mkaito · February 22, 2012 15:48 · Feb 22, 2012
diff --git a/readrc.sh b/readrc.sh
@@ -0,0 +1,27 @@
+#!/usr/bin/env zsh
+# An example script that reads a colon separated rc file, given on argv
+# Line format expected:
+# option: value
+# Mind the colon and space separating option name from the value.
+# Adjust the parameter expansion as needed if you change the line format.
+
+# - read <var> will read a line at a time.
+# - Piping the file name into the while block reads the file into the read call.
+# - typeset -A <var> explicitly marks a hash for ZSH.
+#   declare -A <var> is the same for bash.
+# - Fancypants parameter expansion gives us opts[option]=value.
+# - Quoting the value allows is to be any valid string, which generally means
+#   that the value will be anything between the colon and the next newline character.
+
+if [[ -f $1 ]]; then
+    typeset -A opts
+    while read l; do
+        opts[${l%%:*}]="${l##*: }"
+    done < $1
+fi
+
+echo "Number of found options: ${#opts[*]}"
+
+for k in ${(k)opts}; do
+    echo "$k => ${opts[$k]}"
+done