The main objective is to reformat old text files that I collected from BBS days (e.g. Hitel) so that I can use ebook-convert from Calibre to make epub out of.
This program does two things.
- Find a paragraph by combining multiple lines
- Split each paragrah into sentences if possible
Main idea is to combine multiple lines into one line if they look like one paragraph.
The stage collects multiple lines until it finds end of the sentence and combines the lines so far into one string.
A line is considered as the end of the sentence, if it ends with any of the following: ., ", ], ), -.
In this stage, 'sentence' is defined as a block of text ending with . followed by space.
Between a pair of sentences, \n is added.
This stage is needed because I found that ebook-convert.exe from Calibre have problems with really long lines.
Convert a text file (which should be in UTF-8).
combine_lines input.txt output.txt
Then use ebook-convert.exe from Calibre to make epub.
ebook-convert output.txt output.epub --paragraph-type="single" --insert-metadata --no-default-epub-cover --flow-size=200 --title="Book title" --authors="Author Name"