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Roland McGrath authored
(find-tag-noselect, find-tag, find-tag-other-window, find-tag-other-frame, find-tag-regexp): Use it. (find-tag, find-tag-other-window): Take new arg REGEXP-P, pass to find-tag-noselect. (find-tag-regexp): Call either find-tag-other-window or find-tag, rather than find-tag-noselect and switch-to-buffer[-other-window]. (tags-location-stack): New defvar. (find-tag-noselect): If NEXT-P is '-, pop location off tags-location-stack.
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