From the manual:
Spaces are not allowed in tags. So, if you want to have multiple words in a tag, you can use these formats:
- CamelCase: #TwoWords
- Underscore: #two_words
- Dash: #two-words
The only symbols allowed are:
-
_ (underscore) and - (dash) to separate words;
-
/ (forward slash) for nested tags
Numbers are allowed in the tag, as long as the tag is not purely numeric. For example, #1984 does not form a valid tag, but #y1984 is valid.
Angel