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SPDX is an ISO standard for describing licenses in a computer readable format, which is useful when applying license compliance tools and the like to source code. In addition to ensuring that the Wuffs C distribution is properly annotated to the benefit of projects using Wuffs and SPDX-supporting tools, add it everywhere else where there's a license in this repo for consistency, too.
43 lines
969 B
Go
43 lines
969 B
Go
// Copyright 2017 The Wuffs Authors.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//
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// SPDX-License-Identifier: Apache-2.0 OR MIT
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//go:build ignore
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// +build ignore
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package main
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// compress-giflzw.go applies GIF's LZW-compression. The initial byte in each
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// written file is the LZW literal width.
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//
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// Usage: go run compress-giflzw.go < pi.txt > pi.txt.giflzw
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import (
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"compress/lzw"
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"io"
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"os"
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)
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func main() {
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if err := main1(); err != nil {
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os.Stderr.WriteString(err.Error() + "\n")
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os.Exit(1)
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}
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}
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func main1() error {
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os.Stdout.WriteString("\x08")
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w := lzw.NewWriter(os.Stdout, lzw.LSB, 8)
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if _, err := io.Copy(w, os.Stdin); err != nil {
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w.Close()
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return err
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}
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return w.Close()
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}
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