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common: New function split_fields_colon.

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* common/stringhelp.c (split_fields_colon): New.
* common/t-stringhelp.c (test_split_fields_colon): New test.
(main): Call that test.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2017-07-17 13:00:44 +02:00
parent 58eafd11ed
commit 849467870e
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GPG key ID: E3FDFF218E45B72B
3 changed files with 116 additions and 0 deletions
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36
common/stringhelp.c
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@ -1339,6 +1339,42 @@ split_fields (char *string, char **array, int arraysize)
}
/* Split a string into colon delimited fields A pointer to each field
* is stored in ARRAY. Stop splitting at ARRAYSIZE fields. The
* function modifies STRING. The number of parsed fields is returned.
* Note that leading and trailing spaces are not removed from the fields.
* Example:
*
* char *fields[2];
* if (split_fields (string, fields, DIM (fields)) < 2)
* return // Not enough args.
* foo (fields[0]);
* foo (fields[1]);
*/
int
split_fields_colon (char *string, char **array, int arraysize)
{
int n = 0;
char *p, *pend;
p = string;
do
{
if (n == arraysize)
break;
array[n++] = p;
pend = strchr (p, ':');
if (!pend)
break;
*pend++ = 0;
p = pend;
}
while (*p);
return n;
}
/* Version number parsing. */