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parse.y: warn CR

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* parse.y (parser_nextc): warn carriage return in middle of line.
  [ruby-core:56240] [Feature #8699]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42691 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-08-26 07:25:08 +00:00
parent 1a3bcf103c
commit a6a85a0cb7
3 changed files with 24 additions and 3 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Mon Aug 26 16:24:58 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* parse.y (parser_nextc): warn carriage return in middle of line.
[ruby-core:56240] [Feature #8699]
Mon Aug 26 15:27:39 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* lib/timeout.rb (Timeout#timeout): should not be caught by rescue

15
parse.y
View file

@ -270,6 +270,8 @@ struct parser_params {
int parser_yydebug;
int last_cr_line;
#ifndef RIPPER
/* Ruby core only */
NODE *parser_eval_tree_begin;
@ -5329,6 +5331,7 @@ yycompile0(VALUE arg)
ruby_coverage = coverage(ruby_sourcefile_string, ruby_sourceline);
}
}
parser->last_cr_line = ruby_sourceline - 1;
parser_prepare(parser);
deferred_nodes = 0;
@ -5611,9 +5614,15 @@ parser_nextc(struct parser_params *parser)
}
}
c = (unsigned char)*lex_p++;
if (c == '\r' && peek('\n')) {
lex_p++;
c = '\n';
if (c == '\r') {
if (peek('\n')) {
lex_p++;
c = '\n';
}
else if (ruby_sourceline > parser->last_cr_line) {
parser->last_cr_line = ruby_sourceline;
rb_compile_warn(ruby_sourcefile, ruby_sourceline, "encountered \\r in mddile of line, treat as a mere space");
}
}
return c;

7
test/ruby/test_syntax.rb
View file

@ -385,6 +385,13 @@ eom
assert_syntax_error("__END__\r<<<<<\n", /unexpected <</)
end
def test_warning_for_cr
feature8699 = '[ruby-core:56240] [Feature #8699]'
assert_warning(/encountered \\r/, feature8699) do
eval("\r""__id__\r")
end
end
private
def not_label(x) @result = x; @not_label ||= nil end