_suffix_value(yylval, 1024LL * 1024 * 1024 * 1024 * 1024,

					1024.0 * 1024.0 * 1024.0 * 1024.0 * 1024.0, 0);

			return SUFFIX;

		}

[kK][iI][Bb]	{

			set_suffix_value(yylval, 1000LL, 1000.0, 0);

			return SUFFIX;

		}

[mM][Ii][bB]	{

			set_suffix_value(yylval, 1000000LL, 1000000.0 , 0);

			return SUFFIX;

		}

[gG][iI][Bb]	{

			set_suffix_value(yylval, 1000000000LL, 1000000000.0 , 0);

			return SUFFIX;

		}

[pP][iI][Bb]	{	

			set_suffix_value(yylval, 1000000000000LL, 1000000000000.0 , 0);

			return SUFFIX;

		}

[sS]		{

			set_suffix_value(yylval, 1000000LL, 1000000.0 , 0);

			return SUFFIX;

		}

[mM]		{

			if (!lexer_value_is_time) {

				set_suffix_value(yylval, 1024 * 1024, 1024.0 * 1024.0, 0);

			} else {

				set_suffix_value(yylval, 60LL * 1000000LL, 60.0 * 1000000.0, 0);

			}

			return SUFFIX;

		}

[dD]		{

			set_suffix_value(yylval, 60LL * 60LL * 24LL * 1000000LL,

						60.0 * 60.0 * 24.0 * 1000000.0, 0);

			return SUFFIX;

		}

[hH]		{	

			set_suffix_value(yylval, 60LL * 60LL * 1000000LL,

					60.0 * 60.0 * 1000000.0, 0);

			return SUFFIX;

		}

[ \t] ; /* ignore whitespace */

[#:,].* ; /* ignore comments, and everything after colons and commas */

[0-9]*[.][0-9]+|[0-9]*[.]?[0-9]+[eE][-+]*[0-9]+ {

			int rc;

			double dval;

			rc = sscanf(yytext, "%lf", &dval);

			if (rc == 1) {

				yylval.v.dval = dval;

				yylval.v.ival = (long long) dval;

				yylval.v.has_dval = 1;

				yylval.v.has_error = 0;

				return NUMBER;

			} else {

				yyerror(0, 0, 0, 0, "bad number\n");

				yylval.v.has_error = 1;

				return NUMBER;

			}

		}

0x[0-9a-fA-F]+ {

		int rc, intval;

		rc = sscanf(yytext, "%x", &intval);

		if (rc == 1) {

			yylval.v.ival = intval;

			yylval.v.dval = (double) intval;

			yylval.v.has_dval = 0;

			yylval.v.has_error = 0;

			return NUMBER;

		} else {

			yyerror(0, 0, 0, 0, "bad number\n");

			yylval.v.has_error = 1;

			return NUMBER;

		}

	}

[0-9]+	{

		int rc, intval;

		rc = sscanf(yytext, "%d", &intval);

		if (rc == 1) {

			yylval.v.ival = intval;

			yylval.v.dval = (double) intval;

			yylval.v.has_dval = 0;

			yylval.v.has_error = 0;

			return NUMBER;

		} else {

			yyerror(0, 0, 0, 0, "bad number\n");

			yylval.v.has_error = 1;

			return NUMBER;

		}

	}

\n	return 0;

[+-/*()^%]	return yytext[0];

.	{

		yylval.v.has_error = 1;

		return NUMBER;	

	}

%%