Create filename parse functions

utils.sh

@@ -21,8 +21,10 @@ text_cyan="\033[1;36m"
 text_yellow="\033[1;33m"
 text_white="\033[1;37m"
 
-# Function Return.
+# Function Return Variables.
 return_value=""
+file_name=""
+file_extension=""
 
 #endregion Global Utility Variables
 
@@ -134,6 +136,72 @@ function get_directory_name () {
     fi
 }
 
+
+###
+ # Parses passed file, getting base file name and file extension.
+ ##
+function parse_file_name () {
+
+    # Check number of passed function args.
+    if [[ ${#} == 1 ]]
+    then
+        # Expected number of args passed. Continue.
+        if [[ -f ${1} ]]
+        then
+            # Handle for file.
+            get_absolute_path ${1}
+            return_value=${return_value##*/}
+
+            file_name=""
+            file_extension=""
+            _recurse_file_extension ${return_value}
+        else
+            echo -e "${text_red}Passed value ( ${1} ) is not a valid file.${text_reset}"
+            exit 1
+        fi
+
+    # Handle for too many args.
+    elif [[ ${#} > 1 ]]
+    then
+        echo -e "${text_red}Too many args passed. Expected one arg, received ${#}.${text_reset}"
+        exit 1
+
+    # Handle for too few args.
+    else
+        echo -e "${text_red}Too few args passed. Expected one arg, received 0.${text_reset}"
+        exit 1
+    fi
+}
+
+
+###
+ # Recursive helper function for parse_file_name().
+ # Determines base file name and full file extension.
+ ##
+function _recurse_file_extension () {
+    local passed_value=${1}
+    local parsed_extension=${passed_value##*.}
+
+    # Check if file extension was found. Occurs when variables are not identical.
+    if [[ ${parsed_extension} != ${passed_value} ]]
+    then
+        # Extension found. Iterate once more.
+        file_name=${passed_value%.${parsed_extension}}
+
+        # Handle if global var is currently empty or not.
+        if [[ ${file_extension} == "" ]]
+        then
+            file_extension=".${parsed_extension}"
+        else
+            file_extension=".${parsed_extension}${file_extension}"
+        fi
+
+        # Call recursive function once more.
+        _recurse_file_extension ${file_name}
+    fi
+}
+
+
 #endregion Directory Functions