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| author | Bruce Hill <bruce@bruce-hill.com> | 2020-09-28 17:42:38 -0700 |
|---|---|---|
| committer | Bruce Hill <bruce@bruce-hill.com> | 2020-09-28 17:42:38 -0700 |
| commit | 544a88e9d4faa3f7e34316daaa01d2fa14d1d9f6 (patch) | |
| tree | 77c3b3a35d04c7ab31aa5b7461d387ecf2a70b33 /README.md | |
| parent | 54b14a35573aed89670228e5cbfbd820da24aeaf (diff) | |
Added +/*/? postfix operators
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -44,11 +44,13 @@ Pattern | Meaning `\n`, `\033`, `\x0A`, etc. | An escape sequence character `\x00-xFF` | An escape sequence range (byte `0x00` through `0xFF` here) `!pat` | `pat` does not match at the current position -`[pat]` | Zero or one occurrences of `pat` (optional pattern) +`[pat]` or `pat?` | Zero or one occurrences of `pat` (optional pattern) `5 pat` | Exactly 5 occurrences of `pat` `2-4 pat` | Between 2 and 4 occurrences of `pat` (inclusive) `5+ pat` | 5 or more occurrences of `pat` -`0+ pat % sep` | 0 or more occurrences of `pat`, separated by `sep` (e.g. `0+ int % ","` matches `1,2,3`) +`5+ pat % sep` | 5 or more occurrences of `pat`, separated by `sep` (e.g. `0+ int % ","` matches `1,2,3`) +`pat*` `pat* % sep`| 0 or more occurrences of `pat` (optionally separated by `sep`) +`pat+` `pat+ % sep`| 1 or more occurrences of `pat` (optionally separated by `sep`) `<pat` | `pat` matches just before the current position (backref) `>pat` | `pat` matches just in front of the current position (lookahead) `@pat` | Capture `pat` (used for text replacement and backreferences) |