From c69e595e4e45a3a6b3e5e8b96c19e0820e8ad484 Mon Sep 17 00:00:00 2001
From: Eric Fischer <enf@pobox.com>
Date: Wed, 5 Feb 2014 22:32:18 -0800
Subject: [PATCH] Do escaping in output strings

---
 jsoncat.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/jsoncat.c b/jsoncat.c
index bda444d..5e614ff 100644
--- a/jsoncat.c
+++ b/jsoncat.c
@@ -16,7 +16,20 @@ void json_print(json_object *j, int depth) {
 	if (j == NULL) {
 		printf("NULL");
 	} else if (j->type == JSON_STRING) {
-		printf("\"%s\"", j->string);
+		printf("\"");
+
+		char *cp;
+		for (cp = j->string; *cp != '\0'; cp++) {
+			if (*cp == '\\' || *cp == '"') {
+				printf("\\%c", *cp);
+			} else if (*cp >= 0 && *cp < ' ') {
+				printf("\\u%04x", *cp);
+			} else {
+				putchar(*cp);
+			}
+		}
+
+		printf("\"");
 	} else if (j->type == JSON_NUMBER) {
 		printf("%f", j->number);
 	} else if (j->type == JSON_NULL) {