OpenCoverage

trim.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/coreutils/src/gnulib/lib/trim.c
Source codeSwitch to Preprocessed file
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1/* Removes leading and/or trailing whitespaces-
2 Copyright (C) 2006-2018 Free Software Foundation, Inc.-
3-
4 This program is free software: you can redistribute it and/or modify-
5 it under the terms of the GNU General Public License as published by-
6 the Free Software Foundation; either version 3 of the License, or-
7 (at your option) any later version.-
8-
9 This program is distributed in the hope that it will be useful,-
10 but WITHOUT ANY WARRANTY; without even the implied warranty of-
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the-
12 GNU General Public License for more details.-
13-
14 You should have received a copy of the GNU General Public License-
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */-
16-
17/* Written by Davide Angelocola <davide.angelocola@gmail.com> */-
18-
19#include <config.h>-
20-
21/* Specification. */-
22#include "trim.h"-
23-
24#include <ctype.h>-
25#include <string.h>-
26#include <stddef.h>-
27#include <stdlib.h>-
28-
29#include "mbchar.h"-
30#include "mbiter.h"-
31#include "xalloc.h"-
32-
33/* Use this to suppress gcc's "...may be used before initialized" warnings. */-
34#if defined GCC_LINT || defined lint-
35# define IF_LINT(Code) Code-
36#else-
37# define IF_LINT(Code) /* empty */-
38#endif-
39-
40char *-
41trim2 (const char *s, int how)-
42{-
43 char *d;-
44-
45 d = strdup (s);
never executed: __retval = (char *) memcpy (__retval, s , __len);
__retval != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
((const char *... ))[0] == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
__builtin_constant_p ( s )Description
TRUEnever evaluated
FALSEnever evaluated
((size_t)(cons... *)( s ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
46-
47 if (!d)
!dDescription
TRUEnever evaluated
FALSEnever evaluated
0
48 xalloc_die ();
never executed: xalloc_die ();
0
49-
50 if (MB_CUR_MAX > 1)
(__ctype_get_m...ur_max ()) > 1Description
TRUEnever evaluated
FALSEnever evaluated
0
51 {-
52 mbi_iterator_t i;-
53-
54 /* Trim leading whitespaces. */-
55 if (how != TRIM_TRAILING)
how != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
56 {-
57 mbi_init (i, d, strlen (d));-
58-
59 for (; mbi_avail (i) && mb_isspace (mbi_cur (i)); mbi_advance (i))
(i).cur.ptr < (i).limitDescription
TRUEnever evaluated
FALSEnever evaluated
((i).cur).wc_validDescription
TRUEnever evaluated
FALSEnever evaluated
iswspace (((i).cur).wc)Description
TRUEnever evaluated
FALSEnever evaluated
0
60 ;
never executed: ;
0
61-
62 memmove (d, mbi_cur_ptr (i), strlen (mbi_cur_ptr (i)) + 1);-
63 }
never executed: end of block
0
64-
65 /* Trim trailing whitespaces. */-
66 if (how != TRIM_LEADING)
how != 1Description
TRUEnever evaluated
FALSEnever evaluated
0
67 {-
68 unsigned int state = 0;-
69 char *r IF_LINT (= NULL); /* used only while state = 2 */-
70-
71 mbi_init (i, d, strlen (d));-
72-
73 for (; mbi_avail (i); mbi_advance (i))
(i).cur.ptr < (i).limitDescription
TRUEnever evaluated
FALSEnever evaluated
0
74 {-
75 if (state == 0 && mb_isspace (mbi_cur (i)))
state == 0Description
TRUEnever evaluated
FALSEnever evaluated
((i).cur).wc_validDescription
TRUEnever evaluated
FALSEnever evaluated
iswspace (((i).cur).wc)Description
TRUEnever evaluated
FALSEnever evaluated
0
76 continue;
never executed: continue;
0
77-
78 if (state == 0 && !mb_isspace (mbi_cur (i)))
state == 0Description
TRUEnever evaluated
FALSEnever evaluated
((i).cur).wc_validDescription
TRUEnever evaluated
FALSEnever evaluated
iswspace (((i).cur).wc)Description
TRUEnever evaluated
FALSEnever evaluated
0
79 {-
80 state = 1;-
81 continue;
never executed: continue;
0
82 }-
83-
84 if (state == 1 && !mb_isspace (mbi_cur (i)))
state == 1Description
TRUEnever evaluated
FALSEnever evaluated
((i).cur).wc_validDescription
TRUEnever evaluated
FALSEnever evaluated
iswspace (((i).cur).wc)Description
TRUEnever evaluated
FALSEnever evaluated
0
85 continue;
never executed: continue;
0
86-
87 if (state == 1 && mb_isspace (mbi_cur (i)))
state == 1Description
TRUEnever evaluated
FALSEnever evaluated
((i).cur).wc_validDescription
TRUEnever evaluated
FALSEnever evaluated
iswspace (((i).cur).wc)Description
TRUEnever evaluated
FALSEnever evaluated
0
88 {-
89 state = 2;-
90 r = (char *) mbi_cur_ptr (i);-
91 }
never executed: end of block
0
92 else if (state == 2 && mb_isspace (mbi_cur (i)))
state == 2Description
TRUEnever evaluated
FALSEnever evaluated
((i).cur).wc_validDescription
TRUEnever evaluated
FALSEnever evaluated
iswspace (((i).cur).wc)Description
TRUEnever evaluated
FALSEnever evaluated
0
93 {-
94 /* empty */-
95 }
never executed: end of block
0
96 else-
97 {-
98 state = 1;-
99 }
never executed: end of block
0
100 }-
101-
102 if (state == 2)
state == 2Description
TRUEnever evaluated
FALSEnever evaluated
0
103 *r = '\0';
never executed: *r = '\0';
0
104 }
never executed: end of block
0
105 }
never executed: end of block
0
106 else-
107 {-
108 char *p;-
109-
110 /* Trim leading whitespaces. */-
111 if (how != TRIM_TRAILING)
how != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
112 {-
113 for (p = d; *p && isspace ((unsigned char) *p); p++)
*pDescription
TRUEnever evaluated
FALSEnever evaluated
((*__ctype_b_l...int) _ISspace)Description
TRUEnever evaluated
FALSEnever evaluated
0
114 ;
never executed: ;
0
115-
116 memmove (d, p, strlen (p) + 1);-
117 }
never executed: end of block
0
118-
119 /* Trim trailing whitespaces. */-
120 if (how != TRIM_LEADING)
how != 1Description
TRUEnever evaluated
FALSEnever evaluated
0
121 {-
122 for (p = d + strlen (d) - 1;-
123 p >= d && isspace ((unsigned char) *p); p--)
p >= dDescription
TRUEnever evaluated
FALSEnever evaluated
((*__ctype_b_l...int) _ISspace)Description
TRUEnever evaluated
FALSEnever evaluated
0
124 *p = '\0';
never executed: *p = '\0';
0
125 }
never executed: end of block
0
126 }
never executed: end of block
0
127-
128 return d;
never executed: return d;
0
129}-
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