Re: Best way to extract from regex in if statement

Paul McGuire wrote: > On Apr 3, 9:26 pm, Paul Rubin wrote: > > bwgoudey writes: > > > elif re.match("^DATASET:\s*(.+) ", line): > > >         m=re.match("^DATASET:\s*(.+) ", line) > > >         print m.group(1)) > > > > Sometimes I like to make a special class that

Re: Best way to extract from regex in if statement

On Apr 3, 9:26 pm, Paul Rubin wrote: > bwgoudey writes: > > elif re.match("^DATASET:\s*(.+) ", line): > >         m=re.match("^DATASET:\s*(.+) ", line) > >         print m.group(1)) > > Sometimes I like to make a special class that saves the result: > >   class Reg(o

Re: Best way to extract from regex in if statement

Or in case you want to handle each regexp differently, you can construct a dict {regexp : callback_function} that picks the right action depending on which regexp matched. One word of caution: dicts are unsorted, so if more than one regexp can match a given line, they either need to map to th

Re: Best way to extract from regex in if statement

bwgoudey writes: > elif re.match("^DATASET:\s*(.+) ", line): > m=re.match("^DATASET:\s*(.+) ", line) > print m.group(1)) Sometimes I like to make a special class that saves the result: class Reg(object): # illustrative code, not tested def match(self, pattern, line):

Re: Best way to extract from regex in if statement

of the duplication but I can't think of a nicer of way > > of doing this that will allow for a lot of these sorts of cases. Any > > suggestions? > > -- > > View this message in > > context:http://www.nabble.com/Best-way-to-extract-from-regex-in-i

Re: Best way to extract from regex in if statement

bwgoudey wrote: I have a lot of if/elif cases based on regular expressions that I'm using to filter stdin and using print to stdout. Often I want to print something matched within the regular expression and the moment I've got a lot of cases like: ... elif re.match("^DATASET:\s*(.+) ", line):

Re: Best way to extract from regex in if statement

of these sorts of cases. Any > suggestions? > -- > View this message in > context:http://www.nabble.com/Best-way-to-extract-from-regex-in-if-statement-... > Sent from the Python - python-list mailing list archive at Nabble.com. How about something like: your_regexes = [ re.co

Best way to extract from regex in if statement

: m=re.match("^DATASET:\s*(.+) ", line) print m.group(1)) which is ugly because of the duplication but I can't think of a nicer of way of doing this that will allow for a lot of these sorts of cases. Any suggestions? -- View this message in context: http://www.