I can't speak as to whether the OP will encounter characters an in their decomposed forms or not, but about 40% of both Hiragana and Katakana have multi-code point decomposed forms. "ば" (U+3070, HIRAGANA LETTER BA) can be written as "は" (U+306F, HIRAGANA LETTER HA) plus combining "゛" (U+3099, COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK).

In reply to Re^2: Unicode: Perl5 equivalent to Perl6's @string.graphemes? by ikegami
in thread Unicode: Perl5 equivalent to Perl6's @string.graphemes? by jonadab

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