···

       
1
       
1
       
+
       
text: "test\a"
     

···

       
1
       
1
       
+
       
escaped: "one\\two\\three"
     

···

       
9
       
9
       
 
       


     

       
10
       
10
       
 
       
Test: Capital U interpreted as unicode escape

     

       
11
       
11
       
 
       


     

       
12
       
12
       
-
       
  $ echo 'path: "C:\\Users\\Name"' | yamlcat --json 2>&1

     

       
12
       
12
       
+
       
  $ yamlcat --json failing_escapes.yml 2>&1

     

       
13
       
13
       
 
       
  Error: invalid hex escape:  at line 1, columns 12-12

     

       
14
       
14
       
 
       
  [1]

     

       
15
       
15
       
 
       


     

       
16
       
16
       
 
       
This fails because:

     

       
17
       
17
       
-
       
- Shell: echo 'C:\\Users\\Name' produces C:\Users\Name

     

       
18
       
18
       
-
       
- YAML sees: "C:\Users\Name"

     

       
17
       
17
       
+
       
- YAML input: "C:\Users\Name"

     

       
19
       
18
       
 
       
- \U is a 32-bit unicode escape (expects \UHHHHHHHH)

     

       
20
       
19
       
 
       
- "sers" are not 8 hex digits, so it fails

     

       
21
       
20
       
 
       


     

       
22
       
21
       
 
       
Test: Lowercase u unicode escape works

     

       
23
       
22
       
 
       


     

       
24
       
24
       
-
       
  $ echo 'unicode: "\\u0041"' | yamlcat --json

     

       
23
       
23
       
+
       
  $ yamlcat --json lowercase_u_unicode.yml

     

       
25
       
24
       
 
       
  {"unicode": "A"}

     

       
26
       
25
       
 
       


     

       
27
       
26
       
 
       
Test: Uppercase U requires 8 hex digits

     

       
28
       
27
       
 
       


     

       
29
       
29
       
-
       
  $ echo 'unicode: "\\U00000041"' | yamlcat --json

     

       
28
       
28
       
+
       
  $ yamlcat --json uppercase_U_unicode.yml

     

       
30
       
29
       
 
       
  {"unicode": "A"}

     

       
31
       
30
       
 
       


     

       
32
       
31
       
 
       
Test: Backslash escaping works for non-unicode

     

       
33
       
32
       
 
       


     

       
34
       
34
       
-
       
  $ echo 'escaped: "one\\\\two\\\\three"' | yamlcat --json

     

       
33
       
33
       
+
       
  $ yamlcat --json escaped_backslashes.yml

     

       
35
       
34
       
 
       
  {"escaped": "one\\two\\three"}

     

       
36
       
35
       
 
       


     

       
37
       
36
       
 
       
Test: Mixed valid escapes

     

       
38
       
37
       
 
       


     

       
39
       
39
       
-
       
  $ echo 'text: "Tab:\\t Newline:\\n Quote:\\\\"' | yamlcat --json

     

       
38
       
38
       
+
       
  $ yamlcat --json mixed_escapes.yml

     

       
40
       
39
       
 
       
  {"text": "Tab:\t Newline:\n Quote:\\"}

     

       
41
       
40
       
 
       


     

       
42
       
41
       
 
       
Test: Backslash a is bell character

     

       
43
       
42
       
 
       


     

       
44
       
44
       
-
       
  $ echo 'text: "test\\a"' | yamlcat --json

     

       
43
       
43
       
+
       
  $ yamlcat --json bell_character.yml

     

       
45
       
44
       
 
       
  {"text": "test\007"}

     

···

       
1
       
1
       
+
       
path: "C:\Users\Name"
     

···

       
1
       
1
       
+
       
unicode: "\u0041"
     

···

       
1
       
1
       
+
       
text: "Tab:\t Newline:\n Quote:\\"
     

···

       
1
       
1
       
+
       
unicode: "\U00000041"