--- /dev/null
+#include <stdio.h>
+#include <string.h>
+#include "config.h"
+
+/**
+ * tal/str - string helper routines which use tal
+ *
+ * This is a grab bag of functions for string operations, designed to enhance
+ * the standard string.h; these are separated from the non-tal-needing
+ * string utilities in "str.h".
+ *
+ * Example:
+ * #include <ccan/tal/str/str.h>
+ * #include <ccan/grab_file/grab_file.h>
+ * #include <err.h>
+ *
+ * // Dumb demo program to double-linespace a file.
+ * int main(int argc, char *argv[])
+ * {
+ * char *textfile;
+ * char **lines;
+ *
+ * // Grab lines in file.
+ * textfile = grab_file(NULL, argv[1], NULL);
+ * if (!textfile)
+ * err(1, "Failed reading %s", argv[1]);
+ * lines = strsplit(textfile, textfile, "\n", STR_EMPTY_OK);
+ *
+ * // Join them back together with two linefeeds.
+ * printf("%s", strjoin(textfile, lines, "\n\n", STR_TRAIL));
+ *
+ * // Free everything, just because we can.
+ * tal_free(textfile);
+ * return 0;
+ * }
+ *
+ * License: BSD-MIT
+ * Author: Rusty Russell <rusty@rustcorp.com.au>
+ */
+int main(int argc, char *argv[])
+{
+ if (argc != 2)
+ return 1;
+
+ if (strcmp(argv[1], "depends") == 0) {
+ printf("ccan/str\n");
+ printf("ccan/tal\n");
+ return 0;
+ }
+
+ return 1;
+}