Software to annotate EPUB files (with capability to export the annotations)

Question

I am looking for a software for Android and/or Linux to annotate EPUB files.

It should have the capability to export the annotations. Preferably in XML or other easily parsable format.

Answer 1

I think it is not possible using only 1 software, but maybe you can do that this way:

1. Install pale moon, a prerrequisite of epub reader Lucidor

2. Install Lucidor

   wget "http://lucidor.org/get.php?id=lucidor_0.9.15-1_all.deb" -O lucidor09.deb
   sudo apt install ./lucidor09.deb
   

3. Make annotations in Lucidor (for a guide, look here) and locate the file's annotations.sqlite path

4. Now, you have to install R and a pair of packages

   install.packages("RSQLite")  # same for XML
   

5. Export annotations as xml Ref 1, Ref 2

   library("RSQLite")
   sqlite    <- dbDriver("SQLite")
   
   # replace with correct PATH:
   db <- dbConnect(sqlite,"/home/USERNAME/.ordbrand/lucidor/b2e53o8w.default/lucifox/annotations.sqlite")
   
   dfannotAnnot<-as.data.frame(dbReadTable(db,"annotations") )
   dfannotTarg<-as.data.frame(dbReadTable(db,"targets") )
   
   dataframe<-cbind(dfannotAnnot,dfannotTarg)
   
   library(XML)
   xml <- xmlTree()
   
   xml$addTag("document", close=FALSE)
   for (i in 1:nrow(dataframe)) {
     xml$addTag("row", close=FALSE)
     for (j in names(dataframe)) {
       xml$addTag(j, dataframe[i, j])
     }
     xml$closeTag()
   }
   #save to file
   getwd()
   cat(saveXML(xml), file="Annotations.xml")