diff options
Diffstat (limited to 'lib/parsetools/src/yecc.erl')
| -rw-r--r-- | lib/parsetools/src/yecc.erl | 116 |
1 files changed, 61 insertions, 55 deletions
diff --git a/lib/parsetools/src/yecc.erl b/lib/parsetools/src/yecc.erl index 05446c1a85..48559ec402 100644 --- a/lib/parsetools/src/yecc.erl +++ b/lib/parsetools/src/yecc.erl @@ -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]); @@ -1809,9 +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 -> @@ -1856,7 +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">>, @@ -1866,26 +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]. @@ -1926,8 +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 =:= [] -> @@ -1980,7 +1981,7 @@ 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), + 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), @@ -2018,7 +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">>, []). @@ -2027,7 +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} @@ -2148,14 +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. @@ -2174,19 +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 -> @@ -2205,7 +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 -> @@ -2221,13 +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) -> @@ -2235,8 +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, @@ -2288,14 +2292,16 @@ 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, anno = Anno, symbols = Symbols} = |