(Obsolete) The regex_syntax module, shown in Example 14-35, contains a bunch of flags that can be used to
change the behavior of the regex regular expression
module.
Example 14-35. Using the regex_syntax Module
File: regex-syntax-example-1.py
import regex_syntax
import regex
def compile(pattern, syntax):
syntax = regex.set_syntax(syntax)
try:
pattern = regex.compile(pattern)
finally:
# restore original syntax
regex.set_syntax(syntax)
return pattern
def compile_awk(pattern):
return compile(pattern, regex_syntax.RE_SYNTAX_AWK)
def compile_grep(pattern):
return compile(pattern, regex_syntax.RE_SYNTAX_GREP)
def compile_emacs(pattern):
return compile(pattern, regex_syntax.RE_SYNTAX_EMACS)..................Content has been hidden....................
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