61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
/* SheetGoja (C) SheetJS LLC -- https://sheetjs.com */
|
|
package main
|
|
|
|
import (
|
|
b64 "encoding/base64"
|
|
"fmt"
|
|
"os"
|
|
"io/ioutil"
|
|
"github.com/dop251/goja"
|
|
)
|
|
|
|
func safe_run_file(vm *goja.Runtime, file string) {
|
|
data, err := ioutil.ReadFile(file)
|
|
if err != nil { panic(err) }
|
|
_, err = vm.RunString(string(data))
|
|
if err != nil { panic(err) }
|
|
}
|
|
|
|
func eval_string(vm *goja.Runtime, cmd string) goja.Value {
|
|
v, err := vm.RunString(cmd)
|
|
if err != nil { panic(err) }
|
|
return v
|
|
}
|
|
|
|
func write_type(vm *goja.Runtime, t string) {
|
|
b64str := eval_string(vm, "XLSX.write(wb, {type:'base64', bookType:'" + t + "'})")
|
|
buf, err := b64.StdEncoding.DecodeString(b64str.String());
|
|
if err != nil { panic(err) }
|
|
err = ioutil.WriteFile("sheetjsw." + t, buf, 0644)
|
|
if err != nil { panic(err) }
|
|
}
|
|
|
|
func main() {
|
|
/* initialize */
|
|
vm := goja.New()
|
|
eval_string(vm, "var global = (function(){ return this; }).call(null);")
|
|
|
|
/* load library */
|
|
safe_run_file(vm, "shim.min.js")
|
|
safe_run_file(vm, "xlsx.full.min.js")
|
|
|
|
/* get version string */
|
|
v := eval_string(vm, "XLSX.version")
|
|
fmt.Printf("SheetJS library version %s\n", v)
|
|
|
|
/* read file */
|
|
data, err := ioutil.ReadFile(os.Args[1])
|
|
if err != nil { panic(err) }
|
|
vm.Set("buf", vm.ToValue(vm.NewArrayBuffer(data)))
|
|
|
|
/* parse workbook */
|
|
eval_string(vm, "wb = XLSX.read(buf, {type:'buffer'});")
|
|
eval_string(vm, "ws = wb.Sheets[wb.SheetNames[0]]")
|
|
|
|
/* print CSV */
|
|
csv := eval_string(vm, "XLSX.utils.sheet_to_csv(ws)")
|
|
fmt.Printf("%s\n", csv)
|
|
|
|
/* write file */
|
|
write_type(vm, "xlsb")
|
|
} |