Improve the default fontset wrt symbols

* lisp/international/fontset.el (setup-default-fontset): Better
setup of fontset-default for symbols: use Symbola and FreeMono.
(Bug#20727)

diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 06a47af0103dbb5c6ca3a8a6033b37821776a511..ebf12906ecb02058b82d9b2d9701093992afa1f9 100644 (file)
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -693,6 +693,51 @@
      (cons (car math-subgroup) (nth 1 math-subgroup))
      (font-spec :registry "iso10646-1" :script (nth 2 math-subgroup))))
 
+  ;; Special setup for various symbols and some rarely used characters
+  ;; covered well by Symbola.
+  (dolist (symbol-subgroup '((#x0250 . #x02AF)   ;; IPA Extensions
+                             (#x0370 . #x03FF)   ;; Greek and Coptic
+                             (#x0500 . #x052F)   ;; Cyrillic Supplement
+                             (#x2000 . #x206F)   ;; General Punctuation
+                             (#x2070 . #x209F)   ;; Superscripts and Subscripts
+                             (#x20A0 . #x20CF)   ;; Currency Symbols
+                             (#x2100 . #x214F)   ;; Letterlike Symbols
+                             (#x2150 . #x218F)   ;; Number Forms
+                             (#x2190 . #x21FF)   ;; Arrows
+                             (#x2200 . #x22FF)   ;; Mathematical Operators
+                             (#x2300 . #x23FF)   ;; Miscellaneous Technical
+                             (#x2400 . #x243F)   ;; Control Pictures
+                             (#x2440 . #x245F)   ;; Optical Char Recognition
+                             (#x2460 . #x24FF)   ;; Enclosed Alphanumerics
+                             (#x25A0 . #x25FF)   ;; Geometric Shapes
+                             (#x2600 . #x26FF)   ;; Miscellaneous Symbols
+                             (#x2700 . #x27bF)   ;; Dingbats
+                             (#x27C0 . #x27EF)   ;; Misc Mathematical Symbols-A
+                             (#x27F0 . #x27FF)   ;; Supplemental Arrows-A
+                             (#x2900 . #x297F)   ;; Supplemental Arrows-B
+                             (#x2980 . #x29FF)   ;; Misc Mathematical Symbols-B
+                             (#x2A00 . #x2AFF)   ;; Suppl. Math Operators
+                             (#x2B00 . #x2BFF)   ;; Misc Symbols and Arrows
+                             (#x2E00 . #x2E7F)   ;; Supplemental Punctuation
+                             (#x4DC0 . #x4DFF)   ;; Yijing Hexagram Symbols
+                             (#xFE10 . #xFE1F)   ;; Vertical Forms
+                             (#x10100 . #x1013F) ;; Aegean Numbers
+                             (#x102E0 . #x102FF) ;; Coptic Epact Numbers
+                             (#x1D000 . #x1D0FF) ;; Byzanthine Musical Symbols
+                             (#x1D200 . #x1D24F) ;; Ancient Greek Musical Notation
+                             (#x1F0A0 . #x1F0FF) ;; Playing Cards
+                             (#x1F100 . #x1F1FF) ;; Enclosed Alphanumeric Suppl
+                             (#x1F300 . #x1F5FF) ;; Misc Symbols and Pictographs
+                             (#x1F600 . #x1F64F) ;; Emoticons
+                             (#x1F650 . #x1F67F) ;; Ornamental Dingbats
+                             (#x1F680 . #x1F6FF) ;; Transport and Map Symbols
+                             (#x1F700 . #x1F77F) ;; Alchemical Symbols
+                             (#x1F780 . #x1F7FF) ;; Geometric Shapes Extended
+                             (#x1F800 . #x1F8FF))) ;; Supplemental Arrows-C
+    (set-fontset-font "fontset-default" symbol-subgroup "Symbola"))
+  ;; Box Drawing and Block Elements
+  (set-fontset-font "fontset-default" '(#x2500 . #x259F) "FreeMono")
+
   ;; Append CJK fonts for characters other than han, kana, cjk-misc.
   ;; Append fonts for scripts whose name is also a charset name.
   (let* ((data (build-default-fontset-data))