diff options
| -rw-r--r-- | doc/re_syntax.n | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/doc/re_syntax.n b/doc/re_syntax.n index 14b0de0..554f659 100644 --- a/doc/re_syntax.n +++ b/doc/re_syntax.n @@ -135,11 +135,26 @@ later, under \fBESCAPES\fR. .TP 8 \fB^\fR . -matches at the beginning of a line +matches at the beginning of the string or a line (according to whether +matching is line-sensitive or not, as described in \fBMATCHING\fR, +below). .TP \fB$\fR . -matches at the end of a line +matches at the end of the string or a line (according to whether +matching is line-sensitive or not, as described in \fBMATCHING\fR, +below). +.RS +.PP +The difference between string and line matching modes is immaterial +when the string does not contain a newline character. The \fB\eA\fR +and \fB\eZ\fR constraint escapes have a similar purpose, but are +always constraints for the overall string. +.PP +The default line-sensitvity depends on the command that uses the +regular expression, and can be overridden as described in +\fBMETASYNTAX\fR, below. +.RE .TP \fB(?=\fIre\fB)\fR . |