internal/rosa/package: migrate many libraries

This also adds more string helpers.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/package/libxslt.az

@@ -0,0 +1,31 @@
+package libxslt {
+	description = "an XSLT processor based on libxml2";
+	website = "https://gitlab.gnome.org/GNOME/libxslt";
+	anitya = 13301;
+
+	version* = "1.1.45";
+	source = remoteGitLab {
+		domain = "gitlab.gnome.org";
+		suffix = "GNOME/libxslt";
+		ref = "v"+version;
+		checksum = "67ks7v8od2oWaEGf23Sst_Xbn_8brQyolQjqxPoO-lK35k_WJhi2Px5JJgbk-nfn";
+	};
+
+	exec = make {
+		generate = "NOCONFIGURE=1 ./autogen.sh";
+
+		// python libxml2 cyclic dependency
+		skipCheck = true;
+	};
+
+	inputs = [
+		automake,
+		libtool,
+		python,
+		pkg-config,
+
+		libxml2,
+	];
+
+	runtime = [ libxml2 ];
+}