Get rid if --header-file argument for lex
[fio.git] / exp / expression-parser.l
CommitLineData
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1%{
2
3/*
4 * (C) Copyright 2014, Stephen M. Cameron.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21#include <stdio.h>
22#include <string.h>
23#include "y.tab.h"
24
25#define YYSTYPE PARSER_VALUE_TYPE
26
de06a468 27extern int lexer_input(char *buffer, unsigned int *nbytes, int buffersize);
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28
29#undef YY_INPUT
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30#define YY_INPUT(buffer, bytes_read, bytes_requested) \
31({ \
32 int __ret; \
de06a468 33 unsigned int __bread = bytes_read; \
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34 __ret = lexer_input((buffer), &__bread, (bytes_requested)); \
35 bytes_read = __bread; \
bc10c331 36 __ret; \
3fcc6ca7 37})
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38
39extern int yyerror(long long *result, double *dresult,
3b0d05e8 40 int *has_error, int *units_specified, const char *msg);
b470a02c 41
bc10c331 42static void __attribute__((unused)) yyunput(int c, char *buf_ptr);
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43static int __attribute__((unused)) input(void);
44
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45#define set_suffix_value(yylval, i_val, d_val, has_d_val) \
46 (yylval).v.dval = (d_val); \
47 (yylval).v.ival = (i_val); \
48 (yylval).v.has_dval = (has_d_val); \
49 (yylval).v.has_error = 0;
50
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51%}
52
53%%
54
55
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56[kK]|[kK][bB] {
57 set_suffix_value(yylval, 1024, 1024.0, 0);
58 return SUFFIX;
59 }
60[Mm]|[Mm][bB] {
61 set_suffix_value(yylval, 1024 * 1024, 1024.0 * 1024.0, 0);
62 return SUFFIX;
63 }
64[mM][sS] {
65 set_suffix_value(yylval, 1000, 1000.0, 1);
66 return SUFFIX;
67 }
68[uU][sS] {
69 set_suffix_value(yylval, 1, 1.0, 1);
70 return SUFFIX;
71 }
72[gG]|[Gg][Bb] {
73 set_suffix_value(yylval, 1024LL * 1024 * 1024, 1024.0 * 1024.0 * 1024, 0);
74 return SUFFIX;
75 }
76[tT]|[tT][bB] {
77 set_suffix_value(yylval, 1024LL * 1024 * 1024 * 1024,
78 1024.0 * 1024.0 * 1024.0 * 1024.0 * 1024, 0);
79 return SUFFIX;
80 }
81[pP]|[pP][bB] {
82 set_suffix_value(yylval, 1024LL * 1024 * 1024 * 1024 * 1024,
83 1024.0 * 1024.0 * 1024.0 * 1024.0 * 1024.0, 0);
84 return SUFFIX;
85 }
86[kK][iI][Bb] {
87 set_suffix_value(yylval, 1000LL, 1000.0, 0);
88 return SUFFIX;
89 }
90[mM][Ii][bB] {
91 set_suffix_value(yylval, 1000000LL, 1000000.0 , 0);
92 return SUFFIX;
93 }
94[gG][iI][Bb] {
95 set_suffix_value(yylval, 1000000000LL, 1000000000.0 , 0);
96 return SUFFIX;
97 }
98[pP][iI][Bb] {
99 set_suffix_value(yylval, 1000000000000LL, 1000000000000.0 , 0);
100 return SUFFIX;
101 }
102[sS] {
103 set_suffix_value(yylval, 1000000LL, 1000000.0 , 0);
104 return SUFFIX;
105 }
106[dD] {
107 set_suffix_value(yylval, 60LL * 60LL * 24LL * 1000000LL,
108 60.0 * 60.0 * 24.0 * 1000000.0, 0);
109 return SUFFIX;
110 }
111[hH] {
112 set_suffix_value(yylval, 60LL * 60LL * 1000000LL,
113 60.0 * 60.0 * 1000000.0, 0);
114 return SUFFIX;
115 }
b470a02c 116[ \t] ; /* ignore whitespace */
51a65a41 117[#:,].* ; /* ignore comments, and everything after colons and commas */
ca45c1f3 118[0-9]*[.][0-9]+|[0-9]*[.]?[0-9]+[eE][-+]*[0-9]+ {
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119 int rc;
120 double dval;
121
122 rc = sscanf(yytext, "%lf", &dval);
123 if (rc == 1) {
124 yylval.v.dval = dval;
125 yylval.v.ival = (long long) dval;
126 yylval.v.has_dval = 1;
127 yylval.v.has_error = 0;
128 return NUMBER;
129 } else {
3b0d05e8 130 yyerror(0, 0, 0, 0, "bad number\n");
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131 yylval.v.has_error = 1;
132 return NUMBER;
133 }
134 }
1350x[0-9a-fA-F]+ {
136 int rc, intval;
137 rc = sscanf(yytext, "%x", &intval);
138 if (rc == 1) {
139 yylval.v.ival = intval;
140 yylval.v.dval = (double) intval;
141 yylval.v.has_dval = 0;
142 yylval.v.has_error = 0;
143 return NUMBER;
144 } else {
3b0d05e8 145 yyerror(0, 0, 0, 0, "bad number\n");
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146 yylval.v.has_error = 1;
147 return NUMBER;
148 }
149 }
150[0-9]+ {
151 int rc, intval;
152 rc = sscanf(yytext, "%d", &intval);
153 if (rc == 1) {
154 yylval.v.ival = intval;
155 yylval.v.dval = (double) intval;
156 yylval.v.has_dval = 0;
157 yylval.v.has_error = 0;
158 return NUMBER;
159 } else {
3b0d05e8 160 yyerror(0, 0, 0, 0, "bad number\n");
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161 yylval.v.has_error = 1;
162 return NUMBER;
163 }
164 }
165\n return 0;
886e5ecd 166[+-/*()^%] return yytext[0];
ae46966a 167
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168. {
169 yylval.v.has_error = 1;
170 return NUMBER;
171 }
172%%
173