Mercurial > hg > xemacs-beta
diff src/console-tty-impl.h @ 3571:f6cd5fe9bf4c
[xemacs-hg @ 2006-08-24 21:21:34 by aidan]
Vary support for multiple-width characters on a per-console basis.
| author | aidan |
|---|---|
| date | Thu, 24 Aug 2006 21:21:36 +0000 |
| parents | 141c2920ea48 |
| children | e0db3c197671 |
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--- a/src/console-tty-impl.h Wed Aug 23 21:51:03 2006 +0000 +++ b/src/console-tty-impl.h Thu Aug 24 21:21:36 2006 +0000 @@ -200,6 +200,8 @@ /* Is this TTY our controlling terminal? */ unsigned int controlling_terminal :1; unsigned int is_stdio :1; + /* Do East Asian chars take up two columns? */ + unsigned int multiple_width :1; }; #ifdef NEW_GC @@ -221,6 +223,17 @@ #define CONSOLE_TTY_FINAL_CURSOR_X(c) (CONSOLE_TTY_DATA (c)->final_cursor_x) #define CONSOLE_TTY_FINAL_CURSOR_Y(c) (CONSOLE_TTY_DATA (c)->final_cursor_y) +/* In a more ideal world where available terminfo files actually included + information on whether a given TTY supports double-width characters or + not, oh, and where Mule was not conditional, SUPPORTS_MULTIPLE_WIDTH + would be as console-specific as its syntax implies. + + In this world, this is overengineering more than it is anything. */ +#define CONSOLE_TTY_SUPPORTS_MULTIPLE_WIDTH(c) (1 != MAX_ICHAR_LEN) +#define CONSOLE_TTY_MULTIPLE_WIDTH(c) \ + (CONSOLE_TTY_SUPPORTS_MULTIPLE_WIDTH(c) ? \ + CONSOLE_TTY_DATA (c)->multiple_width : (0)) + #define TTY_CM(c) (CONSOLE_TTY_DATA (c)->cm) #define TTY_SE(c) (CONSOLE_TTY_DATA (c)->se) #define TTY_SD(c) (CONSOLE_TTY_DATA (c)->sd)