62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*
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* This file is part of pgn-extract: a Portable Game Notation (PGN) extractor.
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* Copyright (C) 1994-2022 David J. Barnes
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*
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* pgn-extract is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* pgn-extract is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with pgn-extract. If not, see <http://www.gnu.org/licenses/>.
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*
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* David J. Barnes may be contacted as d.j.barnes@kent.ac.uk
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* https://www.cs.kent.ac.uk/people/staff/djb/
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*/
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/* Define a type for lexical classification of tokens.
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* Not all of these values are returned to the parser.
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*/
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#ifndef TOKENS_H
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#define TOKENS_H
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typedef enum {
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/* The first section of tokens contains those that are
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* returned to the parser as complete token identifications.
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*/
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EOF_TOKEN, TAG, STRING, COMMENT, NAG,
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CHECK_SYMBOL, MOVE_NUMBER, RAV_START, RAV_END,
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MOVE, TERMINATING_RESULT,
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/* The remaining tokens are those that are used to
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* perform the identification. They are not handled by
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* the parser.
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*/
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WHITESPACE, TAG_START, TAG_END, DOUBLE_QUOTE,
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COMMENT_START, COMMENT_END, ANNOTATE,
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DOT, PERCENT, SEMICOLON, ESCAPE, ALPHA, DIGIT,
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STAR, DASH, SLASH, EOS, OPERATOR, NO_TOKEN, ERROR_TOKEN
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} TokenType;
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typedef union {
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/* This string is used to retain tag and result information. */
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char *token_string;
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/* Move information. */
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Move *move_details;
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unsigned move_number;
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StringList *nags;
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Variation *variation_details;
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CommentList *comment;
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/* An index into the Game_Header.Tags array for tag strings. */
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unsigned tag_index;
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} YYSTYPE;
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extern YYSTYPE yylval;
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#endif // TOKENS_H
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