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t/re/regexp_unicode_prop.t: Add tests for run-time
[perl5.git] / invlist_inline.h
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b992490d 1/* invlist_inline.h
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2 *
3 * Copyright (C) 2012 by Larry Wall and others
4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
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7 */
8
f1bcae08 9#if defined(PERL_IN_UTF8_C) || defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) || defined(PERL_IN_TOKE_C)
81e983c1 10
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11/* An element is in an inversion list iff its index is even numbered: 0, 2, 4,
12 * etc */
13#define ELEMENT_RANGE_MATCHES_INVLIST(i) (! ((i) & 1))
14#define PREV_RANGE_MATCHES_INVLIST(i) (! ELEMENT_RANGE_MATCHES_INVLIST(i))
15
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16/* This converts to/from our UVs to what the SV code is expecting: bytes. */
17#define TO_INTERNAL_SIZE(x) ((x) * sizeof(UV))
18#define FROM_INTERNAL_SIZE(x) ((x)/ sizeof(UV))
19
20PERL_STATIC_INLINE bool*
dc3bf405 21S_get_invlist_offset_addr(SV* invlist)
9e7f4f43 22{
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23 /* Return the address of the field that says whether the inversion list is
24 * offset (it contains 1) or not (contains 0) */
4c60406d 25 PERL_ARGS_ASSERT_GET_INVLIST_OFFSET_ADDR;
9e7f4f43 26
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27 assert(SvTYPE(invlist) == SVt_INVLIST);
28
4c60406d 29 return &(((XINVLIST*) SvANY(invlist))->is_offset);
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30}
31
32PERL_STATIC_INLINE UV
dc3bf405 33S__invlist_len(SV* const invlist)
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34{
35 /* Returns the current number of elements stored in the inversion list's
36 * array */
37
38 PERL_ARGS_ASSERT__INVLIST_LEN;
39
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40 assert(SvTYPE(invlist) == SVt_INVLIST);
41
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42 return (SvCUR(invlist) == 0)
43 ? 0
44 : FROM_INTERNAL_SIZE(SvCUR(invlist)) - *get_invlist_offset_addr(invlist);
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45}
46
47PERL_STATIC_INLINE bool
dc3bf405 48S__invlist_contains_cp(SV* const invlist, const UV cp)
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49{
50 /* Does <invlist> contain code point <cp> as part of the set? */
51
52 IV index = _invlist_search(invlist, cp);
53
54 PERL_ARGS_ASSERT__INVLIST_CONTAINS_CP;
55
56 return index >= 0 && ELEMENT_RANGE_MATCHES_INVLIST(index);
57}
58
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59PERL_STATIC_INLINE UV*
60S_invlist_array(SV* const invlist)
61{
62 /* Returns the pointer to the inversion list's array. Every time the
63 * length changes, this needs to be called in case malloc or realloc moved
64 * it */
65
66 PERL_ARGS_ASSERT_INVLIST_ARRAY;
67
68 /* Must not be empty. If these fail, you probably didn't check for <len>
69 * being non-zero before trying to get the array */
70 assert(_invlist_len(invlist));
71
72 /* The very first element always contains zero, The array begins either
73 * there, or if the inversion list is offset, at the element after it.
74 * The offset header field determines which; it contains 0 or 1 to indicate
75 * how much additionally to add */
76 assert(0 == *(SvPVX(invlist)));
77 return ((UV *) SvPVX(invlist) + *get_invlist_offset_addr(invlist));
78}
79
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80# if defined(PERL_IN_UTF8_C) || defined(PERL_IN_REGEXEC_C)
81
82/* These symbols are only needed later in regcomp.c */
83# undef TO_INTERNAL_SIZE
84# undef FROM_INTERNAL_SIZE
85# endif
86
81e983c1 87#endif