Re: custom emacs org-emphasis-alist breaks EXPORT, help ;-) ?

[Eric Abrahamsen <eric@ericabrahamsen.net>]

Xebar Saram <zeltakc@gmail.com> writes:

> Thanks Eric , really appreciate the continuous help!
>
> i do plan to get into rexeg on the future (i promise :)) but real
> life now just allow me to allocate time (i started an assistant
> professor position and time is at a huge premium..).
>
> i tried using this as i tried to understand from your email, but i
> guess im again doing something wrong. shouldn't the below example
> color "salt", it dosent see to work.
>
> ;test
> (font-lock-add-keywords
>  'org-mode
> '(("\b[Ss]alt\\b)" (0 '(:weight ultra-bold :foregroun "#FF9800")
> t))))

Looks like you're missing a backslash at the beginning of the regexp --
make sure it reads "\\b...

E

> thank you for all your help
>
>
>
> On Sat, Nov 2, 2013 at 12:15 PM, Eric Abrahamsen <
> eric@ericabrahamsen.net> wrote:
>
>     Xebar Saram <zeltakc@gmail.com> writes:
>    
>     > Hi again all
>     >
>     > i have been using the before discussed font lock with great
>     success
>     > over the past few weeks, thx alot for that tip!
>     >
>     > one short question i have from using it thourhgly is weather
>     its
>     > possible to color specific words , IE not just text bound
>     between
>     > symbols ( ie > !text! ) but rather lets say i always want to
>     make the
>     > word server appear with blue FG. is this possible? currently i
>     tried 
>     >
>     > (font-lock-add-keywords
>     >  'org-mode
>     > '(("\\(server[^server\n]+server\\)" (0 '(:foreground "#000000"
>     > :underline t :background "#FF9AEA" :weight ultra-bold) t))))
>    
>     At some point you're definitely going to want to read up on
>     regular
>     expressions!
>    
>     But in the meantime yes, it's entirely (mostly) possible. A
>     regular
>     expression is just a way of finding desired pieces of text in a
>     larger
>     run of text. Think of the regexp as an instruction that starts:
>     "Find
>     all pieces of text that are..."
>    
>     All the special regexp characters are just a way of making the
>     instruction general (_any_ number, four of _any_ character,
>     _anything_
>     that's not a "p").
>    
>     In the most basic case, however, a regexp is simply the text you
>     want to
>     find: "Find all pieces of text that are 'server'". In this case,
>     that's
>     your regexp: "server".
>    
>     The reason regexps are difficult, of course, is that they can't
>     read
>     your mind, and will find things you didn't want, and not find
>     things you
>     did want. So much of messing with regexps is telling them: _yes_
>     this
>     too, _no_ not that. In your case, you'd probably want to put word
>     boundaries around the regexp ("\b" on either side), and find both
>     capitalized and lowercase instances of the word. So your
>     instruction
>     might be:
>    
>     "Find all pieces of text that are 'server' or 'Server', but only
>     as a
>     complete word."
>    
>     Which would look like
>    
>     "\\b[Ss]erver\\b"
>    
>     Give that a shot. You're jumping into the middle of something
>     fairly
>     complicated, so be patient and go slow!
>    
>     E
>    
>     > instead of the original
>     >
>     > (font-lock-add-keywords
>     >  'org-mode
>     > '(("\\(₆[^₆\n]+₆\\)" (0 '(:foreground "#000000" :underline t
>     > :background "#FF9AEA" :weight ultra-bold) t))))
>     >
>     >
>     > again i apologize for my regrex ignorance :)
>     >
>     > best
>     >
>     > Z
>     >
>     >
>     >
>     >
>     > On Sun, Oct 6, 2013 at 8:04 AM, Eric Abrahamsen <
>     > eric@ericabrahamsen.net> wrote:
>     >
>     >     Xebar Saram <zeltakc@gmail.com> writes:
>     >
>     >     > thx again Eric
>     >     >
>     >     > i still have an issue with this when one of the symbols
>     used to
>     >     start
>     >     > /end the highlight is used in a sentence, for example
>     using
>     >     your
>     >     > code:
>     >     >
>     >     > (font-lock-add-keywords
>     >     >  'org-mode
>     >     >  '(("-1-\\([^-1-]+\\)-1-" (0 '(:weight ultra-bold
>     :background "
>     >     #
>     >     > DDFFDD" :foreground "#000000") t))))
>     >     >
>     >     > if i write this:
>     >     >
>     >     > -1- this is a test of 1x1 to show higlight -1-
>     >     >
>     >     > it will kill the highlight, if i use the same text
>     omitting the
>     >     '1'
>     >     > it works well, anyway around this issue? i thought it
>     would
>     >     have
>     >     > matcehd -1- but it seems it matches also just 1 by itself
>     >     >
>     >     > best wishes and thx again
>     >
>     >     Yup, the things inside the [^] construct, to _not_ be
>     matched,
>     >     are
>     >     treated as a list of single characters. So you're saying
>     >     "anything
>     >     that's not a '1' or a '-'," but then you've got a '1' in
>     the
>     >     middle of
>     >     the line. If you want the highlighting to include any
>     character,
>     >     but not
>     >     span newlines, you could just use [^\n] instead.
>     >
>     >     At this point you'll probably want to read the regular
>     expression
>     >     part
>     >     of the manual:
>     >
>     >     (elisp) Regular Expressions
>     >
>     >     I think you mentioned you don't have a lot of programming
>     >     experience.
>     >     That's a bit unfortunate, since regexps aren't a great
>     place to
>     >     start!
>     >     I'd recommend getting something that's "close enough", and
>     not
>     >     going
>     >     down the rabbit hole of perfect. Then start at the top of
>     the
>     >     introduction to elisp...
>     >
>     >     Good luck,
>     >     Eric
>     >
>     >
>    
>