Gopher2600/debugger/terminal/prompt.go
2024-07-06 22:03:11 +01:00

83 lines
2 KiB
Go

// 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 (
"fmt"
"strings"
"github.com/jetsetilly/gopher2600/coprocessor"
)
// Prompt specifies the prompt text and the prompt style
type Prompt struct {
Type PromptType
// the content
Content string
// the current CoProcYield information. used to add additional information
// to Content string
CoProcYield coprocessor.CoProcYield
// whether the terminal is recording input
Recording bool
}
// PromptType identifies the type of information in the prompt.
type PromptType int
// List of prompt types.
const (
PromptTypeCPUStep PromptType = iota
PromptTypeVideoStep
PromptTypeCartYield
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(strings.TrimSpace(p.Content))
if !p.CoProcYield.Type.Normal() {
s.WriteString(fmt.Sprintf(" (%s)", p.CoProcYield.Type))
}
s.WriteString(" ]")
switch p.Type {
case PromptTypeCPUStep:
s.WriteString(" >> ")
case PromptTypeVideoStep:
s.WriteString(" > ")
case PromptTypeCartYield:
s.WriteString(" . ")
}
return s.String()
}