1149 lines
32 KiB
C++
1149 lines
32 KiB
C++
/* A Bison parser, made by GNU Bison 2.4.3. */
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/* Skeleton implementation for Bison LALR(1) parsers in C++
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Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free
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Software Foundation, Inc.
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This program 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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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* As a special exception, you may create a larger work that contains
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part or all of the Bison parser skeleton and distribute that work
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under terms of your choice, so long as that work isn't itself a
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parser generator using the skeleton or a modified version thereof
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as a parser skeleton. Alternatively, if you modify or redistribute
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the parser skeleton itself, you may (at your option) remove this
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special exception, which will cause the skeleton and the resulting
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Bison output files to be licensed under the GNU General Public
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License without this special exception.
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This special exception was added by the Free Software Foundation in
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version 2.2 of Bison. */
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/* First part of user declarations. */
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/* Line 311 of lalr1.cc */
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#line 40 "knot_parser/knot_parser.cc"
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#include "knot_parser.hh"
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/* User implementation prologue. */
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/* Line 317 of lalr1.cc */
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#line 49 "knot_parser/knot_parser.cc"
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/* Unqualified %code blocks. */
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/* Line 318 of lalr1.cc */
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#line 15 "knot_parser/knot_parser.yy"
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#define YY_DECL \
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yy::knot_parser::token_type knot_yylex (yy::knot_parser::semantic_type *yylval)
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YY_DECL;
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/* Line 318 of lalr1.cc */
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#line 29 "knot_parser/knot_parser.yy"
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#define yylex knot_yylex
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/* Line 318 of lalr1.cc */
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#line 68 "knot_parser/knot_parser.cc"
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#ifndef YY_
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# if defined YYENABLE_NLS && YYENABLE_NLS
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# if ENABLE_NLS
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# include <libintl.h> /* FIXME: INFRINGES ON USER NAME SPACE */
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# define YY_(msgid) dgettext ("bison-runtime", msgid)
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# endif
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# endif
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# ifndef YY_
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# define YY_(msgid) msgid
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# endif
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#endif
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/* Suppress unused-variable warnings by "using" E. */
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#define YYUSE(e) ((void) (e))
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/* Enable debugging if requested. */
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#if YYDEBUG
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/* A pseudo ostream that takes yydebug_ into account. */
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# define YYCDEBUG if (yydebug_) (*yycdebug_)
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# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
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do { \
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if (yydebug_) \
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{ \
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*yycdebug_ << Title << ' '; \
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yy_symbol_print_ ((Type), (Value), (Location)); \
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*yycdebug_ << std::endl; \
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} \
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} while (false)
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# define YY_REDUCE_PRINT(Rule) \
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do { \
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if (yydebug_) \
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yy_reduce_print_ (Rule); \
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} while (false)
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# define YY_STACK_PRINT() \
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do { \
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if (yydebug_) \
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yystack_print_ (); \
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} while (false)
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#else /* !YYDEBUG */
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# define YYCDEBUG if (false) std::cerr
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# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
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# define YY_REDUCE_PRINT(Rule)
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# define YY_STACK_PRINT()
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#endif /* !YYDEBUG */
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#define yyerrok (yyerrstatus_ = 0)
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#define yyclearin (yychar = yyempty_)
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#define YYACCEPT goto yyacceptlab
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#define YYABORT goto yyabortlab
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#define YYERROR goto yyerrorlab
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#define YYRECOVERING() (!!yyerrstatus_)
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namespace yy {
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/* Line 380 of lalr1.cc */
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#line 134 "knot_parser/knot_parser.cc"
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#if YYERROR_VERBOSE
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/* Return YYSTR after stripping away unnecessary quotes and
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backslashes, so that it's suitable for yyerror. The heuristic is
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that double-quoting is unnecessary unless the string contains an
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apostrophe, a comma, or backslash (other than backslash-backslash).
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YYSTR is taken from yytname. */
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std::string
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knot_parser::yytnamerr_ (const char *yystr)
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{
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if (*yystr == '"')
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{
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std::string yyr = "";
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char const *yyp = yystr;
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for (;;)
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switch (*++yyp)
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{
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case '\'':
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case ',':
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goto do_not_strip_quotes;
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case '\\':
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if (*++yyp != '\\')
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goto do_not_strip_quotes;
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/* Fall through. */
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default:
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yyr += *yyp;
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break;
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case '"':
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return yyr;
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}
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do_not_strip_quotes: ;
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}
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return yystr;
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}
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#endif
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/// Build a parser object.
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knot_parser::knot_parser (knot_diagram &parsed_knot_yyarg)
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:
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#if YYDEBUG
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yydebug_ (false),
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yycdebug_ (&std::cerr),
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#endif
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parsed_knot (parsed_knot_yyarg)
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{
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}
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knot_parser::~knot_parser ()
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{
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}
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#if YYDEBUG
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/*--------------------------------.
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| Print this symbol on YYOUTPUT. |
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`--------------------------------*/
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inline void
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knot_parser::yy_symbol_value_print_ (int yytype,
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const semantic_type* yyvaluep, const location_type* yylocationp)
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{
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YYUSE (yylocationp);
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YYUSE (yyvaluep);
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switch (yytype)
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{
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default:
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break;
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}
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}
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void
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knot_parser::yy_symbol_print_ (int yytype,
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const semantic_type* yyvaluep, const location_type* yylocationp)
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{
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*yycdebug_ << (yytype < yyntokens_ ? "token" : "nterm")
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<< ' ' << yytname_[yytype] << " ("
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<< *yylocationp << ": ";
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yy_symbol_value_print_ (yytype, yyvaluep, yylocationp);
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*yycdebug_ << ')';
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}
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#endif
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void
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knot_parser::yydestruct_ (const char* yymsg,
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int yytype, semantic_type* yyvaluep, location_type* yylocationp)
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{
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YYUSE (yylocationp);
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YYUSE (yymsg);
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YYUSE (yyvaluep);
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YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
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switch (yytype)
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{
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default:
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break;
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}
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}
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void
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knot_parser::yypop_ (unsigned int n)
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{
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yystate_stack_.pop (n);
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yysemantic_stack_.pop (n);
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yylocation_stack_.pop (n);
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}
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#if YYDEBUG
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std::ostream&
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knot_parser::debug_stream () const
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{
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return *yycdebug_;
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}
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void
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knot_parser::set_debug_stream (std::ostream& o)
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{
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yycdebug_ = &o;
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}
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knot_parser::debug_level_type
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knot_parser::debug_level () const
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{
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return yydebug_;
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}
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void
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knot_parser::set_debug_level (debug_level_type l)
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{
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yydebug_ = l;
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}
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#endif
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int
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knot_parser::parse ()
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{
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/// Lookahead and lookahead in internal form.
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int yychar = yyempty_;
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int yytoken = 0;
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/* State. */
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int yyn;
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int yylen = 0;
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int yystate = 0;
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/* Error handling. */
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int yynerrs_ = 0;
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int yyerrstatus_ = 0;
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/// Semantic value of the lookahead.
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semantic_type yylval;
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/// Location of the lookahead.
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location_type yylloc;
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/// The locations where the error started and ended.
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location_type yyerror_range[3];
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/// $$.
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semantic_type yyval;
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/// @$.
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location_type yyloc;
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int yyresult;
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YYCDEBUG << "Starting parse" << std::endl;
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/* Initialize the stacks. The initial state will be pushed in
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yynewstate, since the latter expects the semantical and the
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location values to have been already stored, initialize these
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stacks with a primary value. */
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yystate_stack_ = state_stack_type (0);
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yysemantic_stack_ = semantic_stack_type (0);
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yylocation_stack_ = location_stack_type (0);
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yysemantic_stack_.push (yylval);
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yylocation_stack_.push (yylloc);
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/* New state. */
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yynewstate:
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yystate_stack_.push (yystate);
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YYCDEBUG << "Entering state " << yystate << std::endl;
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/* Accept? */
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if (yystate == yyfinal_)
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goto yyacceptlab;
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goto yybackup;
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/* Backup. */
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yybackup:
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/* Try to take a decision without lookahead. */
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yyn = yypact_[yystate];
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if (yyn == yypact_ninf_)
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goto yydefault;
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/* Read a lookahead token. */
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if (yychar == yyempty_)
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{
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YYCDEBUG << "Reading a token: ";
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yychar = yylex (&yylval);
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}
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/* Convert token to internal form. */
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if (yychar <= yyeof_)
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{
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yychar = yytoken = yyeof_;
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YYCDEBUG << "Now at end of input." << std::endl;
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}
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else
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{
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yytoken = yytranslate_ (yychar);
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YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
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}
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/* If the proper action on seeing token YYTOKEN is to reduce or to
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detect an error, take that action. */
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yyn += yytoken;
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if (yyn < 0 || yylast_ < yyn || yycheck_[yyn] != yytoken)
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goto yydefault;
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/* Reduce or error. */
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yyn = yytable_[yyn];
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if (yyn <= 0)
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{
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if (yyn == 0 || yyn == yytable_ninf_)
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goto yyerrlab;
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yyn = -yyn;
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goto yyreduce;
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}
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/* Shift the lookahead token. */
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YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
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/* Discard the token being shifted. */
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yychar = yyempty_;
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yysemantic_stack_.push (yylval);
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yylocation_stack_.push (yylloc);
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/* Count tokens shifted since error; after three, turn off error
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status. */
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if (yyerrstatus_)
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--yyerrstatus_;
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yystate = yyn;
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goto yynewstate;
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/*-----------------------------------------------------------.
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| yydefault -- do the default action for the current state. |
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`-----------------------------------------------------------*/
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yydefault:
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yyn = yydefact_[yystate];
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if (yyn == 0)
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goto yyerrlab;
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goto yyreduce;
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/*-----------------------------.
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| yyreduce -- Do a reduction. |
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`-----------------------------*/
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yyreduce:
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yylen = yyr2_[yyn];
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/* If YYLEN is nonzero, implement the default value of the action:
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`$$ = $1'. Otherwise, use the top of the stack.
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Otherwise, the following line sets YYVAL to garbage.
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This behavior is undocumented and Bison
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users should not rely upon it. */
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if (yylen)
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yyval = yysemantic_stack_[yylen - 1];
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else
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yyval = yysemantic_stack_[0];
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{
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slice<location_type, location_stack_type> slice (yylocation_stack_, yylen);
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YYLLOC_DEFAULT (yyloc, slice, yylen);
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}
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YY_REDUCE_PRINT (yyn);
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switch (yyn)
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{
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case 10:
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/* Line 678 of lalr1.cc */
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#line 67 "knot_parser/knot_parser.yy"
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{
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unsigned n = (yysemantic_stack_[(3) - (1)].integer),
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k = (yysemantic_stack_[(3) - (3)].integer);
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if (n >= 1 && n <= 10
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&& k >= 1 && k <= rolfsen_crossing_knots (n))
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parsed_knot = knot_diagram (rolfsen_knot (n, k));
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else
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{
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fprintf (stderr, "knot_parser: no such Rolfsen knot `%d_%d'\n",
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n, k);
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exit (EXIT_FAILURE);
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}
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}
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break;
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case 11:
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/* Line 678 of lalr1.cc */
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#line 85 "knot_parser/knot_parser.yy"
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{
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unsigned n = (yysemantic_stack_[(3) - (1)].integer),
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k = (yysemantic_stack_[(3) - (3)].integer);
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bool alt = (yysemantic_stack_[(3) - (2)].alternating);
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if (n >= 1 && n <= 16
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&& k >= 1 && k <= htw_knots (n, alt))
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parsed_knot = knot_diagram (htw_knot (n, alt, k));
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else
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{
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fprintf (stderr, "knot_parser: no such HTW knot `%d%c%d'\n",
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n, alt ? 'a' : 'n', k);
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exit (EXIT_FAILURE);
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}
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}
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break;
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case 12:
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/* Line 678 of lalr1.cc */
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#line 104 "knot_parser/knot_parser.yy"
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{
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unsigned n = (yysemantic_stack_[(4) - (2)].integer),
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k = (yysemantic_stack_[(4) - (4)].integer);
|
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bool alt = (yysemantic_stack_[(4) - (3)].alternating);
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|
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if (n >= 1 && n <= 14
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&& k >= 1 && k <= mt_links (n, alt))
|
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parsed_knot = knot_diagram (mt_link (n, alt, k));
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else
|
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{
|
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fprintf (stderr, "knot_parser: no such MT link `%d%c%d'\n",
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n, alt ? 'a' : 'n', k);
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exit (EXIT_FAILURE);
|
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}
|
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}
|
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break;
|
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|
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case 13:
|
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/* Line 678 of lalr1.cc */
|
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#line 123 "knot_parser/knot_parser.yy"
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{ parsed_knot = knot_diagram (planar_diagram ("<parsed>", *(yysemantic_stack_[(4) - (3)].int_vec2))); }
|
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break;
|
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case 14:
|
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|
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/* Line 678 of lalr1.cc */
|
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#line 125 "knot_parser/knot_parser.yy"
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{ parsed_knot = knot_diagram (planar_diagram ("<parsed>", *(yysemantic_stack_[(4) - (3)].int_vec2))); }
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break;
|
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|
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case 15:
|
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|
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/* Line 678 of lalr1.cc */
|
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#line 130 "knot_parser/knot_parser.yy"
|
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{
|
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basedvector<basedvector<int, 1>, 1> even_labels (1);
|
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even_labels[1] = *(yysemantic_stack_[(4) - (3)].int_vec);
|
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parsed_knot = knot_diagram (dt_code ("<parsed>", even_labels));
|
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}
|
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break;
|
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|
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case 16:
|
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|
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/* Line 678 of lalr1.cc */
|
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#line 136 "knot_parser/knot_parser.yy"
|
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{ parsed_knot = knot_diagram (dt_code ("<parsed>", *(yysemantic_stack_[(4) - (3)].int_vec2))); }
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break;
|
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|
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case 17:
|
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/* Line 678 of lalr1.cc */
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#line 138 "knot_parser/knot_parser.yy"
|
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{ parsed_knot = knot_diagram (dt_code ("<parsed>", (yysemantic_stack_[(4) - (3)].string))); }
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break;
|
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case 18:
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/* Line 678 of lalr1.cc */
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#line 143 "knot_parser/knot_parser.yy"
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{ parsed_knot = knot_diagram (torus_knot ((yysemantic_stack_[(6) - (3)].integer), (yysemantic_stack_[(6) - (5)].integer))); }
|
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break;
|
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case 19:
|
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/* Line 678 of lalr1.cc */
|
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#line 148 "knot_parser/knot_parser.yy"
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{ parsed_knot = knot_diagram (braid ((yysemantic_stack_[(6) - (3)].integer), *(yysemantic_stack_[(6) - (5)].int_vec))); }
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break;
|
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case 20:
|
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|
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/* Line 678 of lalr1.cc */
|
|
#line 153 "knot_parser/knot_parser.yy"
|
|
{
|
|
unsigned unknot_ar[1][4] = {
|
|
{ 2, 1, 3, 4, },
|
|
};
|
|
parsed_knot = knot_diagram ("U", 1, unknot_ar);
|
|
}
|
|
break;
|
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|
|
case 23:
|
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|
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/* Line 678 of lalr1.cc */
|
|
#line 168 "knot_parser/knot_parser.yy"
|
|
{
|
|
basedvector<basedvector<int, 1>, 1> *v
|
|
= new basedvector<basedvector<int, 1>, 1> ();
|
|
v->append (*(yysemantic_stack_[(1) - (1)].int_vec));
|
|
(yyval.int_vec2) = v;
|
|
}
|
|
break;
|
|
|
|
case 24:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 175 "knot_parser/knot_parser.yy"
|
|
{
|
|
basedvector<basedvector<int, 1>, 1> *v = (yysemantic_stack_[(3) - (1)].int_vec2);
|
|
v->append (*(yysemantic_stack_[(3) - (3)].int_vec));
|
|
(yyval.int_vec2) = v;
|
|
}
|
|
break;
|
|
|
|
case 25:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 184 "knot_parser/knot_parser.yy"
|
|
{ (yyval.int_vec) = (yysemantic_stack_[(3) - (2)].int_vec); }
|
|
break;
|
|
|
|
case 26:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 186 "knot_parser/knot_parser.yy"
|
|
{ (yyval.int_vec) = (yysemantic_stack_[(3) - (2)].int_vec); }
|
|
break;
|
|
|
|
case 27:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 191 "knot_parser/knot_parser.yy"
|
|
{
|
|
basedvector<int, 1> *v =
|
|
new basedvector<int, 1> ();
|
|
v->append ((yysemantic_stack_[(1) - (1)].integer));
|
|
(yyval.int_vec) = v;
|
|
}
|
|
break;
|
|
|
|
case 28:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 198 "knot_parser/knot_parser.yy"
|
|
{
|
|
basedvector<int, 1> *v = (yysemantic_stack_[(3) - (1)].int_vec);
|
|
v->append ((yysemantic_stack_[(3) - (3)].integer));
|
|
(yyval.int_vec) = v;
|
|
}
|
|
break;
|
|
|
|
case 29:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 207 "knot_parser/knot_parser.yy"
|
|
{
|
|
basedvector<basedvector<int, 1>, 1> *v
|
|
= new basedvector<basedvector<int, 1>, 1> ();
|
|
v->append (*(yysemantic_stack_[(1) - (1)].int_vec));
|
|
(yyval.int_vec2) = v;
|
|
}
|
|
break;
|
|
|
|
case 30:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 214 "knot_parser/knot_parser.yy"
|
|
{
|
|
basedvector<basedvector<int, 1>, 1> *v = (yysemantic_stack_[(3) - (1)].int_vec2);
|
|
v->append (*(yysemantic_stack_[(3) - (3)].int_vec));
|
|
(yyval.int_vec2) = v;
|
|
}
|
|
break;
|
|
|
|
case 31:
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 223 "knot_parser/knot_parser.yy"
|
|
{
|
|
basedvector<int, 1> *v
|
|
= new basedvector<int, 1> ();
|
|
v->append ((yysemantic_stack_[(10) - (3)].integer));
|
|
v->append ((yysemantic_stack_[(10) - (5)].integer));
|
|
v->append ((yysemantic_stack_[(10) - (7)].integer));
|
|
v->append ((yysemantic_stack_[(10) - (9)].integer));
|
|
(yyval.int_vec) = v;
|
|
}
|
|
break;
|
|
|
|
|
|
|
|
/* Line 678 of lalr1.cc */
|
|
#line 650 "knot_parser/knot_parser.cc"
|
|
default:
|
|
break;
|
|
}
|
|
YY_SYMBOL_PRINT ("-> $$ =", yyr1_[yyn], &yyval, &yyloc);
|
|
|
|
yypop_ (yylen);
|
|
yylen = 0;
|
|
YY_STACK_PRINT ();
|
|
|
|
yysemantic_stack_.push (yyval);
|
|
yylocation_stack_.push (yyloc);
|
|
|
|
/* Shift the result of the reduction. */
|
|
yyn = yyr1_[yyn];
|
|
yystate = yypgoto_[yyn - yyntokens_] + yystate_stack_[0];
|
|
if (0 <= yystate && yystate <= yylast_
|
|
&& yycheck_[yystate] == yystate_stack_[0])
|
|
yystate = yytable_[yystate];
|
|
else
|
|
yystate = yydefgoto_[yyn - yyntokens_];
|
|
goto yynewstate;
|
|
|
|
/*------------------------------------.
|
|
| yyerrlab -- here on detecting error |
|
|
`------------------------------------*/
|
|
yyerrlab:
|
|
/* If not already recovering from an error, report this error. */
|
|
if (!yyerrstatus_)
|
|
{
|
|
++yynerrs_;
|
|
error (yylloc, yysyntax_error_ (yystate));
|
|
}
|
|
|
|
yyerror_range[1] = yylloc;
|
|
if (yyerrstatus_ == 3)
|
|
{
|
|
/* If just tried and failed to reuse lookahead token after an
|
|
error, discard it. */
|
|
|
|
if (yychar <= yyeof_)
|
|
{
|
|
/* Return failure if at end of input. */
|
|
if (yychar == yyeof_)
|
|
YYABORT;
|
|
}
|
|
else
|
|
{
|
|
yydestruct_ ("Error: discarding", yytoken, &yylval, &yylloc);
|
|
yychar = yyempty_;
|
|
}
|
|
}
|
|
|
|
/* Else will try to reuse lookahead token after shifting the error
|
|
token. */
|
|
goto yyerrlab1;
|
|
|
|
|
|
/*---------------------------------------------------.
|
|
| yyerrorlab -- error raised explicitly by YYERROR. |
|
|
`---------------------------------------------------*/
|
|
yyerrorlab:
|
|
|
|
/* Pacify compilers like GCC when the user code never invokes
|
|
YYERROR and the label yyerrorlab therefore never appears in user
|
|
code. */
|
|
if (false)
|
|
goto yyerrorlab;
|
|
|
|
yyerror_range[1] = yylocation_stack_[yylen - 1];
|
|
/* Do not reclaim the symbols of the rule which action triggered
|
|
this YYERROR. */
|
|
yypop_ (yylen);
|
|
yylen = 0;
|
|
yystate = yystate_stack_[0];
|
|
goto yyerrlab1;
|
|
|
|
/*-------------------------------------------------------------.
|
|
| yyerrlab1 -- common code for both syntax error and YYERROR. |
|
|
`-------------------------------------------------------------*/
|
|
yyerrlab1:
|
|
yyerrstatus_ = 3; /* Each real token shifted decrements this. */
|
|
|
|
for (;;)
|
|
{
|
|
yyn = yypact_[yystate];
|
|
if (yyn != yypact_ninf_)
|
|
{
|
|
yyn += yyterror_;
|
|
if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)
|
|
{
|
|
yyn = yytable_[yyn];
|
|
if (0 < yyn)
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Pop the current state because it cannot handle the error token. */
|
|
if (yystate_stack_.height () == 1)
|
|
YYABORT;
|
|
|
|
yyerror_range[1] = yylocation_stack_[0];
|
|
yydestruct_ ("Error: popping",
|
|
yystos_[yystate],
|
|
&yysemantic_stack_[0], &yylocation_stack_[0]);
|
|
yypop_ ();
|
|
yystate = yystate_stack_[0];
|
|
YY_STACK_PRINT ();
|
|
}
|
|
|
|
yyerror_range[2] = yylloc;
|
|
// Using YYLLOC is tempting, but would change the location of
|
|
// the lookahead. YYLOC is available though.
|
|
YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
|
|
yysemantic_stack_.push (yylval);
|
|
yylocation_stack_.push (yyloc);
|
|
|
|
/* Shift the error token. */
|
|
YY_SYMBOL_PRINT ("Shifting", yystos_[yyn],
|
|
&yysemantic_stack_[0], &yylocation_stack_[0]);
|
|
|
|
yystate = yyn;
|
|
goto yynewstate;
|
|
|
|
/* Accept. */
|
|
yyacceptlab:
|
|
yyresult = 0;
|
|
goto yyreturn;
|
|
|
|
/* Abort. */
|
|
yyabortlab:
|
|
yyresult = 1;
|
|
goto yyreturn;
|
|
|
|
yyreturn:
|
|
if (yychar != yyempty_)
|
|
yydestruct_ ("Cleanup: discarding lookahead", yytoken, &yylval, &yylloc);
|
|
|
|
/* Do not reclaim the symbols of the rule which action triggered
|
|
this YYABORT or YYACCEPT. */
|
|
yypop_ (yylen);
|
|
while (yystate_stack_.height () != 1)
|
|
{
|
|
yydestruct_ ("Cleanup: popping",
|
|
yystos_[yystate_stack_[0]],
|
|
&yysemantic_stack_[0],
|
|
&yylocation_stack_[0]);
|
|
yypop_ ();
|
|
}
|
|
|
|
return yyresult;
|
|
}
|
|
|
|
// Generate an error message.
|
|
std::string
|
|
knot_parser::yysyntax_error_ (int yystate)
|
|
{
|
|
std::string res;
|
|
YYUSE (yystate);
|
|
#if YYERROR_VERBOSE
|
|
int yyn = yypact_[yystate];
|
|
if (yypact_ninf_ < yyn && yyn <= yylast_)
|
|
{
|
|
/* Start YYX at -YYN if negative to avoid negative indexes in
|
|
YYCHECK. */
|
|
int yyxbegin = yyn < 0 ? -yyn : 0;
|
|
|
|
/* Stay within bounds of both yycheck and yytname. */
|
|
int yychecklim = yylast_ - yyn + 1;
|
|
int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
|
|
int count = 0;
|
|
for (int x = yyxbegin; x < yyxend; ++x)
|
|
if (yycheck_[x + yyn] == x && x != yyterror_)
|
|
++count;
|
|
|
|
// FIXME: This method of building the message is not compatible
|
|
// with internationalization. It should work like yacc.c does it.
|
|
// That is, first build a string that looks like this:
|
|
// "syntax error, unexpected %s or %s or %s"
|
|
// Then, invoke YY_ on this string.
|
|
// Finally, use the string as a format to output
|
|
// yytname_[tok], etc.
|
|
// Until this gets fixed, this message appears in English only.
|
|
res = "syntax error, unexpected ";
|
|
res += yytnamerr_ (yytname_[tok]);
|
|
if (count < 5)
|
|
{
|
|
count = 0;
|
|
for (int x = yyxbegin; x < yyxend; ++x)
|
|
if (yycheck_[x + yyn] == x && x != yyterror_)
|
|
{
|
|
res += (!count++) ? ", expecting " : " or ";
|
|
res += yytnamerr_ (yytname_[x]);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
res = YY_("syntax error");
|
|
return res;
|
|
}
|
|
|
|
|
|
/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
|
|
STATE-NUM. */
|
|
const signed char knot_parser::yypact_ninf_ = -36;
|
|
const signed char
|
|
knot_parser::yypact_[] =
|
|
{
|
|
-1, 10, -9, 25, 26, 37, 9, -36, 43, -36,
|
|
-36, -36, -36, -36, -36, -36, -36, -36, -36, 41,
|
|
42, -7, -3, 44, 24, 45, -36, -36, -36, 30,
|
|
46, 46, 7, -36, 11, -36, -36, 33, 12, 15,
|
|
-4, 48, 34, 49, 16, -2, -36, 0, -36, 47,
|
|
-36, -36, -36, 51, 0, -36, 53, 38, -36, -36,
|
|
-36, -36, -36, 50, 39, 55, -36, -36, 52, 57,
|
|
54, 58, 59, -36
|
|
};
|
|
|
|
/* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
|
|
doesn't specify something else to do. Zero means the default is an
|
|
error. */
|
|
const unsigned char
|
|
knot_parser::yydefact_[] =
|
|
{
|
|
0, 0, 0, 0, 0, 0, 0, 20, 0, 2,
|
|
3, 4, 5, 6, 7, 9, 8, 21, 22, 0,
|
|
0, 0, 0, 0, 0, 0, 1, 10, 11, 0,
|
|
0, 0, 0, 23, 0, 29, 27, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 13, 0, 14, 0,
|
|
17, 16, 15, 0, 0, 12, 0, 0, 26, 25,
|
|
24, 30, 28, 0, 0, 0, 19, 18, 0, 0,
|
|
0, 0, 0, 31
|
|
};
|
|
|
|
/* YYPGOTO[NTERM-NUM]. */
|
|
const signed char
|
|
knot_parser::yypgoto_[] =
|
|
{
|
|
-36, -36, -36, -36, -36, -36, -36, -36, -36, -36,
|
|
40, 56, -35, 8, -36, 13
|
|
};
|
|
|
|
/* YYDEFGOTO[NTERM-NUM]. */
|
|
const signed char
|
|
knot_parser::yydefgoto_[] =
|
|
{
|
|
-1, 8, 9, 10, 11, 12, 13, 14, 15, 16,
|
|
20, 32, 33, 39, 34, 35
|
|
};
|
|
|
|
/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
|
|
positive, shift that token. If negative, reduce the rule which
|
|
number is the opposite. If zero, do what YYDEFACT says. */
|
|
const signed char knot_parser::yytable_ninf_ = -1;
|
|
const unsigned char
|
|
knot_parser::yytable_[] =
|
|
{
|
|
36, 29, 1, 2, 3, 4, 5, 21, 6, 30,
|
|
7, 37, 60, 30, 31, 54, 30, 53, 31, 63,
|
|
59, 31, 17, 18, 46, 19, 47, 25, 48, 51,
|
|
49, 47, 52, 58, 53, 53, 17, 18, 44, 45,
|
|
24, 22, 23, 26, 27, 28, 43, 40, 42, 36,
|
|
50, 55, 57, 56, 62, 29, 64, 65, 68, 67,
|
|
70, 72, 61, 0, 41, 0, 0, 66, 0, 0,
|
|
0, 69, 0, 71, 0, 0, 73, 0, 38
|
|
};
|
|
|
|
/* YYCHECK. */
|
|
const signed char
|
|
knot_parser::yycheck_[] =
|
|
{
|
|
3, 8, 3, 4, 5, 6, 7, 16, 9, 16,
|
|
11, 14, 47, 16, 21, 19, 16, 19, 21, 54,
|
|
22, 21, 12, 13, 17, 15, 19, 18, 17, 17,
|
|
19, 19, 17, 17, 19, 19, 12, 13, 30, 31,
|
|
3, 16, 16, 0, 3, 3, 16, 3, 3, 3,
|
|
17, 3, 3, 19, 3, 8, 3, 19, 3, 20,
|
|
3, 3, 49, -1, 24, -1, -1, 17, -1, -1,
|
|
-1, 19, -1, 19, -1, -1, 17, -1, 22
|
|
};
|
|
|
|
/* STOS_[STATE-NUM] -- The (internal number of the) accessing
|
|
symbol of state STATE-NUM. */
|
|
const unsigned char
|
|
knot_parser::yystos_[] =
|
|
{
|
|
0, 3, 4, 5, 6, 7, 9, 11, 24, 25,
|
|
26, 27, 28, 29, 30, 31, 32, 12, 13, 15,
|
|
33, 16, 16, 16, 3, 18, 0, 3, 3, 8,
|
|
16, 21, 34, 35, 37, 38, 3, 14, 34, 36,
|
|
3, 33, 3, 16, 36, 36, 17, 19, 17, 19,
|
|
17, 17, 17, 19, 19, 3, 19, 3, 17, 22,
|
|
35, 38, 3, 35, 3, 19, 17, 20, 3, 19,
|
|
3, 19, 3, 17
|
|
};
|
|
|
|
#if YYDEBUG
|
|
/* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
|
|
to YYLEX-NUM. */
|
|
const unsigned short int
|
|
knot_parser::yytoken_number_[] =
|
|
{
|
|
0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
|
|
265, 266, 267, 268, 269, 95, 91, 93, 40, 44,
|
|
41, 123, 125
|
|
};
|
|
#endif
|
|
|
|
/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
|
|
const unsigned char
|
|
knot_parser::yyr1_[] =
|
|
{
|
|
0, 23, 24, 24, 24, 24, 24, 24, 24, 24,
|
|
25, 26, 27, 28, 28, 29, 29, 29, 30, 31,
|
|
32, 33, 33, 34, 34, 35, 35, 36, 36, 37,
|
|
37, 38
|
|
};
|
|
|
|
/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
|
|
const unsigned char
|
|
knot_parser::yyr2_[] =
|
|
{
|
|
0, 2, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
3, 3, 4, 4, 4, 4, 4, 4, 6, 6,
|
|
1, 1, 1, 1, 3, 3, 3, 1, 3, 1,
|
|
3, 10
|
|
};
|
|
|
|
#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
|
|
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
|
|
First, the terminals, then, starting at \a yyntokens_, nonterminals. */
|
|
const char*
|
|
const knot_parser::yytname_[] =
|
|
{
|
|
"\"end of file\"", "error", "$undefined", "INT", "PD", "DT", "BR",
|
|
"LINK", "X", "T", "U", "UNKNOT", "ALT", "NONALT", "STRING", "'_'", "'['",
|
|
"']'", "'('", "','", "')'", "'{'", "'}'", "$accept", "knot",
|
|
"rolfsen_knot", "htw_knot", "mt_link", "planar_diagram", "dt",
|
|
"torus_link", "braid", "unknot", "alt_spec", "int_vec2", "int_vec",
|
|
"int_vec_1", "crossing_vec", "crossing", 0
|
|
};
|
|
#endif
|
|
|
|
#if YYDEBUG
|
|
/* YYRHS -- A `-1'-separated list of the rules' RHS. */
|
|
const knot_parser::rhs_number_type
|
|
knot_parser::yyrhs_[] =
|
|
{
|
|
24, 0, -1, 25, -1, 26, -1, 27, -1, 28,
|
|
-1, 29, -1, 30, -1, 32, -1, 31, -1, 3,
|
|
15, 3, -1, 3, 33, 3, -1, 7, 3, 33,
|
|
3, -1, 4, 16, 34, 17, -1, 4, 16, 37,
|
|
17, -1, 5, 16, 36, 17, -1, 5, 16, 34,
|
|
17, -1, 5, 16, 14, 17, -1, 9, 18, 3,
|
|
19, 3, 20, -1, 6, 16, 3, 19, 35, 17,
|
|
-1, 11, -1, 12, -1, 13, -1, 35, -1, 34,
|
|
19, 35, -1, 21, 36, 22, -1, 16, 36, 17,
|
|
-1, 3, -1, 36, 19, 3, -1, 38, -1, 37,
|
|
19, 38, -1, 8, 16, 3, 19, 3, 19, 3,
|
|
19, 3, 17, -1
|
|
};
|
|
|
|
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
|
|
YYRHS. */
|
|
const unsigned char
|
|
knot_parser::yyprhs_[] =
|
|
{
|
|
0, 0, 3, 5, 7, 9, 11, 13, 15, 17,
|
|
19, 23, 27, 32, 37, 42, 47, 52, 57, 64,
|
|
71, 73, 75, 77, 79, 83, 87, 91, 93, 97,
|
|
99, 103
|
|
};
|
|
|
|
/* YYRLINE[YYN] -- Source line where rule number YYN was defined. */
|
|
const unsigned char
|
|
knot_parser::yyrline_[] =
|
|
{
|
|
0, 55, 55, 56, 57, 58, 59, 60, 61, 62,
|
|
66, 84, 103, 122, 124, 129, 135, 137, 142, 147,
|
|
152, 162, 163, 167, 174, 183, 185, 190, 197, 206,
|
|
213, 222
|
|
};
|
|
|
|
// Print the state stack on the debug stream.
|
|
void
|
|
knot_parser::yystack_print_ ()
|
|
{
|
|
*yycdebug_ << "Stack now";
|
|
for (state_stack_type::const_iterator i = yystate_stack_.begin ();
|
|
i != yystate_stack_.end (); ++i)
|
|
*yycdebug_ << ' ' << *i;
|
|
*yycdebug_ << std::endl;
|
|
}
|
|
|
|
// Report on the debug stream that the rule \a yyrule is going to be reduced.
|
|
void
|
|
knot_parser::yy_reduce_print_ (int yyrule)
|
|
{
|
|
unsigned int yylno = yyrline_[yyrule];
|
|
int yynrhs = yyr2_[yyrule];
|
|
/* Print the symbols being reduced, and their result. */
|
|
*yycdebug_ << "Reducing stack by rule " << yyrule - 1
|
|
<< " (line " << yylno << "):" << std::endl;
|
|
/* The symbols being reduced. */
|
|
for (int yyi = 0; yyi < yynrhs; yyi++)
|
|
YY_SYMBOL_PRINT (" $" << yyi + 1 << " =",
|
|
yyrhs_[yyprhs_[yyrule] + yyi],
|
|
&(yysemantic_stack_[(yynrhs) - (yyi + 1)]),
|
|
&(yylocation_stack_[(yynrhs) - (yyi + 1)]));
|
|
}
|
|
#endif // YYDEBUG
|
|
|
|
/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
|
|
knot_parser::token_number_type
|
|
knot_parser::yytranslate_ (int t)
|
|
{
|
|
static
|
|
const token_number_type
|
|
translate_table[] =
|
|
{
|
|
0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
18, 20, 2, 2, 19, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 16, 2, 17, 2, 15, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 21, 2, 22, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
|
|
5, 6, 7, 8, 9, 10, 11, 12, 13, 14
|
|
};
|
|
if ((unsigned int) t <= yyuser_token_number_max_)
|
|
return translate_table[t];
|
|
else
|
|
return yyundef_token_;
|
|
}
|
|
|
|
const int knot_parser::yyeof_ = 0;
|
|
const int knot_parser::yylast_ = 78;
|
|
const int knot_parser::yynnts_ = 16;
|
|
const int knot_parser::yyempty_ = -2;
|
|
const int knot_parser::yyfinal_ = 26;
|
|
const int knot_parser::yyterror_ = 1;
|
|
const int knot_parser::yyerrcode_ = 256;
|
|
const int knot_parser::yyntokens_ = 23;
|
|
|
|
const unsigned int knot_parser::yyuser_token_number_max_ = 269;
|
|
const knot_parser::token_number_type knot_parser::yyundef_token_ = 2;
|
|
|
|
|
|
} // yy
|
|
|
|
/* Line 1054 of lalr1.cc */
|
|
#line 1121 "knot_parser/knot_parser.cc"
|
|
|
|
|
|
/* Line 1056 of lalr1.cc */
|
|
#line 233 "knot_parser/knot_parser.yy"
|
|
|
|
|
|
void
|
|
yy::knot_parser::error (const yy::knot_parser::location_type &l,
|
|
const std::string &m)
|
|
{
|
|
fprintf (stderr, "knot_parser: parse error.\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
void knot_scan_string (const char *s);
|
|
|
|
knot_diagram
|
|
parse_knot (const char *s)
|
|
{
|
|
knot_scan_string (s);
|
|
|
|
knot_diagram d;
|
|
yy::knot_parser parser (d);
|
|
parser.parse ();
|
|
|
|
return d;
|
|
}
|
|
|