directory Extracts the directory name of an URL/file path
empty Have the variable return an empty string always
ext Extracts the file extension (without dot) of an URL/file path
filename Returns the file name (with extension) from a file path
formatfilesize Nicely formats a file size (given in bytes)
multireplace Replaces multiple subjects within a string. Usage
multireplacei Replaces multiple subjects within a string (case insensitive). Usage
regex Returns the value which is matched by the regular expression (first argument). If groups exist, you can also select a group's value with the second argument. 0 is the whole match, 1 the first group, 2 the second group and so on.
regexreplace Replaces the content matched with the regular expression (first argument) with the second argument. The second argument may contain $n as references to groups of the regular expression.
replace Replaces all occurrences of argument1 with argument2
trim Removes all whitespace at the start and end of a variable. If an argument is given, all characters of that string will be removed.
trimstart Like trim, but only for the beginning of a word
trimend Like trim, but only for the end of a word
toupper Outputs only uppercase characters
tolower Outputs only lowercase characters
split Splits the variable content at each occurrence of the first argument and returns the part of the string with the number specified in the second argument (zero based)
startuppath Returns the startup path of the current Ketarin instance (without exe file)