From ea77a73d4119feb0481e74bfa2754ebd2100bed9 Mon Sep 17 00:00:00 2001
From: Sergey Poznyakoff <gray@gnu.org.ua>
Date: Tue, 2 Oct 2012 16:28:14 +0300
Subject: Add command completion routine for bash. Install formats to
 pkgdatadir

* README: Update.
* configure.ac: Remove --with-format-dir. Use --pkgdatadir instead.
* etc/Makefile.am: Add new file.
* etc/compl.sh: New file.
---
 etc/compl.sh | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 etc/compl.sh

(limited to 'etc/compl.sh')

diff --git a/etc/compl.sh b/etc/compl.sh
new file mode 100644
index 0000000..d56f1a3
--- /dev/null
+++ b/etc/compl.sh
@@ -0,0 +1,82 @@
+#! /bin/bash
+# Bash completion setup for Eclat commands.
+# Copyright (C) 2012 Sergey Poznyakoff
+#
+# Eclat is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# Eclat is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Eclat.  If not, see <http://www.gnu.org/licenses/>.
+
+comp_eclat() {
+        # Obtain a list of command line options.  Each option occupies
+	# a single line and is followed by an equals sign if it takes
+	# an argument.
+	local optlist=$(eclat --usage|sed '1s/^[^[]*//' |
+                          tr -d '\n' |
+                          tr -s ' ' |
+                          sed 's/\] \[/:/g;' |
+                          tr -d '[]' | 
+                          awk -F: '
+                           function optproc(s,   i,n,a) {
+                         	if (match(s, /^-[a-zA-Z][a-zA-Z]/)) {
+                         	  n = split(s, a, "");
+                         	  for (i = 2; i <= n; i++)
+                         	    print "-" a[i];
+                         	} else if (match(s, /^-[a-zA-Z] ./)) 
+                         	  print substr(s,1,2) "=";
+                         	else {
+                                   if (match(s, /=/)) {
+                         	    opt="="
+                         	    sub(/=.*/,"",s)
+                         	  } else
+                         	    opt=""
+                         	  n = split(s, a, " ");
+                                   for (i = 1; i <= n; i++) {
+                         	    sub(/,$/,"",a[i])
+                         	    print a[i] opt
+                         	  }
+                         	}
+                           }
+                           { for (i = 1; i < NF; i++) optproc($i) }')
+
+	# Bail out if we're sitting on a word starting with a dash, i.e.
+	# an option.  Otherwise, make sure no command appears in the command
+	# line to the left of the current word.  If not, we're trying to
+	# complete a command, so proceed safely.
+	COMPREPLY=()
+	local opt arg=${COMP_WORDS[$COMP_CWORD]}
+	case $arg in
+	-*) return
+	esac
+	for i in $(seq $(($COMP_CWORD - 1)) -1 1)
+	do
+		opt=${COMP_WORDS[$i]}
+		case $opt in
+		-*) if test -n "$arg"; then
+		      if echo "$optlist" | grep -q "^$opt.*="; then
+		        test $i -eq $(($COMP_CWORD - 1)) && return
+		        arg=
+		      else
+		        return
+		      fi
+		    fi
+		    ;;
+		*)  if test -n "$arg" && test $i -lt $(($COMP_CWORD - 1)); then
+		      return
+		    else
+		      arg=$opt
+		    fi
+		esac
+	done
+	# Finally, find matching commands.
+	COMPREPLY=( $(eclat --match-commands ${COMP_WORDS[$COMP_CWORD]}) )
+}
+complete -F comp_eclat eclat
-- 
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