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-rw-r--r--lib/parsetools/src/leex.erl135
1 files changed, 77 insertions, 58 deletions
diff --git a/lib/parsetools/src/leex.erl b/lib/parsetools/src/leex.erl
index d0b4b9efe7..942e9928b1 100644
--- a/lib/parsetools/src/leex.erl
+++ b/lib/parsetools/src/leex.erl
@@ -35,7 +35,7 @@
-export([compile/3,file/1,file/2,format_error/1]).
-import(lists, [member/2,reverse/1,sort/1,delete/2,
- keysort/2,keydelete/3,keyfind/3,
+ keysort/2,keydelete/3,
map/2,foldl/3,foreach/2,flatmap/2]).
-import(string, [substr/2,substr/3,span/2]).
-import(ordsets, [is_element/2,add_element/2,union/2]).
@@ -58,7 +58,7 @@
gfile=[], % Graph file
module, % Module name
opts=[], % Options
- posix=false, % POSIX regular expressions
+ % posix=false, % POSIX regular expressions
errors=[],
warnings=[]
}).
@@ -107,10 +107,15 @@ file(File, Opts0) ->
St = try
{ok,REAs,Actions,Code,St2} = parse_file(St1),
{DFA,DF} = make_dfa(REAs, St2),
- St3 = out_file(St2, DFA, DF, Actions, Code),
- case lists:member(dfa_graph, St3#leex.opts) of
- true -> out_dfa_graph(St3, DFA, DF);
- false -> St3
+ case werr(St2) of
+ false ->
+ St3 = out_file(St2, DFA, DF, Actions, Code),
+ case lists:member(dfa_graph, St3#leex.opts) of
+ true -> out_dfa_graph(St3, DFA, DF);
+ false -> St3
+ end;
+ true ->
+ St2
end
catch #leex{}=St4 ->
St4
@@ -131,8 +136,8 @@ format_error({regexp,E})->
"unterminated " ++ Cs;
{illegal_char,Cs} ->
"illegal character " ++ Cs;
- {posix_cc,What} ->
- ["illegal POSIX character class ",io_lib:write_string(What)];
+%% {posix_cc,What} ->
+%% ["illegal POSIX character class ",io_lib:write_string(What)];
{char_class,What} ->
["illegal character class ",io_lib:write_string(What)]
end,
@@ -163,7 +168,8 @@ options(Options0) when is_list(Options0) ->
(T) -> [T]
end, Options0),
options(Options, [scannerfile,includefile,report_errors,
- report_warnings,return_errors,return_warnings,
+ report_warnings,warnings_as_errors,
+ return_errors,return_warnings,
verbose,dfa_graph], [])
catch error: _ -> badarg
end;
@@ -217,6 +223,7 @@ default_option(dfa_graph) -> false;
default_option(includefile) -> [];
default_option(report_errors) -> true;
default_option(report_warnings) -> true;
+default_option(warnings_as_errors) -> false;
default_option(return_errors) -> false;
default_option(return_warnings) -> false;
default_option(scannerfile) -> [];
@@ -225,6 +232,7 @@ default_option(verbose) -> false.
atom_option(dfa_graph) -> {dfa_graph,true};
atom_option(report_errors) -> {report_errors,true};
atom_option(report_warnings) -> {report_warnings,true};
+atom_option(warnings_as_errors) -> {warnings_as_errors,true};
atom_option(return_errors) -> {return_errors,true};
atom_option(return_warnings) -> {return_warnings,true};
atom_option(verbose) -> {verbose,true};
@@ -251,19 +259,29 @@ leex_ret(St) ->
report_warnings(St),
Es = pack_errors(St#leex.errors),
Ws = pack_warnings(St#leex.warnings),
+ Werr = werr(St),
if
+ Werr ->
+ do_error_return(St, Es, Ws);
Es =:= [] ->
case member(return_warnings, St#leex.opts) of
true -> {ok, St#leex.efile, Ws};
false -> {ok, St#leex.efile}
end;
- true ->
- case member(return_errors, St#leex.opts) of
- true -> {error, Es, Ws};
- false -> error
- end
+ true ->
+ do_error_return(St, Es, Ws)
end.
+do_error_return(St, Es, Ws) ->
+ case member(return_errors, St#leex.opts) of
+ true -> {error, Es, Ws};
+ false -> error
+ end.
+
+werr(St) ->
+ member(warnings_as_errors, St#leex.opts)
+ andalso length(St#leex.warnings) > 0.
+
pack_errors([{File,_} | _] = Es) ->
[{File, flatmap(fun({_,E}) -> [E] end, sort(Es))}];
pack_errors([]) ->
@@ -296,6 +314,7 @@ report_warnings(St) ->
end, sort(St#leex.warnings))
end, report_warnings, St#leex.opts).
+-spec add_error(_, #leex{}) -> no_return().
add_error(E, St) ->
add_error(St#leex.xfile, E, St).
@@ -644,14 +663,14 @@ re_repeat1([$*|Cs], Sn, S, St) -> re_repeat1(Cs, Sn, {kclosure,S}, St);
re_repeat1([$+|Cs], Sn, S, St) -> re_repeat1(Cs, Sn, {pclosure,S}, St);
re_repeat1([$?|Cs], Sn, S, St) -> re_repeat1(Cs, Sn, {optional,S}, St);
%% { only starts interval when ere is true, otherwise normal character.
-re_repeat1([${|Cs0], Sn, S, #leex{posix=true}=St) -> % $}
- case re_interval_range(Cs0) of
- {Min,Max,[$}|Cs1]} when is_integer(Min), is_integer(Max), Min =< Max ->
- re_repeat1(Cs1, Sn, {interval,S,Min,Max}, St);
- {Min,Max,[$}|Cs1]} when is_integer(Min), is_atom(Max) ->
- re_repeat1(Cs1, Sn, {interval,S,Min,Max}, St);
- {_,_,Cs1} -> parse_error({interval_range,string_between([${|Cs0], Cs1)})
- end;
+%% re_repeat1([${|Cs0], Sn, S, #leex{posix=true}=St) -> % $}
+%% case re_interval_range(Cs0) of
+%% {Min,Max,[$}|Cs1]} when is_integer(Min), is_integer(Max), Min =< Max ->
+%% re_repeat1(Cs1, Sn, {interval,S,Min,Max}, St);
+%% {Min,Max,[$}|Cs1]} when is_integer(Min), is_atom(Max) ->
+%% re_repeat1(Cs1, Sn, {interval,S,Min,Max}, St);
+%% {_,_,Cs1} -> parse_error({interval_range,string_between([${|Cs0], Cs1)})
+%% end;
re_repeat1(Cs, Sn, S, _) -> {S,Sn,Cs}.
%% re_single(Chars, SubNumber, State) -> {RegExp,SubNumber,Chars}.
@@ -733,7 +752,7 @@ special_char($|, _) -> true;
special_char($*, _) -> true;
special_char($+, _) -> true;
special_char($?, _) -> true;
-special_char(${, #leex{posix=true}) -> true; % Only when POSIX set
+%% special_char(${, #leex{posix=true}) -> true; % Only when POSIX set
special_char($\\, _) -> true;
special_char(_, _) -> false.
@@ -744,12 +763,12 @@ re_char_class([$]|Cs], St) -> % Must special case this.
re_char_class(Cs, [$]], St);
re_char_class(Cs, St) -> re_char_class(Cs, [], St).
-re_char_class("[:" ++ Cs0, Cc, #leex{posix=true}=St) ->
- %% POSIX char class only.
- case posix_cc(Cs0) of
- {Pcl,":]" ++ Cs1} -> re_char_class(Cs1, [{posix,Pcl}|Cc], St);
- {_,Cs1} -> parse_error({posix_cc,string_between(Cs0, Cs1)})
- end;
+%% re_char_class("[:" ++ Cs0, Cc, #leex{posix=true}=St) ->
+%% %% POSIX char class only.
+%% case posix_cc(Cs0) of
+%% {Pcl,":]" ++ Cs1} -> re_char_class(Cs1, [{posix,Pcl}|Cc], St);
+%% {_,Cs1} -> parse_error({posix_cc,string_between(Cs0, Cs1)})
+%% end;
re_char_class([C1|Cs0], Cc, St) when C1 =/= $] ->
case re_char(C1, Cs0) of
{Cf,[$-,C2|Cs1]} when C2 =/= $] ->
@@ -766,19 +785,19 @@ re_char_class(Cs, Cc, _) -> {reverse(Cc),Cs}. % Preserve order
%% posix_cc(String) -> {PosixClass,RestString}.
%% Handle POSIX character classes.
-posix_cc("alnum" ++ Cs) -> {alnum,Cs};
-posix_cc("alpha" ++ Cs) -> {alpha,Cs};
-posix_cc("blank" ++ Cs) -> {blank,Cs};
-posix_cc("cntrl" ++ Cs) -> {cntrl,Cs};
-posix_cc("digit" ++ Cs) -> {digit,Cs};
-posix_cc("graph" ++ Cs) -> {graph,Cs};
-posix_cc("lower" ++ Cs) -> {lower,Cs};
-posix_cc("print" ++ Cs) -> {print,Cs};
-posix_cc("punct" ++ Cs) -> {punct,Cs};
-posix_cc("space" ++ Cs) -> {space,Cs};
-posix_cc("upper" ++ Cs) -> {upper,Cs};
-posix_cc("xdigit" ++ Cs) -> {xdigit,Cs};
-posix_cc(Cs) -> parse_error({posix_cc,substr(Cs, 1, 5)}).
+%% posix_cc("alnum" ++ Cs) -> {alnum,Cs};
+%% posix_cc("alpha" ++ Cs) -> {alpha,Cs};
+%% posix_cc("blank" ++ Cs) -> {blank,Cs};
+%% posix_cc("cntrl" ++ Cs) -> {cntrl,Cs};
+%% posix_cc("digit" ++ Cs) -> {digit,Cs};
+%% posix_cc("graph" ++ Cs) -> {graph,Cs};
+%% posix_cc("lower" ++ Cs) -> {lower,Cs};
+%% posix_cc("print" ++ Cs) -> {print,Cs};
+%% posix_cc("punct" ++ Cs) -> {punct,Cs};
+%% posix_cc("space" ++ Cs) -> {space,Cs};
+%% posix_cc("upper" ++ Cs) -> {upper,Cs};
+%% posix_cc("xdigit" ++ Cs) -> {xdigit,Cs};
+%% posix_cc(Cs) -> parse_error({posix_cc,substr(Cs, 1, 5)}).
escape_char($n) -> $\n; % \n = LF
escape_char($r) -> $\r; % \r = CR
@@ -797,24 +816,24 @@ escape_char(C) -> C. % Pass it straight through
%% Int, -> Int,any
%% Int1,Int2 -> Int1,Int2
-re_interval_range(Cs0) ->
- case re_number(Cs0) of
- {none,Cs1} -> {none,none,Cs1};
- {N,[$,|Cs1]} ->
- case re_number(Cs1) of
- {none,Cs2} -> {N,any,Cs2};
- {M,Cs2} -> {N,M,Cs2}
- end;
- {N,Cs1} -> {N,none,Cs1}
- end.
+%% re_interval_range(Cs0) ->
+%% case re_number(Cs0) of
+%% {none,Cs1} -> {none,none,Cs1};
+%% {N,[$,|Cs1]} ->
+%% case re_number(Cs1) of
+%% {none,Cs2} -> {N,any,Cs2};
+%% {M,Cs2} -> {N,M,Cs2}
+%% end;
+%% {N,Cs1} -> {N,none,Cs1}
+%% end.
-re_number([C|Cs]) when C >= $0, C =< $9 ->
- re_number(Cs, C - $0);
-re_number(Cs) -> {none,Cs}.
+%% re_number([C|Cs]) when C >= $0, C =< $9 ->
+%% re_number(Cs, C - $0);
+%% re_number(Cs) -> {none,Cs}.
-re_number([C|Cs], Acc) when C >= $0, C =< $9 ->
- re_number(Cs, 10*Acc + (C - $0));
-re_number(Cs, Acc) -> {Acc,Cs}.
+%% re_number([C|Cs], Acc) when C >= $0, C =< $9 ->
+%% re_number(Cs, 10*Acc + (C - $0));
+%% re_number(Cs, Acc) -> {Acc,Cs}.
string_between(Cs1, Cs2) ->
substr(Cs1, 1, length(Cs1)-length(Cs2)).
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-11 04:42:43 +0000