Regular Expressions

[Roman Candle]

It's been ages since I've had to ask for help here, but I've had to swallow my pride and come back begging for this one :D I'm writting an alternate message system, which autosizes itself. Each time the message text is changed, it uses a method to check the final width and height of the window. However, to do this it needs to eliminate the "\001" commands, as these are not displayed. However, I'm really stuck on the regexp to use:
The string to be removed would look like this: "\001"
However, none of these expressions produces a match:
/\00\d/ /\\00\d/ /\00[1-9]/
Could someone explain why? I'm not so good with regular expressions.

 

[Jared]

The string "\001" sees the "\" as backslash-notation. So you have either write '\001' (also single-quoted string) or "\\001".

The regular expression /\\00\d/ would be correct. To erase a range of a string, use the slice! method.

string.slice!(/\\00\d/)

 

[Roman Candle]

The string the message window uses is "\00n". Irritatingly, the expression /\001/ will match the string "\001", but /\00\d/ will not. I've been assuming that there is a particular significance to the format of the string "\001" and carried it over from the default message system, and it's only now that I've hit this hitch. I don't actually understand what the backslash is doing to cause the problem, and whether or not it's in the expression or the string, (or in fact both).