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[ruby/io-console] Extract CSI sequence

Browse Source 
https://github.com/ruby/io-console/commit/63dbeeecf4
This commit is contained in:
Nobuyoshi Nakada 2023-12-16 15:30:02 +09:00 committed by Hiroshi SHIBATA
parent 6931222883
commit 4173c4bcfb
1 changed files with 9 additions and 7 deletions
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16
ext/io/console/console.c
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@ -75,6 +75,8 @@ getattr(int fd, conmode *t)
#define SET_LAST_ERROR (0)
#endif
#define CSI "\x1b\x5b"
static ID id_getc, id_console, id_close;
static ID id_gets, id_flush, id_chomp_bang;
@ -1142,7 +1144,7 @@ static VALUE
console_scroll(VALUE io, int line)
{
if (line) {
VALUE s = rb_sprintf("\x1b[%d%c", line < 0 ? -line : line,
VALUE s = rb_sprintf(CSI "%d%c", line < 0 ? -line : line,
line < 0 ? 'T' : 'S');
rb_io_write(io, s);
}
@ -1204,7 +1206,7 @@ console_goto(VALUE io, VALUE y, VALUE x)
rb_syserr_fail(LAST_ERROR, 0);
}
#else
rb_io_write(io, rb_sprintf("\x1b[%d;%dH", NUM2UINT(y)+1, NUM2UINT(x)+1));
rb_io_write(io, rb_sprintf(CSI "%d;%dH", NUM2UINT(y)+1, NUM2UINT(x)+1));
#endif
return io;
}
@ -1229,8 +1231,8 @@ console_move(VALUE io, int y, int x)
#else
if (x || y) {
VALUE s = rb_str_new_cstr("");
if (y) rb_str_catf(s, "\x1b[%d%c", y < 0 ? -y : y, y < 0 ? 'A' : 'B');
if (x) rb_str_catf(s, "\x1b[%d%c", x < 0 ? -x : x, x < 0 ? 'D' : 'C');
if (y) rb_str_catf(s, CSI "%d%c", y < 0 ? -y : y, y < 0 ? 'A' : 'B');
if (x) rb_str_catf(s, CSI "%d%c", x < 0 ? -x : x, x < 0 ? 'D' : 'C');
rb_io_write(io, s);
rb_io_flush(io);
}
@ -1255,7 +1257,7 @@ console_goto_column(VALUE io, VALUE val)
rb_syserr_fail(LAST_ERROR, 0);
}
#else
rb_io_write(io, rb_sprintf("\x1b[%dG", NUM2UINT(val)+1));
rb_io_write(io, rb_sprintf(CSI "%dG", NUM2UINT(val)+1));
#endif
return io;
}
@ -1290,7 +1292,7 @@ console_erase_line(VALUE io, VALUE val)
constat_clear(h, ws.wAttributes, w, *pos);
return io;
#else
rb_io_write(io, rb_sprintf("\x1b[%dK", mode));
rb_io_write(io, rb_sprintf(CSI "%dK", mode));
#endif
return io;
}
@ -1332,7 +1334,7 @@ console_erase_screen(VALUE io, VALUE val)
}
constat_clear(h, ws.wAttributes, w, *pos);
#else
rb_io_write(io, rb_sprintf("\x1b[%dJ", mode));
rb_io_write(io, rb_sprintf(CSI "%dJ", mode));
#endif
return io;
}