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readtokens.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/coreutils/src/gnulib/lib/readtokens.c
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LineSourceCount
1-
2-
3-
4-
5-
6-
7-
8-
9-
10void-
11init_tokenbuffer (token_buffer *tokenbuffer)-
12{-
13 tokenbuffer->size = 0;-
14 tokenbuffer->buffer = -
15 ((void *)0)-
16 ;-
17}
executed 15 times by 2 tests: end of block
Executed by:
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15
18-
19typedef size_t word;-
20enum { bits_per_word = sizeof (word) * 8 };-
21-
22static -
23 _Bool-
24-
25get_nth_bit (size_t n, word const *bitset)-
26{-
27 return
executed 3944754 times by 2 tests: return bitset[n / bits_per_word] >> n % bits_per_word & 1;
Executed by:
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 bitset[n / bits_per_word] >> n % bits_per_word & 1;
executed 3944754 times by 2 tests: return bitset[n / bits_per_word] >> n % bits_per_word & 1;
Executed by:
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3944754
28}-
29-
30static void-
31set_nth_bit (size_t n, word *bitset)-
32{-
33 size_t one = 1;-
34 bitset[n / bits_per_word] |= one << n % bits_per_word;-
35}
executed 1500336 times by 2 tests: end of block
Executed by:
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1500336
36size_t-
37readtoken (FILE *stream,-
38 const char *delim,-
39 size_t n_delim,-
40 token_buffer *tokenbuffer)-
41{-
42 char *p;-
43 int c;-
44 size_t i, n;-
45 word isdelim[(-
46 (0x7f * 2 + 1) -
47 + bits_per_word) / bits_per_word];-
48-
49 memset (isdelim, 0, sizeof isdelim);-
50 for (i = 0; i < n_delim
i < n_delimDescription
TRUEevaluated 1500336 times by 2 tests
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FALSEevaluated 500112 times by 2 tests
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; i++)		500112-1500336
51 {-
52 unsigned char ch = delim[i];-
53 set_nth_bit (ch, isdelim);-
54 }
executed 1500336 times by 2 tests: end of block
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1500336
55-
56-
57 for (c = getc_unlocked (stream); c >= 0
c >= 0Description
TRUEevaluated 500097 times by 2 tests
Evaluated by:
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FALSEevaluated 15 times by 2 tests
Evaluated by:
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 && get_nth_bit (c, isdelim)
get_nth_bit (c, isdelim)Description
TRUEnever evaluated
FALSEevaluated 500097 times by 2 tests
Evaluated by:
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; c = getc_unlocked (stream))		0-500097
58 {-
59-
60 }
never executed: end of block
0
61-
62 p = tokenbuffer->buffer;-
63 n = tokenbuffer->size;-
64 i = 0;-
65 for (;;)-
66 {-
67 if (c < 0
c < 0Description
TRUEevaluated 15 times by 2 tests
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FALSEevaluated 3444657 times by 2 tests
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 && i == 0
i == 0Description
TRUEevaluated 15 times by 2 tests
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FALSEnever evaluated
)		0-3444657
68 return
executed 15 times by 2 tests: return -1;
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 -1;
executed 15 times by 2 tests: return -1;
Executed by:
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15
69-
70 if (i == n
i == nDescription
TRUEevaluated 15 times by 2 tests
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FALSEevaluated 3444642 times by 2 tests
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)		15-3444642
71 p = x2nrealloc (p, &n, sizeof *p);
executed 15 times by 2 tests: p = x2nrealloc (p, &n, sizeof *p);
Executed by:
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15
72-
73 if (c < 0
c < 0Description
TRUEnever evaluated
FALSEevaluated 3444657 times by 2 tests
Evaluated by:
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)		0-3444657
74 {-
75 p[i] = 0;-
76 break;
never executed: break;
0
77 }-
78 if (get_nth_bit (c, isdelim)
get_nth_bit (c, isdelim)Description
TRUEevaluated 500097 times by 2 tests
Evaluated by:
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FALSEevaluated 2944560 times by 2 tests
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)		500097-2944560
79 {-
80 p[i] = 0;-
81 break;
executed 500097 times by 2 tests: break;
Executed by:
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500097
82 }-
83 p[i++] = c;-
84 c = getc_unlocked (stream);-
85 }
executed 2944560 times by 2 tests: end of block
Executed by:
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2944560
86-
87 tokenbuffer->buffer = p;-
88 tokenbuffer->size = n;-
89 return
executed 500097 times by 2 tests: return i;
Executed by:
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 i;
executed 500097 times by 2 tests: return i;
Executed by:
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500097
90}-
91size_t-
92readtokens (FILE *stream,-
93 size_t projected_n_tokens,-
94 const char *delim,-
95 size_t n_delim,-
96 char ***tokens_out,-
97 size_t **token_lengths)-
98{-
99 token_buffer tb, *token = &tb;-
100 char **tokens;-
101 size_t *lengths;-
102 size_t sz;-
103 size_t n_tokens;-
104-
105 if (projected_n_tokens == 0
projected_n_tokens == 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
106 projected_n_tokens = 64;
never executed: projected_n_tokens = 64;
0
107 else-
108 projected_n_tokens++;
never executed: projected_n_tokens++;
0
109-
110 sz = projected_n_tokens;-
111 tokens = xnmalloc (sz, sizeof *tokens);-
112 lengths = xnmalloc (sz, sizeof *lengths);-
113-
114 n_tokens = 0;-
115 init_tokenbuffer (token);-
116 for (;;)-
117 {-
118 char *tmp;-
119 size_t token_length = readtoken (stream, delim, n_delim, token);-
120 if (n_tokens >= sz
n_tokens >= szDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
121 {-
122 tokens = x2nrealloc (tokens, &sz, sizeof *tokens);-
123 lengths = xnrealloc (lengths, sz, sizeof *lengths);-
124 }
never executed: end of block
0
125-
126 if (token_length == (size_t) -1
token_length == (size_t) -1Description
TRUEnever evaluated
FALSEnever evaluated
)		0
127 {-
128-
129 tokens[n_tokens] = -
130 ((void *)0)-
131 ;-
132 lengths[n_tokens] = 0;-
133 break;
never executed: break;
0
134 }-
135 tmp = xnmalloc (token_length + 1, sizeof *tmp);-
136 lengths[n_tokens] = token_length;-
137 tokens[n_tokens] = memcpy (tmp, token->buffer, token_length + 1);-
138 n_tokens++;-
139 }
never executed: end of block
0
140-
141 free (token->buffer);-
142 *tokens_out = tokens;-
143 if (token_lengths !=
token_lengths != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
144 ((void *)0)
token_lengths != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
145 )-
146 *
never executed: *token_lengths = lengths;
token_lengths = lengths;
never executed: *token_lengths = lengths;
0
147 else-
148 free (lengths);
never executed: free (lengths);
0
149 return
never executed: return n_tokens;
 n_tokens;
never executed: return n_tokens;
0
150}-
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