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fq/pkg/interp/decorator.go

117 lines
2.5 KiB
Go

package interp
import (
"fmt"
"math/big"
"github.com/wader/fq/internal/ansi"
"github.com/wader/fq/pkg/bitio"
)
var PlainDecorator = Decorator{
Column: "|",
ValueColor: func(v any) ansi.Code { return ansi.None },
ByteColor: func(b byte) ansi.Code { return ansi.None },
}
func decoratorFromOptions(opts Options) Decorator {
d := PlainDecorator
if opts.Unicode {
// U+2502 Box Drawings Light Vertical
d.Column = "│"
}
if opts.Color {
colors := opts.Colors
d.Null = ansi.FromString(colors["null"])
d.False = ansi.FromString(colors["false"])
d.True = ansi.FromString(colors["true"])
d.Number = ansi.FromString(colors["number"])
d.String = ansi.FromString(colors["string"])
d.ObjectKey = ansi.FromString(colors["objectkey"])
d.Array = ansi.FromString(colors["array"])
d.Object = ansi.FromString(colors["object"])
d.Index = ansi.FromString(colors["index"])
d.Value = ansi.FromString(colors["value"])
d.DumpHeader = ansi.FromString(colors["dumpheader"])
d.DumpAddr = ansi.FromString(colors["dumpaddr"])
d.Error = ansi.FromString(colors["error"])
d.ValueColor = func(v any) ansi.Code {
switch vv := v.(type) {
case bool:
if vv {
return d.True
}
return d.False
case string,
bitio.Reader,
Binary:
return d.String
case int, float64, int64, uint64:
// TODO: clean up number types
return d.Number
case *big.Int:
return d.Number
case []any:
return d.Array
case map[string]any:
return d.Object
case nil:
return d.Null
default:
panic(fmt.Sprintf("unreachable %v (%T)", v, v))
}
}
byteDefaultColor := ansi.FromString("")
byteColors := map[byte]ansi.Code{}
for i := 0; i < 256; i++ {
byteColors[byte(i)] = byteDefaultColor
}
for _, sr := range opts.ByteColors {
c := ansi.FromString(sr.Value)
for _, r := range sr.Ranges {
for i := r[0]; i <= r[1]; i++ {
byteColors[byte(i)] = c
}
}
}
d.ByteColor = func(b byte) ansi.Code { return byteColors[b] }
} else {
d.ValueColor = func(v any) ansi.Code { return ansi.None }
d.ByteColor = func(b byte) ansi.Code { return ansi.None }
}
return d
}
type Decorator struct {
Null ansi.Code
False ansi.Code
True ansi.Code
Number ansi.Code
String ansi.Code
ObjectKey ansi.Code
Array ansi.Code
Object ansi.Code
Index ansi.Code
Value ansi.Code
DumpHeader ansi.Code
DumpAddr ansi.Code
Error ansi.Code
ValueColor func(v any) ansi.Code
ByteColor func(b byte) ansi.Code
Column string
}