[pmwiki-users] wikish example please

Mark Lee mark.lee.phd at gmail.com
Wed May 29 16:06:16 CDT 2013

That syntax "Plants.Plant?" was just what I was looking for. Thanks.

Although it might be easier to just log data to a temporary file, I think I
will try the ${a-${i}} method for arrays with wikish. Can you send me
example code that will parse a line like the following, and store x and y
values in the arrays ${x-${i}} and ${y-${i}}?
(:location x=111 y=222:)

I have been experimenting with the form

{(wikish source {$FullName}#test)}

(:if false:)
for page in Plants.*
   if grep -q "(:location" ${page}
      set -s dataline = "`grep "x=" ${page}`"
      echo "${dataline}"
.......... more code goes here

I'm not sure this is the headed in the right direction. Thanks again for
your guidance.

On Wed, May 29, 2013 at 12:59 PM, Peter Bowers <pbowers at pobox.com> wrote:

> "Plants.Plant?" means any page in the Plants group which starts with the 5
> characters P-l-a-n-t followed by exactly 1 single character (whatever it
> is).  Thus Plants.Plant1 or Plants.PlantA would match, but Plants.Test1 or
> Plants.PlantAB would NOT match.  You may want something like Plants.* in
> order to match any pages in the Plants group.++
> Parsing the contents of variables is limited only by your mastery of
> regular expressions, wikish commands such as split, etc.  Lots of
> capabilities, but the learning curve can be somewhat steep.  You may want
> to check out the WikiSh tutorial I've got out there.
> WikiSh doesn't officially support arrays, but you can create variables
> named ${a-1}, ${a-2}, etc. and then access them via ${a-${i}} where ${i}
> contains a 1 or a 2.  Not sure if that makes sense, but that's the only way
> you can do arrays in WikiSh.
> -Peter
> On Wed, May 29, 2013 at 6:38 PM, Mark Lee <mark.lee.phd at gmail.com> wrote:
>> Peter,
>> I have copied your files Test.LocCode and Test.Loc1, Test.Loc2 and
>> Test.Loc3 to my site. I copied the wikish command to a new page
>> Plants.Plant001. I changed the grep source as shown below.
>> {(wikish echo "|| border=1"; grep '\(:location.*x=.*y=' Plants.Plant? |
>> sed -e 's/^/||/' -e 's/:\(:/||/' -e 's/ x=/||/' -e 's/ y=/||y=/' -e
>> 's/:\).*$/||/';)}
>> I get the error
>> WikiSh.Read: Unable to read Plants.Plant?. Does not exist.
>> Sorry for the newbie question, but what is the syntax error?
>> Another question... I am able to set a single variable equal to a line
>> selected with grep using the set command in wikish. Is there a way to parse
>> the variable and to push results into a set of arrays. For example, each
>> location line has a x= and y= value, and I would like to push x and y
>> values into separate arrays like I do in php. Is this something that can be
>> done with functions in wikish?
>> -Mark
>> On Tue, May 28, 2013 at 11:39 PM, Mark Lee <mark.lee.phd at gmail.com>wrote:
>>> Thank you Peter! Amazing. That example is so helpful. I'm glad I found
>>> pmwiki.
>>> -Mark
>>> On Tue, May 28, 2013 at 11:14 PM, Peter Bowers <pbowers at pobox.com>wrote:
>>>> On Tue, May 28, 2013 at 9:32 PM, Mark Lee <mark.lee.phd at gmail.com>
>>>> wrote:
>>>> >
>>>> > I am new to wikish. Is it possible to do the following with wikish?
>>>> >
>>>> > A subset of pages in a group have this markup on the page.
>>>> >
>>>> > (:location x=1 y=2:)
>>>> > (:location x=10 y=10:)
>>>> > (:location x=20 y=5)
>>>> > etc...
>>>> >
>>>> > 1. What is the code for listing out the locations, one per line,
>>>> along with the pagenames, excluding all pages without the (:loaction:)
>>>> markup. For example:
>>>> >
>>>> > Group:Group1
>>>> > Pagename=Name1, x=1, y=2
>>>> > Pagename=Name1, x=10, y=10
>>>> > Pagename=Name1, x=20, y=5
>>>> > Pagename=Name6, x=3, y=15
>>>> > Pagename=Name82, x=5, y=70
>>>> > Pagename=Name82, x=2, y=40
>>>> > etc...
>>>> grep '\(:location.*x=.*y=' Group1.*
>>>> > 2. Is it possible to format the output as a table?
>>>>  Several ways.  Here's one (approximate):
>>>> grep 'location.*x=.*y=' Group1.* | sed -e 's/^/||/' -e 's/:\(:/||/' -e
>>>> 's/ x=/||x=' -e 's/ y=/||y=' -e 's/:\).*$/||'
>>>> See http://pmwiki.qdk.org/pmwiki.php?n=Test.LocCode for a working
>>>> example with 3 pages of test data.
>>>> > 3. Is it possible to pipe the result to additional wikish code or a
>>>> php function?
>>>> Always possible to pipe it to additional wikish.  Or put that value in
>>>> a wikish variable (or pv or ptv) and then further manipulate it.  Or put it
>>>> into Tmp pages (which are available for wikish access and manipulation but
>>>> don't exist otherwise).  Or etc.
>>>> To mess with it in a php function probably you would want to bind your
>>>> function to a markup expression and then pipe data to/from wikish using
>>>> standard wikish conventions.  You can look at
>>>> http://www.pmwiki.org/wiki/Cookbook/MiscMX for some fairly minimalized
>>>> examples to work off of.
>>>> -Peter
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