Rename and reorganize sections
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Gerard Vermeulen
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README.org
168
README.org
@ -1686,6 +1686,58 @@ nodes 1, 2, 3, and 4:\\
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#+include: worg-backend-dependent-execution-update.org
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How to include such figures as floats remains an open question.
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*** [[https://orgmode.org/worg/dev/org-syntax-edited.html][Org Syntax]]
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:PROPERTIES:
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:CUSTOM_ID: sec:org-syntax
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:END:
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Two tools to grok how [[https://orgmode.org/worg/dev/org-element-api.html][Org mode parsing]] works are the [[https://orgmode.org/worg/dev/org-syntax-edited.html][Org Syntax]] specification
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and the [[http://xahlee.info/emacs/emacs/elisp_parse_org_mode.html][Org mode parser tutorial]]. The [[https://orgmode.org/worg/dev/org-element-api.html][Org element parsing API]] boils down to three
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functions:
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1. The function [[https://orgmode.org/worg/dev/org-element-api.html#global][~org-element-parse-buffer~]] implements a fully recursive buffer
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parser that returns an abstract syntax tree.
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2. The functions [[https://orgmode.org/worg/dev/org-element-api.html#local][~org-element-at-point~ and ~org-element-context~]] return
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information on the document structure around point either at the element
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level or at the object level in case of ~org-element-context~.
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Listing [[lst:grok-org-element-tree]] improves the [[http://xahlee.info/emacs/emacs/elisp_parse_org_mode.html][Org mode parser tutorial]] by
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defining interactive wrappers that pretty print the results of those
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non-interactive =org-element= functions to an =Emacs-lisp= buffer.
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#+caption[Grok how =org-element= parses your document]:
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#+caption: Grok how =org-element= parses your document.
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#+name: lst:grok-org-element-tree
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#+begin_src emacs-lisp
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(with-eval-after-load 'org-element
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(when (autoload 'pp-display-expression "pp")
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(defconst grok-org-output
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"*Grok Org Element Output*"
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"Grok Org output buffer name.")
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(defun grok-org-element-at-point ()
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(interactive)
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(pp-display-expression
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(org-element-at-point) grok-org-output))
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(defun grok-org-element-context ()
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(interactive)
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(pp-display-expression
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(org-element-context) grok-org-output))
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(defun grok-org-element-parse-buffer ()
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(interactive)
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(let ((what (completing-read
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"granularity: "
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'(headline element greater-element object)
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nil 'require-match)))
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(pp-display-expression
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(org-element-parse-buffer what) grok-org-output)))
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(defun grok-org-heading-components ()
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(interactive)
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(pp-display-expression
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(org-heading-components) grok-org-output))))
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#+end_src
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* Programming
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:PROPERTIES:
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:CUSTOM_ID: sec:programming
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@ -2000,18 +2052,18 @@ instance [[https://numpy.org/][numpy]] and [[https://scipy.org/][scipy]].
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*** TODO Look into: editing facilities
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1. [[https://github.com/douglasdavis/numpydoc.el/blob/main/numpydoc.el][Emacs extension to insert numpy style docstrings in function definitions]]
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* Editing
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* [[info:emacs#Key Bindings][Key Bindings (info)]]
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:PROPERTIES:
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:CUSTOM_ID: sec:editing
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:CUSTOM_ID: sec:key-bindings
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:END:
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** [[https://www.emacswiki.org/emacs/DisabledCommands][Enable disabled commands and inform]]
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** [[info:emacs#Disabling][Disabling Commands (info)]]
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:PROPERTIES:
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:CUSTOM_ID: sec:enable-disabled-commands
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:END:
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Execute src_emacs-lisp{(find-library "novice")} to see how Emacs prevents new
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users from shooting themselves in the feet.
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users from shooting themselves in the feet. Listing
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[[lst:configure-disabled-command-function]] enables [[https://www.emacswiki.org/emacs/DisabledCommands][disabled commands on the fly]].
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#+caption[Configure the =disabled-command-function=]:
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#+caption: Configure the =disabled-command-function=.
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@ -2028,58 +2080,11 @@ users from shooting themselves in the feet.
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(call-interactively this-command)))
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#+end_src
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** [[info:emacs#Narrowing][Narrowing]]
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* [[info:emacs#Minor Modes][Minor Modes (info)]]
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:PROPERTIES:
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:CUSTOM_ID: sec:narrowing
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:CUSTOM_ID: sec:minor-modes
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:END:
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Narrowing means focusing in on some portion of the buffer and widening means
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focussing out on the whole buffer. This allows to concentrate temporarily on
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for instance a particular function or paragraph by removing clutter. The "Do
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What I Mean" [[https://endlessparentheses.com/emacs-narrow-or-widen-dwim.html][narrow-or-widen-dwim]] function allows to toggle between narrowed and
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widened buffer states. Here, the function =narrow-or-widen-dwim= operates also
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on tables by means of =org-narrow-to-table=.
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#+caption[Configure =narrow-or-widen-dwim=]:
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#+caption: Configure =narrow-or-widen-dwim=.
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#+name: lst:configure-narrow-or-widen-dwim
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#+begin_src emacs-lisp
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(defun org-narrow-to-table ()
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"Narrow buffer to current table."
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(interactive)
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(if (org-table-p)
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(narrow-to-region (org-table-begin) (org-table-end))
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(user-error "Not in a table")))
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(defun narrow-or-widen-dwim (p)
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"Widen if buffer is narrowed, narrow-dwim otherwise.
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Dwim means: region, org-src-block, org-subtree, or defun,
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whichever applies first. Narrowing to org-src-block actually
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calls `org-edit-src-code'.
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With prefix P, don't widen, just narrow even if buffer is
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already narrowed."
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(interactive "P")
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(declare (interactive-only))
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(cond ((and (buffer-narrowed-p) (not p)) (widen))
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((and (bound-and-true-p org-src-mode) (not p))
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(org-edit-src-exit))
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((region-active-p)
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(narrow-to-region (region-beginning) (region-end)))
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((derived-mode-p 'org-mode)
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(or (ignore-errors (org-edit-src-code))
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(ignore-errors (org-narrow-to-block))
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(ignore-errors (org-narrow-to-table))
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(org-narrow-to-subtree)))
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((derived-mode-p 'latex-mode)
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(LaTeX-narrow-to-environment))
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((derived-mode-p 'tex-mode)
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(TeX-narrow-to-group))
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(t (narrow-to-defun))))
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(define-key ctl-x-map (kbd "n t") #'org-narrow-to-table)
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(define-key ctl-x-map (kbd "C-n") #'narrow-or-widen-dwim)
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#+end_src
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** [[https://github.com/victorhge/iedit#readme][Synchronal multiple-region editing]]
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:PROPERTIES:
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:CUSTOM_ID: sec:synchronal-multiple-region-editing
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@ -2221,14 +2226,65 @@ code formatter for Python]].
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(yas-global-mode +1))
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#+end_src
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* [[https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg00775.html][Appearance]]
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* [[info:emacs#Display][Display (info)]]
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:PROPERTIES:
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:CUSTOM_ID: sec:appearance
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:CUSTOM_ID: sec:display
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:END:
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This setup does not configure [[info:emacs#Custom Themes][custom themes (info)]] in order to prevent endless
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useless tweaking.
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** [[info:emacs#Narrowing][Narrowing]]
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:PROPERTIES:
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:CUSTOM_ID: sec:narrowing
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:END:
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Narrowing means focusing in on some portion of the buffer and widening means
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focussing out on the whole buffer. This allows to concentrate temporarily on
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for instance a particular function or paragraph by removing clutter. The "Do
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What I Mean" [[https://endlessparentheses.com/emacs-narrow-or-widen-dwim.html][narrow-or-widen-dwim]] function allows to toggle between narrowed and
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widened buffer states. Here, the function =narrow-or-widen-dwim= operates also
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on tables by means of =org-narrow-to-table=.
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#+caption[Configure =narrow-or-widen-dwim=]:
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#+caption: Configure =narrow-or-widen-dwim=.
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#+name: lst:configure-narrow-or-widen-dwim
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#+begin_src emacs-lisp
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(defun org-narrow-to-table ()
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"Narrow buffer to current table."
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(interactive)
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(if (org-table-p)
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(narrow-to-region (org-table-begin) (org-table-end))
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(user-error "Not in a table")))
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(defun narrow-or-widen-dwim (p)
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"Widen if buffer is narrowed, narrow-dwim otherwise.
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Dwim means: region, org-src-block, org-subtree, or defun,
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whichever applies first. Narrowing to org-src-block actually
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calls `org-edit-src-code'.
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With prefix P, don't widen, just narrow even if buffer is
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already narrowed."
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(interactive "P")
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(declare (interactive-only))
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(cond ((and (buffer-narrowed-p) (not p)) (widen))
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((and (bound-and-true-p org-src-mode) (not p))
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(org-edit-src-exit))
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((region-active-p)
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(narrow-to-region (region-beginning) (region-end)))
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((derived-mode-p 'org-mode)
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(or (ignore-errors (org-edit-src-code))
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(ignore-errors (org-narrow-to-block))
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(ignore-errors (org-narrow-to-table))
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(org-narrow-to-subtree)))
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((derived-mode-p 'latex-mode)
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(LaTeX-narrow-to-environment))
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((derived-mode-p 'tex-mode)
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(TeX-narrow-to-group))
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(t (narrow-to-defun))))
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(define-key ctl-x-map (kbd "n t") #'org-narrow-to-table)
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(define-key ctl-x-map (kbd "C-n") #'narrow-or-widen-dwim)
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#+end_src
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** [[info:emacs#Faces][Text faces (or styles)]]
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:PROPERTIES:
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:CUSTOM_ID: sec:text-faces-or-styles
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