Algorithm (Workflow)

This function, writetextfile, is designed to write a character string into a text file. It is part of the SolidGeometry library, version 5.2, and was created by Tim C. Lueth in 2022.

Input Parameters

• fname: This is the filename for the desktop or the full path where the text file will be saved. If a full path is not provided, the function will assume the file is to be saved on the desktop.
• txt: This is the ASCII text that will be written into the file. If not provided, the current date in the format 'yyyy-MM-dd' will be used as the default text.

Output Results

• wfname: This is the full filename where the text has been written.

Algorithm Steps

1. The function begins by retrieving the filename (fname) and text (txt) from the input arguments using the getfuncparams function. If txt is not provided, it defaults to the current date.
2. The text is converted to a character array using char(uint8(txt)).
3. If the filename does not contain a file separator, it is assumed to be a desktop file, and the desktopdir function is used to get the full path.
4. The file is opened for writing in text mode with UTF-8 encoding using fopen. The mode 'wt+' is used to open the file for writing and reading, and the file is created if it does not exist.
5. If the file cannot be opened, an error is thrown.
6. The text is written to the file using fwrite with 'uint8' data type.
7. The file is closed using fclose.
8. The function returns the full filename (wfname).

Example

To write the text "this is a test" into a file named "test" on the desktop, you would call the function as follows:

writetextfile('test', 'this is a test')