`antigen init` fails generating cache when path includes spaces about antigen HOT 2 OPEN

This for loop here breaks on white spaces and ends up calling zcompile space/.antigenrc (whereas the complete path was /antigen space/.antigenrc).

(Update: actually the loop works because $ANTIGEN_CHECK_FILES is an array? 🤔 )

Here's another thing that shows the problem:

# cat /root/.antigen/.resources 
/root/.zshrc
space/.antigenrc

The /antigen part in /antigen space/.antigenrc's path got mangled.

from antigen.

Here's the part to blame (interestingly includes a TODO 😅 ):

> trace="/antigen space/.antigenrc:2"
> echo ${${trace%:*}##* }
space/.antigenrc

(Honestly no idea what to do with this. 😅 )

Alright, I had to read some doc, but here I am. (It's super hard to find the right piece of doc by the way!)

• ${trace%:*} looks like the ${name%pattern} expansion syntax:

  If the pattern matches the end of the value of name, then substitute the value of name with the matched portion deleted; otherwise, just substitute the value of name. In the first form, the smallest matching pattern is preferred; in the second form, the largest matching pattern is preferred.

  This is meant to delete the :2 portion of the trace line.

• ${path##* } looks like the ${name##pattern} expansion syntax:

  If the pattern matches the beginning of the value of name, then substitute the value of name with the matched portion deleted; otherwise, just substitute the value of name. In the first form, the smallest matching pattern is preferred; in the second form, the largest matching pattern is preferred.

  This seems to delete "everything until the last space at the beginning of the string".

It's hard to understand whether the expansion that deletes until the last space is required or not, or why it's there. It was original introduced in this commit, and both the commit and associated PR lack details that could explain why it's necessary... 🤔

For what it's worth, this diff seemed to fix it for my very simplistic setup (I can't imagine it won't break anything though 😰):

diff --git i/bin/antigen.zsh w/bin/antigen.zsh
index aeba2a7..f0d83d9 100644
--- i/bin/antigen.zsh
+++ w/bin/antigen.zsh
@@ -1917,7 +1917,7 @@ EOC
       fi
       # TODO Fix: Fuzzy match shoud be replaced by a sane way to determine it.
       if [[ $#funcfiletrace -ge 6 ]]; then
-        ANTIGEN_CHECK_FILES+=("${${funcfiletrace[6]%:*}##* }")
+        ANTIGEN_CHECK_FILES+=("${funcfiletrace[6]%:*}")
       fi
     fi
 
diff --git i/src/ext/cache.zsh w/src/ext/cache.zsh
index 248638d..85f1d04 100644
--- i/src/ext/cache.zsh
+++ w/src/ext/cache.zsh
@@ -133,7 +133,7 @@ EOC
       fi
       # TODO Fix: Fuzzy match shoud be replaced by a sane way to determine it.
       if [[ $#funcfiletrace -ge 6 ]]; then
-        ANTIGEN_CHECK_FILES+=("${${funcfiletrace[6]%:*}##* }")
+        ANTIGEN_CHECK_FILES+=("${funcfiletrace[6]%:*}")
       fi
     fi

from antigen.