on mouseUp
ask "enter regular expression"
put it into grepStr
--prompt user for a character string and set a SC variable
--string can be any valid extended regular expression
set the idlecontrols to true
set the style of me to chasingarrows
--set button type indicate busy (not functional, fix if possible)
put projectpath(this proj) into d
--set SC var to project path
put ".~pngStore" into d2
--set a SC variable to the name of folder to create to store converted images
--leading dot will make the folder invisible
put "`" into bq
--set a SC var to backquote (shell command expansion metacharacter)
--protect from merge
put "cd `[[bq]]osascript -e 'posix path of alias `[[d]]`' | perl -pe chomp[[bq]]` " into cmd
--set working directory to project folder
put "; rm -dr [[d2]] " after cmd
--remove the image store folder and it's content (if it exists)
--throws an error to console, should be handled differently
put " ; mkdir [[d2]] " after cmd
--make image store folder
put " ; cd ./[[d2]]  " after cmd
--change working directory to image store folder
put " ; pwd " after cmd
--return current working directory as an error check
put " ;locate '*.icns' | grep -iEv '^/volumes/' " after cmd
--use locate to return paths to all icns files
--strip non boot volumes via grep
put " | grep -iE '[[grepstr]]' " after cmd
--trim paths to those matching the user input regular expression
put " | awk -v dq='`' '{printf $0 `t` NR `_` ; system(`basename ` dq$0dq)}' " after cmd
--use awk to convert each line containing a path into tab delimited data
--where column 1 is the full unix path 
--and column 2 is a serial number + underscore + the icns file name
put " | perl -pe 's/.icns$/.png/' " after cmd
--change column 2 file name extension from .icns to .png
put " | awk -Ft -v dq='`' '{system(`sips -s format png ` dq$1dq` --out `dq$2dq)}' > ~ndx.txt 2>&1  " after cmd
--use awk execute sips conversion from icns file to png
--sips result messages are saved to a file '~ndx.txt' which will be converted to html
--each line of input is returned as two lines if no error
--1st line: the source path
--2nd line: a slash + name of converted file
put " ; grep -E '^Error|^Try |^Warning |^libpng error' < ~ndx.txt  > ~errors.txt  " after cmd
--read '~ndx.txt' and save lines containing error strings to an errors file
put " ; grep -Ev '^Error|^Try |^Warning |^libpng error' < ~ndx.txt  > ~ndx.txt~  " after cmd
--read '~ndx.txt' and save lines whithout error strings to a new file
put " ; tr `n` `r` < ~ndx.txt~ > ~ndx.txt " after cmd
--read 'ndx' file, change linefeeds to carriage returns and resave
put " ; rm -f ~ndx.txt~  " after cmd
--remove temporary file
put " ; perl -pi -e 's/r  //t//g' ~ndx.txt " after cmd
--replace every occurrence of <carriage return><space><slash> to <tab><slash>
put " ; perl -pi -e 's/r/n/g' ~ndx.txt " after cmd
--replace every carriage return with a linefeed
--now each line consists of 2 columns again
--source path <tab><slash>converted file name
put " ; perl -pi -e 's/t.*[[d2]](.*)$/t[[d2]]$1/' ~ndx.txt " after cmd
--use perl to prepend the image store folder name to 2nd column
put " ; perl -pi -e 's/([^0-9a-zt/n])/`%` . unpack(`H2`,$1)/gie' ~ndx.txt "  after cmd
--use perl to html encode non alpha numeric characters in each line of data
--excluding linefeeds, slashes, and tabs
put " ; perl -pi -e 's/^(.+)t(.+)$/<a href=x22file://$1x22><img src=x22$2x22></a>/' ~ndx.txt " after cmd
--use perl to prepend each line with 'a href=' + a double quote
--replace each tab with a double quote + '><img src=' + double quote
--append each line with a double quote + '></a>'
put " ; mv ~ndx.txt ../index.html " after cmd
--move the 'ndx' file to same level as project and rename to 'index.html'
--should wrap in a html header & footer, but works like this with safari.
put " ; open ../index.html " after cmd
--open the html file with the application specified by directory services
put merge(cmd) into cmd
--merge command syntax
get shell(cmd)
--execute
set the style of me to roundrect
-reset button style
end mouseUp