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// Copyright 2019 Nick White.
// Use of this source code is governed by the GPLv3
// license that can be found in the LICENSE file.
package main
import (
"encoding/xml"
"flag"
"fmt"
"io/ioutil"
"log"
"os"
"rescribe.xyz/utils/pkg/hocr"
)
// BUGS:
// - loses all elements not captured in hocr structure such as html headings
// might be best to copy the header and footer separately and put the hocr in between, but would still need to ensure all elements are captured
// - loses any formatting; doesn't need to be identical, but e.g. linebreaks after elements would be handy
// - need to handle OcrChar
func main() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: dehyphenate hocrin hocrout\n")
fmt.Fprintf(os.Stderr, "Dehyphenates a hocr file.\n")
flag.PrintDefaults()
}
flag.Parse()
if flag.NArg() != 2 {
flag.Usage()
os.Exit(1)
}
in, err := ioutil.ReadFile(flag.Arg(0))
if err != nil {
log.Fatalf("Error reading %s: %v", flag.Arg(1), err)
}
h, err := hocr.Parse(in)
if err != nil {
log.Fatal(err)
}
for i, l := range h.Lines {
w := l.Words[len(l.Words)-1]
if len(w.Chars) == 0 {
if len(w.Text) > 0 && w.Text[len(w.Text) - 1] == '-' {
h.Lines[i].Words[len(l.Words)-1].Text = w.Text[0:len(w.Text)-1] + h.Lines[i+1].Words[0].Text
h.Lines[i+1].Words[0].Text = ""
}
} else {
log.Printf("TODO: handle OcrChar")
}
}
f, err := os.Create(flag.Arg(1))
if err != nil {
log.Fatalf("Error creating file %s: %v", flag.Arg(1), err)
}
defer f.Close()
e := xml.NewEncoder(f)
err = e.Encode(h)
if err != nil {
log.Fatalf("Error encoding XML: %v", err)
}
}
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