cmd/tai64nlocal

[gotai64n.git] / cmd / tai64nlocal / main.go

diff --git a/cmd/tai64nlocal/main.go b/cmd/tai64nlocal/main.go
new file mode 100644 (file)
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+++ b/cmd/tai64nlocal/main.go
@@ -0,0 +1,58 @@
+/*
+go.cypherpunks.ru/tai64n -- Pure Go TAI64N implementation
+Copyright (C) 2020 Sergey Matveev <stargrave@stargrave.org>
+
+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, version 3 of the License.
+
+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 main
+
+import (
+       "bufio"
+       "log"
+       "os"
+       "strings"
+       "time"
+
+       "go.cypherpunks.ru/tai64n"
+)
+
+func main() {
+       log.SetFlags(0)
+       scanner := bufio.NewScanner(os.Stdin)
+       var err error
+       var s string
+       var sep int
+       var t time.Time
+       for {
+               if !scanner.Scan() {
+                       if err = scanner.Err(); err != nil {
+                               log.Fatalln(err)
+                       }
+                       break
+               }
+               s = scanner.Text()
+               if s[0] != '@' {
+                       os.Stdout.WriteString(s + "\n")
+               }
+               sep = strings.IndexByte(s, byte(' '))
+               if sep == -1 {
+                       os.Stdout.WriteString(s + "\n")
+               }
+               t, err = tai64n.Decode(s[1:sep])
+               if err != nil {
+                       log.Fatalln(err)
+               }
+               os.Stdout.WriteString(t.Format(tai64n.LocalFmt) + s[sep:] + "\n")
+       }
+}