diff options
Diffstat (limited to 'lib/parsetools/src/yecc.erl')
| -rw-r--r-- | lib/parsetools/src/yecc.erl | 255 |
1 files changed, 136 insertions, 119 deletions
diff --git a/lib/parsetools/src/yecc.erl b/lib/parsetools/src/yecc.erl index 1b426141a1..36e33b52a4 100644 --- a/lib/parsetools/src/yecc.erl +++ b/lib/parsetools/src/yecc.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. +%% Copyright Ericsson AB 1996-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -81,7 +81,7 @@ -record(rule, { n, % rule n in the grammar file - line, + anno, symbols, % the names of symbols tokens, is_guard, % the action is a guard (not used) @@ -105,7 +105,7 @@ -record(user_code, {state, terminal, funname, action}). --record(symbol, {line = none, name}). +-record(symbol, {anno = none, name}). %% ACCEPT is neither an atom nor a non-terminal. -define(ACCEPT, {}). @@ -154,13 +154,13 @@ compile(Input0, Output0, format_error(bad_declaration) -> io_lib:fwrite("unknown or bad declaration, ignored", []); format_error({bad_expect, SymName}) -> - io_lib:fwrite("argument ~s of Expect is not an integer", + io_lib:fwrite("argument ~ts of Expect is not an integer", [format_symbol(SymName)]); format_error({bad_rootsymbol, SymName}) -> - io_lib:fwrite("rootsymbol ~s is not a nonterminal", + io_lib:fwrite("rootsymbol ~ts is not a nonterminal", [format_symbol(SymName)]); format_error({bad_states, SymName}) -> - io_lib:fwrite("argument ~s of States is not an integer", + io_lib:fwrite("argument ~ts of States is not an integer", [format_symbol(SymName)]); format_error({conflict, Conflict}) -> format_conflict(Conflict); @@ -169,19 +169,19 @@ format_error({conflicts, SR, RR}) -> format_error({duplicate_declaration, Tag}) -> io_lib:fwrite("duplicate declaration of ~s", [atom_to_list(Tag)]); format_error({duplicate_nonterminal, Nonterminal}) -> - io_lib:fwrite("duplicate non-terminals ~s", + io_lib:fwrite("duplicate non-terminals ~ts", [format_symbol(Nonterminal)]); format_error({duplicate_precedence, Op}) -> - io_lib:fwrite("duplicate precedence operator ~s", + io_lib:fwrite("duplicate precedence operator ~ts", [format_symbol(Op)]); format_error({duplicate_terminal, Terminal}) -> - io_lib:fwrite("duplicate terminal ~s", + io_lib:fwrite("duplicate terminal ~ts", [format_symbol(Terminal)]); format_error({endsymbol_is_nonterminal, Symbol}) -> - io_lib:fwrite("endsymbol ~s is a nonterminal", + io_lib:fwrite("endsymbol ~ts is a nonterminal", [format_symbol(Symbol)]); format_error({endsymbol_is_terminal, Symbol}) -> - io_lib:fwrite("endsymbol ~s is a terminal", + io_lib:fwrite("endsymbol ~ts is a terminal", [format_symbol(Symbol)]); format_error({error, Module, Error}) -> Module:format_error(Error); @@ -192,7 +192,7 @@ format_error(illegal_empty) -> format_error({internal_error, Error}) -> io_lib:fwrite("internal yecc error: ~w", [Error]); format_error({missing_syntax_rule, Nonterminal}) -> - io_lib:fwrite("no syntax rule for non-terminal symbol ~s", + io_lib:fwrite("no syntax rule for non-terminal symbol ~ts", [format_symbol(Nonterminal)]); format_error({n_states, Exp, N}) -> io_lib:fwrite("expected ~w states, but got ~p states", [Exp, N]); @@ -201,31 +201,31 @@ format_error(no_grammar_rules) -> format_error(nonterminals_missing) -> io_lib:fwrite("Nonterminals is missing", []); format_error({precedence_op_is_endsymbol, SymName}) -> - io_lib:fwrite("precedence operator ~s is endsymbol", + io_lib:fwrite("precedence operator ~ts is endsymbol", [format_symbol(SymName)]); format_error({precedence_op_is_unknown, SymName}) -> - io_lib:fwrite("unknown precedence operator ~s", + io_lib:fwrite("unknown precedence operator ~ts", [format_symbol(SymName)]); format_error({reserved, N}) -> io_lib:fwrite("the use of ~w should be avoided", [N]); format_error({symbol_terminal_and_nonterminal, SymName}) -> - io_lib:fwrite("symbol ~s is both a terminal and nonterminal", + io_lib:fwrite("symbol ~ts is both a terminal and nonterminal", [format_symbol(SymName)]); format_error(rootsymbol_missing) -> io_lib:fwrite("Rootsymbol is missing", []); format_error(terminals_missing) -> io_lib:fwrite("Terminals is missing", []); format_error({undefined_nonterminal, Symbol}) -> - io_lib:fwrite("undefined nonterminal: ~s", [format_symbol(Symbol)]); + io_lib:fwrite("undefined nonterminal: ~ts", [format_symbol(Symbol)]); format_error({undefined_pseudo_variable, Atom}) -> io_lib:fwrite("undefined pseudo variable ~w", [Atom]); format_error({undefined_symbol, SymName}) -> - io_lib:fwrite("undefined rhs symbol ~s", [format_symbol(SymName)]); + io_lib:fwrite("undefined rhs symbol ~ts", [format_symbol(SymName)]); format_error({unused_nonterminal, Nonterminal}) -> - io_lib:fwrite("non-terminal symbol ~s not used", + io_lib:fwrite("non-terminal symbol ~ts not used", [format_symbol(Nonterminal)]); format_error({unused_terminal, Terminal}) -> - io_lib:fwrite("terminal symbol ~s not used", + io_lib:fwrite("terminal symbol ~ts not used", [format_symbol(Terminal)]); format_error({bad_symbol, String}) -> io_lib:fwrite("bad symbol ~ts", [String]); @@ -517,7 +517,7 @@ parse_grammar(Grammar, Inport, NextLine, St0) -> parse_grammar(Inport, NextLine, St). parse_grammar({error,ErrorLine,Error}, St) -> - add_error(ErrorLine, Error, St); + add_error(erl_anno:new(ErrorLine), Error, St); parse_grammar({rule, Rule, Tokens}, St0) -> NmbrOfDaughters = case Rule of [_, #symbol{name = '$empty'}] -> 0; @@ -534,15 +534,15 @@ parse_grammar({rule, Rule, Tokens}, St0) -> St#yecc{rules_list = [RuleDef | St#yecc.rules_list]}; parse_grammar({prec, Prec}, St) -> St#yecc{prec = Prec ++ St#yecc.prec}; -parse_grammar({#symbol{}, [{string,Line,String}]}, St) -> - add_error(Line, {bad_symbol, String}, St); -parse_grammar({#symbol{line = Line, name = Name}, Symbols}, St) -> +parse_grammar({#symbol{}, [{string,Anno,String}]}, St) -> + add_error(Anno, {bad_symbol, String}, St); +parse_grammar({#symbol{anno = Anno, name = Name}, Symbols}, St) -> CF = fun(I) -> case element(I, St) of [] -> setelement(I, St, Symbols); _ -> - add_error(Line, {duplicate_declaration, Name}, St) + add_error(Anno, {duplicate_declaration, Name}, St) end end, OneSymbol = length(Symbols) =:= 1, @@ -553,7 +553,7 @@ parse_grammar({#symbol{line = Line, name = Name}, Symbols}, St) -> 'Endsymbol' when OneSymbol -> CF(#yecc.endsymbol); 'Expect' when OneSymbol -> CF(#yecc.expect_shift_reduce); 'States' when OneSymbol -> CF(#yecc.expect_n_states); % undocumented - _ -> add_warning(Line, bad_declaration, St) + _ -> add_warning(Anno, bad_declaration, St) end. read_grammar(Inport, St, Line) -> @@ -599,7 +599,7 @@ precedence(_) -> unknown. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% check_grammar(St0) -> - Empty = #symbol{line = none, name = '$empty'}, + Empty = #symbol{anno = none, name = '$empty'}, AllSymbols = St0#yecc.nonterminals ++ St0#yecc.terminals ++ [Empty], St1 = St0#yecc{all_symbols = AllSymbols}, Cs = [fun check_nonterminals/1, fun check_terminals/1, @@ -640,12 +640,12 @@ check_rootsymbol(St) -> case St#yecc.rootsymbol of [] -> add_error(rootsymbol_missing, St); - [#symbol{line = Line, name = SymName}] -> + [#symbol{anno = Anno, name = SymName}] -> case kind_of_symbol(St, SymName) of nonterminal -> St#yecc{rootsymbol = SymName}; _ -> - add_error(Line, {bad_rootsymbol, SymName}, St) + add_error(Anno, {bad_rootsymbol, SymName}, St) end end. @@ -653,12 +653,12 @@ check_endsymbol(St) -> case St#yecc.endsymbol of [] -> St#yecc{endsymbol = '$end'}; - [#symbol{line = Line, name = SymName}] -> + [#symbol{anno = Anno, name = SymName}] -> case kind_of_symbol(St, SymName) of nonterminal -> - add_error(Line, {endsymbol_is_nonterminal, SymName}, St); + add_error(Anno, {endsymbol_is_nonterminal, SymName}, St); terminal -> - add_error(Line, {endsymbol_is_terminal, SymName}, St); + add_error(Anno, {endsymbol_is_terminal, SymName}, St); _ -> St#yecc{endsymbol = SymName} end @@ -670,8 +670,8 @@ check_expect(St0) -> St0#yecc{expect_shift_reduce = 0}; [#symbol{name = Expect}] when is_integer(Expect) -> St0#yecc{expect_shift_reduce = Expect}; - [#symbol{line = Line, name = Name}] -> - St1 = add_error(Line, {bad_expect, Name}, St0), + [#symbol{anno = Anno, name = Name}] -> + St1 = add_error(Anno, {bad_expect, Name}, St0), St1#yecc{expect_shift_reduce = 0} end. @@ -681,27 +681,27 @@ check_states(St) -> St; [#symbol{name = NStates}] when is_integer(NStates) -> St#yecc{expect_n_states = NStates}; - [#symbol{line = Line, name = Name}] -> - add_error(Line, {bad_states, Name}, St) + [#symbol{anno = Anno, name = Name}] -> + add_error(Anno, {bad_states, Name}, St) end. check_precedences(St0) -> {St1, _} = - foldr(fun({#symbol{line = Line, name = Op},_I,_A}, {St,Ps}) -> + foldr(fun({#symbol{anno = Anno, name = Op},_I,_A}, {St,Ps}) -> case member(Op, Ps) of true -> - {add_error(Line, {duplicate_precedence,Op}, St), + {add_error(Anno, {duplicate_precedence,Op}, St), Ps}; false -> {St, [Op | Ps]} end end, {St0,[]}, St0#yecc.prec), - foldl(fun({#symbol{line = Line, name = Op},I,A}, St) -> + foldl(fun({#symbol{anno = Anno, name = Op},I,A}, St) -> case kind_of_symbol(St, Op) of endsymbol -> - add_error(Line,{precedence_op_is_endsymbol,Op}, St); + add_error(Anno,{precedence_op_is_endsymbol,Op}, St); unknown -> - add_error(Line, {precedence_op_is_unknown, Op}, St); + add_error(Anno, {precedence_op_is_unknown, Op}, St); _ -> St#yecc{prec = [{Op,I,A} | St#yecc.prec]} end @@ -709,13 +709,13 @@ check_precedences(St0) -> check_rule(Rule0, {St0,Rules}) -> Symbols = Rule0#rule.symbols, - #symbol{line = HeadLine, name = Head} = hd(Symbols), + #symbol{anno = HeadAnno, name = Head} = hd(Symbols), case member(Head, St0#yecc.nonterminals) of false -> - {add_error(HeadLine, {undefined_nonterminal, Head}, St0), Rules}; + {add_error(HeadAnno, {undefined_nonterminal, Head}, St0), Rules}; true -> St = check_rhs(tl(Symbols), St0), - Rule = Rule0#rule{line = HeadLine, symbols = names(Symbols)}, + Rule = Rule0#rule{anno = HeadAnno, symbols = names(Symbols)}, {St, [Rule | Rules]} end. @@ -725,7 +725,7 @@ check_rules(St0) -> [] -> add_error(no_grammar_rules, St); _ -> - Rule = #rule{line = none, + Rule = #rule{anno = none, symbols = [?ACCEPT, St#yecc.rootsymbol], tokens = []}, Rules1 = [Rule | Rules0], @@ -740,9 +740,9 @@ duplicates(List) -> names(Symbols) -> map(fun(Symbol) -> Symbol#symbol.name end, Symbols). -symbol_line(Name, St) -> - #symbol{line = Line} = symbol_find(Name, St#yecc.all_symbols), - Line. +symbol_anno(Name, St) -> + #symbol{anno = Anno} = symbol_find(Name, St#yecc.all_symbols), + Anno. symbol_member(Symbol, Symbols) -> symbol_find(Symbol#symbol.name, Symbols) =/= false. @@ -894,31 +894,33 @@ report_warnings(St) -> add_error(E, St) -> add_error(none, E, St). -add_error(Line, E, St) -> - add_error(St#yecc.infile, Line, E, St). +add_error(Anno, E, St) -> + add_error(St#yecc.infile, Anno, E, St). -add_error(File, Line, E, St) -> - St#yecc{errors = [{File,{Line,?MODULE,E}}|St#yecc.errors]}. +add_error(File, Anno, E, St) -> + Loc = location(Anno), + St#yecc{errors = [{File,{Loc,?MODULE,E}}|St#yecc.errors]}. add_errors(SymNames, E0, St0) -> foldl(fun(SymName, St) -> - add_error(symbol_line(SymName, St), {E0, SymName}, St) + add_error(symbol_anno(SymName, St), {E0, SymName}, St) end, St0, SymNames). -add_warning(Line, W, St) -> - St#yecc{warnings = [{St#yecc.infile,{Line,?MODULE,W}}|St#yecc.warnings]}. +add_warning(Anno, W, St) -> + Loc = location(Anno), + St#yecc{warnings = [{St#yecc.infile,{Loc,?MODULE,W}}|St#yecc.warnings]}. add_warnings(SymNames, W0, St0) -> foldl(fun(SymName, St) -> - add_warning(symbol_line(SymName, St), {W0, SymName}, St) + add_warning(symbol_anno(SymName, St), {W0, SymName}, St) end, St0, SymNames). check_rhs([#symbol{name = '$empty'}], St) -> St; check_rhs(Rhs, St0) -> case symbol_find('$empty', Rhs) of - #symbol{line = Line} -> - add_error(Line, illegal_empty, St0); + #symbol{anno = Anno} -> + add_error(Anno, illegal_empty, St0); false -> foldl(fun(Sym, St) -> case symbol_member(Sym, St#yecc.all_symbols) of @@ -926,13 +928,13 @@ check_rhs(Rhs, St0) -> St; false -> E = {undefined_symbol,Sym#symbol.name}, - add_error(Sym#symbol.line, E, St) + add_error(Sym#symbol.anno, E, St) end end, St0, Rhs) end. check_action(Tokens) -> - case erl_parse:parse_exprs(add_roberts_dot(Tokens, 0)) of + case erl_parse:parse_exprs(add_roberts_dot(Tokens, erl_anno:new(0))) of {error, _Error} -> {false, false}; {ok, [Expr | Exprs]} -> @@ -940,10 +942,10 @@ check_action(Tokens) -> {IsGuard, true} end. -add_roberts_dot([], Line) -> - [{'dot', Line}]; -add_roberts_dot([{'dot', Line} | _], _) -> - [{'dot', Line}]; +add_roberts_dot([], Anno) -> + [{'dot', Anno}]; +add_roberts_dot([{'dot', Anno} | _], _) -> + [{'dot', Anno}]; add_roberts_dot([Token | Tokens], _) -> [Token | add_roberts_dot(Tokens, element(2, Token))]. @@ -953,21 +955,22 @@ subst_pseudo_vars([H0 | T0], NmbrOfDaughters, St0) -> {H, St1} = subst_pseudo_vars(H0, NmbrOfDaughters, St0), {T, St} = subst_pseudo_vars(T0, NmbrOfDaughters, St1), {[H | T], St}; -subst_pseudo_vars({atom, Line, Atom}, NmbrOfDaughters, St0) -> +subst_pseudo_vars({atom, Anno, Atom}, NmbrOfDaughters, St0) -> case atom_to_list(Atom) of [$$ | Rest] -> try list_to_integer(Rest) of N when N > 0, N =< NmbrOfDaughters -> - {{var, Line, list_to_atom(append("__", Rest))}, St0}; + {{var, Anno, list_to_atom(append("__", Rest))}, St0}; _ -> - St = add_error(Line, {undefined_pseudo_variable, Atom}, + St = add_error(Anno, + {undefined_pseudo_variable, Atom}, St0), - {{atom, Line, '$undefined'}, St} + {{atom, Anno, '$undefined'}, St} catch - error: _ -> {{atom, Line, Atom}, St0} + error: _ -> {{atom, Anno, Atom}, St0} end; _ -> - {{atom, Line, Atom}, St0} + {{atom, Anno, Atom}, St0} end; subst_pseudo_vars(Tuple, NmbrOfDaughters, St0) when is_tuple(Tuple) -> {L, St} = subst_pseudo_vars(tuple_to_list(Tuple), NmbrOfDaughters, St0), @@ -1806,9 +1809,9 @@ report_conflict(Conflict, St, ActionName, How) -> Formated = format_symbol(ActionName), case How of prec -> - io:fwrite(<<"Resolved in favor of ~s.\n\n">>, [Formated]); + io:fwrite(<<"Resolved in favor of ~ts.\n\n">>, [Formated]); default -> - io:fwrite(<<"Conflict resolved in favor of ~s.\n\n">>, + io:fwrite(<<"Conflict resolved in favor of ~ts.\n\n">>, [Formated]) end; true -> @@ -1853,7 +1856,7 @@ format_conflict({Symbol, N, _, {one_level_up, {L1, RuleN1, {P1, Ass1}}, {L2, RuleN2, {P2, Ass2}}}}) -> S1 = io_lib:fwrite(<<"Conflicting precedences of symbols when " - "scanning ~s in state ~w:\n">>, + "scanning ~ts in state ~w:\n">>, [format_symbol(Symbol), N]), S2 = io_lib:fwrite(<<" ~s ~w (rule ~w at line ~w)\n" " vs.\n">>, @@ -1863,26 +1866,26 @@ format_conflict({Symbol, N, _, {one_level_up, [S1, S2, S3]; format_conflict({Symbol, N, Reduce, Confl}) -> S1 = io_lib:fwrite(<<"Parse action conflict scanning symbol " - "~s in state ~w:\n">>, [format_symbol(Symbol), N]), + "~ts in state ~w:\n">>, [format_symbol(Symbol), N]), S2 = case Reduce of {[HR | TR], RuleNmbr, RuleLine} -> - io_lib:fwrite(<<" Reduce to ~s from ~s (rule ~w at " + io_lib:fwrite(<<" Reduce to ~ts from ~ts (rule ~w at " "line ~w)\n vs.\n">>, [format_symbol(HR), format_symbols(TR), RuleNmbr, RuleLine]) end, S3 = case Confl of {reduce, [HR2|TR2], RuleNmbr2, RuleLine2} -> - io_lib:fwrite(<<" reduce to ~s from ~s " + io_lib:fwrite(<<" reduce to ~ts from ~ts " "(rule ~w at line ~w).">>, [format_symbol(HR2), format_symbols(TR2), RuleNmbr2, RuleLine2]); {shift, NewState, Sym} -> io_lib:fwrite(<<" shift to state ~w, adding right " - "sisters to ~s.">>, + "sisters to ~ts.">>, [NewState, format_symbol(Sym)]); {accept, Rootsymbol} -> - io_lib:fwrite(<<" reduce to rootsymbol ~s.">>, + io_lib:fwrite(<<" reduce to rootsymbol ~ts.">>, [format_symbol(Rootsymbol)]) end, [S1, S2, S3]. @@ -1923,8 +1926,9 @@ format_conflict({Symbol, N, Reduce, Confl}) -> -define(CODE_VERSION, "1.4"). -define(YECC_BUG(M, A), - iolist_to_binary([" erlang:error({yecc_bug,\"",?CODE_VERSION,"\",", - io_lib:fwrite(M, A), "}).\n\n"])). + unicode:characters_to_binary( + [" erlang:error({yecc_bug,\"",?CODE_VERSION,"\",", + io_lib:fwrite(M, A), "}).\n\n"])). %% Returns number of newlines in included files. output_prelude(Outport, Inport, St0) when St0#yecc.includefile =:= [] -> @@ -1977,8 +1981,9 @@ output_header(St0) -> output_goto(St, [{_Nonterminal, []} | Go], StateInfo) -> output_goto(St, Go, StateInfo); output_goto(St0, [{Nonterminal, List} | Go], StateInfo) -> - F = function_name(yeccgoto, Nonterminal), - St10 = output_goto1(St0, List, F, StateInfo, true), + F = function_name(St0, yeccgoto, Nonterminal), + St05 = fwrite(St0, <<"-dialyzer({nowarn_function, ~w/7}).\n">>, [F]), + St10 = output_goto1(St05, List, F, StateInfo, true), St = output_goto_fini(F, Nonterminal, St10), output_goto(St, Go, StateInfo); output_goto(St, [], _StateInfo) -> @@ -2014,7 +2019,8 @@ output_goto_fini(F, NT, #yecc{includefile_version = {1,1}}=St0) -> St = fwrite(St10, <<"~w(State, _Cat, _Ss, _Stack, _T, _Ts, _Tzr) ->\n">>, [F]), fwrite(St, - ?YECC_BUG(<<"{~w, State, missing_in_goto_table}">>, [NT]), + ?YECC_BUG(<<"{~ts, State, missing_in_goto_table}">>, + [quoted_atom(St0, NT)]), []); output_goto_fini(_F, _NT, St) -> fwrite(St, <<".\n\n">>, []). @@ -2023,7 +2029,7 @@ output_goto_fini(_F, _NT, St) -> find_user_code(ParseActions, St) -> [#user_code{state = State, terminal = Terminal, - funname = inlined_function_name(State, Terminal), + funname = inlined_function_name(St, State, Terminal), action = Action} || {State, La_actions} <- ParseActions, {Action, Terminals, RuleNmbr, NmbrOfDaughters} @@ -2144,14 +2150,14 @@ output_action(St, State, Terminal, #reduce{}=Action, IsFirst, SI) -> output_reduce(St, State, Terminal, Action, IsFirst, SI); output_action(St0, State, Terminal, #shift{state = NewState}, IsFirst, _SI) -> St10 = delim(St0, IsFirst), - St = fwrite(St10, <<"yeccpars2_~w(S, ~s, Ss, Stack, T, Ts, Tzr) ->\n">>, - [State, quoted_atom(Terminal)]), + St = fwrite(St10, <<"yeccpars2_~w(S, ~ts, Ss, Stack, T, Ts, Tzr) ->\n">>, + [State, quoted_atom(St10, Terminal)]), output_call_to_includefile(NewState, St); output_action(St0, State, Terminal, accept, IsFirst, _SI) -> St10 = delim(St0, IsFirst), St = fwrite(St10, - <<"yeccpars2_~w(_S, ~s, _Ss, Stack, _T, _Ts, _Tzr) ->\n">>, - [State, quoted_atom(Terminal)]), + <<"yeccpars2_~w(_S, ~ts, _Ss, Stack, _T, _Ts, _Tzr) ->\n">>, + [State, quoted_atom(St10, Terminal)]), fwrite(St, <<" {ok, hd(Stack)}">>, []); output_action(St, _State, _Terminal, nonassoc, _IsFirst, _SI) -> St. @@ -2170,19 +2176,19 @@ output_state_actions_fini(State, IsFirst, St0) -> St = fwrite(St10, <<"yeccpars2_~w(_, _, _, _, T, _, _) ->\n">>, [State]), fwrite(St, <<" yeccerror(T).\n\n">>, []). -output_reduce(St0, State, Terminal0, +output_reduce(St0, State, Terminal, #reduce{rule_nmbr = RuleNmbr, head = Head, nmbr_of_daughters = NmbrOfDaughters}, IsFirst, StateInfo) -> St10 = delim(St0, IsFirst), - Terminal = if - is_atom(Terminal0) -> quoted_atom(Terminal0); - true -> Terminal0 - end, + QuotedTerminal = if + is_atom(Terminal) -> quoted_atom(St10, Terminal); + true -> Terminal + end, St20 = fwrite(St10, - <<"yeccpars2_~w(_S, ~s, Ss, Stack, T, Ts, Tzr) ->\n">>, - [State, Terminal]), + <<"yeccpars2_~w(_S, ~ts, Ss, Stack, T, Ts, Tzr) ->\n">>, + [State, QuotedTerminal]), St30 = if NmbrOfDaughters < 2 -> @@ -2201,7 +2207,7 @@ output_reduce(St0, State, Terminal0, _ -> NewStack = "NewStack", fwrite(St30, <<" NewStack = ~w(Stack),\n">>, - [inlined_function_name(State, Terminal0)]) + [inlined_function_name(St30, State, Terminal)]) end, if NmbrOfDaughters =:= 0 -> @@ -2217,13 +2223,13 @@ output_reduce(St0, State, Terminal0, St = fwrite(St40, <<"~s">>, [C]), %% Short-circuit call to yeccpars2: fwrite(St, - <<" yeccpars2_~w(~s, ~s, [~w | Ss], ~s, T, Ts, Tzr)">>, - [Repr, NextS, Terminal, State, NewStack]); + <<" yeccpars2_~w(~s, ~ts, [~w | Ss], ~s, T, Ts, Tzr)">>, + [Repr, NextS, QuotedTerminal, State, NewStack]); true -> fwrite(St40, - <<" ~w(hd(~s), ~s, ~s, ~s, T, Ts, Tzr)">>, - [function_name(yeccgoto, Head), Ns, - Terminal, Ns, NewStack]) + <<" ~w(hd(~s), ~ts, ~s, ~s, T, Ts, Tzr)">>, + [function_name(St40, yeccgoto, Head), Ns, + QuotedTerminal, Ns, NewStack]) end. delim(St, true) -> @@ -2231,8 +2237,10 @@ delim(St, true) -> delim(St, false) -> fwrite(St, <<";\n">>, []). -quoted_atom(Atom) -> - io_lib:fwrite(<<"~w">>, [Atom]). +quoted_atom(#yecc{encoding = latin1}, Atom) when is_atom(Atom) -> + io_lib:write_atom_as_latin1(Atom); +quoted_atom(_St, Atomic) -> + io_lib:write(Atomic). output_inlined(St, UserCodeActions, Infile) -> foldl(fun(#user_code{funname = InlinedFunctionName, @@ -2284,19 +2292,21 @@ output_inlined(St0, FunctionName, Reduce, Infile) -> fwrite(St, <<" [begin\n ~ts\n end | ~s].\n\n">>, [pp_tokens(Tokens, Line0, St#yecc.encoding), Stack]). -inlined_function_name(State, "Cat") -> - inlined_function_name(State, ""); -inlined_function_name(State, Terminal) -> - list_to_atom(concat([yeccpars2_, State, '_', Terminal])). +inlined_function_name(St, State, Terminal) -> + End = case Terminal of + "Cat" -> []; + _ -> [quoted_atom(St, Terminal)] + end, + list_to_atom(concat([yeccpars2_, State, '_'] ++ End)). --compile({nowarn_unused_function,function_name/2}). -function_name(Name, Suf) -> - list_to_atom(concat([Name, '_' | quoted_atom(Suf)])). +-compile({nowarn_unused_function,function_name/3}). +function_name(St, Name, Suf) -> + list_to_atom(concat([Name, '_'] ++ [quoted_atom(St, Suf)])). rule(RulePointer, St) -> - #rule{n = N, line = Line, symbols = Symbols} = + #rule{n = N, anno = Anno, symbols = Symbols} = dict:fetch(RulePointer, St#yecc.rule_pointer2rule), - {Symbols, Line, N}. + {Symbols, Anno, N}. get_rule(RuleNmbr, St) -> dict:fetch(RuleNmbr, St#yecc.rule_pointer2rule). @@ -2462,7 +2472,7 @@ include(St, File, Outport) -> include1(eof, _, _, _File, L, _St) -> L; include1({error, _}=_Error, _Inport, _Outport, File, L, St) -> - throw(add_error(File, L, cannot_parse, St)); + throw(add_error(File, erl_anno:new(L), cannot_parse, St)); include1(Line, Inport, Outport, File, L, St) -> Incr = case member($\n, Line) of true -> 1; @@ -2487,7 +2497,7 @@ includefile_version(Includefile) -> parse_file(Epp) -> case epp:parse_erl_form(Epp) of - {ok, {function,_Line,yeccpars1,7,_Clauses}} -> + {ok, {function,_Anno,yeccpars1,7,_Clauses}} -> {1,4}; {eof,_Line} -> {1,1}; @@ -2502,7 +2512,7 @@ pp_tokens(Tokens, Line0, Enc) -> pp_tokens1([], _Line0, _Enc, _T0) -> []; pp_tokens1([T | Ts], Line0, Enc, T0) -> - Line = element(2, T), + Line = location(anno(T)), [pp_sep(Line, Line0, T0), pp_symbol(T, Enc)|pp_tokens1(Ts, Line, Enc, T)]. pp_symbol({var,_,Var}, _Enc) -> Var; @@ -2537,10 +2547,17 @@ output_file_directive(St, _Filename, _Line) -> St. first_line(Tokens) -> - element(2, hd(Tokens)). + location(anno(hd(Tokens))). last_line(Tokens) -> - element(2, lists:last(Tokens)). + location(anno(lists:last(Tokens))). + +location(none) -> none; +location(Anno) -> + erl_anno:line(Anno). + +anno(Token) -> + element(2, Token). %% Keep track of the current line in the generated file. fwrite(#yecc{outport = Outport, line = Line}=St, Format, Args) -> @@ -2580,18 +2597,18 @@ format_symbol(Symbol) -> String = concat([Symbol]), case erl_scan:string(String) of {ok, [{atom, _, _}], _} -> - io_lib:fwrite(<<"~w">>, [Symbol]); + io_lib:fwrite(<<"~tw">>, [Symbol]); {ok, [{Word, _}], _} when Word =/= ':', Word =/= '->' -> case erl_scan:reserved_word(Word) of true -> String; false -> - io_lib:fwrite(<<"~w">>, [Symbol]) + io_lib:fwrite(<<"~tw">>, [Symbol]) end; {ok, [{var, _, _}], _} -> String; _ -> - io_lib:fwrite(<<"~w">>, [Symbol]) + io_lib:fwrite(<<"~tw">>, [Symbol]) end. inverse(L) -> |