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[PRISM] Check length of line for shebang

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This commit is contained in:
Kevin Newton 2024-08-28 09:33:01 -04:00
parent 91c6c2bdb5
commit 4c5a1dad0a
Notes: git 2024-08-28 14:51:06 +00:00 
Merged: https://github.com/ruby/ruby/pull/11475
1 changed files with 3 additions and 3 deletions
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prism/prism.c
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@ -21961,10 +21961,10 @@ pm_parser_init(pm_parser_t *parser, const uint8_t *source, size_t size, const pm
// If the first two bytes of the source are a shebang, then we'll indicate // If the first two bytes of the source are a shebang, then we'll indicate
// that the encoding comment is at the end of the shebang. // that the encoding comment is at the end of the shebang.
if (peek(parser) == '#' && peek_offset(parser, 1) == '!') {
const uint8_t *newline = next_newline(parser->start, parser->end - parser->start); const uint8_t *newline = next_newline(parser->start, parser->end - parser->start);
size_t length = (size_t) ((newline != NULL ? newline : parser->end) - parser->start); size_t length = (size_t) ((newline != NULL ? newline : parser->end) - parser->start);
if (length > 2 && parser->current.end[0] == '#' && parser->current.end[1] == '!') {
const char *engine; const char *engine;
if ((engine = pm_strnstr((const char *) parser->start, "ruby", length)) != NULL) { if ((engine = pm_strnstr((const char *) parser->start, "ruby", length)) != NULL) {
if (newline != NULL) { if (newline != NULL) {