Hi all
After many years of head-scratching trying to get to grips with Regular
Expressions, I've come to a point in a project where I must utilise
their power but I'm hitting brick walls already.
I've writing a typography parser to convert standard keyboard-inputted
characters into their typographical counterparts (quotation marks into
curly quotes, proper Em and En dashes, etc.). I think I can identify
characters based on patterns but I can't properly replace them.
For example, I want to change a standard keyboard dash (the one paired
with the underscore) into an Em dash when it's sandwiched between two
numbers. Let's say we have in our string
45-78
I can successfully identify that dash with the pattern
[0-9]-[0-9]
but the string returned will be
5-7
so when I go to replace with my Em dash, it replaces the whole found
string, not just the dash, giving
4—8
when I want
45—78
Obviously there's something big time I'm missing, or is my pattern
incorrect? I want to identify a dash that is preceded and succeeded by a
number, and change the dash only.
Any help out there?
MOU
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