diff options
Diffstat (limited to 'src/backend/utils/mb/mbutils.c')
| -rw-r--r-- | src/backend/utils/mb/mbutils.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/backend/utils/mb/mbutils.c b/src/backend/utils/mb/mbutils.c index 2e0a446de20..e359a53df3d 100644 --- a/src/backend/utils/mb/mbutils.c +++ b/src/backend/utils/mb/mbutils.c @@ -3,7 +3,7 @@ * client encoding and server internal encoding. * (currently mule internal code (mic) is used) * Tatsuo Ishii - * $Id: mbutils.c,v 1.3 1998/09/01 04:33:22 momjian Exp $ */ + * $Id: mbutils.c,v 1.4 1998/09/25 01:46:23 momjian Exp $ */ #include <stdio.h> #include <string.h> @@ -202,6 +202,34 @@ pg_mbstrlen_with_len(const unsigned char *mbstr, int limit) } /* + * returns the length of a multi-byte string + * (not necessarily NULL terminated) + * that is not longer than limit. + * this function does not break multi-byte word boundary. + */ +int +pg_mbcliplen(const unsigned char *mbstr, int len, int limit) +{ + int clen = 0; + int l; + + while (*mbstr && len > 0) + { + l = pg_mblen(mbstr); + if ((clen + l) > limit) { + break; + } + clen += l; + if (clen == limit) { + break; + } + len -= l; + mbstr += l; + } + return (clen); +} + +/* * fuctions for utils/init */ static int DatabaseEncoding = MULTIBYTE; |