Add a test for cprepp.

test/test_pcrepp.cc

@@ -0,0 +1,43 @@
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <string>
+
+#include "pcrepp.hh"
+
+int main(int argc, char *argv[])
+{
+    pcre_context_static<30> context;
+    int retval = EXIT_SUCCESS;
+    
+    {
+	pcrepp nomatch("nothing-to-match");
+	pcre_input pi("dummy");
+	
+	assert(!nomatch.match(context, pi));
+    }
+
+    {
+	pcrepp match1("(\\w*)=(\\d+)");
+	pcre_input pi("a=1  b=2");
+
+	assert(match1.match(context, pi));
+	assert((context.end() - context.begin()) == 2);
+	assert(pi.get_substr(context.begin()) == "a");
+	assert(pi.get_substr(context.begin() + 1) == "1");
+	
+	assert(match1.match(context, pi));
+	assert((context.end() - context.begin()) == 2);
+	assert(pi.get_substr(context.begin()) == "b");
+	assert(pi.get_substr(context.begin() + 1) == "2");
+    }
+
+    {
+	pcrepp match2("");
+    }
+    
+    return retval;
+}