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:

s = """asssdf${123} dgww${one} ${two}"""
what = re.compile("\$\{([^}]*)\}")
m = what.search(s)
m.groups()

('123',)

What am I doing wrong? O

 

[anton muhin]

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:


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

what = re.compile("\$\{([^}]*)\}")
m = what.search(s)
m.groups()

('123',)

What am I doing wrong? O

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]

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:

s = """asssdf${123} dgww${one} ${two}"""
what = re.compile("\$\{([^}]*)\}")
m = what.search(s)
m.groups()

('123',)

What am I doing wrong? O

Try:

import re

s = """asssdf${123}
dgww${one} ${two}"""
what = re.compile("\$\{([^}]*)\}") # same as original
m = what.findall(s)
print m

regex_test.py

['123', 'one', 'two']

HTH

Jim Shapiro