[Emacs-diffs] Changes to emacs/src/font.c,v

[Chong Yidong]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Chong Yidong <cyd>      08/06/20 23:27:07

Index: font.c
===================================================================
RCS file: /sources/emacs/emacs/src/font.c,v
retrieving revision 1.67
retrieving revision 1.68
diff -u -b -r1.67 -r1.68
--- font.c      19 Jun 2008 00:42:58 -0000      1.67
+++ font.c      20 Jun 2008 23:27:07 -0000      1.68
@@ -3733,7 +3733,8 @@
 \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH)
 
 where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values
-compatible with `set-face-attribute'.
+compatible with `set-face-attribute'.  Some of these key-attribute pairs
+may be omitted from the list if they are not specified by FONT.
 
 The optional argument FRAME specifies the frame that the face attributes
 are to be displayed on.  If omitted, the selected frame is used.  */)
@@ -3743,6 +3744,7 @@
   struct frame *f;
   Lisp_Object plist[10];
   Lisp_Object val;
+  int n = 0;
 
   if (NILP (frame))
     frame = selected_frame;
@@ -3762,36 +3764,49 @@
   else if (! FONTP (font))
     signal_error ("Invalid font object", font);
 
-  plist[0] = QCfamily;
   val = AREF (font, FONT_FAMILY_INDEX);
-  plist[1] = NILP (val) ? Qnil : SYMBOL_NAME (val);
+  if (! NILP (val))
+    {
+      plist[n++] = QCfamily;
+      plist[n++] = SYMBOL_NAME (val);
+    }
 
-  plist[2] = QCheight;
   val = AREF (font, FONT_SIZE_INDEX);
   if (INTEGERP (val))
     {
       Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX);
       int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy;
-      plist[3] = make_number (10 * PIXEL_TO_POINT (XINT (val), dpi));
+      plist[n++] = QCheight;
+      plist[n++] = make_number (10 * PIXEL_TO_POINT (XINT (val), dpi));
     }
   else if (FLOATP (val))
-    plist[3] = make_number (10 * (int) XFLOAT_DATA (val));
-  else
-    plist[3] = Qnil;
+    {
+      plist[n++] = QCheight;
+      plist[n++] = make_number (10 * (int) XFLOAT_DATA (val));
+    }
 
-  plist[4] = QCweight;
   val = FONT_WEIGHT_FOR_FACE (font);
-  plist[5] = NILP (val) ? Qnormal : val;
+  if (! NILP (val))
+    {
+      plist[n++] = QCweight;
+      plist[n++] = val;
+    }
 
-  plist[6] = QCslant;
   val = FONT_SLANT_FOR_FACE (font);
-  plist[7] = NILP (val) ? Qnormal : val;
+  if (! NILP (val))
+    {
+      plist[n++] = QCslant;
+      plist[n++] = val;
+    }
 
-  plist[8] = QCwidth;
   val = FONT_WIDTH_FOR_FACE (font);
-  plist[9] = NILP (val) ? Qnormal : val;
+  if (! NILP (val))
+    {
+      plist[n++] = QCwidth;
+      plist[n++] = val;
+    }
 
-  return Flist (10, plist);
+  return Flist (n, plist);
 }
 
 #endif