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conio.h: Add top-like heading macro, printheader()

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Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2017-06-30 20:27:59 +02:00
parent f89c3c88de
commit 2a59289d53
1 changed files with 9 additions and 1 deletions
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conio.h
+9 -1
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@@ -48,6 +48,10 @@
#define LIGHTCYAN 0x16
#define WHITE 0x17
#ifndef SCREEN_WIDTH
#define SCREEN_WIDTH 80 /* Override as #define SCREEN_WIDTH tty_width() */
#endif
/* Esc[2JEsc[1;1H - Clear screen and move cursor to 1,1 (upper left) pos. */
#define clrscr() fputs ("\033[2J\033[1;1H", stdout)
/* Esc[K - Erases from the current cursor position to the end of the current line. */
@@ -64,13 +68,17 @@
/* Esc[Value;...;Valuem - Set Graphics Mode */
#define __set_gm(attr,color,val) \
if (!color) \
printf("\033[%dm", attr); \
printf("\033[%dm", attr); \
else \
printf("\033[%d;%dm", color & 0x10 ? 1 : 0, (color & 0xF) + val)
#define textattr(attr) __set_gm(attr, 0, 0)
#define textcolor(color) __set_gm(RESETATTR, color, 30)
#define textbackground(color) __set_gm(RESETATTR, color, 40)
#define printheader(fp, line, nl) \
fprintf(fp ?: stdout, "%s\033[7m%s%*s\033[0m\n", nl ? "\n" : "",\
line, SCREEN_WIDTH - (int)strlen(line), "")
#endif /* CONIO_H_ */
/**