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| author | Kaz Kylheku <kaz@kylheku.com> | 2014-07-19 19:19:21 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2014-07-19 19:19:21 -0700 |
| commit | 8fe8e46c6dce8292f2c12660d0c383e521f9233a (patch) | |
| tree | 347e192c467d2140b61ecc77356e18b544535fef /txr.1 | |
| parent | 5f9d1d22af102a8e9d2a769ea02243fb5763fe74 (diff) | |
| download | txr-8fe8e46c6dce8292f2c12660d0c383e521f9233a.tar.gz txr-8fe8e46c6dce8292f2c12660d0c383e521f9233a.tar.bz2 txr-8fe8e46c6dce8292f2c12660d0c383e521f9233a.zip | |
* lib.c (search_str): Support negative starting index.
Hoist uselessly repeated c_str operation out of loop.
* txr.1: Document negative starting index for search-str.
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -9337,8 +9337,12 @@ The search-str function finds an occurrence of the string <needle> inside the <haystack> string and returns its position. If no such occurrence exists, it returns nil. -If a <start> argument is specified, it gives the starting index for the -search. If the <from-end> argument is specified and is not nil, it means +If a <start> argument is not specified, it defaults to zero. If it is +a non-negative integer, it specifies the starting character position for +the search. Negative values of <start> indicate positions from the end of the +string, such that -1 is the last character of the string. + +If the <from-end> argument is specified and is not nil, it means that the search is conducted right-to-left. If multiple matches are possible, it will find the rightmost one rather than the leftmost one. |