* lisp/org-macro.el (org-macro-replace-all): Expand macros only within
narrowed part of buffer.
* testing/lisp/test-org-macro.el (test-org/macro-replace-all): Update
test.
Expanding macros outside in the whole buffer could make sense, e.g.,
if a macro expands to some Babel code, which, in turn, is evaluated
prior to export. However, by principle of least surprise, it is
better to limit expansion to current accessible part of the buffer.
* lisp/org-macro.el (org-macro--counter-table): New variable.
(org-macro--counter-initialize):
(org-macro--counter-increment): New functions.
(org-macro-initialize-templates): Use new functions.
* doc/org.texi (Macro replacement): Document new macro.
* testing/lisp/test-org-macro.el (test-org-macro/n):
(test-org-macro/property): New tests.
* lisp/org-macro.el (org-macro-escape-arguments,
org-macro-extract-arguments): New functions.
* lisp/org-element.el (org-element-macro-parser): Use new function.
* testing/lisp/test-org-macro.el (test-org-macro/escape-arguments,
test-org-macro/extract-arguments): New tests.
* lisp/org-macro.el (org-macro--collect-macros): Fix a bug where
reading a macro in a setup file would remove other macros read so
far from template. Change function signature.
(org-macro-initialize-templates): Apply signature change from function
above.
* testing/lisp/test-org-macro.el: Add test.