Trouble with regex

[Fernando Rodriguez]

Hi,

I'm trying to write a regex that finds whatever is between ${ and } in a text
file.

I tried the following, but it only finds the first occurrence of the pattern:
[color=blue][color=green][color=darkred]
>>> s = """asssdf${ 123}[/color][/color][/color]
dgww${one} ${two}"""[color=blue][color=green][color=darkred]
>>> what = re.compile("\$\ {([^}]*)\}")
>>> m = what.search(s)
>>> m.groups()[/color][/color][/color]
('123',)

What am I doing wrong? O:-)

[anton muhin]

Re: Trouble with regex

Fernando Rodriguez wrote:[color=blue]
> Hi,
>
> I'm trying to write a regex that finds whatever is between ${ and } in a text
> file.
>
> I tried the following, but it only finds the first occurrence of the pattern:
>
>[color=green][color=darkred]
>>>>s = """asssdf${ 123}[/color][/color]
>
> dgww${one} ${two}"""
>[color=green][color=darkred]
>>>>what = re.compile("\$\ {([^}]*)\}")
>>>>m = what.search(s)
>>>>m.groups( )[/color][/color]
>
> ('123',)
>
> What am I doing wrong? O:-)[/color]

Nothing ;) search just finds first match. If you want to find all
non-overlapping matches try finditer:

import re

s = """asssdf${ 123}

dgww${one} ${two}"""

what = re.compile("\$\ {([^}]*)\}")
for m in what.finditer(s ):
print m.groups()

prints:
('123',)
('one',)
('two',)

regards,
anton.

[Jim Shapiro]

Re: Trouble with regex


"Fernando Rodriguez" <frr@easyjob.ne t> wrote in message
news:52p9rvs6av 0dqe59t733o5net cd9t6r7q2@4ax.c om...[color=blue]
> Hi,
>
> I'm trying to write a regex that finds whatever is between ${ and } in a[/color]
text[color=blue]
> file.
>
> I tried the following, but it only finds the first occurrence of the[/color]
pattern:[color=blue]
>[color=green][color=darkred]
> >>> s = """asssdf${ 123}[/color][/color]
> dgww${one} ${two}"""[color=green][color=darkred]
> >>> what = re.compile("\$\ {([^}]*)\}")
> >>> m = what.search(s)
> >>> m.groups()[/color][/color]
> ('123',)
>
> What am I doing wrong? O:-)[/color]

Try:

import re

s = """asssdf${ 123}
dgww${one} ${two}"""
what = re.compile("\$\ {([^}]*)\}") # same as original
m = what.findall(s)
print m
[color=blue]
>regex_test.p y[/color]
['123', 'one', 'two']

HTH

Jim Shapiro