aboutsummaryrefslogtreecommitdiffstats
path: root/lib/parsetools
diff options
context:
space:
mode:
authorHans Bolinder <[email protected]>2011-06-16 09:00:34 +0200
committerHans Bolinder <[email protected]>2011-06-16 09:00:34 +0200
commit3b4137c64d9259c9f5ac59b89ff44f340256ee7a (patch)
tree5b5901add5614c2875b7273aaa46b84d8f66191f /lib/parsetools
parent099f7ed216ab80e7ffa0618fdd77f2e221d052b4 (diff)
downloadotp-3b4137c64d9259c9f5ac59b89ff44f340256ee7a.tar.gz
otp-3b4137c64d9259c9f5ac59b89ff44f340256ee7a.tar.bz2
otp-3b4137c64d9259c9f5ac59b89ff44f340256ee7a.zip
Remove Dialyzer warnings
The code that deals with the POSIX version of regexps has been commented out. Robert will add an option as well as some way to set the option in the source file later.
Diffstat (limited to 'lib/parsetools')
-rw-r--r--lib/parsetools/src/leex.erl97
1 files changed, 49 insertions, 48 deletions
diff --git a/lib/parsetools/src/leex.erl b/lib/parsetools/src/leex.erl
index e49032ebe4..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=[]
}).
@@ -136,8 +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,
@@ -314,6 +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).
@@ -662,14 +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}.
@@ -751,7 +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($\\, _) -> true;
special_char(_, _) -> false.
@@ -762,12 +763,12 @@ re_char_class([$]|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 =/= $] ->
@@ -784,19 +785,19 @@ re_char_class(Cs, Cc, _) -> {reverse(Cc),Cs}. % Preserve order
%% posix_cc(String) -> {PosixClass,RestString}.
%% Handle POSIX character classes.
-posix_cc("alnum" ++ Cs) -> {alnum,Cs};
-posix_cc("alpha" ++ Cs) -> {alpha,Cs};
-posix_cc("blank" ++ Cs) -> {blank,Cs};
-posix_cc("cntrl" ++ Cs) -> {cntrl,Cs};
-posix_cc("digit" ++ Cs) -> {digit,Cs};
-posix_cc("graph" ++ Cs) -> {graph,Cs};
-posix_cc("lower" ++ Cs) -> {lower,Cs};
-posix_cc("print" ++ Cs) -> {print,Cs};
-posix_cc("punct" ++ Cs) -> {punct,Cs};
-posix_cc("space" ++ Cs) -> {space,Cs};
-posix_cc("upper" ++ Cs) -> {upper,Cs};
-posix_cc("xdigit" ++ Cs) -> {xdigit,Cs};
-posix_cc(Cs) -> parse_error({posix_cc,substr(Cs, 1, 5)}).
+%% posix_cc("alnum" ++ Cs) -> {alnum,Cs};
+%% posix_cc("alpha" ++ Cs) -> {alpha,Cs};
+%% posix_cc("blank" ++ Cs) -> {blank,Cs};
+%% posix_cc("cntrl" ++ Cs) -> {cntrl,Cs};
+%% posix_cc("digit" ++ Cs) -> {digit,Cs};
+%% posix_cc("graph" ++ Cs) -> {graph,Cs};
+%% posix_cc("lower" ++ Cs) -> {lower,Cs};
+%% posix_cc("print" ++ Cs) -> {print,Cs};
+%% posix_cc("punct" ++ Cs) -> {punct,Cs};
+%% posix_cc("space" ++ Cs) -> {space,Cs};
+%% posix_cc("upper" ++ Cs) -> {upper,Cs};
+%% posix_cc("xdigit" ++ Cs) -> {xdigit,Cs};
+%% posix_cc(Cs) -> parse_error({posix_cc,substr(Cs, 1, 5)}).
escape_char($n) -> $\n; % \n = LF
escape_char($r) -> $\r; % \r = CR
@@ -815,24 +816,24 @@ escape_char(C) -> C. % Pass it straight through
%% Int, -> Int,any
%% Int1,Int2 -> Int1,Int2
-re_interval_range(Cs0) ->
- case re_number(Cs0) of
- {none,Cs1} -> {none,none,Cs1};
- {N,[$,|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)).