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URL-Query

 [1/9] from: D:Weyand:gmx at: 25-Feb-2005 10:42


Hi list, does anybody know a workaround to handle URIs with a escape character ^ like http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d&ignore=.csv within REBOL?
>> read
http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d&ignore=.csv ** User Error: URL error: http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d&ign ore=.csv ** Near: read http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d&ignore=.csv I need your advice and help. Regards Dirk -- DSL Komplett von GMX +++ SupergŁnstig und stressfrei einsteigen! AKTION "Kein Einrichtungspreis" nutzen: http://www.gmx.net/de/go/dsl

 [2/9] from: SunandaDH:aol at: 25-Feb-2005 5:08


Dirk:
> does anybody know a workaround to handle URIs with a escape character ^ > like
escape it as %5E Keep it as a string until you need it: u: {http://ichart.yahoo.com/table.csv?s=%5eDJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d&ignore=.csv} read to-url u == {Date,Open,High,Low,Close,Volume,Adj. Close* 24-Feb-05,10672.24,10779.39,10612.24,10748.79,15187500,10748.79 23-Feb-05,10609.28,... [snip] Sunanda.

 [3/9] from: D:Weyand:gmx at: 25-Feb-2005 11:56


Thanks Sunanda, :-) -- Lassen Sie Ihren Gedanken freien Lauf... z.B. per FreeSMS GMX bietet bis zu 100 FreeSMS/Monat: http://www.gmx.net/de/go/mail

 [4/9] from: hallvard:ystad:oops-as:no at: 25-Feb-2005 12:50


Replace the "^" with "^^". You may want to look at my url-handler script: http://www.rebol.org/cgi-bin/cgiwrap/rebol/view-script.r?color=yes&script=url-handler.r I'll put the "^^" trick into it shortly. HY Dixit Dirk Weyand (10.42 25.02.2005):

 [5/9] from: Izkata:Comcast at: 25-Feb-2005 6:00


Didn't work when I tried..... -Izzy Boy

 [6/9] from: hallvard:ystad:oops-as:no at: 25-Feb-2005 13:05


Thinking about it, this escaping needs to be done before you pass the string to the url-handler, so don't wait up for an update... HY Dixit Hallvard Ystad (12.50 25.02.2005):

 [7/9] from: hallvard:ystad:oops-as:no at: 25-Feb-2005 22:44


Sorry, my fault. You should, of course, replace the "^" with "%5E" ! Save the original URL to a file called "url" and then do this: a: read %url print read to-url replace/all a "^^" "%5E" Works overe here, should work fine for you too. HY Dixit Izkata (13.00 25.02.2005):
>Didn't work when I tried..... > -Izzy Boy
<<quoted lines omitted: 8>>
>> You may want to look at my url-handler script: >> http://www.rebol.org/cgi-bin/cgiwrap/rebol/view-script.r?color=yes&script=

 [8/9] from: antonr:lexicon at: 26-Feb-2005 15:40


I don't see the need to save to and read from a file. You can do it all in memory, eg:
>> url:
http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d &ignore=.csv == http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d &ignore=.csv
>> url2: copy url
== http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d &ignore=.csv
>> replace/all url2 "^^" "%5E"
== http://ichart.yahoo.com/table.csv?s=%5EDJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g =d&ignore=.csv
>> read url2
== {Date,Open,High,Low,Close,Volume,Adj. Close* 25-Feb-05,10748.42,10871.53,10698.32,10841.60,15236800,10841.60 24-Feb-05,10672.24,... Anton.

 [9/9] from: hallvard:ystad-oops:as:no at: 26-Feb-2005 13:16


Dixit Anton Rolls (05.40 26.02.2005):
>I don't see the need to save to and read from a file. >You can do it all in memory [...]
Of course. But make sure you don't serve to the rebol scanner a string that will be scanned before the URL is constructed. This is OK:
>> url: http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e==
25&f=2005&g=d&ignore=.csv
>> url
=== http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e== 25&f=2005&g=d&ignore=.csv But this is not:
>> url: to-url "http://ichart.yahoo.com/table.csv?s=^DJI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d&ignore=.csv" >> url
=== http://ichart.yahoo.com/table.csv?s=%04JI&a=1&b=26&c=2004&d=1&e=25&f=2005&g=d&ignore=.csv The reason is that rebol has found "^D" to be %04 instead of #"^" alone to be %5E. You need to replace #"^" before the rebol scanner gets a chance to find it. Maybe this is worth a mention to RT feedback? Maybe 'read should be able to fix #"^" on its own? HY

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