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Fixed a bug in character set matching when JIT is enabled.

This commit is contained in:
Zoltán Herczeg 2020-09-19 03:49:32 +00:00
parent f8cbb1f58d
commit 3bdc76e4f3
3 changed files with 33 additions and 9 deletions
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3
ChangeLog
View File

@ -73,6 +73,9 @@ first valid fragment of the subject, possibly causing incorrect "no match"
returns on subsequent fragments. For example, the pattern /A/ failed to match returns on subsequent fragments. For example, the pattern /A/ failed to match
the subject \xe5A. Fixes Bugzilla #2642. the subject \xe5A. Fixes Bugzilla #2642.
14. Fixed a bug in character set matching when JIT is enabled and both unicode
scripts and unicode classes are present at the same time.
Version 10.35 09-May-2020 Version 10.35 09-May-2020
--------------------------- ---------------------------

38
src/pcre2_jit_compile.c
View File

@ -7672,25 +7672,43 @@ if (needstype || needsscript)
} }
cc = ccbegin; cc = ccbegin;
if (needstype)
{
/* TMP2 has already been shifted by 2 */
if (!needschar)
{
OP2(SLJIT_ADD, TMP1, 0, TMP2, 0, TMP2, 0);
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
}
else
{
OP2(SLJIT_ADD, TMP1, 0, TMP2, 0, TMP2, 0);
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0);
OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0);
OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
typereg = RETURN_ADDR;
}
}
else if (needschar)
OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0);
} }
else if (needstype)
if (needschar)
OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0);
if (needstype)
{ {
OP2(SLJIT_SHL, TMP1, 0, TMP2, 0, SLJIT_IMM, 3);
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 2);
if (!needschar) if (!needschar)
{ {
OP2(SLJIT_SHL, TMP1, 0, TMP2, 0, SLJIT_IMM, 3);
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 2);
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype)); OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
} }
else else
{ {
OP2(SLJIT_SHL, TMP1, 0, TMP2, 0, SLJIT_IMM, 2);
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 3);
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0); OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0);
OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0); OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0);
@ -7698,6 +7716,8 @@ if (needstype || needsscript)
typereg = RETURN_ADDR; typereg = RETURN_ADDR;
} }
} }
else if (needschar)
OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0);
} }
#endif /* SUPPORT_UNICODE */ #endif /* SUPPORT_UNICODE */

1
src/pcre2_jit_test.c
View File

@ -409,6 +409,7 @@ static struct regression_test_case regression_test_cases[] = {
{ MUP, A, 0, 0 | F_PROPERTY, "[\xc3\xa2-\xc3\xa6\xc3\x81-\xc3\x84\xe2\x80\xa8-\xe2\x80\xa9\xe6\x92\xad\\p{Zs}]{2,}", "\xe2\x80\xa7\xe2\x80\xa9\xe6\x92\xad \xe6\x92\xae" }, { MUP, A, 0, 0 | F_PROPERTY, "[\xc3\xa2-\xc3\xa6\xc3\x81-\xc3\x84\xe2\x80\xa8-\xe2\x80\xa9\xe6\x92\xad\\p{Zs}]{2,}", "\xe2\x80\xa7\xe2\x80\xa9\xe6\x92\xad \xe6\x92\xae" },
{ MUP, A, 0, 0 | F_PROPERTY, "[\\P{L&}]{2}[^\xc2\x85-\xc2\x89\\p{Ll}\\p{Lu}]{2}", "\xc3\xa9\xe6\x92\xad.a\xe6\x92\xad|\xc2\x8a#" }, { MUP, A, 0, 0 | F_PROPERTY, "[\\P{L&}]{2}[^\xc2\x85-\xc2\x89\\p{Ll}\\p{Lu}]{2}", "\xc3\xa9\xe6\x92\xad.a\xe6\x92\xad|\xc2\x8a#" },
{ PCRE2_UCP, 0, 0, 0 | F_PROPERTY, "[a-b\\s]{2,5}[^a]", "AB baaa" }, { PCRE2_UCP, 0, 0, 0 | F_PROPERTY, "[a-b\\s]{2,5}[^a]", "AB baaa" },
{ MUP, 0, 0, 0 | F_NOMATCH, "[^\\p{Hangul}\\p{Z}]", " " },
/* Possible empty brackets. */ /* Possible empty brackets. */
{ MU, A, 0, 0, "(?:|ab||bc|a)+d", "abcxabcabd" }, { MU, A, 0, 0, "(?:|ab||bc|a)+d", "abcxabcabd" },