134 lines
		
	
	
		
			6.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
			
		
		
	
	
			134 lines
		
	
	
		
			6.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
| ============
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| These pieces of code were ported from dotnet/corefx:
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| 
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| syntax/charclass.go (from RegexCharClass.cs): ported to use the built-in Go unicode classes.  Canonicalize is 
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|     a direct port, but most of the other code required large changes because the C# implementation 
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|     used a string to represent the CharSet data structure and I cleaned that up in my implementation.
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| 
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| syntax/code.go (from RegexCode.cs): ported literally with various cleanups and layout to make it more Go-ish.
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| 
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| syntax/escape.go (from RegexParser.cs): ported Escape method and added some optimizations.  Unescape is inspired by 
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|     the C# implementation but couldn't be directly ported because of the lack of do-while syntax in Go.
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| 
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| syntax/parser.go (from RegexpParser.cs and RegexOptions.cs): ported parser struct and associated methods as 
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|     literally as possible. Several language differences required changes.  E.g. lack pre/post-fix increments as 
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|     expressions, lack of do-while loops, lack of overloads, etc.
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| 
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| syntax/prefix.go (from RegexFCD.cs and RegexBoyerMoore.cs): ported as literally as possible and added support
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|     for unicode chars that are longer than the 16-bit char in C# for the 32-bit rune in Go.
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| 
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| syntax/replacerdata.go (from RegexReplacement.cs): conceptually ported and re-organized to handle differences 
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|     in charclass implementation, and fix odd code layout between RegexParser.cs, Regex.cs, and RegexReplacement.cs.
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| 
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| syntax/tree.go (from RegexTree.cs and RegexNode.cs): ported literally as possible.
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| 
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| syntax/writer.go (from RegexWriter.cs): ported literally with minor changes to make it more Go-ish.
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| 
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| match.go (from RegexMatch.cs): ported, simplified, and changed to handle Go's lack of inheritence.
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| 
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| regexp.go (from Regex.cs and RegexOptions.cs): conceptually serves the same "starting point", but is simplified 
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|     and changed to handle differences in C# strings and Go strings/runes.  
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| 
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| replace.go (from RegexReplacement.cs): ported closely and then cleaned up to combine the MatchEvaluator and 
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|     simple string replace implementations.
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| 
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| runner.go (from RegexRunner.cs): ported literally as possible.
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| 
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| regexp_test.go (from CaptureTests.cs and GroupNamesAndNumbers.cs): conceptually ported, but the code was 
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|     manually structured like Go tests.
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| 
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| replace_test.go (from RegexReplaceStringTest0.cs): conceptually ported
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| 
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| rtl_test.go (from RightToLeft.cs): conceptually ported
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| ---
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| dotnet/corefx was released under this license:
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| 
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| The MIT License (MIT)
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| 
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| Copyright (c) Microsoft Corporation
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| 
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| Permission is hereby granted, free of charge, to any person obtaining a copy
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| of this software and associated documentation files (the "Software"), to deal
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| in the Software without restriction, including without limitation the rights
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| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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| copies of the Software, and to permit persons to whom the Software is
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| furnished to do so, subject to the following conditions:
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| 
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| The above copyright notice and this permission notice shall be included in all
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| copies or substantial portions of the Software.
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| 
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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| SOFTWARE.
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| 
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| ============
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| These pieces of code are copied from the Go framework:
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| 
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| - The overall directory structure of regexp2 was inspired by the Go runtime regexp package.
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| - The optimization in the escape method of syntax/escape.go is from the Go runtime QuoteMeta() func in regexp/regexp.go
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| - The method signatures in regexp.go are designed to match the Go framework regexp methods closely
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| - func regexp2.MustCompile and func quote are almost identifical to the regexp package versions
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| - BenchmarkMatch* and TestProgramTooLong* funcs in regexp_performance_test.go were copied from the framework 
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|     regexp/exec_test.go
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| ---
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| The Go framework was released under this license:
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| 
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| Copyright (c) 2012 The Go Authors. All rights reserved.
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| 
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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
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| met:
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| 
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|    * Redistributions of source code must retain the above copyright
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| notice, this list of conditions and the following disclaimer.
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|    * Redistributions in binary form must reproduce the above
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| copyright notice, this list of conditions and the following disclaimer
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| in the documentation and/or other materials provided with the
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| distribution.
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|    * Neither the name of Google Inc. 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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| 
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| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| (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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| 
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| ============
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| Some test data were gathered from the Mono project.
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| 
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| regexp_mono_test.go: ported from https://github.com/mono/mono/blob/master/mcs/class/System/Test/System.Text.RegularExpressions/PerlTrials.cs
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| ---
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| Mono tests released under this license:
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| 
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| Permission is hereby granted, free of charge, to any person obtaining
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| a copy of this software and associated documentation files (the
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| "Software"), to deal in the Software without restriction, including
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| without limitation the rights to use, copy, modify, merge, publish,
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| distribute, sublicense, and/or sell copies of the Software, and to
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| permit persons to whom the Software is furnished to do so, subject to
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| the following conditions:
 | |
| 
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| The above copyright notice and this permission notice shall be
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| included in all copies or substantial portions of the Software.
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| 
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 | |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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| LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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| OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 
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