Lines Matching refs:letters

855 In the C locale, this matches any @acronym{ASCII} letters or digits.
982 special sequence made of a backslash and one of the letters
2097 The approach is to map numbers to letters, kind of an abacus
2110 rotate letters so that tens become @samp{a}s, and so on
2111 until no more letters remain.
3138 When caseless matching is set, any letters in a class
3171 @code{[\000-\037]}. If a range that includes letters is used when
3172 caseless matching is set, it matches the letters in either
3208 Matches letters and digits
3211 Matches letters
3226 Matches lower case letters
3232 Matches printing characters, excluding letters and digits
3238 Matches upper case letters
3268 a sequence of Perl option letters enclosed between @code{(?}
3269 and @code{)}. The option letters must be lowercase.
3378 option letters may appear between the @code{?} and the
3606 case of letters is relevant. For example,
4009 letters and @var{dd} are digits); otherwise it is matched against