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0
Regular Expression
Python
r"
(?:
[
\(\)
eA
-
Z
]
[
a
-
z
]
*
(?:
_
\{
?
?
\d
*
\}
?
(?:
(?:
_
\d
)?
)*
)?
)+
(?:
\^\{
?
?
\d
*
[
\+
-
]
?
\}
?
)?
"
g
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Description
Updated: Identifies chemical formulae written with latex
Submitted by
anonymous
-
8 years ago