mirror of
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[compress/shoco] Add short string compressor.
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Jeroen van Rijn
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Copyright (c) 2016-2021 Ginger Bill. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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<p align="center">
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<img src="misc/logo-slim.png" alt="Odin logo" style="width:65%">
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<br/>
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The Data-Oriented Language for Sane Software Development.
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<br/>
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<br/>
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<a href="https://github.com/odin-lang/odin/releases/latest">
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<img src="https://img.shields.io/github/release/odin-lang/odin.svg">
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</a>
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<a href="https://github.com/odin-lang/odin/releases/latest">
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<img src="https://img.shields.io/badge/platforms-Windows%20|%20Linux%20|%20macOS-green.svg">
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</a>
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<br>
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<a href="https://discord.gg/odinlang">
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<img src="https://img.shields.io/discord/568138951836172421?logo=discord">
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</a>
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<a href="https://github.com/odin-lang/odin/actions">
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<img src="https://github.com/odin-lang/odin/workflows/CI/badge.svg?branch=master&event=push">
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</a>
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</p>
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# The Odin Programming Language
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Odin is a general-purpose programming language with distinct typing, built for high performance, modern systems, and built-in data-oriented data types. The Odin Programming Language, the C alternative for the joy of programming.
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Website: [https://odin-lang.org/](https://odin-lang.org/)
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```odin
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package main
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import "core:fmt"
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main :: proc() {
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program := "+ + * 😃 - /"
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accumulator := 0
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for token in program {
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switch token {
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case '+': accumulator += 1
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case '-': accumulator -= 1
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case '*': accumulator *= 2
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case '/': accumulator /= 2
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case '😃': accumulator *= accumulator
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case: // Ignore everything else
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}
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}
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fmt.printf("The program \"%s\" calculates the value %d\n",
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program, accumulator)
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}
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```
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## Documentation
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#### [Getting Started](https://odin-lang.org/docs/install)
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Instructions for downloading and installing the Odin compiler and libraries.
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#### [Nightly Builds](https://odin-lang.org/docs/nightly/)
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Get the latest nightly builds of Odin.
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### Learning Odin
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#### [Overview of Odin](https://odin-lang.org/docs/overview)
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An overview of the Odin programming language.
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#### [Frequently Asked Questions (FAQ)](https://odin-lang.org/docs/faq)
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Answers to common questions about Odin.
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#### [Packages](https://pkg.odin-lang.org/)
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Documentation for all the official packages part of the [core](https://pkg.odin-lang.org/core/) and [vendor](https://pkg.odin-lang.org/vendor/) library collections.
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#### [The Odin Wiki](https://github.com/odin-lang/Odin/wiki)
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A wiki maintained by the Odin community.
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#### [Odin Discord](https://discord.gg/sVBPHEv)
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Get live support and talk with other odiners on the Odin Discord.
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### Articles
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#### [The Odin Blog](https://odin-lang.org/news/)
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The official blog of the Odin programming language, featuring announcements, news, and in-depth articles by the Odin team and guests.
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## Warnings
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* The Odin compiler is still in development.
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@@ -7,13 +7,14 @@ package test_core_compress
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List of contributors:
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Jeroen van Rijn: Initial implementation.
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A test suite for ZLIB, GZIP.
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A test suite for ZLIB, GZIP and Shoco.
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*/
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import "core:testing"
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import "core:compress/zlib"
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import "core:compress/gzip"
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import "core:compress/shoco"
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import "core:bytes"
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import "core:fmt"
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@@ -48,6 +49,7 @@ main :: proc() {
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t := testing.T{w=w}
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zlib_test(&t)
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gzip_test(&t)
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shoco_test(&t)
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fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
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if TEST_fail > 0 {
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@@ -134,3 +136,56 @@ gzip_test :: proc(t: ^testing.T) {
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expect(t, false, error)
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}
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}
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@test
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shoco_test :: proc(t: ^testing.T) {
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Shoco_Tests :: []struct{
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compressed: []u8,
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raw: []u8,
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short_pack: int,
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short_sentinel: int,
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}{
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{ #load("../assets/Shoco/README.md.shoco"), #load("../assets/Shoco/README.md"), 10, 1006 },
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{ #load("../assets/Shoco/LICENSE.shoco"), #load("../assets/Shoco/LICENSE"), 25, 68 },
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}
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for v in Shoco_Tests {
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expected_raw := len(v.raw)
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expected_compressed := len(v.compressed)
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biggest_unpacked := shoco.decompress_bound(expected_compressed)
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biggest_packed := shoco.compress_bound(expected_raw)
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buffer := make([]u8, max(biggest_packed, biggest_unpacked))
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defer delete(buffer)
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size, err := shoco.decompress(v.compressed, buffer[:])
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msg := fmt.tprintf("Expected `decompress` to return `nil`, got %v", err)
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expect(t, err == nil, msg)
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msg = fmt.tprintf("Decompressed %v bytes into %v. Expected to decompress into %v bytes.", len(v.compressed), size, expected_raw)
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expect(t, size == expected_raw, msg)
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expect(t, string(buffer[:size]) == string(v.raw), "Decompressed contents don't match.")
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size, err = shoco.compress(string(v.raw), buffer[:])
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expect(t, err == nil, "Expected `compress` to return `nil`.")
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msg = fmt.tprintf("Compressed %v bytes into %v. Expected to compress into %v bytes.", expected_raw, size, expected_compressed)
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expect(t, size == expected_compressed, msg)
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size, err = shoco.decompress(v.compressed, buffer[:expected_raw - 10])
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msg = fmt.tprintf("Decompressing into too small a buffer returned %v, expected `.Output_Too_Short`", err)
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expect(t, err == .Output_Too_Short, msg)
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size, err = shoco.compress(string(v.raw), buffer[:expected_compressed - 10])
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msg = fmt.tprintf("Compressing into too small a buffer returned %v, expected `.Output_Too_Short`", err)
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expect(t, err == .Output_Too_Short, msg)
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size, err = shoco.decompress(v.compressed[:v.short_pack], buffer[:])
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expect(t, err == .Stream_Too_Short, "Expected `decompress` to return `Stream_Too_Short` because there was no more data after selecting a pack.")
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size, err = shoco.decompress(v.compressed[:v.short_sentinel], buffer[:])
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expect(t, err == .Stream_Too_Short, "Expected `decompress` to return `Stream_Too_Short` because there was no more data after non-ASCII sentinel.")
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}
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}
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