feat(user/mw_create_year_journal):Add mediawiki page script

diff --git a/user/mw_create_year_journal.sh b/user/mw_create_year_journal.sh
new file mode 100755 (executable)
index 0000000..e1a9925
--- /dev/null
+++ b/user/mw_create_year_journal.sh
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+# Desc: Prints mediawiki code for a journal year in the bk4 wiki.
+# Usage: /bin/bash mw_create_year_journal.sh [int year]
+# Input: arg1: year
+# Example: /bin/bash mw_create_year_journal.sh 2023 > output.txt
+# Version: 0.0.1
+
+yyyy="$1";
+
+yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
+die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
+must() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
+
+# Check input
+## Check arg count
+if [[ $# -ne 1 ]]; then die "FATAL:Invalid arg count:$#"; fi;
+## Strip leading zeros
+yyyy="$((10#${yyyy}))";
+
+## Check year
+re="[0-9]+";
+if [[ ! $yyyy =~ $re ]]; then die "FATAL:Invalid year string:$yyyy"; fi;
+if [[ ! $yyyy -ge 1582 ]]; then die "FATAL:Invalid year string:$yyyy"; fi;
+
+# Calc working vars
+## Years
+yyyy_prev="$((yyyy - 1))";
+yyyy_next="$((yyyy + 1))";
+
+# Form and print header
+printf "{{bk journal header year}}\n";
+printf "[[Journal]] for the year [[%d]]. " "$yyyy";
+printf "Preceded by [[%d]]. " "$yyyy_prev";
+printf "Followed by [[%d]]. " "$yyyy_next";
+printf "\n\n";
+
+printf "==Events==\n";
+printf "\n";
+
+# Form and print body
+for (( mm=1; mm <= 12; mm++ )); do
+    printf "==[[%4d-%02d]]==\n" "$yyyy" "$mm";
+done;
+printf "\n";
+
+# Form and print footer
+s1="==References==";
+s2="<references>";
+s3="</references>";
+printf "%s\n%s\n%s\n" "$s1" "$s2" "$s3";
+printf "\n";
+
+printf "==See Also==\n";
+printf "\n";
+
+printf "==Ext. Links==\n";
+printf "\n";
+
+printf "{{bk journal footer year}}\n";
+
+s1="[[Category:Journals by year]]";
+printf "%s\n" "$s1";
+printf "\n";