X3270/APL support

[Category:APL support]

Description
x3270 supports both display and input of APL characters.

Display
The  font includes a full set of APL characters; the other 3270 fonts have subsets (mostly the line-drawing characters from code page 310 ). Many  ( Unicode ) fonts have the most or all of the APL characters.

Input
In the default keymap, the key combination Shift-Escape performs the following functions: In the temporary keymap, Shift-Escape is changed to undo these three functions.
 * Enables APL mode for paste operations.
 * Sets a temporary keymap to allow APL characters to be entered.
 * Sets a temporary compose map to allow APL characters to be entered.