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main.go
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main.go
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package main
import (
"encoding/json"
"log"
"os"
"strings"
"code.google.com/p/go.net/html"
)
var trans = make(map[string]string)
func generalNode(n *html.Node) {
translate := false
if n.Type == html.ElementNode {
for _, a := range n.Attr {
if a.Key == "translate" {
translate = true
break
}
}
} else if n.Type == html.TextNode {
v := strings.TrimSpace(n.Data)
if len(v) > 1 && !(strings.HasPrefix(v, "{{") && strings.HasSuffix(v, "}}")) {
log.Println("Untranslated text node:")
log.Print("\t" + v)
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
if translate {
inTranslate(c)
} else {
generalNode(c)
}
}
}
func inTranslate(n *html.Node) {
if n.Type == html.TextNode {
v := strings.TrimSpace(n.Data)
if _, ok := trans[v]; !ok {
av := strings.Replace(v, "{%", "{{", -1)
av = strings.Replace(av, "%}", "}}", -1)
trans[v] = av
}
} else {
log.Println("translate node with non-text child <")
log.Println(n)
}
if n.FirstChild != nil {
log.Println("translate node has children:")
log.Println(n.Data)
}
}
func main() {
fd, err := os.Open(os.Args[1])
if err != nil {
log.Fatal(err)
}
err = json.NewDecoder(fd).Decode(&trans)
if err != nil {
log.Fatal(err)
}
fd.Close()
doc, err := html.Parse(os.Stdin)
if err != nil {
log.Fatal(err)
}
generalNode(doc)
bs, err := json.MarshalIndent(trans, "", " ")
if err != nil {
log.Fatal(err)
}
os.Stdout.Write(bs)
}