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merge revision(s) 110f242ef9: [Backport #17861]

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Also `\U` after control/meta is invalid [Bug #17861]

	As well as `\u`, `\U` should be invalid there too.
	And highlight including `u`/`U` not only the backslash before it.
	---
	 parse.y                 | 12 ++++++++++--
	 test/ruby/test_parse.rb | 15 +++++++++++++++
	 2 files changed, 25 insertions(+), 2 deletions(-)
This commit is contained in:
nagachika 2021-05-22 16:47:24 +09:00
parent 5e21726cda
commit af9de56c6f
3 changed files with 26 additions and 3 deletions
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12
parse.y
View file

@ -6763,7 +6763,11 @@ read_escape(struct parser_params *p, int flags, rb_encoding **encp)
goto eof;
}
if ((c = nextc(p)) == '\\') {
if (peek(p, 'u')) goto eof;
switch (peekc(p)) {
case 'u': case 'U':
nextc(p);
goto eof;
}
return read_escape(p, flags|ESCAPE_META, encp) | 0x80;
}
else if (c == -1 || !ISASCII(c)) goto eof;
@ -6788,7 +6792,11 @@ read_escape(struct parser_params *p, int flags, rb_encoding **encp)
case 'c':
if (flags & ESCAPE_CONTROL) goto eof;
if ((c = nextc(p))== '\\') {
if (peek(p, 'u')) goto eof;
switch (peekc(p)) {
case 'u': case 'U':
nextc(p);
goto eof;
}
c = read_escape(p, flags|ESCAPE_CONTROL, encp);
}
else if (c == '?')

15
test/ruby/test_parse.rb
View file

@ -562,6 +562,21 @@ class TestParse < Test::Unit::TestCase
assert_syntax_error("\"\\M-\x01\"", 'Invalid escape character syntax')
assert_syntax_error("\"\\M-\\C-\x01\"", 'Invalid escape character syntax')
assert_syntax_error("\"\\C-\\M-\x01\"", 'Invalid escape character syntax')
e = assert_syntax_error('"\c\u0000"', 'Invalid escape character syntax')
assert_equal(' ^~~~'"\n", e.message.lines.last)
e = assert_syntax_error('"\c\U0000"', 'Invalid escape character syntax')
assert_equal(' ^~~~'"\n", e.message.lines.last)
e = assert_syntax_error('"\C-\u0000"', 'Invalid escape character syntax')
assert_equal(' ^~~~~'"\n", e.message.lines.last)
e = assert_syntax_error('"\C-\U0000"', 'Invalid escape character syntax')
assert_equal(' ^~~~~'"\n", e.message.lines.last)
e = assert_syntax_error('"\M-\u0000"', 'Invalid escape character syntax')
assert_equal(' ^~~~~'"\n", e.message.lines.last)
e = assert_syntax_error('"\M-\U0000"', 'Invalid escape character syntax')
assert_equal(' ^~~~~'"\n", e.message.lines.last)
end
def test_question

2
version.h
View file

@ -12,7 +12,7 @@
# define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
#define RUBY_VERSION_TEENY 2
#define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
#define RUBY_PATCHLEVEL 80
#define RUBY_PATCHLEVEL 81
#define RUBY_RELEASE_YEAR 2021
#define RUBY_RELEASE_MONTH 5