Reference information on text source (not required reading for the example above)

The % sign in the first column indicates a comment line. You can add, change or delete comment lines as desired. You can also add comments to the end of each mapping line in columns 73-80.
Each code point that maps to a target character other than the substitution character is listed in the character map.
The substitution character is assigned to each code point that is not explicitly provided.
The mappings can be changed by editing the values within the < and > signs.
You can add or delete lines from the character map.
Each code point must be mapped on its own line and must not extend beyond a single line.
Do not change the byte length of the character mappings. The length of the character mappings must match the length defined by the encoding scheme in the Unicode Services knowledge base. For example, because this is a single-byte to single-byte mapping, an entry of
```
08    <00> <0000>
```
is not valid since <0000> would indicate a double byte.