Function write_file_from_string 

pub fn write_file_from_string(
    filename: &str,
    content: &str,
    format: Format,
) -> Result<()>

This function writes a string to a file in the specified Unicode format Writes a string to a file in the specified Unicode format Writes string content to a file with the specified Unicode format and BOM.

Creates or overwrites a file with the given content, adding the appropriate byte order mark based on the specified format. Handles Unicode encoding conversions as needed.

Arguments

• filename - Path where the file will be created/written
• content - String content to write to the file
• format - Unicode format specifying encoding and BOM requirements

Returns

Result indicating success or an IO error