kicad-developers team mailing list archive

[Michael Steinberg <michsteinb@xxxxxxxxx>]

> > It is similar to a string comparison (for string sorting) but unlike the usual strncmp() or
> > strncasecmp() functions, when digits are encountered in a string, they are converted to a number and
> > this is the number value which is taken in account for comparison.
> I've written my own back then for the pin table, factored out into
> eeschema/pin_number.cpp. This should be merged with the other
> implementations then in the same process, and possibly generalized
> (there is special treatment of "V" as a decimal point if it is placed
> between numbers, for example, that may not always be appropriate).
Okay, I came up with a solution for which I'm not so sure if it would be 
generally accepted: http://pastebin.com/Y7rVzHV1
It should compile as is.
The big part of that code is made off the class CONST_WX_STRING_VIEW, 
which does nothing more than encapsulate a pair of wxString iterators, 
dereferencing yields the beginning character, incrementing increments 
the begin iterator etc. like in "ranges". I found such a range helper 
immensely helpful for parsing generally, but it might be a bit bulky to 
include only for StrNumCmp.
Simon, I tried to mimic the behaviour of your function, see the below 
the comment "Gyros-Mode", I doubt that the float-parsing is particularly 
clever however. Feel free to drop me compatible code that I could use 
instead.

Cheers!
Michael