diff options
Diffstat (limited to 'parse.y')
| -rw-r--r-- | parse.y | 21 |
1 files changed, 16 insertions, 5 deletions
@@ -5757,11 +5757,15 @@ parser_tok_hex(struct parser_params *parser, size_t *numlen) #define tokcopy(n) memcpy(tokspace(n), lex_p - (n), (n)) -static void +static int parser_tokadd_codepoint(struct parser_params *parser, rb_encoding **encp, int string_literal, int regexp_literal, int codepoint, int numlen) { + if ((codepoint & 0xfffff800) == 0xd800) { + yyerror("invalid Unicode codepoint"); + return FALSE; + } lex_p += numlen; if (regexp_literal) { tokcopy(numlen); @@ -5773,6 +5777,7 @@ parser_tokadd_codepoint(struct parser_params *parser, rb_encoding **encp, else if (string_literal) { tokadd(codepoint); } + return TRUE; } /* return value is for ?\u3042 */ @@ -5806,8 +5811,11 @@ parser_tokadd_utf8(struct parser_params *parser, rb_encoding **encp, yyerror("invalid Unicode codepoint (too large)"); return 0; } - parser_tokadd_codepoint(parser, encp,string_literal, regexp_literal, - codepoint, (int)numlen); + if (!parser_tokadd_codepoint(parser, encp, + string_literal, regexp_literal, + codepoint, (int)numlen)) { + return 0; + } if (ISSPACE(c = nextc())) last = c; } while (string_literal && c != close_brace); @@ -5824,8 +5832,11 @@ parser_tokadd_utf8(struct parser_params *parser, rb_encoding **encp, yyerror("invalid Unicode escape"); return 0; } - parser_tokadd_codepoint(parser, encp, string_literal, regexp_literal, - codepoint, 4); + if (!parser_tokadd_codepoint(parser, encp, + string_literal, regexp_literal, + codepoint, 4)) { + return 0; + } } return codepoint; |