Pass arguments to function as environment variable MO_ALLOW_FUNCTION_ARGUMENTS

demo/function-args

@@ -0,0 +1,29 @@
+#!/bin/bash
+#
+# This sources a simple script with the env. variables needed for the template.
+
+cd "$(dirname "$0")" # Go to the script's directory
+source ../mo
+
+export NAME="Alex"
+export ARRAY=( AAA BBB CCC )
+
+# Include an external template
+INCLUDE() {
+    cat "$MO_FUNCTION_ARGS"
+}
+
+# Print section title
+TITLE() {
+    echo "+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"
+    echo "$MO_FUNCTION_ARGS"
+    echo "+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"
+}
+
+cat <<EOF | mo -u
+{{TITLE Part 1}}
+{{INCLUDE function-args-part1}}
+
+{{TITLE Part 2}}
+{{INCLUDE function-args-part2}}
+EOF

demo/function-args-part1

@@ -0,0 +1 @@
+Hello, my name is {{NAME}}.

demo/function-args-part2

@@ -0,0 +1,3 @@
+{{#ARRAY}}
+    * {{.}}
+{{/ARRAY}}

mo

@@ -62,8 +62,7 @@
 #                       options and arguments. This puts the content from the
 #                       template directly into an eval statement. Use with
 #                       extreme care.
-# MO_ARGS             - Arguments passed to the function,
-#                       only if MO_ALLOW_FUNCTION_ARGUMENTS is unset
+# MO_FUNCTION_ARGS    - Arguments passed to the function
 # MO_FAIL_ON_UNSET    - When set to a non-empty value, expansion of an unset
 #                       env variable will be aborted with an error.
 # MO_FALSE_IS_EMPTY   - When set to a non-empty value, the string "false"
@@ -156,16 +155,17 @@ mo() (
 #
 # Returns nothing.
 moCallFunction() {
-    local moArgs
+    local moArgs moFunctionArgs
+
+    moArgs=()
+    moTrimWhitespace moFunctionArgs "$3"
 
     # shellcheck disable=SC2031
     if [[ -n "${MO_ALLOW_FUNCTION_ARGUMENTS-}" ]]; then
         moArgs=$3
-        echo -n "$2" | eval "$1" "$moArgs"
-    else
-        moTrimWhitespace moArgs "$3"
-        echo -n "$2" | MO_ARGS="$moArgs" eval "$1"
     fi
+
+    echo -n "$2" | MO_FUNCTION_ARGS="$moFunctionArgs" eval "$1" "$moArgs"
 }
 
 

tests/function-args-read.env

@@ -1,3 +1,3 @@
 testArgs() {
-    echo "$MO_ARGS"
+    echo "$MO_FUNCTION_ARGS"
 }