diff options
author | Campbell Barton <ideasman42@gmail.com> | 2020-02-09 17:23:43 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2020-02-09 17:33:47 +0300 |
commit | 89ce270f6137aa359f0fa31cf19485f986bde131 (patch) | |
tree | 2c5d2271678abc626d1660fab06306d0163e8eb5 /source | |
parent | cebd025e02f1147c48cd658816ad835f94128a4a (diff) |
BLI_string_utils: add utility to join a string into a fixed buffer
Diffstat (limited to 'source')
-rw-r--r-- | source/blender/blenlib/BLI_string_utils.h | 8 | ||||
-rw-r--r-- | source/blender/blenlib/intern/string_utils.c | 18 |
2 files changed, 26 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_string_utils.h b/source/blender/blenlib/BLI_string_utils.h index 13dbb2de659..b3aed438641 100644 --- a/source/blender/blenlib/BLI_string_utils.h +++ b/source/blender/blenlib/BLI_string_utils.h @@ -44,6 +44,11 @@ void BLI_string_split_suffix(const char *string, char *r_body, char *r_suf, cons void BLI_string_split_prefix(const char *string, char *r_pre, char *r_body, const size_t str_len); /* Join strings, return newly allocated string. */ +char *BLI_string_join_array(char *result, + size_t result_len, + const char *strings[], + uint strings_len) ATTR_NONNULL(); + char *BLI_string_join_arrayN(const char *strings[], uint strings_len) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(); char *BLI_string_join_array_by_sep_charN(char sep, @@ -54,6 +59,9 @@ char *BLI_string_join_array_by_sep_char_with_tableN(char sep, const char *strings[], uint strings_len) ATTR_NONNULL(); /* Take multiple arguments, pass as (array, length). */ +#define BLI_string_join(result, result_len, ...) \ + BLI_string_join_array( \ + result, result_len, ((const char *[]){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__)) #define BLI_string_joinN(...) \ BLI_string_join_arrayN(((const char *[]){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__)) #define BLI_string_join_by_sep_charN(sep, ...) \ diff --git a/source/blender/blenlib/intern/string_utils.c b/source/blender/blenlib/intern/string_utils.c index b956e1c0a7e..85cb32b6457 100644 --- a/source/blender/blenlib/intern/string_utils.c +++ b/source/blender/blenlib/intern/string_utils.c @@ -410,12 +410,30 @@ bool BLI_uniquename( /** \name Join Strings * * For non array versions of these functions, use the macros: + * - #BLI_string_join * - #BLI_string_joinN * - #BLI_string_join_by_sep_charN * - #BLI_string_join_by_sep_char_with_tableN * * \{ */ +char *BLI_string_join_array(char *result, + size_t result_len, + const char *strings[], + uint strings_len) +{ + char *c = result; + char *c_end = &result[result_len - 1]; + for (uint i = 0; i < strings_len; i++) { + const char *p = strings[i]; + while (*p && (c < c_end)) { + *c++ = *p++; + } + } + *c = '\0'; + return c; +} + /** * Join an array of strings into a newly allocated, null terminated string. */ |