regexp: document new character classes and constraint escapes

Signed-off-by: Steve Bennett <steveb@workware.net.au>

1 files changed, 7 insertions, 6 deletions

diff --git a/jim_tcl.txt b/jim_tcl.txt
index ed48276..087ac4a 100644
--- a/jim_tcl.txt
+++ b/jim_tcl.txt
@@ -1025,14 +1025,15 @@ This engine supports UTF-8 as well as some +ARE+ features. The differences with
 and POSIX are highlighted below.
 
 1. UTF-8 strings and patterns are both supported
-2. Supported character classes: +[:alnum:]+, +[:digit:]+ and +[:space:]+
-3. Supported shorthand character classes: +{backslash}w+ = +[:alnum:]+, +{backslash}d+ = +[:digit:],+ +{backslash}s+ = +[:space:]+
-4. Character classes apply to ASCII characters only
+2. All Tcl character classes are supported (e.g. +[:alnum:]+, +[:digit:]+, +[:space:]+), but...
+3. Character classes apply to ASCII characters only
+4. Supported shorthand character classes: +{backslash}w+ = +[:alnum:]+, +{backslash}W+ = +^[:alnum:]+, +{backslash}d+ = +[:digit:],+ +{backslash}D+ = +^[:digit:],+ +{backslash}s+ = +[:space:]+, + +{backslash}S+ = +^[:space:]+
 5. Supported constraint escapes: +{backslash}m+ = +{backslash}<+ = start of word, +{backslash}M+ = +{backslash}>+ = end of word
 6. Backslash escapes may be used within regular expressions, such as +{backslash}n+ = newline, +{backslash}uNNNN+ = unicode
-7. Support for the +?+ non-greedy quantifier. e.g. +*?+
-8. Support for non-capturing parentheses +(?:...)+
-9. Jim Tcl considers that both patterns and strings end at a null character (+\x00+)
+7. Partially supported constraint escapes: +{backslash}A+ = start of string, +{backslash}Z+ = end of string
+8. Support for the +?+ non-greedy quantifier. e.g. +*?+
+9. Support for non-capturing parentheses +(?:...)+
+10. Jim Tcl considers that both patterns and strings end at a null character (+\x00+)
 
 COMMAND RESULTS
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