Differentiate between ',' and '.'

[mmadia]

Currently (hrev43937) DeskCalc treats ',' and '.' as decimal points. This leads to parse errors when pasting dollar amounts -- e.g., $1,234.56 or €1.234.56. Once the characters are differentiated based upon the current locale, the numeric seperator could be automatically stripped out, leaving just the optional decimal point.

[jscipione]

I am gonna try to tackle this one.

[jscipione]

I tried to tackle this, but, the Interface Kit does not provide this setting so solving this bug is a bit more complicated. I am releasing this ticket to be picked up by someone more interested.

[X512]

It can be simply implementing in following way. If both «.» and «,» are present in number than «,» will be ignored. Another idea is use only last «.» or «,» as decimal point, ignoring others.

[dsizzle]

this should be fixed with ​https://review.haiku-os.org/c/haiku/+/4965 and ​https://review.haiku-os.org/c/haiku/+/5338, which made DeskCalc locale-aware.