1 files changed, 42 insertions, 0 deletions
diff --git a/pcre.c b/pcre.c
new file mode 100644
index 0000000..d8129ef
--- /dev/null
+++ b/pcre.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <string.h>
+
+#include <gnumake.h>
+#include <pcre.h>
+
+int plugin_is_GPL_compatible;
+
+const int MAX_CAP = 256;
+
+char *match(const char *name, int argc, char **argv)
+{
+	pcre *re;
+	const char *err;
+	int erroffset;
+	int ncap = 0;
+	int ovec[MAX_CAP*3];
+	char *retstr = NULL;
+
+	re = pcre_compile(argv[0], 0, &err, &erroffset, NULL);
+	if (err != NULL) {
+		fprintf(stderr, "%s: %d: %s\n", name, erroffset, err);
+		goto end_match;
+	}
+
+	ncap = pcre_exec(re, NULL, argv[1], strlen(argv[1]), 0, 0, ovec, MAX_CAP*3);
+
+end_match:
+	if (ncap) {
+		int len = ovec[1] - ovec[0];
+		retstr = gmk_alloc(len + 1);
+		strncpy(retstr, argv[1] + ovec[0], len);
+		retstr[len + 1] = '\0';
+	}
+	return retstr;
+}
+
+int pcre_gmk_setup()
+{
+	gmk_add_function("m", (gmk_func_ptr)match, 2, 2, GMK_FUNC_NOEXPAND);
+	return 1;
+}