[R] How to suppress errors from htmlTreeParse() function in XML package?

[Tony Breyal]

Dear R-help,

The following code downloads an html document into variable 'doc' and
then stores an internal representation into variable 'html.tree'. Even
if the html code is malformed, this still works which is fantastic.
However, as in the example below, i do get some ouput from R in the
console which i would like to suppress somehow, so i can keep my
window a bit cleaner.

I understand that the output is just letting me know that the html
code is malformed, but for my purposes i can ignore that output. Is
there a way to achieve this?

### Example:
library(RCurl); library(XML)
doc <- getURL('http://www.google.co.uk/search?q=%22R%20Project
%22&as_qdr=d1&num=100')
html.tree <- htmlTreeParse(doc, useInternalNodes = TRUE)

### Output - this is what i would like to suppress
Tag nobr invalid
htmlParseEntityRef: expecting ';'
htmlParseEntityRef: expecting ';'
### etc.

I attempted to use try(expr, silent=TRUE) but that didn't work for me:
>  try(htmlTreeParse(doc, useInternalNodes = TRUE), silent=TRUE)


Many thanks in advance for any help,
Tony Breyal


### O/S = Windows Vista Ultimate ###
> sessionInfo()
R version 2.8.0 (2008-10-20)
i386-pc-mingw32

locale:
LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United Kingdom.
1252;LC_MONETARY=English_United Kingdom.
1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods
base

other attached packages:
[1] XML_1.98-1   RCurl_0.91-0
>