80 lines
3.1 KiB
C#
80 lines
3.1 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="RegexIR.Prefix"
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// Project: StgSharp
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// AuthorGroup: Nitload
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// Copyright (c) Nitload. All rights reserved.
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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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// -----------------------------------------------------------------------
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.RegularAnalysis.Text
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{
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internal enum RegexIRPrefixMask
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{
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Prev_Success = 1 << 0,
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Prev_Fail = 1 << 1,
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Always = 1 << 2,
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ExeCondition = Prev_Fail | Prev_Success | Always,
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Pop_Fail = 1 << 3,
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Pop_Success = 1 << 4,
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PopCondition = Pop_Success | Pop_Fail,
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Observe_Line = 1 << 5,
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Observe_Region = 1 << 6,
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ObserveMethod = Observe_Line | Observe_Region
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}
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internal record struct RegexIRPrefix(
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int WorkingRegion,
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RegexIRPrefixMask Mask,
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int ObserveSource
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)
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{
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public override string ToString()
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{
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return $"{WorkingRegion:D4}, {DisplayMask(Mask , RegexIRPrefixMask.ExeCondition):D1}, {DisplayMask(Mask , RegexIRPrefixMask.PopCondition):D1}, {DisplayMask(Mask ,RegexIRPrefixMask.ObserveMethod):D1}, {ObserveSource:D4}";
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}
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private int DisplayMask(
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RegexIRPrefixMask mask,
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RegexIRPrefixMask range
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)
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{
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return range switch
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{
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RegexIRPrefixMask.ExeCondition => (int)(mask & RegexIRPrefixMask.ExeCondition) >> 0,
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RegexIRPrefixMask.PopCondition => (int)(mask & RegexIRPrefixMask.PopCondition) >> 3,
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RegexIRPrefixMask.ObserveMethod => (int)(mask & RegexIRPrefixMask.ObserveMethod) >> 5,
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_ => throw new ArgumentOutOfRangeException(nameof(range), range, null)
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};
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}
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}
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}
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