mkinitrd-6_2_0/libbb/printable.c

/* vi: set sw=4 ts=4: */
/*
 * Utility routines.
 *
 * Copyright (C) 2007 Denys Vlasenko
 *
 * Licensed under GPL version 2, see file LICENSE in this tarball for details.
 */

#include "libbb.h"

void FAST_FUNC fputc_printable(int ch, FILE *file)
{
	if ((ch & (0x80 + PRINTABLE_META)) == (0x80 + PRINTABLE_META)) {
		fputs("M-", file);
		ch &= 0x7f;
	}
	ch = (unsigned char) ch;
	if (ch == 0x9b) {
		/* VT100's CSI, aka Meta-ESC, is not printable on vt-100 */
		ch = '{';
		goto print_caret;
	}
	if (ch < ' ') {
		ch += '@';
		goto print_caret;
	}
	if (ch == 0x7f) {
		ch = '?';
 print_caret:
		fputc('^', file);
	}
	fputc(ch, file);
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* Utility routines.
4	*
5	* Copyright (C) 2007 Denys Vlasenko
6	*
7	* Licensed under GPL version 2, see file LICENSE in this tarball for details.
8	*/
9
10	#include "libbb.h"
11
12	void FAST_FUNC fputc_printable(int ch, FILE *file)
13	{
14	if ((ch & (0x80 + PRINTABLE_META)) == (0x80 + PRINTABLE_META)) {
15	fputs("M-", file);
16	ch &= 0x7f;
17	}
18	ch = (unsigned char) ch;
19	if (ch == 0x9b) {
20	/* VT100's CSI, aka Meta-ESC, is not printable on vt-100 */
21	ch = '{';
22	goto print_caret;
23	}
24	if (ch < ' ') {
25	ch += '@';
26	goto print_caret;
27	}
28	if (ch == 0x7f) {
29	ch = '?';
30	print_caret:
31	fputc('^', file);
32	}
33	fputc(ch, file);
34	}