Template:cheatsheet-key: Difference between revisions
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===Key=== | ===Key=== | ||
Based on Perl's [http://www.perl.com/doc/manual/html/pod/perlre.html standard quantifiers]: | |||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| '''bold''' {1} || | | '''bold''' {1} || {{must}} be present exactly once | ||
|- | |- | ||
| ''italic''<nowiki>*</nowiki> || | | ''italic''<nowiki>*</nowiki> || {{optional}}, and {{may}} occur more than once | ||
|- | |- | ||
| + || | | + || {{must}} be present, and {{may}} occur more than once | ||
|- | |- | ||
| ? || | | ? || {{optional}}, but {{must-not}} occur more than once | ||
|- | |- | ||
| [square brackets] || list of common values | | [square brackets] || list of common values | ||
| Line 14: | Line 14: | ||
| (parentheses) || data format | | (parentheses) || data format | ||
|- | |- | ||
| | | # || comment | ||
|- | |||
| ! || awaiting documentation | |||
|} | |} | ||
Latest revision as of 22:11, 20 December 2008
Key
Based on Perl's standard quantifiers:
| bold {1} | MUST be present exactly once |
| italic* | OPTIONAL, and MAY occur more than once |
| + | MUST be present, and MAY occur more than once |
| ? | OPTIONAL, but MUST NOT occur more than once |
| [square brackets] | list of common values |
| (parentheses) | data format |
| # | comment |
| ! | awaiting documentation |