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parse.y: zero codepoints

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* parse.y (parser_tokadd_utf8): relax restriction to allow zero or
  more codepoints.  fixup r59417.

  https://github.com/ruby/ruby/commit/7e8b910#commitcomment-25602670

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60766 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-11-14 15:37:48 +00:00
parent 19ae98d5ce
commit 50702d16ab
2 changed files with 8 additions and 2 deletions
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4
parse.y
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@ -5999,7 +5999,7 @@ parser_tokadd_utf8(struct parser_params *parser, rb_encoding **encp,
int c, last = nextc();
if (lex_p >= lex_pend) goto unterminated;
while (ISSPACE(c = *lex_p) && ++lex_p < lex_pend);
do {
while (c != close_brace) {
if (regexp_literal) tokadd(last);
if (!parser_tokadd_codepoint(parser, encp, regexp_literal, TRUE)) {
break;
@ -6008,7 +6008,7 @@ parser_tokadd_utf8(struct parser_params *parser, rb_encoding **encp,
if (++lex_p >= lex_pend) goto unterminated;
last = c;
}
} while (c != close_brace);
}
if (c != close_brace) {
unterminated:

6
test/ruby/test_parse.rb
View file

@ -517,6 +517,8 @@ class TestParse < Test::Unit::TestCase
assert_syntax_error(src, /:#{__LINE__}: unterminated/o)
assert_syntax_error('"\u{100000000}"', /invalid Unicode escape/)
assert_equal("", eval('"\u{}"'))
assert_equal("", eval('"\u{ }"'))
assert_equal("\x81", eval('"\C-\M-a"'))
assert_equal("\177", eval('"\c?"'))
@ -555,6 +557,10 @@ class TestParse < Test::Unit::TestCase
assert_nothing_raised(SyntaxError, bug) do
assert_equal(sym, eval(':"foo\u{0}bar"'))
end
assert_nothing_raised(SyntaxError) do
assert_equal(:foobar, eval(':"foo\u{}bar"'))
assert_equal(:foobar, eval(':"foo\u{ }bar"'))
end
end
def test_parse_string