nbsp and /italics/

nbsp and /italics/

[Thomas S. Dye]

Aloha Nicolas,

Using the filter you kindly provided (below) and this construct, "/Sida/
cf. /fallax/" I get the following incorrect LaTeX export, "\emph{Sida}
cf.~/fallax/".  I'm expecting "\emph{Sida} cf.~\emph{fallax}".

All the best,
Tom

#+name: ngz-nbsp
#+begin_src emacs-lisp
(defun ngz-latex-filter-nobreaks (text backend info)
  "Ensure \"_\" are properly handled in Beamer/LaTeX export."
  (when (memq backend '(e-beamer e-latex))
    (replace-regexp-in-string " " "~" text)))
(add-to-list 'org-export-filter-plain-text-functions
             'ngz-latex-filter-nobreaks)
#+end_src

-- 
Thomas S. Dye
http://www.tsdye.com

Re: nbsp and /italics/

[Thomas S. Dye]

Arghh.  I should have pointed out that this is the new exporter, and
that the first argument to replace-regexp-in-string is an alternative
underscore, not the blank space that shows up in my gnus.

Tom

tsd@tsdye.com (Thomas S. Dye) writes:

> Aloha Nicolas,
>
> Using the filter you kindly provided (below) and this construct, "/Sida/
> cf. /fallax/" I get the following incorrect LaTeX export, "\emph{Sida}
> cf.~/fallax/".  I'm expecting "\emph{Sida} cf.~\emph{fallax}".
>
> All the best,
> Tom
>
> #+name: ngz-nbsp
> #+begin_src emacs-lisp
> (defun ngz-latex-filter-nobreaks (text backend info)
>   "Ensure \"_\" are properly handled in Beamer/LaTeX export."
>   (when (memq backend '(e-beamer e-latex))
>     (replace-regexp-in-string " " "~" text)))
> (add-to-list 'org-export-filter-plain-text-functions
>              'ngz-latex-filter-nobreaks)
> #+end_src

-- 
Thomas S. Dye
http://www.tsdye.com

Re: nbsp and /italics/

[Nicolas Goaziou]

Hello,

tsd@tsdye.com (Thomas S. Dye) writes:

> Using the filter you kindly provided (below) and this construct, "/Sida/
> cf. /fallax/" I get the following incorrect LaTeX export, "\emph{Sida}
> cf.~/fallax/".  I'm expecting "\emph{Sida} cf.~\emph{fallax}".

This is because `org-emph-re' only accepts the beginning of line,
a white space, a tab, or any symbol among ('\"{ before emphasis markup.
Hence, _ (nobreak space) prevents identification of italics.

You may add _ to "pre" part of `org-emphasis-regexp-components'.


Regards,

-- 
Nicolas Goaziou

Re: nbsp and /italics/

[Thomas S. Dye]

Thanks Nicolas,

Works like magic.

All the best,
Tom

Nicolas Goaziou <n.goaziou@gmail.com> writes:

> Hello,
>
> tsd@tsdye.com (Thomas S. Dye) writes:
>
>> Using the filter you kindly provided (below) and this construct, "/Sida/
>> cf. /fallax/" I get the following incorrect LaTeX export, "\emph{Sida}
>> cf.~/fallax/".  I'm expecting "\emph{Sida} cf.~\emph{fallax}".
>
> This is because `org-emph-re' only accepts the beginning of line,
> a white space, a tab, or any symbol among ('\"{ before emphasis markup.
> Hence, _ (nobreak space) prevents identification of italics.
>
> You may add _ to "pre" part of `org-emphasis-regexp-components'.
>
>
> Regards,

-- 
Thomas S. Dye
http://www.tsdye.com

Re: nbsp and /italics/

[Rasmus]

tsd@tsdye.com (Thomas S. Dye) writes:

> #+name: ngz-nbsp
> #+begin_src emacs-lisp
> (defun ngz-latex-filter-nobreaks (text backend info)
>   "Ensure \"_\" are properly handled in Beamer/LaTeX export."
>   (when (memq backend '(e-beamer e-latex))
>     (replace-regexp-in-string " " "~" text)))
> (add-to-list 'org-export-filter-plain-text-functions
>              'ngz-latex-filter-nobreaks)
> #+end_src

Hmm, I'm intrigued by this and it could solve one of my long standing
issue with Org LaTeX export.

I write all new sentences with "  ", and for stuff like "fig. " I use
one space.  Pretty consistently.  I would love to modify the function
to recognize "point one space" as ".~" and "point double space" as
".  ".  (i.e. no translation).

Can anyone think of a clever regexp that recognizes the above pattern?
I tried, "\\.[ ]\{1\}" but it didn't work.  And without the \{1\} it's
too strong. . .

Thanks in advance,
Rasmus

-- 
I almost cut my hair, it was happened just the other day

Re: nbsp and /italics/

[Rasmus Pank Roulund]

Rasmus <rasmus@gmx.us> writes:

> Can anyone think of a clever regexp that recognizes the above pattern?
> I tried, "\\.[ ]\{1\}" but it didn't work.  And without the \{1\} it's
> too strong. . .

Here's one that seems to work in the primitive cases, but not when
there's a link. 

Tested on 
       test of tilde. small space fig. [[latex:ref][test]].  But here's a large space.

the regexp recognizes both small spaces, but does not insert the
tilde between "fig." and "[[".

Could I add it to an earlier hook or something similar to make it
work?

#+begin_src emacs-lisp
(defun ngz-latex-filter-nobreaks-double-space (text backend info)
  "Tries to export \"S1. S2\" as \"S1.~S2\" while letting \"S1.  S2\" be exported without tilde"
  (when (memq backend '(e-beamer e-latex))
    (replace-regexp-in-string "\\.[ ]\\{1\\}\\([^ ]\\)" ".~\\1" text)))

(add-to-list 'org-export-filter-plain-text-functions
             'ngz-latex-filter-nobreaks-double-space)
#+end_src

Thanks,
Rasmus

-- 
I almost cut my hair, it was happened just the other day

Re: nbsp and /italics/

[Suvayu Ali]

On Tue, Oct 16, 2012 at 10:14:24PM +0200, Rasmus wrote:
> Can anyone think of a clever regexp that recognizes the above pattern?
> I tried, "\\.[ ]\{1\}" but it didn't work.  And without the \{1\} it's
> too strong. . .
> 

I believe you need to group the whole regexp for the {1} to work.  Try
something like this: "\\(\\. \\)\\{1\\}"

-- 
Suvayu

Open source is the future. It sets us free.