At Marathi language wikipedia usually I am useing contains_any(added_lines,"तू") parameter to filter a given word,since say i want to stop use of word "तू" .
To avoid false positives due to prefixes and suffixes to the word; we want to use parameter \b as word boundry on either side of the word or both side of the word as per reuirement.
We wish we should be able to use
*contains_any(added_lines,"तू\b"),should work, so that we do not get a false positive on word "तूप" and many similler words.
*contains_any(added_lines,"\bतू"),should work, so that we do not get a false positive on word "धातू" and many similler words.
*contains_any(added_lines,"\bतू\b"),should work,so that we do not get a false positive on word "दुकानातून" and many similler words.
The related edit(abuse) filter on Marathi language wikipedia is http://mr.wikipedia.org/wiki/विशेष:संपादन_गाळणी/10
For words where prefixes and suffixes are less we are using ! parameter but this parameter is not sufficient in words where too many suffixes or prefixes are possible.
If parameter \b can work or any other good option for word boundry it will be usefull to many devanagari script using wikis like Hindi and many other.
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