| Author |
|
TonyNo
Moderator Group
Joined: December 05 2001
Location: United States
Online Status: Offline
Posts: 2889
|
| Posted: June 28 2008 at 09:02 | IP Logged
|
|
|
Having troubles here.
Code:
| ph_regexdiff('<description><![CDATA[~128~129~255<description><![CDATA[~128~129~255<description><![CDATA[~128~129~255<description><![CDATA[~128~129',']]></',"{RSS WX}", 1, 2) |
|
|
I've tried escaping the brackets with no change.
Here is a chunk of the string being searched...
Code:
<description><![CDATA[
Today - Partly sunny. Scattered showers and thunderstorms in the afternoon. Highs in the upper 70s. West winds 10 to 15 mph. Chance of precipitation 50 percent.
]]></description |
|
|
|
| Back to Top |
|
| |
BeachBum
Super User
Joined: April 11 2007
Location: United States
Online Status: Offline
Posts: 1880
|
| Posted: June 28 2008 at 20:33 | IP Logged
|
|
|
Tony, I played with this but don’t understand why the multiple <description><![CDATA[~128~129~255 in the first expression. I was able to get something, but not what you probably are looking for, by putting brackets around the first expression without the CR + LF.
ph_regexdiff('[<description><![CDATA',']]></',"{RSS WX}", 1, 2)
The bracket seems to be the problem.
__________________
Pete - X10 Oldie
|
| Back to Top |
|
| |
TonyNo
Moderator Group
Joined: December 05 2001
Location: United States
Online Status: Offline
Posts: 2889
|
| Posted: June 29 2008 at 00:14 | IP Logged
|
|
|
The multiples are to get to the data I'm looking for, four description tags down. This is an RSS page I'm parsing. I can't recall if that worked before, or if the brackets are new. Thanks for checking.
|
| Back to Top |
|
| |
jbbtex
Senior Member
Joined: February 15 2007
Location: United States
Online Status: Offline
Posts: 181
|
| Posted: June 29 2008 at 11:22 | IP Logged
|
|
|
I'm with Pete on the brackets, but I also found that the < before 
Joined: June 29 2001
Location: United States
Online Status: Offline
Posts: 4447
|
| Posted: June 30 2008 at 11:33 | IP Logged
|
|
|
Tony,
Try this:
Code:
| ph_regexdiff1('<description><!' + '\[' + 'CDATA' + '\[','\]\]></',ph_getglobal_s("RSS WX"),1,4,0,0,0) |
|
|
The ph_regexdiff1 allows you specify the "occurrence" which is the 4th one in your sample. This way you don't have to do the multiple repeats. I also broke out the '[' so there is no way it can be interpreted as a system variable during variable substitution. I also escaped the brackets as that is necessary as well for the regex to function. I used the ph_getglobal_s instead of variable substitution since it's possible that the substitution could be large and could contain embedded double quotes which would throw the function evaluation off. Last, I didnt do the cr/lf substitution since this will always be slower and is better if it can be avoided. This means that the result will contain the cr/lf which you probably dont want but a simple wrapping of the result in a ph_replaceall(...,"~r~n","") will take care of this.
Let me know how this works for you.
Dave.
|
| Back to Top |
|
| |
TonyNo
Moderator Group
Joined: December 05 2001
Location: United States
Online Status: Offline
Posts: 2889
|
| Posted: June 30 2008 at 13:41 | IP Logged
|
|
|
Thanks for the occurrence tip!
Still no go, though. 
|
| Back to Top |
|
| |
jbbtex
Senior Member
Joined: February 15 2007
Location: United States
Online Status: Offline
Posts: 181
|
| Posted: July 01 2008 at 17:44 | IP Logged
|
|
|
Code:
| ph_regexdiff1('CDATA' + '\[','\]',ph_getsystemvar("LOCAL1"),1,4,0,0,0) |
|
|
I figured you were using WU RSS feed and I had some free time. I used a local variable just so I didn't have to create a GV.
This returns just the text of the forecast, but there is a CR/LF and TAB at the beginning and a CR/LF at the end.
If I tried to add anything before CDATA or after the first square bracket following the forecast, it returned nothing.
Edited by jbbtex - July 01 2008 at 17:46
__________________
Brady
"Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." - Gen. George S. Patton
|
| Back to Top |
|
| |
TonyNo
Moderator Group
Joined: December 05 2001
Location: United States
Online Status: Offline
Posts: 2889
|
| Posted: July 01 2008 at 19:50 | IP Logged
|
|
|
Interesting. This doesn't even work for me. Are you running the alpha?
|
| Back to Top |
|
| |
jbbtex
Senior Member
Joined: February 15 2007
Location: United States
Online Status: Offline
Posts: 181
|
| Posted: July 01 2008 at 20:12 | IP Logged
|
|
|
Nope.
__________________
Brady
"Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." - Gen. George S. Patton
|
| Back to Top |
|
| |
TonyNo
Moderator Group
Joined: December 05 2001
Location: United States
Online Status: Offline
Posts: 2889
|
| Posted: July 01 2008 at 23:44 | IP Logged
|
|
|
Ah! Maybe a clue!
|
| Back to Top |
|
| |
TonyNo
Moderator Group
Joined: December 05 2001
Location: United States
Online Status: Offline
Posts: 2889
|
| Posted: July 25 2008 at 12:46 | IP Logged
|
|
|
Loaded up the latest alpha and I'm making progress. This is working now...
Code:
| ph_regexdiff1('<description><!' + '\[' + 'CDATA' + '\[','\]\]></',"[LOCAL1]",1,3,0,0,0) |
|
|
The third one works, the fourth doesn't. 
|
| Back to Top |
|
| |
Active Topics 
Memberlist 
Search 
Help
Register 
Login
PowerHome Messageboard : PowerHome Programming
Topic: RegEx Trouble
