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Re: [help-texinfo] html: playing with the style

From: Akim Demaille
Subject: Re: [help-texinfo] html: playing with the style
Date: Thu, 9 May 2019 19:22:27 +0200

Hi Gavin,

Sorry for the delays...

> Le 29 avr. 2019 à 18:31, Gavin Smith <address@hidden> a écrit :
> On Sun, Apr 28, 2019 at 06:42:05PM +0200, Akim Demaille wrote:
>> Actually it works so well that now I wish I could also use
>> colors in PDF.  I have played with \pdfsetcolor, tweaked
>> with whatever seemed relevant in texinfo.tex, but to no
>> avail.  The Internet offers nothing interesting on "Texinfo
>> PDF colors" (except for URLs).
>> Even something copied straight from texinfo.tex does not work:
>> @macro dwarning{text}
>> @inlinefmtifelse{tex, @inlineraw{tex, {\setcolor{\linkcolor}}} \text\ 
>> @inlineraw{tex, {\endlink}}, \text\}
>> @end macro
> This may not work as \linkcolor is black by default.

What I meant is that it does not compile at all.  I knew it was
black by default, but first have the syntax right :)

Reading your code, I realize it should have been

@macro dwarning{text}
@inlineraw{tex, address@hidden@linkcolor}}} \text\ @inlineraw{tex, 
@end macro

> The following works to put text surrounded by @colorOn{} and @colorOff{} 
> in a purple colour:
> [...]
> The colour is set in texinfo.tex with \pdfliteral and the "rg" and "RG" 
> commands for PDF.  These take RGB values with each component being a 
> number between 0 and 1.

Thanks a lot for the hint!  I'll install the following in Bison.


commit ab3eaff7c40d6de0ca75a92f51225107ca7768ae
Author: Akim Demaille <address@hidden>
Date:   Thu May 9 19:08:07 2019 +0200

    doc: use colors for diagnostics in TeX too
    Thanks to Gavin Smith and Patrice Dumas.
    * doc/bison.texi (@colorWarning, @colorError, @colorNotice)
    (@colorOff): Define for TeX and HTML.
    (@dwarning, @derror, @dnotice): Use them.

diff --git a/THANKS b/THANKS
index 53a357ae..b14ee695 100644
--- a/THANKS
+++ b/THANKS
@@ -66,6 +66,7 @@ Frank Heckenbach          address@hidden
 Frans Englich             address@hidden
 Gabriel Rassoul           address@hidden
 Gary L Peskin             address@hidden
+Gavin Smith               address@hidden
 Georg Sauthoff            address@hidden
 George Neuner             address@hidden
 Gilles Espinasse          address@hidden
@@ -128,6 +129,7 @@ Oliver Mangold            address@hidden
 Paolo Bonzini             address@hidden
 Paolo Simone Gasparello   address@hidden
 Pascal Bart               address@hidden
+Patrice Dumas             address@hidden
 Paul Eggert               address@hidden
 Paul Hilfinger            address@hidden
 Per Allansson             address@hidden
diff --git a/doc/bison.texi b/doc/bison.texi
index a6cd29a1..821a5b4c 100644
--- a/doc/bison.texi
+++ b/doc/bison.texi
@@ -7,16 +7,49 @@
 @settitle Bison @value{VERSION}
 @setchapternewpage odd
+\gdef\rgbWarning{0.50 0 0.50}
+ \setcolor{\rgbWarning}%
+\gdef\rgbError{0.80 0 0}
+ \setcolor{\rgbError}%
+\gdef\rgbNotice{0 0 0.80}
+ \setcolor{\rgbNotice}%
+ \setcolor{\maincolor}%
address@hidden tex
address@hidden colorWarning
address@hidden, <b style="color:darkviolet">}
address@hidden macro
address@hidden colorError
address@hidden, <b style="color:red">}
address@hidden macro
address@hidden colorNotice
address@hidden, <b style="color:darkcyan">}
address@hidden macro
address@hidden colorOff
address@hidden, </b>}
address@hidden macro
address@hidden ifnottex
 @macro dwarning{text}
address@hidden, <b style="color:darkviolet">} \text\ @inlineraw{html, </b>}
 @end macro
 @macro derror{text}
address@hidden, <b style="color:red">} \text\ @inlineraw{html, </b>}
 @end macro
 @macro dnotice{text}
address@hidden, <b style="color:darkcyan">} \text\ @inlineraw{html, </b>}
 @end macro

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