blob: 1875a0506e91d0730949f3615e39a06a917ef2ff (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/* inline_invlist.c
*
* Copyright (C) 2012 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
#if defined(PERL_IN_UTF8_C) || defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
/* An element is in an inversion list iff its index is even numbered: 0, 2, 4,
* etc */
#define ELEMENT_RANGE_MATCHES_INVLIST(i) (! ((i) & 1))
#define PREV_RANGE_MATCHES_INVLIST(i) (! ELEMENT_RANGE_MATCHES_INVLIST(i))
/* This converts to/from our UVs to what the SV code is expecting: bytes. */
#define TO_INTERNAL_SIZE(x) ((x) * sizeof(UV))
#define FROM_INTERNAL_SIZE(x) ((x)/ sizeof(UV))
PERL_STATIC_INLINE bool*
S_get_invlist_offset_addr(SV* invlist)
{
/* Return the address of the field that says whether the inversion list is
* offset (it contains 1) or not (contains 0) */
PERL_ARGS_ASSERT_GET_INVLIST_OFFSET_ADDR;
assert(SvTYPE(invlist) == SVt_INVLIST);
return &(((XINVLIST*) SvANY(invlist))->is_offset);
}
PERL_STATIC_INLINE UV
S__invlist_len(SV* const invlist)
{
/* Returns the current number of elements stored in the inversion list's
* array */
PERL_ARGS_ASSERT__INVLIST_LEN;
assert(SvTYPE(invlist) == SVt_INVLIST);
return (SvCUR(invlist) == 0)
? 0
: FROM_INTERNAL_SIZE(SvCUR(invlist)) - *get_invlist_offset_addr(invlist);
}
PERL_STATIC_INLINE bool
S__invlist_contains_cp(SV* const invlist, const UV cp)
{
/* Does <invlist> contain code point <cp> as part of the set? */
IV index = _invlist_search(invlist, cp);
PERL_ARGS_ASSERT__INVLIST_CONTAINS_CP;
return index >= 0 && ELEMENT_RANGE_MATCHES_INVLIST(index);
}
# if defined(PERL_IN_UTF8_C) || defined(PERL_IN_REGEXEC_C)
/* These symbols are only needed later in regcomp.c */
# undef TO_INTERNAL_SIZE
# undef FROM_INTERNAL_SIZE
# endif
#endif
|
