diff options
| author | Peter Thoeny <web-hurd@gnu.org> | 2000-08-23 06:58:32 +0000 |
|---|---|---|
| committer | Peter Thoeny <web-hurd@gnu.org> | 2000-08-23 06:58:32 +0000 |
| commit | 8c305042c627a97e521be6585625127df63b98d6 (patch) | |
| tree | b3096bdfab16a850cceeead2913775d3831e070b /TWiki | |
| parent | 7e7434d10b18b396d590800b1f85cf3aa5994f29 (diff) | |
none
Diffstat (limited to 'TWiki')
| -rw-r--r-- | TWiki/RegularExpression.mdwn | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/TWiki/RegularExpression.mdwn b/TWiki/RegularExpression.mdwn index db340de9..f450744c 100644 --- a/TWiki/RegularExpression.mdwn +++ b/TWiki/RegularExpression.mdwn @@ -1,4 +1,6 @@ -Regular expressions allow more specific queries then a simple query. +Regular expressions (REs), unlike simple queries, allow you to search for text which matches a particular pattern. + +REs are similar to (but more poweful than) the "wildcards" used in the command-line interfaces found in operating systems such as Unix and MS-DOS. REs are used by sophisticated search engines, as well as by many Unix-based languages and tools ( e.g., `awk`, `grep`, `lex`, `perl`, and `sed` ). **Examples** |