EvilBeaver/OneScript: Исполняющая среда скриптов на языке 1С

src/OneScript.Language/LexicalAnalysis/LexerExtensions.cs

48 строк1 KB

Andrey Ovsiankin

Новое АПИ входа в модуль. Заменено в тестах

22 июл 2021, 14:31

22 июл 2021, 14:313b770c0

/*----------------------------------------------------------
This Source Code Form is subject to the terms of the
Mozilla Public License, v.2.0. If a copy of the MPL
was not distributed with this file, You can obtain one
at http://mozilla.org/MPL/2.0/.
----------------------------------------------------------*/

using System;

namespace OneScript.Language.LexicalAnalysis
{
    public static class LexerExtensions
    {
        public static int ReadToLineEnd(this ILexer lexer)
        {
            var data = lexer.Iterator.ReadToLineEnd();
            return data.Length;
        }

        public static Lexem NextLexemOnSameLine(this ILexer lexer)
        {
            if (lexer.Iterator.CurrentSymbol == '\n')
            {
                return Lexem.EndOfText();
            }

            try
            {
                lexer.Iterator.StayOnSameLine = true;
                return lexer.Iterator.MoveToContent() ? lexer.NextLexem() : Lexem.EndOfText();
            }
            finally
            {
                lexer.Iterator.StayOnSameLine = false;
            }
        }
        
        public static void SkipTillLineEnd(this ILexer lexer)
        {
            lexer.ReadToLineEnd();
        }
        
        public static Lexem SkipTillNextStatement(this ILexer lexer)
        {
            throw new NotImplementedException();
        }
    }
}