"repeating pair" regex

[Thor]

On Monday, 21 May 2012 at 13:06:45 UTC, Dmitry Olshansky wrote:
> On 21.05.2012 17:05, Dmitry Olshansky wrote:
>> On 21.05.2012 16:42, Thor wrote:
>>> Hi,
>>>
>>> I tried something like this...
>>> auto m = match("a=42 b=32 c=22", regex(`^(?: \s* (\w+)=(\d+) 
>>> )+$`, `x`));
>>>
>>> This works fine...
>>> `^(?: \s* (\w+)=(\d+) )+$`
>>> ... and if I duplicate the string x times, it also works...
>>>
>>> But I'm hoping to parse a variable number of these 'pairs'... 
>>> so I tried
>>> grouping the pairs in (?:)+ but this way it saves only the 
>>> last pair?
>>>
>>> Anyone got an idea?
>>>
>> Yes, just use the global flag and drop ( )+.
>>
>> Then this foreach ought to save the day:
>> foreach( m; match(..., `\s* (\w+)=(\d+) `, `gx`))
>
> Bleh. Fixed:
> foreach( m; match(..., regex(`\s* (\w+)=(\d+) `, `gx`)))
>
>
>> {
>> //some stuff with m[1] & m[2]
>> }
>>
>> Throw in some experiment w.r.t. the end of line and you should 
>> be fine.

Great, thanks for your quick support. :)

I actually did test `gx` but I failed to realise that I now have 
to iterate over matches as well as captures... which makes 
perfect sense when I pause to think about it.