# Functions
Move extra files like assets (images, fonts, css) over to output, preserving the structure.
Ensure directory exists.
If link is "/foo/bar/hello.md"
crumbs is {"foo", "bar"}
crumbLinks is {"/foo", "/foo/bar"}.
Get the nesting-depth of a filepath.
Given /path/to/filename.ext, return filename.
Given /path/to/filename.ext, return .ext.
Given /path/to/filename.ext, return filename.ext.
Given /path/to/filename.ext, return /path/to.
Given /abs/path/to/fileOrDir, where root is /abs/path, return to/fileOrDir.
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Return true/false if a path exists/doesn't exist.
OS delete given files.
Given filename.ext, return filename.
Move all index.md from files to the end so they are processed last.
Resolve the date d from format YYYY-MM-DD Returns a pretty date and a machine date.
Return the href.
Resolve out path of file or directory given absolute path f.
Return title mt else fn.