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common: New function compare_version_strings.

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* common/stringhelp.c (parse_version_number): New.
(parse_version_string): New.
(compare_version_strings): New.
* common/t-stringhelp.c (test_compare_version_strings): New.
(main): Call test.  Return ERRCOUNT instead of 0.
--

The code for that function is based on code from libgcrypt.  Similar
code is in all GnuPG related libraries this function is
a candidates for inclusion in libgpg-error.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-01-08 08:58:21 +01:00
parent 496643291e
commit 4d7ac43ff7
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GPG key ID: E3FDFF218E45B72B
3 changed files with 150 additions and 1 deletions
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common/stringhelp.h
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@ -148,6 +148,9 @@ char **strsplit (char *string, char delim, char replacement, int *count);
/* Tokenize STRING using the set of delimiters in DELIM. */
char **strtokenize (const char *string, const char *delim);
/* Return True if MYVERSION is greater or equal than REQ_VERSION. */
int compare_version_strings (const char *my_version, const char *req_version);
/* Format a string so that it fits within about TARGET_COLS columns. */
char *format_text (char *text, int in_place, int target_cols, int max_cols);