diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 21 |
1 files changed, 20 insertions, 1 deletions
@@ -31748,9 +31748,18 @@ matches at .meta position in .metn string . + If .meta position -is not specified, it is taken to be zero. +is not specified, it is taken to be zero. Negative values +of +.meta position +index from the right end of the string such that -1 +refers to the last character. Excessively negative +values which index before the first character cause +.code nil +to be returned. + If the regex matches, then the length of the match is returned. If it does not match, then .code nil @@ -31778,10 +31787,20 @@ function tests whether contains a match which ends precisely on the character just before .metn end-position . + If .meta end-position is not specified, it defaults to the length of the string, and the function performs a right-anchored regex match. +The +.meta end-position +argument can be a negative integer, in which case it denotes +positions from the end of the string, such that -1 refers +to the last character. If the value is excessively negative such +that the position immediately before it is before the start +of the string, then +.code nil +is returned. If a match is found, then the length of the match is returned. |