I have the following in my script :
function processurl
{
}
some_text%%%url1%%%url2%%%url3%%%
with number of urls varying between 0 to any finite number (in case of 0 the string is some_text%%%)
I want to apply processurl to the urls and give the output as :
some_text%%%processurl url1%%%processurl url2%%%processurl url3%%%
Any clues on how to do this?
this is actually the same question as this(also from you) Scripting in Bash
you could save your processURL function as a script, expecting the parameter, and in awk sending $i to this script, and get result. (you could use getline in awk).
see my answer in the other question, there is an example.
in a language like awk you cannot pass a function as an argument. So you have to do it the other way round. First you have to split the input, the process it and join it again. You can do it like this:
This will split the input:
awk -F"%%%" '{for(i=2;i<=NF;i++){if (i==NF){print ""}else print $i}}' file
Now you can read it linewise and apply your function, which you should save in a shell script "processurl":
| while read url; do ./processurl $url; done
And join it again:
awk 'BEGIN{RS=""}{for (i=1;i<=NF;i++)
{if (i==NF){printf "\s%%%%%%\n",$i}else{printf "%s%%%%%%",$i}}}'
HTH Chris
