data file

ranny · Post by **ranny** » Fri Aug 05, 2005 12:42 am

Hello,

I have a file.txt with data and i don't know how to write the data who start with letter "G" (for example). I know open and read the file.

Thx for help

demond · Post by **demond** » Fri Aug 05, 2005 1:22 am

you need to learn at least the basics of Tcl before asking for help with a script; from your question I gather that you don't know a thing about string manipulation (or else you wouldn't be asking how to filter data which starts with a particular letter), so please get back to your Tcl book or/and tcl.tk and learn about [string]

greenbear · Post by **greenbear** » Fri Aug 05, 2005 10:15 am

when you've done what demond said, here's a quick tutorial on how to write to a file.

ranny · Post by **ranny** » Thu Aug 11, 2005 5:02 am

hello,

i have

Code: Select all

[string equal -length [string length $del] $x $del ]

and

Code: Select all

[regexp -all -inline {<td class="row2" align="center"><span class="gensmall">(.+)</span></td>} $body]

it's ok.
but it's possible to make simpler??

demond · Post by **demond** » Thu Aug 11, 2005 1:36 pm

see FAQ forum, "Parsing webpages made easy"

greenbear · Post by **greenbear** » Thu Aug 11, 2005 3:24 pm

"easy" being a relative term

demond · Post by **demond** » Thu Aug 11, 2005 10:53 pm

well yeah hehehe... if you need to parse for just a single or couple of data elements, using tDOM/XPath doesn't make much sense and would be an overkill; however, if you have to implement complex parsing logic and there's good chance for that webpage to change, it would be much easier to go with tDOM and simply adjust XPath as necessary