[hackers] [sbase] cal: Highlight current day || sin

From: <git_AT_suckless.org>
Date: Sat, 21 Nov 2015 11:20:14 +0100 (CET)

commit 41a974203782cf6282c203fd7c16279afc0a10b3
Author: sin <sin_AT_2f30.org>
AuthorDate: Sat Nov 21 10:19:19 2015 +0000
Commit: sin <sin_AT_2f30.org>
CommitDate: Sat Nov 21 10:20:07 2015 +0000

    cal: Highlight current day
    
    Thanks cls!

diff --git a/cal.c b/cal.c
index 740dc02..b403d00 100644
--- a/cal.c
+++ b/cal.c
_AT_@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
+#include <unistd.h>
 
 #include "util.h"
 
_AT_@ -11,6 +12,8 @@ enum { JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC };
 enum caltype { JULIAN, GREGORIAN };
 enum { TRANS_YEAR = 1752, TRANS_MONTH = SEP, TRANS_DAY = 2 };
 
+static struct tm *ltime;
+
 static int
 isleap(size_t year, enum caltype cal)
 {
_AT_@ -56,6 +59,7 @@ printgrid(size_t year, int month, int fday, int line)
 {
         enum caltype cal;
         int offset, dom, d = 0, trans; /* are we in the transition from Julian to Gregorian? */
+ int today = 0;
 
         cal = (year < TRANS_YEAR || (year == TRANS_YEAR && month <= TRANS_MONTH)) ? JULIAN : GREGORIAN;
         trans = (year == TRANS_YEAR && month == TRANS_MONTH);
_AT_@ -72,8 +76,13 @@ printgrid(size_t year, int month, int fday, int line)
                 if (trans && !(line == 2 && fday == 3))
                         dom += 11;
         }
+ if (ltime && year == ltime->tm_year + 1900 && month == ltime->tm_mon)
+ today = ltime->tm_mday;
         for (; d < 7 && dom <= monthlength(year, month, cal); ++d, ++dom) {
- printf("%2d ", dom);
+ if (dom == today)
+ printf("\x1b[7m%2d\x1b[0m ", dom); /* highlight today's date */
+ else
+ printf("%2d ", dom);
                 if (trans && dom == TRANS_DAY)
                         dom += 11;
         }
_AT_@ -136,7 +145,6 @@ usage(void)
 int
 main(int argc, char *argv[])
 {
- struct tm *ltime;
         time_t now;
         size_t year, ncols, nmons;
         int fday, month;
_AT_@ -147,6 +155,9 @@ main(int argc, char *argv[])
         month = ltime->tm_mon + 1;
         fday = 0;
 
+ if (!isatty(STDOUT_FILENO))
+ ltime = NULL; /* don't highlight today's date */
+
         ncols = 3;
         nmons = 0;
 
Received on Sat Nov 21 2015 - 11:20:14 CET