update(user/bkdatev):Add Helsinki, Finland

[BK-2020-03.git] / user / bkdatev

diff --git a/user/bkdatev b/user/bkdatev
index f2f92ec99e93801a422f1547316f50f2f2c86329..89388437f3701e4e16ec0baded8699c3eb0d3d8f 100755 (executable)
--- a/user/bkdatev
+++ b/user/bkdatev
@@ -2,7 +2,8 @@
 # Desc: Baltakatei's verbose date command
 # Usage: bkdatev [args]
 # Example: bkdatev --date="2001-09-11T09:02:59-04"
-# Version: 0.3.0
+# Version: 0.3.4
+# Depends: GNU Coreutils 8.32, Bash 3.2.57
 # Ref/Attrib: [1] "ISO 8601". Wikipedia. https://en.wikipedia.org/wiki/ISO_8601
 #             [2] "Changing the Locale in Wine" https://stackoverflow.com/a/16428951
 #             [3] "Shanghai vs Beijing" https://bugs.launchpad.net/ubuntu/+source/libgweather/+bug/228554
@@ -11,6 +12,9 @@
 #         * For list of valid locales, see: https://manpages.ubuntu.com/manpages/bionic/man3/DateTime::Locale::Catalog.3pm.html
 #         * Locations chosen for population, personal signifiance, and spatial coverage.
 #         * For International Atomic Time (TAI), use offsets from UTC provided in `/usr/share/zoneinfo/leap-seconds.list`.
+#         * Compatibility with macOS may be limited if any arguments
+#             are provided when running `bkdatev`; e.g. passing a
+#             `--date` option to `bkdatev` will fail.
 
 yell() { echo "$0: $*" >&2; }
 die() { yell "$*"; exit 111; }
@@ -71,19 +75,22 @@ get_tz_offset() {
     # Desc: Get from 'date' the timezone UTC offset in a way
     #   compatible with both GNU Coreutils and BSD versions.
     # Input: env var: TZ  (time zone for date; e.g. 'America/Denver')
+    #        args: $@     # passed onto `date`
     # Depends: date (GNU Coreutils 8.32 or BSD), rev
     local ntz ntz ntz_out;
     local last2;
 
     # Get numeric time zone string in way compatible with GNU Coreutils and BSD
-    ntz="$(date "+%z")"; # e.g. "+0530"
+    ntz="$(date "+%z" "$@")"; # e.g. "+0530"
 
     # Check if last two characters are trailing zeros that can be removed.
     last2="${ntz:3:2}"; # assumes $ntz is 5 characters (i.e. "±HHMM")
     #last2="$(rev <<< $ntz)" && last2="${last2:0:2}" && last2="$(rev <<< "$last2")";
     if [[ "$last2" == "00" ]]; then
         ## ntz_out is truncated by 2 characters
-        ntz_out="${ntz:0:-2}";
+       len_ntz="${#ntz}";
+       len_ntz_out="$(( len_ntz - 2 ))";
+       ntz_out=""${ntz:0:$len_ntz_out};
     else
         ## ntz_out is ntz with semicolon inserted after HH
         ntz_out="$(insertStr "$ntz" 3 ":" )";
@@ -97,7 +104,7 @@ print_dateline() {
     #        var: $fs_1
     #        var: $fs_2
     #        var: $fs_3
-    #        args: $@
+    #        args: $@   # passed on to `date`
     #        env var: TZ (time zone for date; e.g. 'America/Denver')
     # Output: stdout
     # Depends: printf, date
@@ -109,10 +116,10 @@ print_dateline() {
     s_2="$(date "$@" "$fs_1")"; # ISO-8601 without numeric timezone
     s_3="$(date "$@" "$fs_2")"; # Alternate ISO-8601 expressions
     s_4="$(date "$@" "$fs_3")"; # locale-specific date strings
-
+    
     # Append numeric timezone to $s_2 with appropriate format
     #   (e.g. '-07' for 'Arizona', '+05:45' for 'Asia/Kathmandu')
-    s_2_tz="$(get_tz_offset)";
+    s_2_tz="$(get_tz_offset "$@")";
     s_2="$( printf "%s%s" "$s_2" "$s_2_tz" )";
 
     printf "%-10.10s %-25.25s (%-20.20s) (%s)" "$s_1" "$s_2" "$s_3" "$s_4";
@@ -254,6 +261,14 @@ main() {
         print_dateline "$@";
     ); line_sep;
 
+    # Helsinki, Finland
+    (
+        export TZ=Europe/Helsinki;
+        export LANG="fi_FI.UTF8";
+        id="HELSINKI";
+        print_dateline "$@";
+    ); line_sep;
+
     # Cairo, Egypt
     (
         export TZ=Africa/Cairo;