67 lines
1.3 KiB
Go
67 lines
1.3 KiB
Go
package cli
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import (
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"fmt"
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"strings"
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)
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type StringFlag = FlagBase[string, StringConfig, stringValue]
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// StringConfig defines the configuration for string flags
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type StringConfig struct {
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// Whether to trim whitespace of parsed value
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TrimSpace bool
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}
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// -- string Value
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type stringValue struct {
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destination *string
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trimSpace bool
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}
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// Below functions are to satisfy the ValueCreator interface
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func (s stringValue) Create(val string, p *string, c StringConfig) Value {
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*p = val
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return &stringValue{
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destination: p,
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trimSpace: c.TrimSpace,
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}
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}
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func (s stringValue) ToString(val string) string {
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if val == "" {
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return val
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}
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return fmt.Sprintf("%q", val)
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}
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// Below functions are to satisfy the flag.Value interface
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func (s *stringValue) Set(val string) error {
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if s.trimSpace {
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val = strings.TrimSpace(val)
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}
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*s.destination = val
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return nil
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}
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func (s *stringValue) Get() any { return *s.destination }
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func (s *stringValue) String() string {
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if s.destination != nil {
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return *s.destination
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}
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return ""
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}
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func (cmd *Command) String(name string) string {
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if v, ok := cmd.Value(name).(string); ok {
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tracef("string available for flag name %[1]q with value=%[2]v (cmd=%[3]q)", name, v, cmd.Name)
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return v
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}
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tracef("string NOT available for flag name %[1]q (cmd=%[2]q)", name, cmd.Name)
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return ""
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}
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