##Eskil Plugin : Compare set of words
# Example file for a plugin.
# A plugin must start exactly like this one.
# The text after : is the summary you can get at the command line
# This plugin compares the set of words in files.
# A plugin must define this procedure to do the job.
# side: left or right
# chi: An input channel for reading the original file.
# cho: An output channel for writing the processed file.
proc PreProcess {side chi cho} {
while {[gets $chi line] >= 0} {
foreach word [regexp -all -inline {\w+} $line] {
# Plugins have access to preferences
if {[info exists ::Pref(nocase)] && $::Pref(nocase)} {
set word [string tolower $word]
}
set words($word) 1
}
}
puts $cho [join [lsort -dictionary [array names words]] \n]
# Signal that the file after processing should be used both
# for comparison and for displaying.
return 1
}