Note: Slip is still evolving, so some behaviours/syntax may change in future updates
`<char> Escape to char (using ` not \, non-alphanumeric only)
abc Concatenation
a|b|c Alternation
(abc) Groups
(?:abc) Noncapturing groups (experimental)
* + ? {n} {,n} {n,} {n,m} Quantifiers (lazy counterparts also available)
[abc] [^abc] Character classes/negated character classes
(?<group>) (?R) Regex recursion (experimental)
Note: -|]^ currently need escaping inside a character class.
(?_(<group>) <regex> ) Length assert; Match <regex> if same length as group (?| <regex> ) Stationary group; Reset movement state after match [pos|neg] Extended char class; Match all pos not in neg
<> Turn left/right 90 degrees
/\ Slip left/right orthogonal to current direction
# No move; Don't move after matching next char
% No slip; Don't perform next slip command
^0 ... ^7 Set match pointer direction to absolute direction (N, NE, S, ..., NW)
7 0 1
\|/
6-.-2
/|\
5 4 3
^* Any octolinear direction (^0|^1|^2|^3|^4|^5|^6|^7)
^+ Any orthogonal direction (^0|^2|^4|^6)
^T Either turn direction (<|>)
$0 ... $7 Anchor N edge/NE corner/E edge/etc. $* Anchor any corner ($1|$3|$5|$7) $+ Anchor any edge ($0|$2|$4|$6) $<lower> Set custom anchor $<upper> Match corresponding custom anchor $^ Match if next movement would put pointer out of bounds
f First match only i Case-insensitive n Number of matches o Overlapping matches p Position of matches r No-repeat v Verbose output
`a Alphabetical (upper/lowercase letter) `c Consonant (upper/lowercase) `d Digit (0-9) `h Hexdigit (0-9a-fA-F) `l Lowercase letter `o Octdigit (0-7) `p Punctuation `s Whitespace (space or tab) `u Uppercase letter `v Vowel (upper/lowercase) `w Word character (a-zA-Z0-9_) `y Vowel with y (upper/lowercase)
Note: Predefined character classes currently cannot be used in regular character classes, and do not yet support Unicode.