Cannot reference tiddlers with titles containing a vertical bar ("|")

[UdoBorkowski]

Some characters are not allowed as Tiddler titles (even though this is not stated anywhere explicitly). Nevertheless these titles can be entered.

These "invalid" characters include the vertical bar |, but also the "]". This is mainly related to the way a tiddler can be referenced through the "pretty link" syntax:

[[some tiddler title]]

If a title contains a | (like "some tiddler title with a | vertical bar") this will look like

[[some tiddler title with a | vertical bar]]

making it the "second form" of the pretty link: the part before the | is taken as the label for the link and the part behind it (" vertical bar") as the tiddler title/external link. (Similar problem with a title like "the ]] in a title")

It should be possible to "escape" these chars in the pretty link to give access also to tiddlers containing these chars.

[UdoBorkowski]

(See this  discussion)

[FND]

#235 also includes other problematic characters