fix issue 247 (add bash completion)

git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@358 d0cd1f9f-072b-0410-8dd7-cf729c803f20

tesseract.completion

@@ -0,0 +1,39 @@
+#-*- mode: shell-script;-*-
+#
+# bash completion support for tesseract 
+#
+# Copyright (C) 2009 Neskie A. Manuel <neskiem@gmail.com>
+# Distributed under the Apache License, Version 2.0.
+#
+
+_tesseract_languages()
+{
+	local TESSDATA="/usr/share/tesseract-ocr/tessdata/"
+	local langs="$(ls $TESSDATA | grep DangAmbigs | cut -d \. -f 1)"
+
+	COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W "$langs" -- "$cur") )
+}
+
+_tesseract()
+{
+	local cur prev
+        COMPREPLY=()
+        cur="$2"
+        prev="$3"
+	
+	case "$prev" in
+		tesseract)
+			COMPREPLY=($(compgen -f -X "!*.+(tif)" -- "$cur") )
+		;;
+		*.tif)
+			COMPREPLY=($(compgen -W "$(basename  $prev .tif)" ) ) 
+		;;
+		-l)
+			_tesseract_languages
+		;;
+		*)
+			COMPREPLY=($(compgen -W "-l" ) ) 
+		;;
+    esac
+}
+complete -F _tesseract -o nospace tesseract