Advanced searching with regular expressions

Regular expressions, or wild-cards, can be used in more complicated searches:

put 0 after the search term to retrieve all matches to a grapheme regardless of its numerical index; for instance dug0 will find all occurrences of dug, dug₃, dug₄, etc:

a regular expression only modifies one grapheme; to search for any lah followed by any lah you must repeat it: lah0~lah0:

a period (.) matches any character; for instance udu. finds both udug and udun:

a set of characters in square brackets matches any character in the set; for instance [aeiu]l finds all occurrence of al, el, il, and ul:

ranges can be given with hyphens between the characters; for instance, ta[b-q] finds all occurrences of tab, tag, tah, tak, tal, tam, tan but not tar, tas, tac:

you can negate the entire set with the caret character (^); for instance, [^aeiou] matches any non-vowel
an asterisk (*) matches zero or more occurrences of the preceding character, set or range; for instance, [0-9]* matches zero or more digits (the regular expression 0 on graphemes is just a shorthand for [0-9]*)
a plus (+) matches one or more occurrences of the preceding character, set or range; for instance, [0-9]+ matches one or more digits

Page created on 29.iii.2002 by ER. Last revised on 12.iv.2002 by ER.