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// Copyright 2013 Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package getopt
import (
"bytes"
"fmt"
"path"
"reflect"
"runtime"
"strings"
)
var errorString string
func reset() {
CommandLine.shortOptions = make(map[rune]*option)
CommandLine.longOptions = make(map[string]*option)
CommandLine.options = nil
CommandLine.args = nil
CommandLine.program = ""
errorString = ""
}
func parse(args []string) {
err := CommandLine.Getopt(args, nil)
if err != nil {
b := &bytes.Buffer{}
fmt.Fprintln(b, CommandLine.program+": "+err.Error())
CommandLine.PrintUsage(b)
errorString = b.String()
}
}
func badSlice(a, b []string) bool {
if len(a) != len(b) {
return true
}
for x, v := range a {
if b[x] != v {
return true
}
}
return false
}
func loc() string {
_, file, line, _ := runtime.Caller(1)
return fmt.Sprintf("%s:%d", path.Base(file), line)
}
func (o *option) Equal(opt *option) bool {
if o.value != nil && opt.value == nil {
return false
}
if o.value == nil && opt.value != nil {
return false
}
if o.value != nil && o.value.String() != opt.value.String() {
return false
}
oc := *o
optc := *opt
oc.value = nil
optc.value = nil
return reflect.DeepEqual(&oc, &optc)
}
func newStringValue(s string) *stringValue { return (*stringValue)(&s) }
func checkError(err string) string {
switch {
case err == errorString:
return ""
case err == "":
return fmt.Sprintf("unexpected error %q", errorString)
case errorString == "":
return fmt.Sprintf("did not get expected error %q", err)
case !strings.HasPrefix(errorString, err):
return fmt.Sprintf("got error %q, want %q", errorString, err)
}
return ""
}
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