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path: root/cmd/gobtex/main.go
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package main

import (
	"bytes"
	"fmt"
	"html/template"
	"log"
	"os"
	"strings"

	"github.com/Thibauth/bibtex"
)

func printfne(format string, a ...interface{}) string {
	if fmt.Sprint(a...) == "" {
		return ""
	} else {
		return fmt.Sprintf(format, a...)
	}
}

func dashify(s string) string {
	return strings.Replace(s, "-", "–", -1)
}

func main() {
	fname := os.Args[1]
	f, err := os.Open(fname)
	if err != nil {
		log.Fatal(err)
	}
	db, err := bibtex.Parse(f, false)
	db.Flatten()
	db.Resolve()
	db.SplitNames()
	db.UnTex()
	tmpl := template.New("test.tmpl").Funcs(template.FuncMap{
		"untex":    bibtex.UnTex,
		"add":      func(a, b int) int { return a + b },
		"ne":       printfne,
		"dashify":  dashify,
		"contains": strings.ContainsAny,
	})
	tmpl, err = tmpl.ParseFiles("test.tmpl")
	if err != nil {
		log.Fatal(err)
	}
	err = tmpl.Execute(os.Stdout, db)
	if err != nil {
		log.Fatal(err)
	}
}

func Marshal(db *bibtex.Database) string {
	var buf bytes.Buffer
	for _, id := range db.SNames {
		buf.WriteString("@string{" + id + " = " +
			db.Strings[id].Marshal() + "}\n\n")

	}
	if db.Preamble != nil {
		buf.WriteString("@preamble{" + db.Preamble.Marshal() + "}\n\n")
	}
	res := make([]string, len(db.EKeys))
	for i, key := range db.EKeys {
		res[i] = db.Entries[key].Marshal()
	}
	buf.WriteString(strings.Join(res, "\n\n"))
	return buf.String()
}