From 456102b59e7eb2f38b4865cbe1bdd12f5f77acea Mon Sep 17 00:00:00 2001
From: Neale Pickett <neale@woozle.org>
Date: Sat, 3 Nov 2012 21:43:56 -0600
Subject: [PATCH] add printf esc program

---
 Makefile    |  1 +
 printfesc.c | 28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 printfesc.c

diff --git a/Makefile b/Makefile
index 4ce1035..bfb59c9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 CFLAGS = -Wall -Werror
 TARGETS = pmerge puniq p4split hd
+TARGETS += pyesc printfesc
 
 all: $(TARGETS)
 
diff --git a/printfesc.c b/printfesc.c
new file mode 100644
index 0000000..28e5bee
--- /dev/null
+++ b/printfesc.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+    printf("printf ");
+
+    while (! feof(stdin)) {
+        int c = getchar();
+
+        switch (c) {
+            case EOF:
+                break;
+            case '0' ... '9':
+            case 'A' ... 'Z':
+            case 'a' ... 'z':
+                putchar(c);
+                break;
+            default:
+                printf("\\\\%03o", c);
+                break;
+        }
+    }
+
+    putchar('\n');
+
+    return 0;
+}