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-rw-r--r--lib/parsetools/doc/src/leex.xml4
-rw-r--r--lib/parsetools/src/leex.erl38
-rw-r--r--lib/parsetools/test/leex_SUITE.erl13
3 files changed, 45 insertions, 10 deletions
diff --git a/lib/parsetools/doc/src/leex.xml b/lib/parsetools/doc/src/leex.xml
index 12abfd244f..1fa426a79e 100644
--- a/lib/parsetools/doc/src/leex.xml
+++ b/lib/parsetools/doc/src/leex.xml
@@ -79,6 +79,10 @@ Token = tuple()</code>
<item><p>Causes warnings to be printed as they occur. Default is
<c>true</c>.</p>
</item>
+ <tag><c>warnings_as_errors</c></tag>
+ <item>
+ <p>Causes warnings to be treated as errors.</p>
+ </item>
<tag><c>{report, bool()}</c></tag>
<item><p>This is a short form for both <c>report_errors</c> and
<c>report_warnings</c>.</p>
diff --git a/lib/parsetools/src/leex.erl b/lib/parsetools/src/leex.erl
index d0b4b9efe7..e49032ebe4 100644
--- a/lib/parsetools/src/leex.erl
+++ b/lib/parsetools/src/leex.erl
@@ -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
@@ -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([]) ->
diff --git a/lib/parsetools/test/leex_SUITE.erl b/lib/parsetools/test/leex_SUITE.erl
index 406c40b82a..48312445ef 100644
--- a/lib/parsetools/test/leex_SUITE.erl
+++ b/lib/parsetools/test/leex_SUITE.erl
@@ -152,6 +152,19 @@ file(Config) when is_list(Config) ->
?line writable(Dotfile),
file:delete(Dotfile),
+ Warn = <<"Definitions.1998\n"
+ "D = [0-9]\n"
+ "Rules.\n"
+ "{L}+ : {token,{word,TokenLine,TokenChars}}.\n"
+ "Erlang code.\n">>,
+ ok = file:write_file(Filename, Warn),
+ error = leex:file(Filename, [warnings_as_errors]),
+ error = leex:file(Filename, [return_warnings,warnings_as_errors]),
+ {ok,Scannerfile,[{Filename,[{1,leex,ignored_characters}]}]} =
+ leex:file(Filename, [return_warnings]),
+ {error,_,[{Filename,[{1,leex,ignored_characters}]}]} =
+ leex:file(Filename, [return_errors,warnings_as_errors]),
+
file:delete(Filename),
ok.