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Supporting GFM tables

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This commit is contained in:
Scott Wang 2016-01-02 22:11:27 +08:00
parent dc324f0f42
commit 44514aeea4
1 changed files with 97 additions and 1 deletions
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98
ox-gfm.el
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@ -57,7 +57,10 @@
(org-open-file (org-gfm-export-to-markdown nil s v)))))))
:translate-alist '((inner-template . org-gfm-inner-template)
(strike-through . org-gfm-strike-through)
(src-block . org-gfm-src-block)))
(src-block . org-gfm-src-block)
(table-cell . org-gfm-table-cell)
(table-row . org-gfm-table-row)
(table . org-gfm-table)))
@ -84,6 +87,99 @@ CONTENTS is the text with strike-through markup. INFO is a plist
holding contextual information."
(format "~~%s~~" contents))
;;;; Table-Cell
(defvar width-cookies nil)
(defvar width-cookies-table nil)
(defun org-gfm-table-col-width (table column info)
"Return width of TABLE at given COLUMN. INFO is a plist used as
communication channel. Width of a column is determined either by
inquerying `width-cookies' in the column, or by the maximum cell with in
the column."
(let ((cookie (when (hash-table-p width-cookies)
(gethash column width-cookies))))
(if (and (eq table width-cookies-table)
(not (eq nil cookie)))
cookie
(progn
(unless (and (eq table width-cookies-table)
(hash-table-p width-cookies))
(setq width-cookies (make-hash-table))
(setq width-cookies-table table))
(let ((max-width 0)
(specialp (org-export-table-has-special-column-p table)))
(org-element-map
table
'table-row
(lambda (row)
(setq max-width
(max (length
(org-export-data
(org-element-contents
(elt ;(if specialp (car (org-element-contents row))
(org-element-contents row);)
column))
info))
max-width)))
info)
(puthash column max-width width-cookies))))))
(defun org-gfm-table-cell (table-cell contents info)
"Transcode TABLE-CELL element from Org into GFM. CONTENTS is content
of the cell. INFO is a plist used as a communication channel."
(let* ((table (org-export-get-parent-table table-cell))
(column (cdr (org-export-table-cell-address table-cell info)))
(width (org-gfm-table-col-width table column info))
(left-border (if (org-export-table-cell-starts-colgroup-p table-cell info) "| " " "))
(right-border " |")
(data (or contents "")))
(setq contents
(concat data
(make-string (- width (string-width data))
?\s)))
(concat left-border contents right-border)))
;;;; Table-Row
(defun org-gfm-table-row (table-row contents info)
"Transcode TABLE-ROW element from Org into GFM. CONTENTS is cell
contents of TABLE-ROW. INFO is a plist used as a communication
channel."
(when (eq 'rule (org-element-property :type table-row))
(let* ((table (org-export-get-parent-table table-row))
(left-border "| ")
(vertical " | ")
(right-border " |")
(build-rule
(function
(lambda (col)
(let ((max-width (org-gfm-table-col-width table col info)))
(make-string max-width ?-)))))
(cols (cdr (org-export-table-dimensions table info))))
(setq contents
(concat left-border
(mapconcat (lambda (col) (funcall build-rule col))
(number-sequence 0 (- cols 1))
vertical)
right-border))))
contents)
;;;; Table
(defun org-gfm-table (table contents info)
"Transcode TABLE element into Github Flavored Markdown table.
CONTENTS is the contents of the table. INFO is a plist holding
contextual information."
(replace-regexp-in-string "\n\n" "\n" contents))
;;;; Table of contents
(defun org-gfm-format-toc (headline)