svn commit: trunk/busybox/libbb
vda at busybox.net
vda at busybox.net
Sun Dec 30 20:13:40 UTC 2007
Author: vda
Date: 2007-12-30 12:13:39 -0800 (Sun, 30 Dec 2007)
New Revision: 20696
Log:
adding libbb/printable.c
Added:
trunk/busybox/libbb/printable.c
Changeset:
Added: trunk/busybox/libbb/printable.c
===================================================================
--- trunk/busybox/libbb/printable.c (rev 0)
+++ trunk/busybox/libbb/printable.c 2007-12-30 20:13:39 UTC (rev 20696)
@@ -0,0 +1,34 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 2007 Denis Vlasenko
+ *
+ * Licensed under GPL version 2, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+
+void 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);
+}
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