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| author | dkf <donal.k.fellows@manchester.ac.uk> | 2021-01-05 20:35:25 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2021-01-05 20:35:25 (GMT) |
| commit | 124e36102e8b08023fe370defa49f89705d61a13 (patch) | |
| tree | dee766451814776c9dd0a6744ee33c975d500006 | |
| parent | 3b7c040233cbbfe0f1e1187325365597fed23d8d (diff) | |
| parent | fb6da59e2f75fde712df8d3936b702d2e4a85343 (diff) | |
| download | tcl-124e36102e8b08023fe370defa49f89705d61a13.zip tcl-124e36102e8b08023fe370defa49f89705d61a13.tar.gz tcl-124e36102e8b08023fe370defa49f89705d61a13.tar.bz2 | |
Fix unclear language in re_syntax. [2da4c23916]
| -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 4504a58..628b1bf 100644 --- a/doc/re_syntax.n +++ b/doc/re_syntax.n @@ -137,11 +137,26 @@ 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 . |