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prompt.go
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prompt.go
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// This file is part of Gopher2600.
//
// Gopher2600 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, either version 3 of the License, or
// (at your option) any later version.
//
// Gopher2600 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 Gopher2600. If not, see <https://www.gnu.org/licenses/>.
package terminal
import "strings"
// Prompt specifies the prompt text and the prompt style. For CPUStep
// and VideoStep prompt types thre is some additional information that
// can be used to decorate the prompt.
type Prompt struct {
Content string
Type PromptType
// valid for PromptTypeCPUStep and PromptTypeVideoStep
CPURdy bool
Recording bool
}
// PromptType identifies the type of information in the prompt.
type PromptType int
// List of prompt types.
const (
PromptTypeCPUStep PromptType = iota
PromptTypeVideoStep
PromptTypeConfirm
)
// String returns the prompt with "standard" decordation. Good for terminals
// with no graphical capabilities at all. A GUI based terminal interface may
// choose not to use this.
func (p Prompt) String() string {
if p.Type == PromptTypeConfirm {
return p.Content
}
s := strings.Builder{}
s.WriteString("[")
if p.Recording {
s.WriteString("(rec)")
}
s.WriteString(" ")
s.WriteString(p.Content)
s.WriteString(" ]")
if !p.CPURdy {
s.WriteString(" !")
}
if p.Type == PromptTypeCPUStep {
s.WriteString(" >> ")
} else {
s.WriteString(" > ")
}
return s.String()
}