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%{
/*
* (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;
}
%%
|
