Hi,
'\b' only match the boundary between alphanumerical char and
nonalphanumeric al char. I'm wonder if there is a generic metacharacter
to match the boundary between any non intersected char set defined in
regex and its complement.
For example, I have a few non intersected char sets [a-zA-Z_0-9], [:]
and [\s], and lets call the new metacharactor \m.
r"abc\m" would be the same as r"abc\b"
r"abc:\m' would match "abc:" in r"abc:xy" but not "abc::xy"
r"a \m" (with one space) would match "a " (with one space) in "a abc"
but not "a abc" (with two spaces).
I would like that I have the flexibility to define more non
intersected char sets, while I don't want change the regex that I have
written.
Thanks,
Peng
1  1002 
On Jul 24, 6:48*pm, Peng Yu <PengYu...@gmai l.comwrote:
Hi,
'\b' only match the boundary between alphanumerical char and
nonalphanumeric al char. I'm wonder if there is a generic metacharacter
to match the boundary between any non intersected char set defined in
regex and its complement.
For example, I have a few non intersected char sets [a-zA-Z_0-9], [:]
and [\s], and lets call the new metacharactor \m.
r"abc\m" would be the same as r"abc\b"
r"abc:\m' would match "abc:" in r"abc:xy" but not "abc::xy"
r"a \m" (with one space) would match "a " (with one space) in "a abc"
but not "a *abc" (with two spaces).
I would like that I have the flexibility to define more non
intersected char sets, while I don't want change the regex that I have
written.
Interesting idea. It could be added, but how much demand is there for
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