When I am creating a link to a file, the link only works properly if the filename contains no spaces (usually create this link by dragging the file from Finder/Path Finder). That is all the characters up to the first space are turned into a hyperlink, the rest is ignored.
Apologies if this not the correct terminology. The following image shows the effect of a file with and without spaces:
（Note, incidentally that if you have any non Anglo characters in the file name, they will also be encoded numerically, so for example, the file selected here,
might have a clickable encoded path in TaskPaper which looked something like:
The escape sequence depends on the link type… if you are doing a URL link (file://…) then you need to escape spaces with %20. On the other hand if you are doing a “TaskPaper magic recognize path link” then you need to use \ to escape the spaces. For examples:
I think I just found the bug. Right now it only works if you escape one space… but if the path has more then one space it won’t open the file and you’ll see that dialog. I’ve just fixed for the next release.