Escape all ASCII control characters within strings when using ascii_only.

Fixes #1017.

Tab characters within strings are now output as `\t` in all output modes.

1 files changed, 32 insertions, 0 deletions

diff --git a/test/compress/ascii.js b/test/compress/ascii.js
new file mode 100644
index 00000000..5c6b3b8e
--- /dev/null
+++ b/test/compress/ascii.js
@@ -0,0 +1,32 @@
+ascii_only_true: {
+    options = {}
+    beautify = {
+        ascii_only : true,
+        beautify   : false,
+    }
+    input: {
+        function f() {
+            return "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" +
+                   "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" +
+                   "\x20\x21\x22\x23 ... \x7d\x7e\x7f\x80\x81 ... \xfe\xff\u0fff\uffff";
+        }
+    }
+    expect_exact: 'function f(){return"\\x00\\x01\\x02\\x03\\x04\\x05\\x06\\x07\\b\\t\\n\\x0B\\f\\r\\x0e\\x0f"+"\\x10\\x11\\x12\\x13\\x14\\x15\\x16\\x17\\x18\\x19\\x1a\\x1b\\x1c\\x1d\\x1e\\x1f"+\' !"# ... }~\\x7f\\x80\\x81 ... \\xfe\\xff\\u0fff\\uffff\'}'
+}
+
+ascii_only_false: {
+    options = {}
+    beautify = {
+        ascii_only : false,
+        beautify   : false,
+    }
+    input: {
+        function f() {
+            return "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" +
+                   "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" +
+                   "\x20\x21\x22\x23 ... \x7d\x7e\x7f\x80\x81 ... \xfe\xff\u0fff\uffff";
+        }
+    }
+    expect_exact: 'function f(){return"\\x00\x01\x02\x03\x04\x05\x06\x07\\b\\t\\n\\x0B\\f\\r\x0e\x0f"+"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"+\' !"# ... }~\x7f\x80\x81 ... \xfe\xff\u0fff\uffff\'}'
+}
+