Reduce duplication in latex functions
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louie
louie
parent
df2a90c9b8
commit
1feb3becc3
1 changed files with 62 additions and 90 deletions
146
anki-editor.el
146
anki-editor.el
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@ -64,19 +64,6 @@
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(require 'ox)
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(require 'ox-html)
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(defconst anki-editor-prop-note-type "ANKI_NOTE_TYPE")
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(defconst anki-editor-prop-note-id "ANKI_NOTE_ID")
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(defconst anki-editor-prop-exporter "ANKI_EXPORTER")
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(defconst anki-editor-prop-deck "ANKI_DECK")
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(defconst anki-editor-prop-tags "ANKI_TAGS")
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(defconst anki-editor-prop-tags-plus (concat anki-editor-prop-tags "+"))
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(defconst anki-editor-prop-failure-reason "ANKI_FAILURE_REASON")
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(defconst anki-editor-buffer-html-output "*AnkiEditor HTML Output*")
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(defconst anki-editor-org-tag-regexp "^\\([[:alnum:]_@#%]+\\)+$")
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(defconst anki-editor-exporter-raw "raw")
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(defconst anki-editor-exporter-default "default")
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(defconst anki-editor-api-version 5)
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(defgroup anki-editor nil
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"Customizations for anki-editor."
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:group 'org)
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@ -117,6 +104,8 @@ form entries."
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;;; AnkiConnect
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(defconst anki-editor-api-version 5)
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(cl-defun anki-editor--fetch (url
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&rest settings
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&key type data success error parser
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@ -246,95 +235,68 @@ The result is the path to the newly stored media file."
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media-file-name))
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;;; Org Export Backend
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;;; Org export backend
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(defconst anki-editor--ox-anki-html-backend
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(if anki-editor-use-math-jax
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(org-export-create-backend
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:parent 'html
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:transcoders '((latex-fragment . anki-editor--ox-latex-for-mathjax)
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(latex-environment . anki-editor--ox-latex-for-mathjax)))
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(org-export-create-backend
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:parent 'html
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:transcoders '((latex-fragment . anki-editor--ox-latex)
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(latex-environment . anki-editor--ox-latex)))))
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(latex-environment . anki-editor--ox-latex))))
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(defconst anki-editor--ox-export-ext-plist
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'(:with-toc nil :anki-editor-mode t))
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(defun anki-editor--translate-latex-delimiters (latex-code)
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(catch 'done
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(let ((delimiter-map (list (list (cons (format "^%s" (regexp-quote "$$")) "[$$]")
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(cons (format "%s$" (regexp-quote "$$")) "[/$$]"))
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(list (cons (format "^%s" (regexp-quote "$")) "[$]")
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(cons (format "%s$" (regexp-quote "$")) "[/$]"))
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(list (cons (format "^%s" (regexp-quote "\\(")) "[$]")
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(cons (format "%s$" (regexp-quote "\\)")) "[/$]"))
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(list (cons (format "^%s" (regexp-quote "\\[")) "[$$]")
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(cons (format "%s$" (regexp-quote "\\]")) "[/$$]"))))
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(matched nil))
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(save-match-data
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(dolist (pair delimiter-map)
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(dolist (delimiter pair)
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(when (setq matched (string-match (car delimiter) latex-code))
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(setq latex-code (replace-match (cdr delimiter) t t latex-code))))
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(when matched (throw 'done latex-code)))))
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latex-code))
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(cl-macrolet ((with-table (table)
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`(cl-loop for delims in ,table
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collect
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(list (concat "^" (regexp-quote (cl-first delims)))
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(cl-second delims)
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(concat (regexp-quote (cl-third delims)) "$")
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(cl-fourth delims)))))
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(defun anki-editor--translate-latex-delimiters-to-anki-mathjax-delimiters (latex-code)
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(catch 'done
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(let ((delimiter-map (list (list (cons (format "^%s" (regexp-quote "$$")) "\\[")
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(cons (format "%s$" (regexp-quote "$$")) "\\]"))
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(list (cons (format "^%s" (regexp-quote "$")) "\\(")
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(cons (format "%s$" (regexp-quote "$")) "\\)"))))
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(matched nil))
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(save-match-data
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(dolist (pair delimiter-map)
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(dolist (delimiter pair)
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(when (setq matched (string-match (car delimiter) latex-code))
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(setq latex-code (replace-match (cdr delimiter) t t latex-code))))
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(when matched (throw 'done latex-code)))))
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latex-code))
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(defconst anki-editor--native-latex-delimiters
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(with-table '(("$$" "[$$]"
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"$$" "[/$$]")
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("$" "[$]"
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"$" "[/$]")
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("\\(" "[$]"
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"\\)" "[/$]")
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("\\[" "[$$]"
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"\\]" "[/$$]"))))
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(defun anki-editor--wrap-latex (content)
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"Wrap CONTENT with Anki-style latex markers."
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(format "<p><div>[latex]</div>%s<div>[/latex]</div></p>" content))
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(defconst anki-editor--mathjax-delimiters
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(with-table '(("$$" "\\["
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"$$" "\\]")
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("$" "\\("
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"$" "\\)")))))
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(defun anki-editor--wrap-latex-for-mathjax (content)
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"Wrap CONTENT for Anki's native MathJax support."
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(format "<p>%s</p>" content))
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(defun anki-editor--translate-latex-fragment (latex-code)
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(let ((table (if anki-editor-use-math-jax
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anki-editor--mathjax-delimiters
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anki-editor--native-latex-delimiters)))
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(cl-loop for delims in table
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for matches = (string-match (cl-first delims) latex-code)
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when matches
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do
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(setq latex-code (replace-match (cl-second delims) t t latex-code))
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(string-match (cl-third delims) latex-code)
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(setq latex-code (replace-match (cl-fourth delims) t t latex-code))
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until matches
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finally return latex-code)))
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(defun anki-editor--wrap-div (content)
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(format "<div>%s</div>" content))
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(defun anki-editor--translate-latex-env (latex-code)
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(setq latex-code (replace-regexp-in-string "\n" "<br>" (org-html-encode-plain-text latex-code)))
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(if anki-editor-use-math-jax
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(concat "\\[<br>" latex-code "\\]")
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(concat "[latex]<br>" latex-code "[/latex]")))
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(defun anki-editor--ox-latex (latex _contents _info)
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"Transcode LATEX from Org to HTML.
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CONTENTS is nil. INFO is a plist holding contextual information."
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(let ((code (org-remove-indentation (org-element-property :value latex))))
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(setq code
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(pcase (org-element-type latex)
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('latex-fragment (anki-editor--translate-latex-delimiters code))
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('latex-environment (anki-editor--wrap-latex
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(mapconcat #'anki-editor--wrap-div
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(split-string (org-html-encode-plain-text code) "\n")
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"")))))
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(if anki-editor-break-consecutive-braces-in-latex
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(replace-regexp-in-string "}}" "} } " code)
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code)))
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(defun anki-editor--ox-latex-for-mathjax (latex _contents _info)
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"Transcode LATEX from Org to HTML.
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CONTENTS is nil. INFO is a plist holding contextual information."
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(let ((code (org-remove-indentation (org-element-property :value latex))))
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(setq code
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(pcase (org-element-type latex)
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('latex-fragment (anki-editor--translate-latex-delimiters-to-anki-mathjax-delimiters code))
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('latex-environment (anki-editor--wrap-latex-for-mathjax
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(mapconcat #'anki-editor--wrap-div
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(split-string (org-html-encode-plain-text code) "\n")
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"")))))
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(setq code (cl-ecase (org-element-type latex)
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(latex-fragment (anki-editor--translate-latex-fragment code))
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(latex-environment (anki-editor--translate-latex-env code))))
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(if anki-editor-break-consecutive-braces-in-latex
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(replace-regexp-in-string "}}" "} } " code)
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code)))
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@ -342,7 +304,6 @@ CONTENTS is nil. INFO is a plist holding contextual information."
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(defun anki-editor--ox-html-link (oldfun link desc info)
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"When LINK is a link to local file, transcodes it to html and stores the target file to Anki, otherwise calls OLDFUN for help.
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The implementation is borrowed and simplified from ox-html."
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(or (catch 'giveup
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(unless (plist-get info :anki-editor-mode)
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(throw 'giveup nil))
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@ -405,7 +366,18 @@ The implementation is borrowed and simplified from ox-html."
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(funcall oldfun link desc info)))
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;;; Core Functions
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;;; Core primitives
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(defconst anki-editor-prop-note-type "ANKI_NOTE_TYPE")
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(defconst anki-editor-prop-note-id "ANKI_NOTE_ID")
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(defconst anki-editor-prop-exporter "ANKI_EXPORTER")
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(defconst anki-editor-prop-deck "ANKI_DECK")
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(defconst anki-editor-prop-tags "ANKI_TAGS")
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(defconst anki-editor-prop-tags-plus (concat anki-editor-prop-tags "+"))
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(defconst anki-editor-prop-failure-reason "ANKI_FAILURE_REASON")
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(defconst anki-editor-org-tag-regexp "^\\([[:alnum:]_@#%]+\\)+$")
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(defconst anki-editor-exporter-raw "raw")
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(defconst anki-editor-exporter-default "default")
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(cl-defstruct anki-editor-note
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id model deck fields tags)
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@ -812,7 +784,7 @@ same as how it is used by `M-RET'(org-insert-heading)."
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(interactive)
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(org-export-to-buffer
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anki-editor--ox-anki-html-backend
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anki-editor-buffer-html-output nil t nil t anki-editor--ox-export-ext-plist #'html-mode))
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"*AnkiEditor HTML Output*" nil t nil t anki-editor--ox-export-ext-plist #'html-mode))
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(defun anki-editor-convert-region-to-html ()
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"Convert and replace region to HTML."
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