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Q1) How to enable Emacs keybindings?
R1: Insert
gtk-key-theme-name = "Emacs"
in your ".coqiderc" file. It may be in the current dir
or in $HOME dir.
Q2) How to change the default font ?
R2) Insert
style "default" {
font_name = "Monospace 14"
}
class "GtkTextView" style "default"
in your .coqiderc file. See Q1.
You may replace Monospace 14 by anything reasonable describing
a font. For example "Sans bold 22". See Pango Font Descriptions for more
informations (http://www.pango.org/).
Q3) How to enable antialiased fonts?
R3) Set the GDK_USE_XFT variable to 1.
Q4) How can use Forall and Exists pretty symbols ?
R4) Thanks to the Notation features in Coq, you just need to insert these
lines in your Coq Buffer :
======================================================================
Notation "∀ x : t | P" := (x:t)P (at level 1, x,t,P at level 10).
Notation "∃ x : t | P" := (EXT x:t|P) (at level 1, x,t,P at level 10).
======================================================================
Copy/Paste might not work. You need to load a file containing these lines or to enter
the "∀" using an input method. As a convenience, you may put these lines in
a utf8.v file and start coqide with :
coqide -l utf8.v
Input Methods:
-First solution : type "<CONTROL><SHIFT>2200" to enter a forall in the script widow.
2200 is the hexadecimal code for forall in unicode charts and is encoded as "∀"
in UTF-8.
2203 is for exists. See http://www.unicode.org for more.
-Second solution : rebind "<AltGr>a" to forall and "<AltGr>e" to exists. Under X11, you need to
use something like
xmodmap -e "keycode 24 = a A F13 F13"
xmodmap -e "keycode 26 = e E F14 F14"
and then to add
bind "F13" {"insert-at-cursor" ("∀")}
bind "F14" {"insert-at-cursor" ("∃")}
to your "binding "text"" section in .coqiderc.
The strange ("∀") argument is the UTF-8 encoding for
0x2200. It is computed by lablgtk2 by
Glib.Utf8.from_unichar 0x2200;;
Further symbols can be bound on higher Fxx key symbols.
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