xref: /PHP-8.1/ext/pcre/pcre2lib/config.h (revision d50b076f)
1 
2 #include <php_compat.h>
3 
4 #ifdef PHP_WIN32
5 # include <config.w32.h>
6 #else
7 # include <php_config.h>
8 #endif
9 
10 #define SUPPORT_UNICODE 1
11 #define SUPPORT_PCRE2_8 1
12 
13 #if defined(__GNUC__) && __GNUC__ >= 4
14 # ifdef __cplusplus
15 #  define PCRE2_EXP_DECL		extern "C" __attribute__ ((visibility("default")))
16 # else
17 #  define PCRE2_EXP_DECL		extern __attribute__ ((visibility("default")))
18 # endif
19 # define PCRE2_EXP_DEFN		__attribute__ ((visibility("default")))
20 #endif
21 
22 /* Define to any value for valgrind support to find invalid memory reads. */
23 #ifdef HAVE_PCRE_VALGRIND_SUPPORT
24 #define SUPPORT_VALGRIND 1
25 #endif
26 
27 /* Define to any value to enable support for Just-In-Time compiling. */
28 #ifdef HAVE_PCRE_JIT_SUPPORT
29 #define SUPPORT_JIT
30 #endif
31 
32 /* This limits the amount of memory that pcre2_match() may use while matching
33    a pattern. The value is in kilobytes. */
34 #ifndef HEAP_LIMIT
35 #define HEAP_LIMIT 20000000
36 #endif
37 
38 /* The value of PARENS_NEST_LIMIT specifies the maximum depth of nested
39    parentheses (of any kind) in a pattern. This limits the amount of system
40    stack that is used while compiling a pattern. */
41 #ifndef PARENS_NEST_LIMIT
42 #define PARENS_NEST_LIMIT 250
43 #endif
44 
45 /* The value of MATCH_LIMIT determines the default number of times the
46    pcre2_match() function can record a backtrack position during a single
47    matching attempt. There is a runtime interface for setting a different
48    limit. The limit exists in order to catch runaway regular expressions that
49    take for ever to determine that they do not match. The default is set very
50    large so that it does not accidentally catch legitimate cases. */
51 #ifndef MATCH_LIMIT
52 #define MATCH_LIMIT 10000000
53 #endif
54 
55 /* The above limit applies to all backtracks, whether or not they are nested.
56    In some environments it is desirable to limit the nesting of backtracking
57    (that is, the depth of tree that is searched) more strictly, in order to
58    restrict the maximum amount of heap memory that is used. The value of
59    MATCH_LIMIT_DEPTH provides this facility. To have any useful effect, it
60    must be less than the value of MATCH_LIMIT. The default is to use the same
61    value as MATCH_LIMIT. There is a runtime method for setting a different
62    limit. */
63 #ifndef MATCH_LIMIT_DEPTH
64 #define MATCH_LIMIT_DEPTH MATCH_LIMIT
65 #endif
66 
67 /* This limit is parameterized just in case anybody ever wants to change it.
68    Care must be taken if it is increased, because it guards against integer
69    overflow caused by enormously large patterns. */
70 #ifndef MAX_NAME_COUNT
71 #define MAX_NAME_COUNT 10000
72 #endif
73 
74 /* This limit is parameterized just in case anybody ever wants to change it.
75    Care must be taken if it is increased, because it guards against integer
76    overflow caused by enormously large patterns. */
77 #ifndef MAX_NAME_SIZE
78 #define MAX_NAME_SIZE 32
79 #endif
80 
81 /* Defining NEVER_BACKSLASH_C locks out the use of \C in all patterns. */
82 /* #undef NEVER_BACKSLASH_C */
83 
84 /* The value of NEWLINE_DEFAULT determines the default newline character
85    sequence. PCRE2 client programs can override this by selecting other values
86    at run time. The valid values are 1 (CR), 2 (LF), 3 (CRLF), 4 (ANY), 5
87    (ANYCRLF), and 6 (NUL). */
88 #ifndef NEWLINE_DEFAULT
89 #define NEWLINE_DEFAULT 2
90 #endif
91 
92 /* The value of LINK_SIZE determines the number of bytes used to store links
93    as offsets within the compiled regex. The default is 2, which allows for
94    compiled patterns up to 64K long. This covers the vast majority of cases.
95    However, PCRE2 can also be compiled to use 3 or 4 bytes instead. This
96    allows for longer patterns in extreme cases. */
97 #ifndef LINK_SIZE
98 #define LINK_SIZE 2
99 #endif
100 
101