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https://github.com/wader/fq.git
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1b32b42f93
Generate more code More generic and comfortable API Improve and Update format decoder to new API Add some more format tests
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
package interp
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import (
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"encoding/hex"
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"fmt"
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"strconv"
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"github.com/wader/fq/internal/num"
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"github.com/wader/fq/pkg/bitio"
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"github.com/wader/fq/pkg/decode"
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)
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func previewValue(v interface{}, df decode.DisplayFormat) string {
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switch vv := v.(type) {
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case bool:
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if vv {
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return "true"
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}
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return "false"
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case int:
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// TODO: DisplayFormat is weird
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return num.PadFormatInt(int64(vv), decode.DisplayFormatToBase(df), true, 0)
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case int64:
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// TODO: DisplayFormat is weird
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return num.PadFormatInt(vv, decode.DisplayFormatToBase(df), true, 0)
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case uint64:
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return num.PadFormatUint(vv, decode.DisplayFormatToBase(df), true, 0)
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case float64:
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// TODO: float32? better truncated to significant digits?
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return strconv.FormatFloat(vv, 'g', -1, 64)
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case string:
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if len(vv) > 50 {
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return fmt.Sprintf("%q", vv[0:50]) + "..."
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}
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return fmt.Sprintf("%q", vv)
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case []byte:
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if len(vv) > 16 {
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return hex.EncodeToString(vv[0:16]) + "..."
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}
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return hex.EncodeToString(vv)
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case *bitio.Buffer:
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return "raw bits"
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default:
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panic("unreachable")
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}
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}
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