X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Fsplit.c;fp=tools%2Fsplit.c;h=f5d016a9c874bd5beae39a30f7bff40397a18e1f;hp=0000000000000000000000000000000000000000;hb=437fa285d12183a0f1e7450b3a01cbe5620a3507;hpb=b2def1c863e7e936eca2ee5d0fb1ccd7c83e4be7

diff --git a/tools/split.c b/tools/split.c
new file mode 100644
index 00000000..f5d016a9
--- /dev/null
+++ b/tools/split.c
@@ -0,0 +1,29 @@
+#include "tools.h"
+#include "talloc/talloc.h"
+#include <string.h>
+
+/* This is a dumb one which copies.  We could mangle instead. */
+char **split(const void *ctx, const char *text, const char *delims,
+	     unsigned int *nump)
+{
+	char **lines = NULL;
+	unsigned int max = 64, num = 0;
+
+	lines = talloc_array(ctx, char *, max+1);
+
+	while (*text != '\0') {
+		unsigned int len = strcspn(text, delims);
+		lines[num] = talloc_array(lines, char, len + 1);
+		memcpy(lines[num], text, len);
+		lines[num][len] = '\0';
+		text += len;
+		text += strspn(text, delims);
+		if (++num == max)
+			lines = talloc_realloc(ctx, lines, char *, max*=2 + 1);
+	}
+	lines[num] = NULL;
+	if (nump)
+		*nump = num;
+	return lines;
+}
+