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[ruby/prism] Special error for too short unicode errors

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https://github.com/ruby/prism/commit/9f1f7d08bd
This commit is contained in:
Kevin Newton 2024-08-15 12:24:49 -04:00 committed by git
parent 8312c5be74
commit cbf508da58
4 changed files with 9 additions and 1 deletions
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1
prism/config.yml
View File

@ -83,6 +83,7 @@ errors:
- ESCAPE_INVALID_UNICODE_CM_FLAGS
- ESCAPE_INVALID_UNICODE_LITERAL
- ESCAPE_INVALID_UNICODE_LONG
- ESCAPE_INVALID_UNICODE_SHORT
- ESCAPE_INVALID_UNICODE_TERM
- EXPECT_ARGUMENT
- EXPECT_EOL_AFTER_STATEMENT

5
prism/prism.c
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@ -9771,7 +9771,10 @@ escape_read(pm_parser_t *parser, pm_buffer_t *buffer, pm_buffer_t *regular_expre
} else {
size_t length = pm_strspn_hexadecimal_digit(parser->current.end, MIN(parser->end - parser->current.end, 4));
if (length == 4) {
if (length == 0) {
const uint8_t *start = parser->current.end - 2;
PM_PARSER_ERR_FORMAT(parser, start, parser->current.end, PM_ERR_ESCAPE_INVALID_UNICODE_SHORT, 2, start);
} else if (length == 4) {
uint32_t value = escape_unicode(parser, parser->current.end, 4);
if (flags & PM_ESCAPE_FLAG_REGEXP) {

1
prism/templates/src/diagnostic.c.erb
View File

@ -167,6 +167,7 @@ static const pm_diagnostic_data_t diagnostic_messages[PM_DIAGNOSTIC_ID_MAX] = {
[PM_ERR_ESCAPE_INVALID_UNICODE_CM_FLAGS] = { "invalid Unicode escape sequence; Unicode cannot be combined with control or meta flags", PM_ERROR_LEVEL_SYNTAX },
[PM_ERR_ESCAPE_INVALID_UNICODE_LITERAL] = { "invalid Unicode escape sequence; Multiple codepoints at single character literal are disallowed", PM_ERROR_LEVEL_SYNTAX },
[PM_ERR_ESCAPE_INVALID_UNICODE_LONG] = { "invalid Unicode escape sequence; maximum length is 6 digits", PM_ERROR_LEVEL_SYNTAX },
[PM_ERR_ESCAPE_INVALID_UNICODE_SHORT] = { "too short escape sequence: %.*s", PM_ERROR_LEVEL_SYNTAX },
[PM_ERR_ESCAPE_INVALID_UNICODE_TERM] = { "unterminated Unicode escape", PM_ERROR_LEVEL_SYNTAX },
[PM_ERR_EXPECT_ARGUMENT] = { "expected an argument", PM_ERROR_LEVEL_SYNTAX },
[PM_ERR_EXPECT_EOL_AFTER_STATEMENT] = { "unexpected %s, expecting end-of-input", PM_ERROR_LEVEL_SYNTAX },

3
test/prism/errors/regexp_unicode_too_short.txt Normal file
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@ -0,0 +1,3 @@
/\u/
^~ too short escape sequence: \u