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| author | Tom Tromey <tromey@redhat.com> | 2001-03-21 18:50:02 +0000 |
|---|---|---|
| committer | Tom Tromey <tromey@gcc.gnu.org> | 2001-03-21 18:50:02 +0000 |
| commit | 4aed89380ce9687f123b6b171d54adfaf6f878f3 (patch) | |
| tree | 93263a53fe4ca98dda2a94bd13720ab957131bbc /gcc/java/lex.c | |
| parent | 7e0c895f0e83b1410470d48751c2ed400cdba5a2 (diff) | |
| download | gcc-4aed89380ce9687f123b6b171d54adfaf6f878f3.zip gcc-4aed89380ce9687f123b6b171d54adfaf6f878f3.tar.gz gcc-4aed89380ce9687f123b6b171d54adfaf6f878f3.tar.bz2 | |
* lex.c (java_read_unicode): Only accept leading `u's.
From-SVN: r40702
Diffstat (limited to 'gcc/java/lex.c')
| -rw-r--r-- | gcc/java/lex.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/gcc/java/lex.c b/gcc/java/lex.c index 3b43fa0..4f9a731 100644 --- a/gcc/java/lex.c +++ b/gcc/java/lex.c @@ -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); } |