1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/* -*- c -*-
* File: pstring.h
* Author: Igor Vlasenko <vlasenko@imath.kiev.ua>
* Created: Fri Jul 1 20:11:51 2005
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include "pstring.h"
#include "tmpllog.h"
#include "exprval.h"
#include "pmiscdef.h" /*for snprintf */
static
PSTRING
double_to_pstring (double number, char buffer[], size_t bufsize) {
size_t len=0;
size_t tmplen=0;
PSTRING retval;
snprintf(buffer,bufsize,"%f",number);
len=strlen(buffer);
tmplen=len;
/* removing trailing 0 as 2.00000... */
while (buffer[tmplen-1]=='0' && tmplen-->0);
if (buffer[tmplen-1]=='.') {
tmplen--;
len=tmplen;
}
retval.begin=buffer;
retval.endnext=buffer+len;
return retval;
}
static
PSTRING
int_to_pstring (EXPR_int64 number, char buffer[], size_t bufsize) {
size_t len=0;
PSTRING retval;
snprintf(buffer, bufsize,"%" EXPR_PRId64 , number);
len=strlen(buffer);
retval.begin=buffer;
retval.endnext=buffer+len;
return retval;
}
static
int
pstring_ge(PSTRING a, PSTRING b) {
const char* in_a=a.begin;
const char* in_b=b.begin;
if (in_b==NULL) return 1;
if (in_a==NULL) return 0;
while (in_a<a.endnext && in_b < b.endnext && *in_a++==*in_b++);
if ((in_a==a.endnext && in_b==b.endnext) || *(--in_a) >= *(--in_b) ) return 1; else return 0;
}
static
int
pstring_le(PSTRING a, PSTRING b) {
const char* in_a=a.begin;
const char* in_b=b.begin;
if (in_a==NULL) return 1;
if (in_b==NULL) return 0;
while (in_a<a.endnext && in_b < b.endnext && *in_a++==*in_b++);
if ((in_a==a.endnext && in_b==b.endnext) || *(--in_a) <= *(--in_b) ) return 1; else return 0;
}
static
int
pstring_ne(PSTRING a, PSTRING b) {
const char* in_a=a.begin;
const char* in_b=b.begin;
if (in_a==NULL || in_b==NULL) return in_a != in_b;
while (in_a<a.endnext && in_b < b.endnext && *in_a++==*in_b++);
if (in_a==a.endnext && in_b==b.endnext && *(--in_a) == *(--in_b)) return 0; else return 1;
}
static
int
pstring_eq(PSTRING a, PSTRING b) {
const char* in_a=a.begin;
const char* in_b=b.begin;
if (in_a==NULL || in_b==NULL) return in_a == in_b;
while (in_a<a.endnext && in_b < b.endnext && *in_a++==*in_b++);
if (in_a==a.endnext && in_b==b.endnext && *(--in_a) == *(--in_b)) return 1; else return 0;
}
static
int
pstring_gt(PSTRING a, PSTRING b) {
const char* in_a=a.begin;
const char* in_b=b.begin;
if (in_a==NULL) return 0;
if (in_b==NULL) return 1;
while (in_a<a.endnext && in_b < b.endnext && *in_a++==*in_b++);
if ((in_b==b.endnext && in_a!=a.endnext)
|| (*(--in_a) > *(--in_b)) ) return 1; else return 0;
}
static
int
pstring_lt(PSTRING a, PSTRING b) {
const char* in_a=a.begin;
const char* in_b=b.begin;
if (in_b==NULL) return 0;
if (in_a==NULL) return 1;
while (in_a<a.endnext && in_b < b.endnext && *in_a++==*in_b++);
if ((in_b!=b.endnext && in_a==a.endnext)
|| *(--in_a) < *(--in_b) ) return 1; else return 0;
}
static
int
re_notlike(struct expr_parser* exprobj, PSTRING a, PSTRING b) {
return ! re_like(exprobj, a,b);
}
#ifndef HAVE_PCRE
static
int
re_like(struct expr_parser* exprobj, PSTRING a, PSTRING b) {
log_expr(exprobj,TMPL_LOG_ERROR,"can't parse the regular expression (sorry, Stanislav Yadykin regexp extension is disabled at compile time) \n");
return 0;
}
#else
#include <pcre.h>
static
int
re_like(struct expr_parser* exprobj, PSTRING a, PSTRING b) {
pcre* re;
int ovector[30];
int rc, erroffset;
const char* error;
const char* subject=a.begin;
int subject_length=(int)(a.endnext-a.begin);
char* pattern;
if (subject==NULL) {
log_expr(exprobj,TMPL_LOG_INFO, "regular expression: applied to undefined value.\n");
return 0;
}
if (b.begin==NULL || (b.endnext-b.begin)==0) {
log_expr(exprobj,TMPL_LOG_INFO, "regular expression: the pattern is empty or undefined.\n");
return 1;
}
pattern=(char*)malloc(b.endnext-b.begin);
if (pattern==NULL) {
log_expr(exprobj,TMPL_LOG_ERROR, "regular expression: memory allocation failed.\n");
return 0;
}
strncpy(pattern, b.begin, (b.endnext-b.begin));
*(pattern+(b.endnext-b.begin))=0;
re = pcre_compile(pattern, 0, &error, &erroffset, NULL); /* default character set */
free(pattern);
if (re==NULL) {
log_expr(exprobj,TMPL_LOG_ERROR, "regular expression: PCRE compilation failed at offset %d: %s\n",
erroffset, error);
return 0;
}
rc=pcre_exec(re, NULL, subject, subject_length, 0, 0, ovector, 30);
return (rc<0)?0:1;
}
#endif
|
