Renaming digressions to gnu-c

since that better describes what I'm doing in there, plus removed the
silly java prog because it was silly and not GNU C.

digressions/Makefile

@@ -1,8 +0,0 @@
-CFLAGS += -g -Wall -Wextra -pedantic -pedantic-errors
-
-%.class:%.java
-	javac -d $(PWD) $^
-
-all: temperatures qsort-example getopt-example URLParts.class
-
-.PHONY: all

digressions/URLParts.java

@@ -1,52 +0,0 @@
-import java.net.URL;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Collections;
-
-/**
- * A crappy little toy exercise not intended for actual usage.
- * Given a URL as first argument, prints the component parts on separate lines
- * all fancy-like.  Also does some silly guessing when there's no port
- * provided.  Unmazing.
- */
-public class URLParts {
-    public static final Map<String, Integer> defaultPorts;
-    static {
-        Map<String, Integer> tmpMap = new HashMap<String, Integer>();
-        tmpMap.put("http", 80);
-        tmpMap.put("https", 443);
-        tmpMap.put("file", -1);
-        defaultPorts = Collections.unmodifiableMap(tmpMap);
-    }
-
-    public static void main(String[] args) throws Exception {
-        for (int i = 0; i < args.length; i++) {
-            showParts(new URL(args[i]));
-        }
-    }
-
-    public static void showParts(URL url) {
-        String protocol = url.getProtocol();
-        int port = url.getPort();
-        if (port == -1) {
-            port = getDefaultPortForProtocol(protocol);
-        }
-
-        showPart("protocol", protocol);
-        showPart("host", url.getHost());
-        showPart("port", Integer.toString(port));
-    }
-
-    public static void showPart(String name, String value) {
-        System.out.println(String.format("%s: %s", name, value));
-    }
-
-    public static int getDefaultPortForProtocol(String protocol) {
-        if (protocol == null) {
-            protocol = "http";
-        } else {
-            protocol = protocol.toLowerCase();
-        }
-        return defaultPorts.get(protocol);
-    }
-}

gnu-c/Makefile

@@ -0,0 +1,6 @@
+TARGETS := $(patsubst %.c,%,$(wildcard *.c))
+CFLAGS += -g -Wall -Wextra -pedantic -pedantic-errors
+
+all: $(TARGETS)
+
+.PHONY: all