I am using Windows 10 and InDesign CS6. I would like to take 2 files, mix the content line by line and output to a third file to make an ebook, as follows.
INPUT FILE 1 (e.g. TXT, XML, SQL, etc.)
[This file is already in a line by line format -- each line is demarcated by a return.]
line 1
line 2
line 3
etc.
INPUT FILE 2 (INDD)
[This file is in the form of flowing text and each line will have to be demarcated e.g. 1 line = every text string that starts with capital letter and ends with "full stop + space".]
line A [footnote 1]
line B [footnote 2]
line C [footnote 3]
etc.
OUTPUT FILE 3 (e.g. EPUB, HTML, XML, etc.)
line 1
line A [footnote 1]
line 2
line B [footnote 2]
line 3
line C [footnote 3]
etc.
I found some relevant discussions here and here (the gist is that *nix systems have a paste function, Excel has a concertina function, and a method in the DOS command prompt and some other scripting methods were suggested). I am afraid these discussions are a bit cryptic for me and do not help my situation completely. I am computer literate but do not have coding experience so am looking for some help here to show me the way and get started.
Any suggestions for a reasonably practical work flow would be appreciated (it does not need to be completely automated). I'd also like to explore if Input File 1 was, say, a DOC or an INDD file of flowing, undemarcated text. It would be nice to have some flexibility in the workflow.