blob: f2501292078d1c0db12bf1af0333da8093beedcc [file] [log] [blame]
// Copyright 2020 The Wuffs Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build ignore
package main
// base38-encode.go prints the base38 encoding of each argument.
//
// Usage: go run base38-encode.go gif json
import (
"fmt"
"os"
"strings"
"github.com/google/wuffs/lib/base38"
)
func main() {
if err := main1(); err != nil {
os.Stderr.WriteString(err.Error() + "\n")
os.Exit(1)
}
}
func main1() error {
args := os.Args
if len(args) > 1 {
for _, arg := range args[1:] {
arg := (strings.ToLower(arg) + " ")[:4]
if code, ok := base38.Encode(arg); ok {
code0 := fmt.Sprintf("0x%06X", code)
code1 := fmt.Sprintf("0x%08X", code<<10)
fmt.Printf("%s code: %s %s code<<10: %s %s\n",
arg, code0, underscore(code0), code1, underscore(code1))
} else {
fmt.Printf("%s -\n", arg)
}
}
}
return nil
}
func underscore(s string) string {
if n := len(s) - 4; n > 0 {
return s[:n] + "_" + s[n:]
}
return s
}