regex adverb :ignoremark

Documentation for regex adverb :ignoremark, assembled from the following types:

regex adverb :ignorecase

From :ignorecase

(:ignorecase) regex adverb :ignoremark

The :ignoremark or :m adverb instructs the regex engine to only compare base characters, and ignore additional marks such as combining accents:

say so 'a' ~~ rx/ä/;                # OUTPUT: «False» 
say so 'a' ~~ rx:ignoremark /ä/;    # OUTPUT: «True» 
say so '' ~~ rx:ignoremark /o/;    # OUTPUT: «True>