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| author | Richard M. Stallman <rms@gnu.org> | 2003-02-15 19:27:40 +0000 |
|---|---|---|
| committer | Richard M. Stallman <rms@gnu.org> | 2003-02-15 19:27:40 +0000 |
| commit | 87bf725ea96fb3b0e6fb36fedbeb9257914525c4 (patch) | |
| tree | f83b6a8207c9cba527374a3dcbac7bec2088290a /lispref/searching.texi | |
| parent | 95a85681fb5c8ba01d06758e8f85ea798b3f6943 (diff) | |
| download | emacs-87bf725ea96fb3b0e6fb36fedbeb9257914525c4.tar.gz | |
Clarify that match data is unpredictable after failing searches.
Diffstat (limited to 'lispref/searching.texi')
| -rw-r--r-- | lispref/searching.texi | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lispref/searching.texi b/lispref/searching.texi index a172332e3a3..59c5a7fb16a 100644 --- a/lispref/searching.texi +++ b/lispref/searching.texi @@ -1255,7 +1255,7 @@ just the text that matched @samp{\(ba*r\)}. @subsection Simple Match Data Access This section explains how to use the match data to find out what was -matched by the last search or match operation. +matched by the last search or match operation, if it succeeded. You can ask about the entire matching text, or about a particular parenthetical subexpression of a regular expression. The @var{count} @@ -1273,7 +1273,8 @@ only information available is about the entire match. A search which fails may or may not alter the match data. In the past, a failing search did not do this, but we may change it in the -future. +future. So don't try to rely on the value of the match data after +a failing search. @defun match-string count &optional in-string This function returns, as a string, the text matched in the last search |