Having difficulty using KWAL command to search for strings which involve periods
Peredur Webb-Davies
I'm trying to analyse our corpus of Welsh linguistic data which has been coded using CHAT. The corpus has multiple secondary tiers, and one of them is called %aut ('autoglossed tier') , which details word-by-word morphological glossing for each item in the main tier.
I want to use the KWAL command in CLAN to find certain items in the %aut tier, namely (at the moment) to find pronouns. The aim is to then extract the data from the relevant main tier, so that I have collated all tokens of that pronoun from a given set of data. These pronouns have been glossed in %aut in the format e.g. your.ADJ.POSS.2S for a 2nd person singular pronoun. My assumption was that a command such as the following would find all items matching the search string in the %aut tier in (e.g.) the file called davies2ag.cha:
kwal +t%aut +syour.ADJ.POSS.2S davies1ag.cha
However, this gives no results - even though I know there are instances of this token in that transcript. If you search for just +syour , for example, it finds those results (but cannot disambiguate between 2nd singular and plural forms, among other issues). I assume the problem is presence of the periods/full stops in the %aut tier.
I have tried using "" around the search string, I have tried to replace the stops with * and _ and ^_^, and I have also tried using COMBO instead of KWAL, but nothing helps. It says no items found.
I assume that there is an obvious answer that my very limited knowledge of coding is keeping from me, but if anyone can assist I would be hugely grateful!
I can supply more details as required.
Many thanks,
Peredur Webb-Davies
PS For info, here is a weblink to an example of a transcript, to show how it has been glossed etc.: http://bangortalk.org.uk/chats/siarad/davies2.cha
Brian MacWhinney
Yes, the problem is your use of periods. CLAN considers the period to be a sentence delimiter. I replaced them with a dash and then used the command
kwal +s"see-V-INFIN*" +t%aut test.cha
There were no problems. The example with one line changed is attached. It should easy enough to fix these using a GREP command.
-Brian MacWhinney
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Peredur Webb-Davies
Peredur
Brian MacWhinney
Peredur,
You can also do this with CHSTRING using this command:
chstring +t%aut +s"*.*" "*-*" *.cha +1
Make a complete copy of all of your files before trying this, because the +1 switch overwrites the originals, and there could be mistakes.
You have to run that command several times to make sure you change all the periods.
GREP is a part of UNIX that uses REGEX (regular expressions) and there are books about this.
-- Brian
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Peredur Webb-Davies
Peredur