url-unreserved-chars

url-unreserved-chars is a variable defined in `url-util.el'.
Its value is

(97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 48 49 50 51 52 53 54 55 56 57 45 95 46 126)

• This variable may be risky if used as a file-local variable.

Documentation:
List of characters that are unreserved in the URL spec.
This is taken from RFC 3986 (section 2.3).