%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2010-2011. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
-module(leex_SUITE).
%-define(debug, true).
-include_lib("stdlib/include/erl_compile.hrl").
-include_lib("kernel/include/file.hrl").
-ifdef(debug).
-define(line, put(line, ?LINE), ).
-define(config(X,Y), foo).
-define(datadir, "leex_SUITE_data").
-define(privdir, "leex_SUITE_priv").
-define(t, test_server).
-else.
-include_lib("test_server/include/test_server.hrl").
-define(datadir, ?config(data_dir, Config)).
-define(privdir, ?config(priv_dir, Config)).
-endif.
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
init_per_testcase/2, end_per_testcase/2]).
-export([
file/1, compile/1, syntax/1,
pt/1, man/1, ex/1, ex2/1, not_yet/1]).
% Default timetrap timeout (set in init_per_testcase).
-define(default_timeout, ?t:minutes(1)).
init_per_testcase(_Case, Config) ->
?line Dog = ?t:timetrap(?default_timeout),
[{watchdog, Dog} | Config].
end_per_testcase(_Case, Config) ->
Dog = ?config(watchdog, Config),
test_server:timetrap_cancel(Dog),
ok.
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[{group, checks}, {group, examples}].
groups() ->
[{checks, [], [file, compile, syntax]},
{examples, [], [pt, man, ex, ex2, not_yet]}].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
file(doc) ->
"Bad files and options.";
file(suite) -> [];
file(Config) when is_list(Config) ->
Dir = ?privdir,
Ret = [return, {report, false}],
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file("not_a_file", Ret),
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file("not_a_file", [{return,true}]),
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file("not_a_file", [{report,false},return_errors]),
?line error = leex:file("not_a_file"),
?line error = leex:file("not_a_file", [{return,false},report]),
?line error = leex:file("not_a_file", [return_warnings,{report,false}]),
Filename = filename:join(Dir, "file.xrl"),
file:delete(Filename),
?line {'EXIT', {badarg, _}} = (catch leex:file({foo})),
?line {'EXIT', {badarg, _}} =
(catch leex:file(Filename, {parserfile,{foo}})),
?line {'EXIT', {badarg, _}} =
(catch leex:file(Filename, {includefile,{foo}})),
?line {'EXIT', {badarg, _}} = (catch leex:file(Filename, no_option)),
?line {'EXIT', {badarg, _}} =
(catch leex:file(Filename, [return | report])),
?line {'EXIT', {badarg, _}} =
(catch leex:file(Filename, {return,foo})),
?line {'EXIT', {badarg, _}} =
(catch leex:file(Filename, includefile)),
Mini = <<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ : {token,{word,TokenLine,TokenChars}}.\n"
"Erlang code.\n">>,
?line ok = file:write_file(Filename, Mini),
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file(Filename, [{scannerfile,"//"} | Ret]),
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file(Filename, [{includefile,"//"} | Ret]),
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file(Filename, [{includefile,"/ /"} | Ret]),
LeexPre = filename:join(Dir, "leexinc.hrl"),
?line ok = file:write_file(LeexPre, <<"syntax error.\n">>),
PreErrors = run_test(Config, Mini, LeexPre),
?line {errors,
[{1,_,["syntax error before: ","error"]},
{3,_,undefined_module}],
[]} =
extract(LeexPre, PreErrors),
file:delete(LeexPre),
Ret2 = [return, report_errors, report_warnings, verbose],
Scannerfile = filename:join(Dir, "file.erl"),
?line ok = file:write_file(Scannerfile, <<"nothing">>),
?line unwritable(Scannerfile),
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file(Filename, Ret2),
?line writable(Scannerfile),
file:delete(Scannerfile),
Dotfile = filename:join(Dir, "file.dot"),
?line ok = file:write_file(Dotfile, <<"nothing">>),
?line unwritable(Dotfile),
?line {error,[{_,[{none,leex,{file_error,_}}]}],[]} =
leex:file(Filename, [dfa_graph | Ret2]),
?line writable(Dotfile),
file:delete(Dotfile),
ok = file:delete(Scannerfile),
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]),
false = filelib:is_regular(Scannerfile),
error = leex:file(Filename, [return_warnings,warnings_as_errors]),
false = filelib:is_regular(Scannerfile),
{error,_,[{Filename,[{1,leex,ignored_characters}]}]} =
leex:file(Filename, [return_errors,warnings_as_errors]),
false = filelib:is_regular(Scannerfile),
{ok,Scannerfile,[{Filename,[{1,leex,ignored_characters}]}]} =
leex:file(Filename, [return_warnings]),
true = filelib:is_regular(Scannerfile),
file:delete(Filename),
ok.
compile(doc) ->
"Check of compile/3.";
compile(suite) -> [];
compile(Config) when is_list(Config) ->
Dir = ?privdir,
Filename = filename:join(Dir, "file.xrl"),
Scannerfile = filename:join(Dir, "file.erl"),
Mini = <<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ : {token,{word,TokenLine,TokenChars}}.\n"
"Erlang code.\n">>,
?line ok = file:write_file(Filename, Mini),
?line error = leex:compile(Filename, "//", #options{}),
?line ok = leex:compile(Filename, Scannerfile, #options{}),
file:delete(Scannerfile),
file:delete(Filename),
ok.
syntax(doc) ->
"Syntax checks.";
syntax(suite) -> [];
syntax(Config) when is_list(Config) ->
Dir = ?privdir,
Filename = filename:join(Dir, "file.xrl"),
Ret = [return, {report, true}],
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"%% comment\n"
"Rules.\n"
"{L}+ : {token,{word,TokenLine,TokenChars}}.\n
">>),
?line {error,[{_,[{7,leex,missing_code}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ : \n">>),
?line {error,[{_,[{5,leex,missing_code}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"[] :">>),
?line {error,[{_,[{4,leex,{regexp,_}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ : .\n"
"[] : ">>),
?line {error,[{_,[{5,leex,{regexp,_}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"[] : .\n">>),
?line {error,[{_,[{4,leex,{regexp,_}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ ">>),
?line {error,[{_,[{5,leex,bad_rule}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ ; ">>),
?line {error,[{_,[{4,leex,bad_rule}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"[] : '99\n">>),
?line {error,[{_,[{4,erl_scan,_}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n">>),
?line {error,[{_,[{3,leex,empty_rules}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"Erlang code.\n">>),
?line {error,[{_,[{4,leex,empty_rules}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n">>),
?line {error,[{_,[{2,leex,missing_rules}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Erlang code.\n">>),
?line {error,[{_,[{3,leex,missing_rules}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"">>),
%% This is a weird line:
?line {error,[{_,[{0,leex,missing_defs}]}],[]} = leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Rules.\n">>),
?line {error,[{_,[{1,leex,missing_defs}]}],[]} = leex:file(Filename, Ret),
%% Check that correct line number is used in messages.
ErlFile = filename:join(Dir, "file.erl"),
Ret1 = [{scannerfile,ErlFile}|Ret],
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ : {token,\n"
" {word,TokenLine,TokenChars,\n"
" DDDD}}.\n" % unbound
"Erlang code.\n"
"an error.\n">>), % syntax error
?line {ok, _, []} = leex:file(Filename, Ret1),
?line {error,
[{_,[{8,_,["syntax error before: ","error"]}]},
{_,[{6,_,{unbound_var,'DDDD'}}]}],
[]} =
compile:file(ErlFile, [basic_validation, return]),
%% Ignored characters
?line ok = file:write_file(Filename,
<<"Definitions. D = [0-9]\n"
"Rules. [a-z] : .\n"
"1 : skip_token.\n"
"Erlang code. f() -> a.\n">>),
?line {ok,_,[{_,
[{1,leex,ignored_characters},
{2,leex,ignored_characters},
{4,leex,ignored_characters}]}]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+\\ : token.\n">>),
?line {error,[{_,[{4,leex,{regexp,{unterminated,"\\"}}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+\\x : token.\n">>),
?line {error,[{_,[{4,leex,{regexp,{illegal_char,"\\x"}}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+\\x{ : token.\n">>),
?line {error,[{_,[{4,leex,{regexp,{unterminated,"\\x{"}}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"[^ab : token.\n">>),
?line {error,[{_,[{4,leex,{regexp,{unterminated,"["}}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"(a : token.\n">>),
?line {error,[{_,[{4,leex,{regexp,{unterminated,"("}}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"[b-a] : token.\n">>),
?line {error,[{_,[{4,leex,{regexp,{char_class,"b-a"}}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"\\x{333333333333333333333333} : token.\n">>),
?line {error,[{_,[{4,leex,{regexp,
{illegal_char,
"\\x{333333333333333333333333}"}}}]}],[]} =
leex:file(Filename, Ret),
ok.
pt(doc) ->
"Pushing back characters.";
pt(suite) -> [];
pt(Config) when is_list(Config) ->
%% Needs more testing...
Ts = [{pt_1,
<<"Definitions.\n"
"D = [0-9]\n"
"L = [a-z]\n"
"Rules.\n"
"{L}+ : {token,{word,TokenLine,TokenChars}}.\n"
"abc{D}+ : {skip_token,\"sture\" ++ string:substr(TokenChars, 4)}.\n"
"{D}+ : {token,{integer,TokenLine,list_to_integer(TokenChars)}}.\n"
"\\s : .\n"
"\\r\\n : {end_token,{crlf,TokenLine}}.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->
{ok,[{word,1,\"sture\"},{integer,1,123}],1} =
string(\"abc123\"), ok. ">>,
default,
ok}],
?line run(Config, Ts),
ok.
man(doc) ->
"Examples from the manpage.";
man(suite) -> [];
man(Config) when is_list(Config) ->
Ts = [{man_1,
<<"Definitions.\n"
"Rules.\n"
"[a-z][0-9a-zA-Z_]* :\n"
" {token,{atom,TokenLine,list_to_atom(TokenChars)}}.\n"
"[A-Z_][0-9a-zA-Z_]* :\n"
" {token,{var,TokenLine,list_to_atom(TokenChars)}}.\n"
"(\\+|-)?[0-9]+\\.[0-9]+((E|e)(\\+|-)?[0-9]+)? : \n"
" {token,{float,TokenLine,list_to_float(TokenChars)}}.\n"
"\\s : skip_token.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" {ok,[{float,1,3.14},{atom,1,atom},{var,1,'V314'}],1} =\n"
" string(\"3.14atom V314\"),\n"
" ok.\n">>,
default,
ok},
{man_2,
<<"Definitions.\n"
"D = [0-9]\n"
"Rules.\n"
"{D}+ :\n"
" {token,{integer,TokenLine,list_to_integer(TokenChars)}}.\n"
"{D}+\\.{D}+((E|e)(\\+|\\-)?{D}+)? :\n"
" {token,{float,TokenLine,list_to_float(TokenChars)}}.\n"
"\\s : skip_token.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" {ok,[{float,1,3.14},{integer,1,314}],1} = \n"
" string(\"3.14 314\"),\n"
" ok.\n">>,
default,
ok}],
?line run(Config, Ts),
ok.
ex(doc) ->
"Examples.";
ex(suite) -> [];
ex(Config) when is_list(Config) ->
Ts = [{ex_1,
<<"Definitions.\n"
"D = [0-543-705-982]\n"
"Rules.\n"
"{D}+ :\n"
" {token,{integer,TokenLine,list_to_integer(TokenChars)}}.\n"
"[^235]+ :\n"
" {token,{list_to_atom(TokenChars),TokenLine}}.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" {ok,[{integer,1,12},{' c\\na',1},{integer,2,34},{b789a,2}],2} =\n"
" string(\"12 c\\na34b789a\"),\n"
" ok.\n">>,
default,
ok},
{ex_2,
<<"Definitions.\n"
"L = [a-z]\n"
"D = [0-9]\n"
"Rules.\n"
"{L}+ : {token,chars}.\n"
"zyx{D}+ : {token,zyx}.\n"
"\\s : skip_token.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" {ok,[chars,zyx],1} = string(\"abcdef zyx123\"),\n"
" ok.\n">>,
default,
ok},
{ex_3,
<<"Definitions.\n"
"NL = [\\n]\n"
"Rules.\n"
"{NL}* : {token,newlines}.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" {ok,[],1} = string(\"\"), ok.\n">>, % string("a") would loop...
default,
ok},
{ex_4,
<<"Definitions.\n"
"SP1 = [\\n-\\s]\n"
"SP0 = [\\000-\\n]\n"
"Rules.\n"
"{SP0}+ : {token,{small,TokenChars}}.\n"
"{SP1}+ : {token,{big,TokenChars}}.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" string(\"\\x00\\n\\s\\n\\n\"),\n"
" ok.\n">>,
default,
ok},
{ex_5,
<<"Definitions.\n"
"L = [a-z]\n"
"W = [\\s\\b\\n\\r\\t\\e\\v\\d\\f]\n"
"Rules.\n"
"\\[{L}+(,{L}+)*\\] : {token,{list,TokenChars}}.\n"
"\"{L}+\" : {token,{string,TokenChars}}.\n"
"\\$. : {token,{char,TokenChars}}.\n"
"{W}+ : {token,{white,TokenChars}}.\n"
"ff\\f+ : {token,{form,TokenChars}}.\n"
"\\$\\^+\\\\+ : {token,{other,TokenChars}}.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" {ok,[{white,\"\\b\\f\"}],1} = string(\"\\b\\f\"),\n"
" {ok,[{form,\"ff\\f\"}],1} = string(\"ff\\f\"),\n"
" {ok,[{string,\"\\\"foo\\\"\"}],1} = string(\"\\\"foo\\\"\"),\n"
" {ok,[{char,\"$.\"}],1} = string(\"$\\.\"),\n"
" {ok,[{list,\"[a,b,c]\"}],1} = string(\"[a,b,c]\"),\n"
" {ok,[{other,\"$^\\\\\"}],1} = string(\"$^\\\\\"),\n"
" ok.\n">>,
default,
ok},
{ex_6,
<<"Definitions.\n"
"L = [a-z]\n"
"Rules.\n"
"L}+ : {token,{TokenChars,#r.f}}.\n"
"Erlang code.\n"
"-record(r, {f}).\n"
"-export([t/0]).\n"
"t() ->\n"
" string(\"abc\"),\n"
" ok.\n">>,
default,
ok},
{ex_7, %% Assumes regexp can handle \x
<<"Definitions.\n"
"H1 = \\x11\\x{ab}\n"
"H2 = [\\x{30}\\x{ac}]\n"
"Rules.\n"
"{H1}{H2}+ : {token,{hex,TokenChars}}.\n"
"Erlang code.\n"
"-export([t/0]).\n"
"t() ->\n"
" {ok,[{hex,[17,171,48,172]}],1} =\n"
" string(\"\\x{11}\\xab0\\xac\"),\n"
" ok.\n">>,
default,
ok}],
?line run(Config, Ts),
ok.
ex2(doc) ->
"More examples.";
ex2(suite) -> [];
ex2(Config) when is_list(Config) ->
Xrl =
<<"
%%% File : erlang_scan.xrl
%%% Author : Robert Virding
%%% Purpose : Token definitions for Erlang.
Definitions.
O = [0-7]
D = [0-9]
H = [0-9a-fA-F]
U = [A-Z]
L = [a-z]
A = ({U}|{L}|{D}|_|@)
WS = ([\\000-\\s]|%.*)
Rules.
{D}+\\.{D}+((E|e)(\\+|\\-)?{D}+)? :
{token,{float,TokenLine,list_to_float(TokenChars)}}.
{D}+#{H}+ : base(TokenLine, TokenChars).
{D}+ : {token,{integer,TokenLine,list_to_integer(TokenChars)}}.
{L}{A}* : Atom = list_to_atom(TokenChars),
{token,case reserved_word(Atom) of
true -> {Atom,TokenLine};
false -> {atom,TokenLine,Atom}
end}.
'(\\\\\\^.|\\\\.|[^'])*' :
%% Strip quotes.
S = lists:sublist(TokenChars, 2, TokenLen - 2),
case catch list_to_atom(string_gen(S)) of
{'EXIT',_} -> {error,\"illegal atom \" ++ TokenChars};
Atom -> {token,{atom,TokenLine,Atom}}
end.
({U}|_){A}* : {token,{var,TokenLine,list_to_atom(TokenChars)}}.
\"(\\\\\\^.|\\\\.|[^\"])*\" :
%% Strip quotes.
S = lists:sublist(TokenChars, 2, TokenLen - 2),
{token,{string,TokenLine,string_gen(S)}}.
\\$(\\\\{O}{O}{O}|\\\\\\^.|\\\\.|.) :
{token,{char,TokenLine,cc_convert(TokenChars)}}.
-> : {token,{'->',TokenLine}}.
:- : {token,{':-',TokenLine}}.
\\|\\| : {token,{'||',TokenLine}}.
<- : {token,{'<-',TokenLine}}.
\\+\\+ : {token,{'++',TokenLine}}.
-- : {token,{'--',TokenLine}}.
=/= : {token,{'=/=',TokenLine}}.
== : {token,{'==',TokenLine}}.
=:= : {token,{'=:=',TokenLine}}.
/= : {token,{'/=',TokenLine}}.
>= : {token,{'>=',TokenLine}}.
=< : {token,{'=<',TokenLine}}.
<= : {token,{'<=',TokenLine}}.
<< : {token,{'<<',TokenLine}}.
>> : {token,{'>>',TokenLine}}.
:: : {token,{'::',TokenLine}}.
[]()[}{|!?/;:,.*+#<>=-] :
{token,{list_to_atom(TokenChars),TokenLine}}.
\\.{WS} : {end_token,{dot,TokenLine}}.
{WS}+ : skip_token.
Erlang code.
-export([reserved_word/1]).
%% reserved_word(Atom) -> Bool
%% return 'true' if Atom is an Erlang reserved word, else 'false'.
reserved_word('after') -> true;
reserved_word('begin') -> true;
reserved_word('case') -> true;
reserved_word('try') -> true;
reserved_word('cond') -> true;
reserved_word('catch') -> true;
reserved_word('andalso') -> true;
reserved_word('orelse') -> true;
reserved_word('end') -> true;
reserved_word('fun') -> true;
reserved_word('if') -> true;
reserved_word('let') -> true;
reserved_word('of') -> true;
reserved_word('query') -> true;
reserved_word('receive') -> true;
reserved_word('when') -> true;
reserved_word('bnot') -> true;
reserved_word('not') -> true;
reserved_word('div') -> true;
reserved_word('rem') -> true;
reserved_word('band') -> true;
reserved_word('and') -> true;
reserved_word('bor') -> true;
reserved_word('bxor') -> true;
reserved_word('bsl') -> true;
reserved_word('bsr') -> true;
reserved_word('or') -> true;
reserved_word('xor') -> true;
reserved_word('spec') -> true;
reserved_word(_) -> false.
base(L, Cs) ->
H = string:chr(Cs, $#),
case list_to_integer(string:substr(Cs, 1, H-1)) of
B when B > 16 -> {error,\"illegal base\"};
B ->
case base(string:substr(Cs, H+1), B, 0) of
error -> {error,\"illegal based number\"};
N -> {token,{integer,L,N}}
end
end.
base([C|Cs], Base, SoFar) when C >= $0, C =< $9, C < Base + $0 ->
Next = SoFar * Base + (C - $0),
base(Cs, Base, Next);
base([C|Cs], Base, SoFar) when C >= $a, C =< $f, C < Base + $a - 10 ->
Next = SoFar * Base + (C - $a + 10),
base(Cs, Base, Next);
base([C|Cs], Base, SoFar) when C >= $A, C =< $F, C < Base + $A - 10 ->
Next = SoFar * Base + (C - $A + 10),
base(Cs, Base, Next);
base([_|_], _, _) -> error; %Unknown character
base([], _, N) -> N.
cc_convert([$$,$\\\\|Cs]) ->
hd(string_escape(Cs));
cc_convert([$$,C]) -> C.
string_gen([$\\\\|Cs]) ->
string_escape(Cs);
string_gen([C|Cs]) ->
[C|string_gen(Cs)];
string_gen([]) -> [].
string_escape([O1,O2,O3|S]) when
O1 >= $0, O1 =< $7, O2 >= $0, O2 =< $7, O3 >= $0, O3 =< $7 ->
[(O1*8 + O2)*8 + O3 - 73*$0|string_gen(S)];
string_escape([$^,C|Cs]) ->
[C band 31|string_gen(Cs)];
string_escape([C|Cs]) when C >= $\\000, C =< $\\s ->
string_gen(Cs);
string_escape([C|Cs]) ->
[escape_char(C)|string_gen(Cs)].
escape_char($n) -> $\\n; %\\n = LF
escape_char($r) -> $\\r; %\\r = CR
escape_char($t) -> $\\t; %\\t = TAB
escape_char($v) -> $\\v; %\\v = VT
escape_char($b) -> $\\b; %\\b = BS
escape_char($f) -> $\\f; %\\f = FF
escape_char($e) -> $\\e; %\\e = ESC
escape_char($s) -> $\\s; %\\s = SPC
escape_char($d) -> $\\d; %\\d = DEL
escape_char(C) -> C.
">>,
Dir = ?privdir,
XrlFile = filename:join(Dir, "erlang_scan.xrl"),
?line ok = file:write_file(XrlFile, Xrl),
ErlFile = filename:join(Dir, "erlang_scan.erl"),
?line {ok, _} = leex:file(XrlFile, []),
?line {ok, _} = compile:file(ErlFile, [{outdir,Dir}]),
code:purge(erlang_scan),
AbsFile = filename:rootname(ErlFile, ".erl"),
code:load_abs(AbsFile, erlang_scan),
F = fun(Cont, Chars, Location) ->
erlang_scan:tokens(Cont, Chars, Location)
end,
F1 = fun(Cont, Chars, Location) ->
erlang_scan:token(Cont, Chars, Location)
end,
fun() ->
S = "ab cd. ",
{ok, Ts, 1} = scan_tokens_1(S, F, 1),
{ok, Ts, 1} = scan_token_1(S, F1, 1),
{ok, Ts, 1} = scan_tokens(S, F, 1),
{ok, Ts, 1} = erlang_scan:string(S, 1)
end(),
fun() ->
S = "'ab\n cd'. ",
{ok, Ts, 2} = scan_tokens_1(S, F, 1),
{ok, Ts, 2} = scan_token_1(S, F1, 1),
{ok, Ts, 2} = scan_tokens(S, F, 1),
{ok, Ts, 2} = erlang_scan:string(S, 1)
end(),
fun() ->
S = "99. ",
{ok, Ts, 1} = scan_tokens_1(S, F, 1),
{ok, Ts, 1} = scan_token_1(S, F1, 1),
{ok, Ts, 1} = scan_tokens(S, F, 1),
{ok, Ts, 1} = erlang_scan:string(S, 1)
end(),
{ok,[{integer,1,99},{dot,1}],1} = erlang_scan:string("99. "),
fun() ->
Atom = "'" ++ lists:duplicate(1000,$a) ++ "'",
S = Atom ++ ". ",
Reason = "illegal atom " ++ Atom,
Err = {error,{1,erlang_scan,{user,Reason}},1},
{done,Err,[]} = scan_tokens_1(S, F, 1),
{done,Err,[]} = scan_token_1(S, F1, 1),
{done,Err,[]} = scan_tokens(S, F, 1),
Err = erlang_scan:string(S, 1)
end(),
fun() ->
S = "\x{aaa}. ",
Err = {error,{1,erlang_scan,{illegal,[2730]}},1},
{done,Err,[]} = scan_tokens_1(S, F, 1),
{done,Err,[_]} = scan_token_1(S, F1, 1), % Note: Rest non-empty
{done,Err,[]} = scan_tokens(S, F, 1),
Err = erlang_scan:string(S, 1)
end(),
fun() ->
S = "\x{aaa} + 1. 34",
Err = {error,{1,erlang_scan,{illegal,[2730]}},1},
{done,Err,[]} = scan_tokens_1(S, F, 1),
{done,Err,[_]} = scan_token_1(S, F1, 1), % Note: Rest non-empty
{done,Err,"34"} = scan_tokens(S, F, 1),
Err = erlang_scan:string(S, 1)
end(),
fun() ->
S = "\x{aaa} \x{bbb}. 34",
Err = {error,{1,erlang_scan,{illegal,[2730]}},1},
{done,Err,[]} = scan_tokens_1(S, F, 1),
{done,Err,[_]} = scan_token_1(S, F1, 1), % Note: Rest non-empty
{done,Err,"34"} = scan_tokens(S, F, 1),
Err = erlang_scan:string(S, 1)
end(),
fun() ->
S = "\x{aaa} 18#34. 34",
Err = {error,{1,erlang_scan,{illegal,[2730]}},1},
{done,Err,[]} = scan_tokens_1(S, F, 1),
{done,Err,[_]} = scan_token_1(S, F1, 1), % Note: Rest non-empty
{done,Err,"34"} = scan_tokens(S, F, 1),
Err = erlang_scan:string(S, 1)
end(),
fun() ->
S = "\x{aaa}"++eof,
Err = {error,{1,erlang_scan,{illegal,[2730]}},1},
{done,Err,eof} = scan_tokens_1(S, F, 1),
{done,Err,[_]} = scan_token_1(S, F1, 1), % Note: Rest non-empty
{done,Err,eof} = scan_tokens(S, F, 1),
Err = erlang_scan:string(S, 1)
end(),
ok.
scan_tokens(String, Fun, Location) ->
scan_tokens(String, Fun, Location, []).
scan_tokens(String, Fun, Location, Rs) ->
case Fun([], String, Location) of
{done, {error,_,_}, _} = Error ->
Error;
{done, {ok,Ts,End}, ""} ->
{ok, lists:append(lists:reverse([Ts|Rs])), End};
{done, {ok,Ts,End}, Rest} ->
scan_tokens(Rest, Fun, End, [Ts|Rs])
end.
scan_tokens_1(String, Fun, Location) ->
scan_tokens_1({more, []}, String, Fun, Location, []).
scan_tokens_1({done, {error, _, _}, _}=Error, _Cs, _Fun, _Location, _Rs) ->
Error;
scan_tokens_1({done, {ok,Ts,End}, ""}, "", _Fun, _Location, Rs) ->
{ok,lists:append(lists:reverse([Ts|Rs])),End};
scan_tokens_1({done, {ok,Ts,End}, Rest}, Cs, Fun, _Location, Rs) ->
scan_tokens_1({more,[]}, Rest++Cs, Fun, End, [Ts|Rs]);
scan_tokens_1({more, Cont}, [C | Cs], Fun, Loc, Rs) ->
R = Fun(Cont, [C], Loc),
scan_tokens_1(R, Cs, Fun, Loc, Rs);
scan_tokens_1({more, Cont}, eof, Fun, Loc, Rs) ->
R = Fun(Cont, eof, Loc),
scan_tokens_1(R, eof, Fun, Loc, Rs).
scan_token_1(String, Fun, Location) ->
scan_token_1({more, []}, String, Fun, Location, []).
scan_token_1({done, {error, _, _}, _}=Error, _Cs, _Fun, _Location, _Rs) ->
Error;
scan_token_1({done, {ok,Ts,End}, ""}, "", _Fun, _Location, Rs) ->
{ok,lists:reverse([Ts|Rs]),End};
scan_token_1({done, {ok,Ts,End}, Rest}, Cs, Fun, _Location, Rs) ->
scan_token_1({more,[]}, Rest++Cs, Fun, End, [Ts|Rs]);
scan_token_1({more, Cont}, [C | Cs], Fun, Loc, Rs) ->
R = Fun(Cont, [C], Loc),
scan_token_1(R, Cs, Fun, Loc, Rs).
%% End of ex2
not_yet(doc) ->
"Not yet implemented.";
not_yet(suite) -> [];
not_yet(Config) when is_list(Config) ->
Dir = ?privdir,
Filename = filename:join(Dir, "file.xrl"),
Ret = [return, {report, true}],
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"Rules.\n"
"$ : .\n"
"Erlang code.\n">>),
?line {error,[{_,[{3,leex,{regexp,_}}]}],[]} =
leex:file(Filename, Ret),
?line ok = file:write_file(Filename,
<<"Definitions.\n"
"Rules.\n"
"^ : .\n"
"Erlang code.\n">>),
?line {error,[{_,[{3,leex,{regexp,_}}]}],[]} =
leex:file(Filename, Ret),
ok.
unwritable(Fname) ->
{ok, Info} = file:read_file_info(Fname),
Mode = Info#file_info.mode - 8#00200,
ok = file:write_file_info(Fname, Info#file_info{mode = Mode}).
writable(Fname) ->
{ok, Info} = file:read_file_info(Fname),
Mode = Info#file_info.mode bor 8#00200,
ok = file:write_file_info(Fname, Info#file_info{mode = Mode}).
run(Config, Tests) ->
F = fun({N,P,Pre,E}) ->
case catch run_test(Config, P, Pre) of
E ->
ok;
Bad ->
?t:format("~nTest ~p failed. Expected~n ~p~n"
"but got~n ~p~n", [N, E, Bad]),
fail()
end
end,
lists:foreach(F, Tests).
run_test(Config, Def, Pre) ->
%% io:format("testing ~s~n", [binary_to_list(Def)]),
DefFile = 'leex_test.xrl',
Filename = 'leex_test.erl',
DataDir = ?privdir,
XrlFile = filename:join(DataDir, DefFile),
ErlFile = filename:join(DataDir, Filename),
Opts = [return, warn_unused_vars,{outdir,DataDir}],
ok = file:write_file(XrlFile, Def),
LOpts = [return, {report, false} |
case Pre of
default ->
[];
_ ->
[{includefile,Pre}]
end],
XOpts = [verbose, dfa_graph], % just to get some code coverage...
LRet = leex:file(XrlFile, XOpts ++ LOpts),
case LRet of
{ok, _Outfile, _LWs} ->
CRet = compile:file(ErlFile, Opts),
case CRet of
{ok, _M, _Ws} ->
AbsFile = filename:rootname(ErlFile, ".erl"),
Mod = leex_test,
code:purge(Mod),
code:load_abs(AbsFile, Mod),
Mod:t();
%% warnings(ErlFile, Ws);
{error, [{ErlFile,Es}], []} -> {error, Es, []};
{error, [{ErlFile,Es}], [{ErlFile,Ws}]} -> {error, Es, Ws};
Error -> Error
end;
{error, [{XrlFile,LEs}], []} -> {error, LEs, []};
{error, [{XrlFile,LEs}], [{XrlFile,LWs}]} -> {error, LEs, LWs};
LError -> LError
end.
extract(File, {error, Es, Ws}) ->
{errors, extract(File, Es), extract(File, Ws)};
extract(File, Ts) ->
lists:append([T || {F, T} <- Ts, F =:= File]).
fail() ->
?t:fail().
