How to Trim Whitespace in Tcl - Code Snippet

# Task: Trim Whitespace
# Language: Tcl

proc trim_whitespace() {
    # Implementation for Trim Whitespace
    set result = ...; # Initialize variable
    # TODO: Implement core logic here
    # Step 1: Prepare data
    # Step 2: Process Trim Whitespace
    puts("Done");
}