diff options
Diffstat (limited to 'parse.go')
| -rw-r--r-- | parse.go | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -134,6 +134,7 @@ type Parser struct { config Config version string description string + epilogue string // the following field changes during processing of command line arguments lastCmd *command @@ -155,6 +156,14 @@ type Described interface { Description() string } +// Epilogued is the interface that the destination struct should implement to +// add an epilogue string at the bottom of the help message. +type Epilogued interface { + // Epilogue returns the string that will be printed on a line by itself + // at the end of the help message. + Epilogue() string +} + // walkFields calls a function for each field of a struct, recursively expanding struct fields. func walkFields(t reflect.Type, visit func(field reflect.StructField, owner reflect.Type) bool) { walkFieldsImpl(t, visit, nil) @@ -236,6 +245,9 @@ func NewParser(config Config, dests ...interface{}) (*Parser, error) { if dest, ok := dest.(Described); ok { p.description = dest.Description() } + if dest, ok := dest.(Epilogued); ok { + p.epilogue = dest.Epilogue() + } } return &p, nil |