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-rw-r--r--7seg.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/7seg.c b/7seg.c
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+/* $Id$ */
+/*
+ * Copyright (c) 2005 Dimitri Sokolyuk <sokolyuk@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+char allowed[] = "0123456789:.-";
+
+char *seg[][3] = {
+ ['0'] = { " _ ", "| |", "|_|" },
+ ['1'] = { " ", " |", " |" },
+ ['2'] = { " _ ", " _|", "|_ " },
+ ['3'] = { " _ ", " _|", " _|" },
+ ['4'] = { " ", "|_|", " |" },
+ ['5'] = { " _ ", "|_ ", " _|" },
+ ['6'] = { " _ ", "|_ ", "|_|" },
+ ['7'] = { " _ ", " |", " |" },
+ ['8'] = { " _ ", "|_|", "|_|" },
+ ['9'] = { " _ ", "|_|", " _|" },
+ [':'] = { " ", " * ", " * " },
+ ['.'] = { " ", " ", " * " },
+ ['-'] = { " ", " _ ", " " },
+};
+
+void
+sevenseg(char t[3][80], size_t sz, char *s)
+{
+ char *p;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ *t[i] = '\0';
+ for (p = s; *p; p++)
+ if (strchr(allowed, *p) != NULL)
+ strlcat(t[i], seg[(int)*p][i], sz);
+ }
+}