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-#autoload
-
-# This function is called from functions that do matching whenever they
-# need to build a pattern that is used to match possible completions.
-# It gets the name of the calling function and two names of parameters
-# as arguments. The first one is used in the calling function to build
-# the pattern used for matching possible completions. The content of this
-# parameter on entry to this function is the string taken from the line.
-# Here it parameter should be changed to a pattern that matches words as
-# the match specs currently in use do.
-# In the calling function this pattern may be changed again or used only 
-# in parts. The second parameter whose name is given as the third argument
-# allows to give pattern flags liek `(#l)' that are to be used whenever
-# matching is done.
-#
-# As an example, if you have global match specifications like:
-#
-#  compctl -M 'm:{a-z}={A-Z}' 'm:{a-z}={A-Z} r:|[.-]=* r:|=*'
-#
-# This function would look like:
-#
-#   eval "${3}='(#l)'"
-#   [[ MATCHER -eq 2 ]] && eval "$1='${(P)2:gs/./*./:gs/-/*-/}'"
-#
-# The first line makes sure that matching is done case-insensitive as
-# specified by `m:{a-z}={A-Z}'. The second line replaces dots and hyphens
-# in the given string by patterns matching any characters before them,
-# like the `r:|[.-]=* r:|=*'. To make this work, the function `_match_test'
-# would have to be changed to `(( MATCHERS <= 2 ))'
-#
-# The default implementation of this function is empty.