forked from seehuhn/epublatex
/
tokenize.go
65 lines (56 loc) · 1.55 KB
/
tokenize.go
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// tokenize.go -
// Copyright (C) 2016 Jochen Voss <voss@seehuhn.de>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package latex
import (
"encoding/gob"
"os"
"path/filepath"
"github.com/seehuhn/epublatex/latex/tokenizer"
)
func (conv *converter) Tokenize(inputFileName string) error {
toks := tokenizer.NewTokenizer()
defer toks.Close()
toks.Include(inputFileName)
return conv.runTokenizer(toks)
}
func (conv *converter) runTokenizer(toks *tokenizer.Tokenizer) (err error) {
conv.TokenFileName = filepath.Join(conv.WorkDir, "tokens.dat")
out, err := os.Create(conv.TokenFileName)
if err != nil {
return err
}
defer out.Close()
c := make(chan *tokenizer.Token)
errChan := make(chan error, 1)
go func() {
e2 := toks.ParseTex(c)
close(c)
errChan <- e2
}()
enc := gob.NewEncoder(out)
for tok := range c {
e2 := enc.Encode(tok)
if err == nil {
err = e2
}
}
e2 := <-errChan
if err == nil {
err = e2
}
conv.SourceDir = toks.BaseDir
return
}