1PCRE_EXEC(3) Library Functions Manual PCRE_EXEC(3)
2
6 PCRE - Perl-compatible regular expressions
7
9 #include <pcre.h>
11 int pcre_jit_exec(const pcre *code, const pcre_extra *extra,
13 const char *subject, int length, int startoffset,
14 int options, int *ovector, int ovecsize,
15 pcre_jit_stack *jstack);
16 int pcre16_jit_exec(const pcre16 *code, const pcre16_extra *extra,
18 PCRE_SPTR16 subject, int length, int startoffset,
19 int options, int *ovector, int ovecsize,
20 pcre_jit_stack *jstack);
21 int pcre32_jit_exec(const pcre32 *code, const pcre32_extra *extra,
23 PCRE_SPTR32 subject, int length, int startoffset,
24 int options, int *ovector, int ovecsize,
25 pcre_jit_stack *jstack);
26
28 This function matches a compiled regular expression that has been suc‐
30 cessfully studied with one of the JIT options against a given subject
31 string, using a matching algorithm that is similar to Perl's. It is a
32 "fast path" interface to JIT, and it bypasses some of the sanity checks
33 that pcre_exec() applies. It returns offsets to captured substrings.
34 Its arguments are:
35 code Points to the compiled pattern
37 extra Points to an associated pcre[16|32]_extra structure,
38 or is NULL
39 subject Points to the subject string
40 length Length of the subject string, in bytes
41 startoffset Offset in bytes in the subject at which to
42 start matching
43 options Option bits
44 ovector Points to a vector of ints for result offsets
45 ovecsize Number of elements in the vector (a multiple of 3)
46 jstack Pointer to a JIT stack
47 The allowed options are:
49 PCRE_NOTBOL Subject string is not the beginning of a line
51 PCRE_NOTEOL Subject string is not the end of a line
52 PCRE_NOTEMPTY An empty string is not a valid match
53 PCRE_NOTEMPTY_ATSTART An empty string at the start of the subject
54 is not a valid match
55 PCRE_NO_UTF16_CHECK Do not check the subject for UTF-16
56 validity (only relevant if PCRE_UTF16
57 was set at compile time)
58 PCRE_NO_UTF32_CHECK Do not check the subject for UTF-32
59 validity (only relevant if PCRE_UTF32
60 was set at compile time)
61 PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8
62 validity (only relevant if PCRE_UTF8
63 was set at compile time)
64 PCRE_PARTIAL ) Return PCRE_ERROR_PARTIAL for a partial
65 PCRE_PARTIAL_SOFT ) match if no full matches are found
66 PCRE_PARTIAL_HARD Return PCRE_ERROR_PARTIAL for a partial match
67 if that is found before a full match
68 However, the PCRE_NO_UTF[8|16|32]_CHECK options have no effect, as this
70 check is never applied. For details of partial matching, see the
71 pcrepartial page. A pcre_extra structure contains the following fields:
72 flags Bits indicating which fields are set
74 study_data Opaque data from pcre[16|32]_study()
75 match_limit Limit on internal resource use
76 match_limit_recursion Limit on internal recursion depth
77 callout_data Opaque data passed back to callouts
78 tables Points to character tables or is NULL
79 mark For passing back a *MARK pointer
80 executable_jit Opaque data from JIT compilation
81 The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
83 PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA,
84 PCRE_EXTRA_TABLES, PCRE_EXTRA_MARK and PCRE_EXTRA_EXECUTABLE_JIT.
85 There is a complete description of the PCRE native API in the pcreapi
87 page and a description of the JIT API in the pcrejit page.
88PCRE 8.30 31 October 2012 PCRE_EXEC(3)