and dereference the tag recursively until a non-tag object is
found.
+* A suffix '{caret}' to a revision parameter followed by a brace
+ pair that contains a text led by a slash (e.g. `HEAD^{/fix nasty bug}`):
+ this is the same as `:/fix nasty bug` syntax below except that
+ it returns the youngest matching commit which is reachable from
+ the ref before '{caret}'.
+
* A colon, followed by a slash, followed by a text (e.g. `:/fix nasty bug`): this names
- a commit whose commit message starts with the specified text.
+ a commit whose commit message matches the specified regular expression.
This name returns the youngest matching commit which is
reachable from any ref. If the commit message starts with a
'!', you have to repeat that; the special sequence ':/!',
followed by something else than '!' is reserved for now.
+ The regular expression can match any part of the commit message. To
+ match messages starting with a string, one can use e.g. `:/^foo`.
* A suffix ':' followed by a path (e.g. `HEAD:README`); this names the blob or tree
at the given path in the tree-ish object named by the part
':path' (with an empty part before the colon, e.g. `:README`)
is a special case of the syntax described next: content
recorded in the index at the given path.
+ A path starting with './' or '../' is relative to current working directory.
+ The given path will be converted to be relative to working tree's root directory.
+ This is most useful to address a blob or tree from a commit or tree that has
+ the same tree structure with the working tree.
* A colon, optionally followed by a stage number (0 to 3) and a
colon, followed by a path (e.g. `:0:README`); this names a blob object in the