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* lex.c (java_read_unicode): Only accept leading `u's.

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From-SVN: r40702
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Tom Tromey 2001-03-21 18:50:02 +00:00 • committed by Tom Tromey
parent 7e0c895f0e
commit 4aed89380c
2 changed files with 14 additions and 5 deletions
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4
gcc/java/ChangeLog
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@ -1,3 +1,7 @@
2001-03-20 Tom Tromey <tromey@redhat.com>
* lex.c (java_read_unicode): Only accept leading `u's.
2001-03-20 Tom Tromey <tromey@redhat.com>
* jcf-parse.c (read_class): Initialize `class'.

15
gcc/java/lex.c
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@ -532,6 +532,16 @@ java_read_unicode (lex, unicode_escape_p)
{
unicode_t unicode = 0;
int shift = 12;
/* Recognize any number of `u's in \u. */
while ((c = java_read_char (lex)) == 'u')
;
/* Unget the most recent character as it is not a `u'. */
if (c == UEOF)
return UEOF;
lex->unget_value = c;
/* Next should be 4 hex digits, otherwise it's an error.
The hex value is converted into the unicode, pushed into
the Unicode stream. */
@ -543,11 +553,6 @@ java_read_unicode (lex, unicode_escape_p)
unicode |= (unicode_t)((c-'0') << shift);
else if ((c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'))
unicode |= (unicode_t)((10+(c | 0x20)-'a') << shift);
else if (c == 'u')
{
/* Recognize any number of u in \u. */
shift += 4;
}
else
java_lex_error ("Non hex digit in Unicode escape sequence", 0);
}