Add crazy (bad) xml parser thing

It only works for the Suunto "one xml file per dive" format, not for the
libdivecomputer one that just puts many dives in one file.

Maybe there is some way for libxml2 to handle concatenated xml files
(start again on errors), but I don't know it yet.

I need to get stinking drunk before I look at more xml mess.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Makefile

@@ -0,0 +1,2 @@
+parse: parse.c
+	gcc -g -o parse `xml2-config --cflags` parse.c `xml2-config --libs`

parse.c

@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+
+static void show_one_node(int i, xmlNode *node)
+{
+	static const char indent[] = "        ..";
+
+	if (i >= sizeof(indent))
+		i = sizeof(indent)-1;
+	printf("%.*snode '%s': %s\n", i, indent, node->name, node->content);
+}
+
+static void show(int indent, xmlNode *node)
+{
+	xmlNode *n;
+
+	for (n = node; n; n = n->next) {
+		show_one_node(indent, n);
+		show(indent+2, n->children);
+	}
+}
+
+static void parse(const char *filename)
+{
+	xmlDoc *doc;
+
+	doc = xmlReadFile(filename, NULL, 0);
+	if (!doc) {
+		fprintf(stderr, "Failed to parse '%s'.\n", filename);
+		return;
+	}
+
+	show(0, xmlDocGetRootElement(doc));
+	xmlFreeDoc(doc);
+	xmlCleanupParser();
+}
+
+int main(int argc, char **argv)
+{
+	int i;
+
+	LIBXML_TEST_VERSION
+
+	for (i = 1; i < argc; i++)
+		parse(argv[i]);
+	return 0;
+}