генерировать программы для лексических задач (РАЗРАБОТКА) (generate programs for lexical tasks (DEVELOPMENT))
Использование в приложениях (Application usage)
Conforming applications are warned that in the Rules section, an
ERE without an action is not acceptable, but need not be detected
as erroneous by lex. This may result in compilation or runtime
errors.
The purpose of input() is to take characters off the input stream
and discard them as far as the lexical analysis is concerned. A
common use is to discard the body of a comment once the beginning
of a comment is recognized.
The lex utility is not fully internationalized in its treatment
of regular expressions in the lex source code or generated
lexical analyzer. It would seem desirable to have the lexical
analyzer interpret the regular expressions given in the lex
source according to the environment specified when the lexical
analyzer is executed, but this is not possible with the current
lex technology. Furthermore, the very nature of the lexical
analyzers produced by lex must be closely tied to the lexical
requirements of the input language being described, which is
frequently locale-specific anyway. (For example, writing an
analyzer that is used for French text is not automatically useful
for processing other languages.)
