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parse.y: newline in heredoc identifier

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* parse.y (parser_heredoc_identifier): warn newline in here
  document identifier.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-12-15 12:58:59 +00:00
parent def2a2cb3f
commit 2d6538a7c8
2 changed files with 11 additions and 0 deletions
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5
parse.y
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@ -6406,6 +6406,7 @@ parser_heredoc_identifier(struct parser_params *parser)
int c = nextc(), term, func = 0;
int token = tSTRING_BEG;
long len;
int newline = 0;
if (c == '-') {
c = nextc();
@ -6432,11 +6433,15 @@ parser_heredoc_identifier(struct parser_params *parser)
term = c;
while ((c = nextc()) != -1 && c != term) {
if (tokadd_mbchar(c) == -1) return 0;
if (c == '\n') newline = 1;
}
if (c == -1) {
compile_error(PARSER_ARG "unterminated here document identifier");
return 0;
}
if (newline) {
rb_warn0("here document identifier contains newline");
}
break;
default:

6
test/ruby/test_syntax.rb
View file

@ -745,6 +745,12 @@ eom
assert_syntax_error("puts <<""EOS\n""ng\n""EOS\r""NO\n", /can't find string "EOS" anywhere before EOF/)
end
def test_heredoc_newline
assert_warn(/contains newline/) do
eval("<<\"EOS\n\"\nEOS\n")
end
end
def test__END___cr
assert_syntax_error("__END__\r<<<<<\n", /unexpected <</)
end