Rebased as requested. See attachment.
--
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From 0485b04e2515484a3ed47ccc348bc791a856017f Mon Sep 17 00:00:00 2001
From: Greg Reagle <greg.rea...@umbc.edu>
Date: Thu, 8 Jan 2015 14:21:37 -0500
Subject: [PATCH] If only the year operand is given, cal shall produce a
calendar for all twelve months in the given calendar year.
---
cal.1 | 8 +++++++-
cal.c | 11 ++++++++++-
2 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/cal.1 b/cal.1
index 8619460..e58b9d4 100644
--- a/cal.1
+++ b/cal.1
@@ -28,7 +28,13 @@ of calendars side by side. Each row of calendars contains at most
.IR columns
number of calendars. The defaults are obtained using
.IR localtime (3).
-The Julian calendar is used through Sep 2, 1752, and the Gregorian calendar is used starting the next day with Sep 14, 1752.
+If
+.IR year
+is given without
+.IR month
+print the whole year, unless overridden by options. The Julian calendar is used
+through Sep 2, 1752, and the Gregorian calendar is used starting the next day
+with Sep 14, 1752.
.SH OPTIONS
.TP
.B \-1
diff --git a/cal.c b/cal.c
index 8d6dda0..52c2f6d 100644
--- a/cal.c
+++ b/cal.c
@@ -146,7 +146,7 @@ main(int argc, char *argv[])
fday = 0;
ncols = 3;
- nmons = 1;
+ nmons = 0;
ARGBEGIN {
case '1':
@@ -183,6 +183,15 @@ main(int argc, char *argv[])
usage();
} ARGEND;
+ if (nmons == 0) {
+ if (argc == 1) {
+ month = 1;
+ nmons = 12;
+ } else {
+ nmons = 1;
+ }
+ }
+
switch (argc) {
case 2:
month = estrtol(argv[0], 0);
--
1.9.1
