emacs-27 5bf2ef3: Add more blackboard bold characters to TeX input method

[Eli Zaretskii]

branch: emacs-27
commit 5bf2ef3871b0f42266f6bde7c0d2d607e9625770
Author: Ansgar Burchardt <address@hidden>
Commit: Eli Zaretskii <address@hidden>

    Add more blackboard bold characters to TeX input method
    
    This patch adds all capital blackboard bold letters and those for "1"
    and "2". Most characters are in common use in mathematics, but it does
    not seem useful to exclude the few not widely used.
    
    Reference: https://en.wikipedia.org/wiki/Blackboard_bold
    
    * lisp/leim/quail/latin-ltx.el (latin-ltx--define-rules): Add all
    the blackboard bold commands from AMSTeX.  (Bug#21103)
---
 lisp/leim/quail/latin-ltx.el | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/lisp/leim/quail/latin-ltx.el b/lisp/leim/quail/latin-ltx.el
index a9ea2bb..35a9adb 100644
--- a/lisp/leim/quail/latin-ltx.el
+++ b/lisp/leim/quail/latin-ltx.el
@@ -656,10 +656,34 @@ system, including many technical ones.  Examples:
  ("\\wp" ?℘)
  ("\\wr" ?≀)
 
- ("\\Bbb{N}" ?ℕ)                       ; AMS commands for blackboard bold
- ("\\Bbb{P}" ?ℙ)                       ; Also sometimes \mathbb.
+ ("\\Bbb{A}" ?𝔸)                       ; AMS commands for blackboard bold
+ ("\\Bbb{B}" ?𝔹)                       ; Also sometimes \mathbb.
+ ("\\Bbb{C}" ?ℂ)
+ ("\\Bbb{D}" ?𝔻)
+ ("\\Bbb{E}" ?𝔼)
+ ("\\Bbb{F}" ?𝔽)
+ ("\\Bbb{G}" ?𝔾)
+ ("\\Bbb{H}" ?ℍ)
+ ("\\Bbb{I}" ?𝕀)
+ ("\\Bbb{J}" ?𝕁)
+ ("\\Bbb{K}" ?𝕂)
+ ("\\Bbb{L}" ?𝕃)
+ ("\\Bbb{M}" ?𝕄)
+ ("\\Bbb{N}" ?ℕ)
+ ("\\Bbb{O}" ?𝕆)
+ ("\\Bbb{P}" ?ℙ)
+ ("\\Bbb{Q}" ?ℚ)
  ("\\Bbb{R}" ?ℝ)
+ ("\\Bbb{S}" ?𝕊)
+ ("\\Bbb{T}" ?𝕋)
+ ("\\Bbb{U}" ?𝕌)
+ ("\\Bbb{V}" ?𝕍)
+ ("\\Bbb{W}" ?𝕎)
+ ("\\Bbb{X}" ?𝕏)
+ ("\\Bbb{Y}" ?𝕐)
  ("\\Bbb{Z}" ?ℤ)
+ ("\\Bbb{1}" ?𝟙)
+ ("\\Bbb{2}" ?𝟚)
  ("--" ?–)
  ("---" ?—)
  ;; We used to use ~ for NBSP but that's inconvenient and may even look like