Você procurou por: sequences (Coreano - Inglês)

each pair of escape sequences partitions the complete set of characters into two disjoint sets. any given character matches one, and only one, of each pair.
an alternative description is that a subpattern of this type matches the string of characters that an identical standalone pattern would match, if anchored at the current point in the subject string.

returns a string in which the sequences with percent (%) signs followed by two hex digits have been replaced with literal characters. for example, the string
for example, the string

the functions in this module try to guess the content type and encoding of a file by looking for certain magic byte sequences at specific positions within the file. while this is not a bullet proof approach the heuristics used do a very good job.
while this is not a bullet proof approach the heuristics used do a very good job.

these character type sequences can appear both inside and outside character classes. they each match one character of the appropriate type. if the current matching point is at the end of the subject string, all of them fail, since there is no character to match.
consider a simple pattern such as abcd$consider a simple pattern such as abcd$ when applied to a long string which does not match.

a multi-byte character encoding represents single character with consecutive bytes. some character encoding has shift(escape) sequences to start/end multi-byte character strings. therefore, a multi-byte character string may be destroyed when it is divided and/or counted unless multi-byte character encoding safe method is used. this module provides multi-byte character safe string functions and other utility functions such as conversion functions.
a multi-byte character encoding represents single character with consecutive bytes.