[tex4ht-commits] [SCM] tex4ht updated: r1094 - trunk/lit

[Michal Hoftich]

Author: michal_h21
Date: 2022-03-20 20:29:43 +0000 (Sun, 20 Mar 2022)
New Revision: 1094

Modified:
   trunk/lit/ChangeLog
   trunk/lit/tex4ht-4ht.tex
Log:
don't execute graphics rules with unsupported drivers

Modified: trunk/lit/ChangeLog
===================================================================
--- trunk/lit/ChangeLog	2022-03-20 16:15:35 UTC (rev 1093)
+++ trunk/lit/ChangeLog	2022-03-20 20:29:43 UTC (rev 1094)
@@ -1,3 +1,8 @@
+2021-03-20  Michal Hoftich  <michal.h21 at gmail.com>
+
+	* tex4ht-4ht.tex (graphics.4ht): don't execute graphics rules when
+	user selected other driver than dvips.
+
 2022-03-20  Karl Berry  <karl at freefriends.org>
 
 	* update-htfonts: add installed files, not dev.

Modified: trunk/lit/tex4ht-4ht.tex
===================================================================
--- trunk/lit/tex4ht-4ht.tex	2022-03-20 16:15:35 UTC (rev 1093)
+++ trunk/lit/tex4ht-4ht.tex	2022-03-20 20:29:43 UTC (rev 1094)
@@ -26334,14 +26334,19 @@
 
 We need to find bounding boxes of images. Graphics support the .xbb file that contain this information.
 It is necessary to provide the DeclareGraphicsRule commands for supported image formats so 
-the .xbb file works.
+the .xbb file works. We execute these rules only with the default dvips driver. If user selects explicitly
+other drivers, it would result in a compilation error. 
 
+
 \<fix graphics\><<<
+\def\Gin:defaultdriver{dvips.def}
+\ifx\Gin at driver\Gin:defaultdriver%
 \DeclareGraphicsRule{.png}{bmp}{.xbb}{}
 \DeclareGraphicsRule{.jpg}{bmp}{.xbb}{}
 \DeclareGraphicsRule{.gif}{bmp}{.xbb}{}
 \DeclareGraphicsRule{.pdf}{bmp}{.xbb}{}
 \DeclareGraphicsRule{.svg}{bmp}{.xbb}{}
+\fi
 >>>
 
 %\expandafter\def\csname c:graphics-file:\endcsname#1{\Gin at drafttrue