sword 1.7.3 (new formula)

Sword is a mature programming library for working with biblical and
related tests that is used by different bible readers such as Xiphos
and BibleTime. This commit adds a first version of a formula for sword
to homebrew.

Formula/sword.rb

@@ -0,0 +1,44 @@
+require "formula"
+
+class Sword < Formula
+  homepage "http://www.crosswire.org"
+  url "ftp://ftp.crosswire.org/pub/sword/source/v1.7/sword-1.7.3.tar.gz"
+  sha1 "6ecac6364aa098e150cf8851fd8f97d48df21a34"
+
+  # Activates optional unicode support in sword.
+  depends_on "icu4c" => :optional
+  # Activates optional clucene based text searching capabilities in sword.
+  depends_on "clucene" => :optional
+
+  def install
+    args = [
+      "--prefix=#{prefix}",
+      "--disable-debug",
+      "--disable-profile",
+      "--disable-tests",
+      "--with-curl", # use system curl
+    ]
+
+    if build.with? "icu4c"
+      args << "--with-icu"
+    else
+      args << "--without-icu"
+    end
+
+    if build.with? "clucene"
+      args << "--with-clucene"
+    else
+      args << "--without-clucene"
+    end
+
+    system "./configure", *args
+    system "make", "install"
+  end
+
+  test do
+    # This will call sword's module manager to list remote sources.
+    # It should just demonstrate that the lib was correctly installed
+    # and can be used by frontends like installmgr.
+    system "#{bin}/installmgr", "-s"
+  end
+end