diff options
| -rw-r--r-- | lib/mbswidth.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/lib/mbswidth.h b/lib/mbswidth.h index 1ef47d622..f76021b93 100644 --- a/lib/mbswidth.h +++ b/lib/mbswidth.h @@ -23,4 +23,19 @@ # endif #endif -extern int mbswidth PARAMS ((const char *string)); +/* Optional flags to influence mbswidth/mbsnwidth behavior. */ + +/* Assume invalid characters have width 0. If this is not set, the + functions return -1 if an invalid or incomplete character occurs. */ +#define MBSW_ACCEPT_INVALID 1 + +/* Assume unprintable characters have width 1. If this is not set, the + functions return -1 if a non-printable character occurs. */ +#define MBSW_ACCEPT_UNPRINTABLE 2 + +/* Returns the number of screen columns needed for STRING. */ +extern int mbswidth PARAMS ((const char *string, int flags)); + +/* Returns the number of screen columns needed for the NBYTES bytes + starting at BUF. */ +extern int mbsnwidth PARAMS ((const char *buf, size_t nbytes, int flags)); |