On 2015-04-13 01:55, Pippo wrote:
On Sunday, 12 April 2015 20:46:19 UTC-4, Cameron Simpson wrote:
>> >> > > constraint = re.compile(r'(#C\[\w*\]'))
>> >> > > result = constraint.search(content[j],re.MULTILINE)
>> >> > > text.append(result)
>> >> > > print(text)
[...]
>> >> result is empty! Although it should have a content.
[...]
>> > I fixed the syntax error but the result shows:
>> > [None]
>> > [None, None]
[...]
Note that "None" is not "empty", though in this case more or less means what
you think.
You're getting None because the regexp fails to match.
>> Try printing each string you're trying to match using 'repr', i.e.:
>> print(repr(content[j]))
>>
>> Do any look like they should match?
> print(repr(content[j])) gives me the following:
>
>[None]
>'#D{#C[Health] #P[Information] - \n'
[...]
>shouldn't it match "#C[Health]" in the first row?
It looks like it should, unless you have mangled your regular expression. You
mentioned earlier that you fixed the syntax error, but you never actually
recited the line after fixing it. Please cut/paste the _exact_ line where you
compile the regexp as it is now. Superficially I would expect your regexp to
work, but we would like to see it as it current is.
Also note that you can print the regexp's .pattern attribute:
print(constraint.pattern)
as a check that what was compiled is what you intended to compile.
>If not, what is the best way to fetch these items in an array?
What you've got is ok. I would point out that as you're processing each line on
its own you should not need "re.MULTILINE" in your .compile() call.
Cheers,
Cameron Simpson <c...@zip.com.au>
The upside of PHP is that it lets non-programmers create complex
applications. The downside of PHP is that it lets non-programmers create
complex applications. - Elliot Lee
This is the complete code:
import re
import tkinter.filedialog
import readfile
j = 0
text = []
#content = "#C[Health] #P[Information]"
content = readfile.pattread()
while j < len(content):
constraint = re.compile(r'(#C\[\w*\])')
result = constraint.search(content[j])
text.append(result)
print(constraint.pattern)
print(text)
print(repr(content[j]))
j = j+1
This is the result I get:
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>]
'#D{#C[Health] #P[Information] - \n'
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>, None]
'means any information, including #ST[genetic information], \n'
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>, None, None]
'whether #C[oral | (recorded in (any form | medium))], that \n'
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>, None, None, None]
'(1)#C[Is created or received by] a \n'
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>, None, None, None, None]
'#A[health care provider | health plan | public health authority | employer |
life insurer | school | university | or health care clearinghouse]; \n'
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>, None, None, None, None, None]
'(2)#C[Relates to] #C[the past, present, or future physical | mental health |
condition of an individual] | \n'
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>, None, None, None, None, None, None]
'#C[the provision of health care to an individual] | \n'
(#C\[\w*\])
[<_sre.SRE_Match object at 0x10292ee40>, None, None, None, None, None, None,
None]
'#C[the past, present, or future payment for the provision of health care to an
individual].}\n'
The search returns a match object. If you want the text that it found,
use the match object's .group method.
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