If headline is linked via customid in Org file, use customid in HTML
export as well. Additionally, while linking to headline from within a
TOC section, use customid preferentially in HTML export.
* contrib/lisp/org-export.el (org-export-get-tags): New function.
* contrib/lisp/org-e-ascii.el (org-e-ascii--build-title): Use new function.
* contrib/lisp/org-e-html.el (org-e-html-format-headline--wrap,
org-e-html-headline): Use new function.
* contrib/lisp/org-e-latex.el (org-e-latex-headline,
org-e-latex-inlinetask): Use new function.
* contrib/lisp/org-e-odt.el (org-e-odt-format-headline--wrap): Use new
function.
* testing/lisp/test-org-export.el: Add tests.
* contrib/lisp/org-export.el (org-export-resolve-coderef): New function.
* contrib/lisp/org-e-ascii.el (org-e-ascii-link): Use new function.
* contrib/lisp/org-e-html.el (org-e-html-link): Use new function.
* contrib/lisp/org-e-latex.el (org-e-latex-link): Use new function.
* contrib/lisp/org-e-odt.el (org-e-odt-link): Use new function.
* testing/lisp/test-org-export.el: Add tests.
* contrib/lisp/org-e-ascii.el (org-e-ascii-translate-alist): New variable.
* contrib/lisp/org-e-html.el (org-e-html-translate-alist): New
variable.
(org-e-html-filters-alist): Move variable into an appropriate section.
* contrib/lisp/org-e-latex.el (org-e-latex-translate-alist): New variable.
* contrib/lisp/org-e-odt.el (org-e-odt-translate-alist): New variable.
(org-e-odt-option-alist): Move variable into an appropriate section.
* contrib/lisp/org-export.el (org-export-transcoder): Retrieve
translators from `org-BACKEND-translate-alist' instead of applying
a naming convention to each of them.
* testing/lisp/test-org-export.el: Update tests.
* contrib/lisp/org-e-ascii.el (org-e-ascii-export-block): type
attribute is always uppercase.
* contrib/lisp/org-e-html.el (org-e-html-export-block): type attribute
is always uppercase.
* contrib/lisp/org-e-latex.el (org-e-latex-export-block): type
attribute is always uppercase.
* contrib/lisp/org-e-odt.el (org-e-odt-export-block): type attribute
is always uppercase.
* contrib/lisp/org-element.el (org-element-plain-list-parser):
Remove :level attribute from plain-list elements since it isn't
directly related to the plain-list and can be computed during export
process.
* contrib/lisp/org-e-latex.el (org-e-latex-item): Compute list level.
* contrib/lisp/org-e-html.el (org-e-html-item): Remove unneeded
reference to :level attribute.
* contrib/lisp/org-e-odt.el (org-e-odt-item): Remove unneeded
reference to :level attribute.
* contrib/lisp/org-element.el (org-element-headline-parser,
org-element-headline-interpreter, org-element-inlinetask-parser,
org-element-inlinetask-interpreter): Store headline/inlinetask's
tags as a list of strings.
* contrib/lisp/org-export.el (org-export--selected-trees,
org-export--skip-p): Use new tag representation.
* contrib/lisp/org-e-ascii.el (org-e-ascii--build-title,
org-e-ascii-format-inlinetask-function, org-e-ascii-inlinetask): Use
new tag representation.
* contrib/lisp/org-e-html.el (org-e-html-format-headline-function,
org-e-html-format-inlinetask-function, org-e-html--tags): Use new
tag representation.
* contrib/lisp/org-e-latex.el (org-e-latex-format-headline-function,
org-e-latex-format-inlinetask-function, org-e-latex-headline,
org-e-latex-inlinetask): Use new tag representation.
* contrib/lisp/org-e-odt.el (org-e-odt-format-org-tags): Use new tag
representation.
* testing/lisp/test-org-element.el: Update test.
* contrib/lisp/org-e-ascii.el (org-e-ascii--build-title,
org-e-ascii--build-caption, org-e-ascii--list-listings,
org-e-ascii--list-tables, org-e-ascii--describe-links,
org-e-ascii-template--document-title, org-e-ascii-dynamic-block,
org-e-ascii-inlinetask, org-e-ascii-item, org-e-ascii-link,
org-e-ascii-quote-section, org-e-ascii--table-cell-width): Do not
provide back-end symbol.
* contrib/lisp/org-e-html.el (org-e-html--caption/label-string,
org-e-html-footnote-section, org-e-html-template,
org-e-html-dynamic-block, org-e-html-format-headline--wrap,
org-e-html-headline, org-e-html-item, org-e-html-link,
org-e-html-time-stamp): Do not provide back-end symbol.
* contrib/lisp/org-e-latex.el (org-e-latex--caption/label-string,
org-e-latex-template, org-e-latex-dynamic-block,
org-e-latex-footnote-reference, org-e-latex-headline,
org-e-latex-inlinetask, org-e-latex-item, org-e-latex-link,
org-e-latex-src-block): Do not provide back-end symbol.
* contrib/lisp/org-e-odt.el (org-e-odt-format-preamble,
org-e-odt-format-label, org-e-odt-write-manifest-file,
org-e-odt--caption/label-string, org-e-odt-dynamic-block,
org-e-odt-format-headline--wrap, org-e-odt-headline, org-e-odt-item,
org-e-odt-latex-environment, org-e-odt-link, org-e-odt-src-block,
org-e-odt-time-stamp): Do not provide back-end symbol.
* contrib/lisp/org-export.el (org-export-get-environment): Provide
back-end symbol under `:back-end' property.
(org-export-collect-tree-properties, org-export-data,
org-export-filter-verbatim-functions, org-export-install-filters,
org-export-as, org-export-expand-macro,
org-export-filter-apply-functions, org-export-secondary-string):
Remove back-end references.
* testing/lisp/test-org-export.el: Update tests.
Back-end can be found in communication channel with (plist-get
info :back-end). Hence back-ends do not have to hard-code their name
in any transcoder. It will allow to derive a back-end from another
one.
