fails if the symbol contains chars like ( or '.
(bounds-of-thing-at-point): Remove unused vars `end' and `beg'.
(thing-at-point-bounds-of-url-at-point): Remove unused vars `url' and `short'.
(bounds-of-thing-at-point): Use `bounds-of-thing-at-point' property.
(thing-at-point-bounds-of-url-at-point): New function.
(thing-at-point-looking-at): New function, adapted from old
browse-url-looking-at.
(thing-at-point-url-at-point): New function, adapted from
browse-url-url-at-point.
(thing-at-point-url-chars): Variable deleted.
(thing-at-point-url-path-regexp, thing-at-point-short-url-regexp,
thing-at-point-url-regexp, thing-at-point-markedup-url-regexp):
New variables.
(url): `beginning-op' property function changed to use
`thing-at-point-bounds-of-url-at-point'. `end-op' property no
longer set -- functionality no longer supported for the more
sophisticated treatment of URLs so `forward-thing' no longer works
in this case.
Don't get error at end of buffer.
(bounds-of-thing-at-point): Don't get confused when a motion
function stops at end of buffer and there really isn't a thing.
Avoid redundant repeated scans.
to be at the same place as ORIG.
Try harder to find a thing that ends at ORIG.
(url): Move forward over colons.
Move back over colons at the end.
(thing-at-point-file-name-chars): Include @.
(url): Move back over periods at the end.
Downcase arguments as Lisp symbols.
Fix many doc strings.
(thing-at-point-file-name-chars): Renamed from file-name-chars.
Allow a colon.
(thing-at-point-url-chars): New variable.
(url): Define new kind of "thing".
