[R] read.socket - Strange strings. How to force sub to remove all occurences of a pattern?

Henrik Bengtsson hb at maths.lth.se
Thu Feb 19 18:57:42 CET 2004


Hi, here's some classical questions to you; what's your system and
what version of R are you using? Could you give a workable code
example how you connect to the Apache server? Is the server public so
others can test your code?

About sub(): you're looking for gsub().

Cheers

Henrik Bengtsson

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of wolski
> Sent: den 19 februari 2004 16:53
> To: r-help at stat.math.ethz.ch
> Subject: [R] read.socket - Strange strings. How to force sub 
> to remove all occurences of a pattern?
> 
> 
> 
> 
> I am opening a connection to an apache server sending a get 
> and then I am reading from the socket. All works finde except 
> that I am getting some strange strings disrupting the html e.g.
> 
> <FON\r\nffb\r\nT COLOR ...
> 
> \r\na48\r\n
>   \r\nffb\r\n 
> 
> They are not frequent ( a few of them) but of course make live hard.

> I cant observe them with lynx --source they dont occure. 
> 
> I am trying a workaround with sub. But it removes only the 
> first occurence. How I can force sub to remove all occurences 
> of a pattern and not only the first?
> 
> Eryk
> 
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