84 lines
2.8 KiB
C#
84 lines
2.8 KiB
C#
/*
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* Copyright (c) 2019-2024, Sjofn LLC
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* 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 met:
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*
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* - 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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* - Neither the name of the openmetaverse.co nor the names
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* of its 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 "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
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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namespace LibreMetaverse.LslTools
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{
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public class Path
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{
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public bool valid = true;
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private ParseState[] m_states;
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public Path(ParseState[] s)
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{
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this.m_states = s;
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}
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public Path(ParseState q, CSymbol[] x)
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{
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this.m_states = new ParseState[x.Length + 1];
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ParseState parseState = this.m_states[0] = q;
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for (int index1 = 0; index1 < x.Length; ++index1)
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{
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int index2 = index1;
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while (index2 < x.Length && x[index2].IsAction())
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++index2;
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if (index2 >= x.Length)
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{
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this.m_states[index1 + 1] = parseState;
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}
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else
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{
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Transition transition = (Transition) parseState.m_transitions[(object) x[index2].yytext];
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if (transition == null || transition.m_next == null)
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{
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this.valid = false;
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break;
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}
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parseState = this.m_states[index1 + 1] = transition.m_next.m_next;
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}
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}
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}
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public Path(CSymbol[] x)
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: this((ParseState) x[0].m_parser.m_symbols.m_states[(object) 0], x)
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{
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}
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public CSymbol[] Spelling
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{
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get
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{
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CSymbol[] csymbolArray = new CSymbol[this.m_states.Length - 1];
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for (int index = 0; index < csymbolArray.Length; ++index)
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csymbolArray[index] = this.m_states[index].m_accessingSymbol;
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return csymbolArray;
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}
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}
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public ParseState Top => this.m_states[this.m_states.Length - 1];
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}
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}
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