[Javascript] Q on parsing

[Walter Torres]

As an aside, I am trying to keep this as down compatible as possible.

This means no RegExp.

walter


> -----Original Message-----
> From: javascript-admin at LaTech.edu 
> [mailto:javascript-admin at LaTech.edu]On
> Behalf Of Walter Torres
> Sent: Tuesday, July 23, 2002 6:19 PM
> To: Walter Torres
> Cc: javascript at yahoogroups.com; javascript at LaTech.edu
> Subject: [Javascript] Q on parsing
> 
> 
> I am 99% complete on a date format parser.
> 
> (will post when this question is answerd!)
> 
> The last item is how to parse out a substring bracketed by 
> single quotes.
> 
> i.e.:
> 
> I have this var...
> 
>     var format = "EEEE, MMMM dd, yyyy ''G'' 'at' hh:mm:ss a z" ;
> 
> I can walk down this string and pull out "tokens" (same 
> character of 1 or
> more in length: ex: EEEE, hh, z )
> 
> I do it like this...
> 
>    while ( i < intFormatLen )
>    {
>       var token = "";
> 
>       curChar = strFormat.charAt(i);
> 
>       while (( strFormat.charAt(i) == curChar ) && ( i < 
> intFormatLen ))
>          token += strFormat.charAt(i++);
> 
>       result += formatOptions ( token );
>    }
> 
> 
> Now, a double single quote (2 in a row) needs to be grapped 
> and passed on
> as a single token. but not 3 in a row, the third should be part of the
> next token. It needs to grab 2 adjacent at a time.
> 
> If it finds one single quote, it needs to grab all characters until it
> sees and other single quote. Yes, it needs to be able to handle an
> embedded pair of single quotes.
> 
> So, if I have this...
> 
>      EEEE 'is walter''s birthday'
> 
> This should give me 3 tokens
>   1) EEEE
>   2) a SPACE
>   3) is walter's birthday
> 
> I can grab all but #3! :(
> 
> I have been banging my head for 3 days on this one, I just 
> can't see it.
> 
> Help?
> 
> Walter
> 
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