Re: [O] Inline code block syntax highlighting absence

[stardiviner]

Nicolas Goaziou <address@hidden> writes:

> Hello,
>
> stardiviner <address@hidden> writes:
>
>> Garreau, Alexandre <address@hidden> writes:
>>
>>> Why is there no syntax highlighting for *inline* source/code blocks?
>>>
>>> For instance, if I type the following:
>>>
>>> #+BEGIN_SRC org
>>>   src_emacs-lisp{(foo bar (quux))}
>>> #+END_SRC
>>>
>>> The underscore is not displayed, “emacs” is displayed in face
>>> ~org-latex-and-related~ *and* in subscript display (smaller and
>>> negatively raised), and all the rest in default face, with no syntax
>>> highlighting, even inside the braces (that I would expect as it is done
>>> inside non-inline blocks).
>>
>> I used to asked similar question, and answered my own question with
>> a font-lock solution. This link might be helpful.
>> https://stackoverflow.com/questions/20309842/how-to-syntax-highlight-for-org-mode-inline-source-code-src-lang
>
> Would you want to provide a patch for that?
>
> Thank you.
>
> Regards,

I did a search of "font-lock-add-keywords", "begin_src", "src_" etc in
Org Mode source code, but have not found exact place where fontify
function are. So I don't know where to modify the source code. Now I put
my current config here:

#+begin_src emacs-lisp
;; inline code face => src_ruby{require 'something'}
;;
;; (REGEXP . FACE)
;;     Highlight REGEXP with FACE
;; (REGEXP N FACE)
;;     Highlight group N in REGEXP with FACE
;; (REGEXP (N1 FACE1) (N2 FACE2) (N3 FACE3) …)
;;     Highlight group Ni in REGEXP with FACEi
;;
;; src_lang{code...}[:header arguments] / NOTE: override by `org-verbatim'.
;; result in following =[result]=

;; src_
(font-lock-add-keywords
 'org-mode
 '(("\\(src_\\)\\([^[{]+\\)\\(\\[:.*\\]\\)\\({\\)\\([^}]*\\)\\(}\\)"
    (1 '(:foreground "black" :weight 'normal :height 0.1)) ; src_ part
    (2 '(:foreground "cyan" :weight 'bold :height 0.8 :box '(:color "light 
gray"))) ; "lang" part.
    (3 '(:foreground "#555555" :height 0.7)) ; [:header arguments] part.
    (4 '(:foreground "#333333")) ; {
    (5 'org-code) ; "code..." part.
    (6 '(:foreground "#333333")) ; }
    ))
 'append)

;; src without arguments
(font-lock-add-keywords
 'org-mode
 '(("\\(src_\\)\\([^[{]+\\)\\({\\)\\([^}]*\\)\\(}\\)"
    (1 '(:foreground "black" :weight 'normal :height 0.1)) ; src_ part
    (2 '(:foreground "cyan" :weight 'bold :height 0.8 :box '(:color "light 
gray"))) ; "lang" part.
    (3 '(:foreground "#333333")) ; {
    (4 'org-code) ; "code..." part.
    (5 '(:foreground "#333333")) ; }
    ))
 'append)

;; inline babel call
;; ... call_<name>[<inside header arguments>](<arguments>)[<end header 
arguments>] ...
(font-lock-add-keywords
 'org-mode
 '(("\\(call_\\)\\([^[(]*\\)\\[\\(.*\\)\\](\\(.*\\))\\[\\(.*\\)\\]"
    ;; "\\(call_\\)\\([^[(]*\\)\\([([][^)]*]\\)+"
    (1 '(:foreground "orange red" :height 0.6)) ; call_
    (2 '(:foreground "yellow" :weight 'bold :underline "dark gray")) ; <name>
    (3 '(:foreground "gray" :height 0.6)) ; [<inside header arguments>]
    (4 '(:foreground "cyan" :weight 'bold)) ; (<arguments>)
    (5 '(:foreground "gray" :height 0.6)) ; [<end header arguments>]
    ))
 'append)

;; call_<name>[<inside header arguments>](<arguments>)
(font-lock-add-keywords
 'org-mode
 '(("\\(call_\\)\\([^[(]*\\)\\[\\(.*\\)\\](\\(.*\\))"
    (1 '(:foreground "orange red" :height 0.6)) ; call_
    (2 '(:foreground "yellow" :weight 'bold :underline "dark gray")) ; <name>
    (3 '(:foreground "gray" :height 0.6)) ; [<inside header argument>]
    (4 '(:foreground "cyan" :weight 'bold)) ; (<arguments>)
    ))
 'append)

;; call_<name>(arguments)
(font-lock-add-keywords
 'org-mode
 '(("\\(call_\\)\\([^[(]*\\)\\((.*)\\)"
    (1 '(:foreground "orange red" :height 0.6)) ; call_
    (2 '(:foreground "yellow" :weight 'bold :underline "dark gray")) ; <name>
    (3 '(:foreground "cyan" :weight 'bold)) ; (<arguments>)
    ))
 'append)
#+end_src

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[ stardiviner ]
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