diff options
Diffstat (limited to 'src/backend/regex/re_syntax.n')
| -rw-r--r-- | src/backend/regex/re_syntax.n | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/src/backend/regex/re_syntax.n b/src/backend/regex/re_syntax.n index 4621bfc25f4..1afaa7cce7c 100644 --- a/src/backend/regex/re_syntax.n +++ b/src/backend/regex/re_syntax.n @@ -519,15 +519,10 @@ character classes: (note underscore) .RE .PP -Within bracket expressions, `\fB\ed\fR', `\fB\es\fR', -and `\fB\ew\fR'\& -lose their outer brackets, -and `\fB\eD\fR', `\fB\eS\fR', -and `\fB\eW\fR'\& -are illegal. -.VS 8.2 -(So, for example, \fB[a-c\ed]\fR is equivalent to \fB[a-c[:digit:]]\fR. -Also, \fB[a-c\eD]\fR, which is equivalent to \fB[a-c^[:digit:]]\fR, is illegal.) +The class-shorthand escapes also work within bracket expressions, +although the definitions shown above are not quite syntactically +valid in that context. +For example, \fB[a-c\ed]\fR is equivalent to \fB[a-c[:digit:]]\fR. .VE 8.2 .PP A constraint escape (AREs only) is a constraint, |