RegexCheatSheet: Align automatically this time.
Jag Talon
parent
945bde9baf
commit
f4937bd29c
|
|
@ -89,84 +89,84 @@ our %categories = (
|
|||
|
||||
# Symbols and their explanation/description
|
||||
our %syntax_map = (
|
||||
'.' => 'Any character except newline (\n)',
|
||||
'(a|b)' => 'a or b',
|
||||
'(...)' => 'Group',
|
||||
'(?:...)' => 'Passive (non-capturing) group',
|
||||
'[abc]' => 'Single character (a or b or c)',
|
||||
'[^abc]' => 'Single character (not a or b or c)',
|
||||
'[a-q]' => 'Single character range (a or b ... or q)',
|
||||
'[A-Z]' => 'Single character range (A or B ... or Z)',
|
||||
'[0-9]' => 'Single digit from 0 to 9',
|
||||
'^' => "Start of string or line",
|
||||
'\A' => "Start of string",
|
||||
'$' => "End of string or line",
|
||||
'\Z' => "End of string",
|
||||
'\b' => 'Word boundary',
|
||||
'\B' => 'Not word boundary',
|
||||
'\<' => 'Start of word',
|
||||
'\>' => 'End of word',
|
||||
'\c' => 'Control character',
|
||||
'\s' => 'Whitespace',
|
||||
'\S' => 'Not Whitespace',
|
||||
'\d' => 'Digit',
|
||||
'\D' => 'Not digit',
|
||||
'\w' => 'Word',
|
||||
'\W' => 'Not Word',
|
||||
'\x' => 'Hexadecimal digit',
|
||||
'\O' => 'Octal Digit',
|
||||
'[:upper:]' => 'Uppercase letters [A-Z]',
|
||||
'[:lower:]' => 'Lowercase letters [a-z]',
|
||||
'[:alpha:]' => 'All letters [A-Za-z]',
|
||||
'[:alnum:]' => 'Digits and letters [A-Za-z0-9]',
|
||||
'[:digit:]' => 'Digits [0-9]',
|
||||
'[:xdigit:]'=> 'Hexadecimal digits [0-9a-f]',
|
||||
# '[:punct:]' => 'Punctuation [\]\[!"#$%&'."'".'()*+,./:;<=>?@\^_`{|}~-]',
|
||||
'[:punct:]' => 'Punctuation',
|
||||
'[:blank:]' => 'Space and tab [ \t]',
|
||||
'[:space:]' => 'Blank characters [ \t\r\n\v\f]',
|
||||
'[:cntrl:]' => 'Control characters [\x00-\x1F\x7F]',
|
||||
'[:graph:]' => 'Printed characters [\x21-\x7E]',
|
||||
'[:print:]' => 'Printed characters and spaces [\x20-\x7E]',
|
||||
'[:word:]' => 'Digits, letters and underscore [A-Za-z0-9_]',
|
||||
'.' => 'Any character except newline (\n)',
|
||||
'(a|b)' => 'a or b',
|
||||
'(...)' => 'Group',
|
||||
'(?:...)' => 'Passive (non-capturing) group',
|
||||
'[abc]' => 'Single character (a or b or c)',
|
||||
'[^abc]' => 'Single character (not a or b or c)',
|
||||
'[a-q]' => 'Single character range (a or b ... or q)',
|
||||
'[A-Z]' => 'Single character range (A or B ... or Z)',
|
||||
'[0-9]' => 'Single digit from 0 to 9',
|
||||
'^' => "Start of string or line",
|
||||
'\A' => "Start of string",
|
||||
'$' => "End of string or line",
|
||||
'\Z' => "End of string",
|
||||
'\b' => 'Word boundary',
|
||||
'\B' => 'Not word boundary',
|
||||
'\<' => 'Start of word',
|
||||
'\>' => 'End of word',
|
||||
'\c' => 'Control character',
|
||||
'\s' => 'Whitespace',
|
||||
'\S' => 'Not Whitespace',
|
||||
'\d' => 'Digit',
|
||||
'\D' => 'Not digit',
|
||||
'\w' => 'Word',
|
||||
'\W' => 'Not Word',
|
||||
'\x' => 'Hexadecimal digit',
|
||||
'\O' => 'Octal Digit',
|
||||
'[:upper:]' => 'Uppercase letters [A-Z]',
|
||||
'[:lower:]' => 'Lowercase letters [a-z]',
|
||||
'[:alpha:]' => 'All letters [A-Za-z]',
|
||||
'[:alnum:]' => 'Digits and letters [A-Za-z0-9]',
|
||||
'[:digit:]' => 'Digits [0-9]',
|
||||
'[:xdigit:]' => 'Hexadecimal digits [0-9a-f]',
|
||||
# '[:punct:]' => 'Punctuation [\]\[!"#$%&'."'".'()*+,./:;<=>?@\^_`{|}~-]',
|
||||
'[:punct:]' => 'Punctuation',
|
||||
'[:blank:]' => 'Space and tab [ \t]',
|
||||
'[:space:]' => 'Blank characters [ \t\r\n\v\f]',
|
||||
'[:cntrl:]' => 'Control characters [\x00-\x1F\x7F]',
|
||||
'[:graph:]' => 'Printed characters [\x21-\x7E]',
|
||||
'[:print:]' => 'Printed characters and spaces [\x20-\x7E]',
|
||||
'[:word:]' => 'Digits, letters and underscore [A-Za-z0-9_]',
|
||||
'?=' => 'Lookahead assertion',
|
||||
'?!' => 'Negative lookahead',
|
||||
'?<=' => 'Lookbehind assertion',
|
||||
'?!= or ?<!'=> 'Negative lookbehind',
|
||||
'?>' => 'Once-only Subexpression',
|
||||
'?()' => 'Condition [if then]',
|
||||
'?()|' => 'Condition [if then else]',
|
||||
'?#' => 'Comment',
|
||||
'*' => '0 or more',
|
||||
'+' => '1 or more',
|
||||
'?' => '0 or 1 (optional)',
|
||||
'{3}' => 'Exactly 3',
|
||||
'{3,}' => '3 or more',
|
||||
'{2,5}' => '2, 3, 4 or 5',
|
||||
'\\' => 'Escape following character',
|
||||
'\Q' => 'Begin literal sequence',
|
||||
'\E' => 'End literal sequence',
|
||||
'\n' => 'New line',
|
||||
'\r' => 'Carriage return',
|
||||
'\t' => 'Tab',
|
||||
'\v' => 'Vertical tab',
|
||||
'\f' => 'Form feed',
|
||||
'\ooo' => 'Octal character ooo',
|
||||
'\xhh' => 'Hex character hh',
|
||||
'//g' => 'Global Match (all occurrences)',
|
||||
'//i' => 'Case-insensitive',
|
||||
'//m' => 'Multiple line',
|
||||
'//s' => 'Treat string as single line',
|
||||
'//x' => 'Allow comments and whitespace',
|
||||
'//e' => 'Evaluate replacement',
|
||||
'//U' => 'Ungreedy pattern',
|
||||
'$n' => 'n-th non-passive group',
|
||||
'$2' => '"xyz" in /^(abc(xyz))$/',
|
||||
'$1' => '"xyz" in /^(?:abc)(xyz)$/',
|
||||
'$`' => 'Before matched string',
|
||||
'?!' => 'Negative lookahead',
|
||||
'?<=' => 'Lookbehind assertion',
|
||||
'?!= or ?<!' => 'Negative lookbehind',
|
||||
'?>' => 'Once-only Subexpression',
|
||||
'?()' => 'Condition [if then]',
|
||||
'?()|' => 'Condition [if then else]',
|
||||
'?#' => 'Comment',
|
||||
'*' => '0 or more',
|
||||
'+' => '1 or more',
|
||||
'?' => '0 or 1 (optional)',
|
||||
'{3}' => 'Exactly 3',
|
||||
'{3,}' => '3 or more',
|
||||
'{2,5}' => '2, 3, 4 or 5',
|
||||
'\\' => 'Escape following character',
|
||||
'\Q' => 'Begin literal sequence',
|
||||
'\E' => 'End literal sequence',
|
||||
'\n' => 'New line',
|
||||
'\r' => 'Carriage return',
|
||||
'\t' => 'Tab',
|
||||
'\v' => 'Vertical tab',
|
||||
'\f' => 'Form feed',
|
||||
'\ooo' => 'Octal character ooo',
|
||||
'\xhh' => 'Hex character hh',
|
||||
'//g' => 'Global Match (all occurrences)',
|
||||
'//i' => 'Case-insensitive',
|
||||
'//m' => 'Multiple line',
|
||||
'//s' => 'Treat string as single line',
|
||||
'//x' => 'Allow comments and whitespace',
|
||||
'//e' => 'Evaluate replacement',
|
||||
'//U' => 'Ungreedy pattern',
|
||||
'$n' => 'n-th non-passive group',
|
||||
'$2' => '"xyz" in /^(abc(xyz))$/',
|
||||
'$1' => '"xyz" in /^(?:abc)(xyz)$/',
|
||||
'$`' => 'Before matched string',
|
||||
q{$'} => 'After matched string',
|
||||
'$+' => 'Last matched string',
|
||||
'$&' => 'Entire matched string',
|
||||
'$+' => 'Last matched string',
|
||||
'$&' => 'Entire matched string',
|
||||
);
|
||||
|
||||
sub are_valid_char_classes($$) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue