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When you say "should not appear at the beginning of a new line" , is that based on the grammar rules? Yes, that's the grammar rules. Some punctuation marks, such as comma, period and back quotation mark, cannot appear at the beginning of a new line. Of course, some punctuation marks, such as the front quotation mark, cannot appear at the end of a new line. This is the writing rule of East Asia. Besides, the inability to vertically arrange text is also an important factor affecting East Asian typesetting These are the only problems that I have encountered that makes me unable to use the software normally, and for this reason, I can't recommend it to my friends. It's really a pity.

I also hope to add the function of preventing punctuation from appearing at the beginning of the first line as soon as possible