Re: regex: force entire string to match

2012-01-31 Thread bearophile 
NewName:

> Hello all.
> I want to write a regex to check if a whole string is a number.

Also:

import std.stdio, std.string, std.array;
void main() {
string s = "123";
assert(s.removechars("0-9").empty);
}

Bye,
bearophile

Re: regex: force entire string to match

2012-01-31 Thread NewName 
> You want to match the beginning and end of the input as well:
> "^[0-9]+$"

Thanks.

Re: regex: force entire string to match

2012-01-31 Thread Justin Whear 
On Tue, 31 Jan 2012 16:29:43 +, NewName wrote:

> Hello all.
> I want to write a regex to check if a whole string is a number. With my
> current regex("[0-9]+") numbers will be carved out of things like
> "aaa456" (hit: 456) and I circumvent this by checking the lengths for
> inequality, which is stupid. My regex is surely missing something?
> 
> Thank you for reading.

You want to match the beginning and end of the input as well:
"^[0-9]+$"

Re: regex: force entire string to match

2012-01-31 Thread Trass3r 

I want to write a regex to check if a whole string is a number.
With my current regex("[0-9]+") numbers will be carved out of things like
"aaa456" (hit: 456) and I circumvent this by checking the lengths for
inequality, which is stupid. My regex is surely missing something?


Try ^ and $ if applicable. These match start and end of a line.

regex: force entire string to match

2012-01-31 Thread NewName 
Hello all.
I want to write a regex to check if a whole string is a number.
With my current regex("[0-9]+") numbers will be carved out of things like
"aaa456" (hit: 456) and I circumvent this by checking the lengths for
inequality, which is stupid. My regex is surely missing something?

Thank you for reading.