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|
// Package main demonstrates usage.
package main
import (
"bytes"
"fmt"
"io"
"log"
"os"
"github.com/charmbracelet/x/ansi"
)
func main() {
input, err := io.ReadAll(os.Stdin)
if err != nil && err != io.EOF {
log.Fatal(err)
}
var state byte
p := ansi.NewParser()
for len(input) > 0 {
seq, width, n, newState := ansi.DecodeSequence(input, state, p)
switch {
case ansi.HasOscPrefix(seq):
fmt.Printf("OSC sequence: %q, cmd: %d, data: %q", seq, p.Command(), p.Data())
fmt.Println()
case ansi.HasDcsPrefix(seq):
c := ansi.Cmd(p.Command())
intermed, prefix, cmd := c.Intermediate(), c.Prefix(), c.Final()
fmt.Printf("DCS sequence: %q,", seq)
if intermed != 0 {
fmt.Printf(" intermed: %q,", intermed)
}
if prefix != 0 {
fmt.Printf(" prefix: %q,", prefix)
}
if cmd != 0 {
fmt.Printf(" cmd: %q,", cmd)
}
fmt.Print(" params: [")
var more bool
params := p.Params()
for i, r := range params {
param, hasMore := r.Param(-1), r.HasMore()
if more != hasMore {
fmt.Print("[")
}
if param == -1 {
fmt.Print("MISSING")
} else {
fmt.Printf("%d", param)
}
if i != len(params)-1 {
fmt.Print(", ")
}
if more != hasMore {
fmt.Print("]")
}
more = hasMore
}
fmt.Printf("], data: %q", p.Data())
fmt.Println()
case ansi.HasSosPrefix(seq):
fmt.Printf("SOS sequence: %q, data: %q", seq, p.Data())
fmt.Println()
case ansi.HasPmPrefix(seq):
fmt.Printf("PM sequence: %q, data: %q", seq, p.Data())
fmt.Println()
case ansi.HasApcPrefix(seq):
fmt.Printf("APC sequence: %q, data: %q", seq, p.Data())
fmt.Println()
case ansi.HasCsiPrefix(seq):
c := ansi.Cmd(p.Command())
intermed, prefix, cmd := c.Intermediate(), c.Prefix(), c.Final()
fmt.Printf("CSI sequence: %q,", seq)
if intermed != 0 {
fmt.Printf(" intermed: %q,", intermed)
}
if prefix != 0 {
fmt.Printf(" prefix: %q,", prefix)
}
if cmd != 0 {
fmt.Printf(" cmd: %q,", cmd)
}
fmt.Print(" params: [")
var more bool
params := p.Params()
for i, r := range params {
param, hasMore := r.Param(-1), r.HasMore()
if hasMore && more != hasMore {
fmt.Print("[")
}
if param == -1 {
fmt.Print("MISSING")
} else {
fmt.Printf("%d", param)
}
if !hasMore && more != hasMore {
fmt.Print("]")
}
if i != len(params)-1 {
fmt.Print(", ")
}
more = hasMore
}
fmt.Print("]")
fmt.Println()
case ansi.HasEscPrefix(seq):
if !bytes.Equal(seq, []byte{ansi.ESC}) {
c := ansi.Cmd(p.Command())
intermed, cmd := c.Intermediate(), c.Final()
fmt.Printf("ESC sequence: %q", seq)
if intermed != 0 {
fmt.Printf(", intermed: %q", intermed)
}
if cmd != 0 {
fmt.Printf(", cmd: %q", cmd)
}
fmt.Println()
break
}
fallthrough
default:
if width > 0 {
fmt.Printf("Print: %s, width: %d", seq, width)
} else {
fmt.Printf("Execute: %q", seq)
}
fmt.Println()
}
state = newState
input = input[n:]
}
}
|
