59 lines
2.0 KiB
EmacsLisp
59 lines
2.0 KiB
EmacsLisp
;; citeproc-macro.el --- functions to render CSL macros -*- lexical-binding: t; -*-
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;; Copyright (C) 2017 András Simonyi
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;; Author: András Simonyi <andras.simonyi@gmail.com>
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;; This file is not part of GNU Emacs.
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;;; Commentary:
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;; Functions to render the output of CSL macros.
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;;; Code:
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(require 'citeproc-lib)
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(require 'citeproc-rt)
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(require 'citeproc-context)
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;;; For macro evaluation
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(defun citeproc--macro (attrs context &rest body)
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"Render the content of a macro element with ATTRS and BODY."
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(let* ((spliced-body (citeproc-lib-splice-into body 'splice))
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(val (citeproc-rt-typed-join attrs spliced-body context)))
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(if (eq 'empty-vars (cdr val))
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(cons nil 'text-only)
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val)))
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(defun citeproc-macro-output (macro context)
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"Return the output of MACRO.
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MACRO is the macro's name as a string and the returned value is a
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(RICH-TEXT-CONTENT . CONTENT-TYPE) cons cell."
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(let ((macro-fun (assoc-default macro (citeproc-context-macros context))))
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(if macro-fun
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(funcall macro-fun context)
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(error "There is no macro called `%s' in style" macro))))
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(defun citeproc-macro-output-as-text (macro context)
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"Return the output of MACRO as plain text.
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MACRO is the macro's name as a string."
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(citeproc-rt-to-plain (citeproc-rt-render-affixes
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(car (citeproc-macro-output macro context)))))
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(provide 'citeproc-macro)
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;;; citeproc-macro.el ends here
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