diff options
author | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
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committer | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
commit | 73b16af8feec390afbabd9356d6e5e83c0390838 (patch) | |
tree | 3730020ba2f9caeb9d7815a975af51830b51ce11 /libbb/printable.c |
busybox: imported from http://www.busybox.net/downloads/busybox-1.13.3.tar.bz2busybox-1.13.3
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Diffstat (limited to 'libbb/printable.c')
-rw-r--r-- | libbb/printable.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/libbb/printable.c b/libbb/printable.c new file mode 100644 index 0000000..ae93359 --- /dev/null +++ b/libbb/printable.c @@ -0,0 +1,34 @@ +/* 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); +} |