3 <title>pcre_fullinfo specification</title>
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6 <h1>pcre_fullinfo man page</h1>
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19 <b>#include <pcre.h></b>
22 <b>int pcre_fullinfo(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
23 <b> int <i>what</i>, void *<i>where</i>);</b>
26 <b>int pcre16_fullinfo(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
27 <b> int <i>what</i>, void *<i>where</i>);</b>
30 <b>int pcre32_fullinfo(const pcre32 *<i>code</i>, const pcre32_extra *<i>extra</i>,</b>
31 <b> int <i>what</i>, void *<i>where</i>);</b>
37 This function returns information about a compiled pattern. Its arguments are:
39 <i>code</i> Compiled regular expression
40 <i>extra</i> Result of <b>pcre[16|32]_study()</b> or NULL
41 <i>what</i> What information is required
42 <i>where</i> Where to put the information
44 The following information is available:
46 PCRE_INFO_BACKREFMAX Number of highest back reference
47 PCRE_INFO_CAPTURECOUNT Number of capturing subpatterns
48 PCRE_INFO_DEFAULT_TABLES Pointer to default tables
49 PCRE_INFO_FIRSTBYTE Fixed first data unit for a match, or
50 -1 for start of string
53 PCRE_INFO_FIRSTTABLE Table of first data units (after studying)
54 PCRE_INFO_HASCRORLF Return 1 if explicit CR or LF matches exist
55 PCRE_INFO_JCHANGED Return 1 if (?J) or (?-J) was used
56 PCRE_INFO_JIT Return 1 after successful JIT compilation
57 PCRE_INFO_JITSIZE Size of JIT compiled code
58 PCRE_INFO_LASTLITERAL Literal last data unit required
59 PCRE_INFO_MINLENGTH Lower bound length of matching strings
60 PCRE_INFO_MATCHEMPTY Return 1 if the pattern can match an empty string,
62 PCRE_INFO_MATCHLIMIT Match limit if set, otherwise PCRE_RROR_UNSET
63 PCRE_INFO_MAXLOOKBEHIND Length (in characters) of the longest lookbehind assertion
64 PCRE_INFO_NAMECOUNT Number of named subpatterns
65 PCRE_INFO_NAMEENTRYSIZE Size of name table entry
66 PCRE_INFO_NAMETABLE Pointer to name table
67 PCRE_INFO_OKPARTIAL Return 1 if partial matching can be tried
68 (always returns 1 after release 8.00)
69 PCRE_INFO_OPTIONS Option bits used for compilation
70 PCRE_INFO_SIZE Size of compiled pattern
71 PCRE_INFO_STUDYSIZE Size of study data
72 PCRE_INFO_FIRSTCHARACTER Fixed first data unit for a match
73 PCRE_INFO_FIRSTCHARACTERFLAGS Returns
74 1 if there is a first data character set, which can
75 then be retrieved using PCRE_INFO_FIRSTCHARACTER,
76 2 if the first character is at the start of the data
77 string or after a newline, and
79 PCRE_INFO_RECURSIONLIMIT Recursion limit if set, otherwise PCRE_ERROR_UNSET
80 PCRE_INFO_REQUIREDCHAR Literal last data unit required
81 PCRE_INFO_REQUIREDCHARFLAGS Returns 1 if the last data character is set (which can then
82 be retrieved using PCRE_INFO_REQUIREDCHAR); 0 otherwise
84 The <i>where</i> argument must point to an integer variable, except for the
85 following <i>what</i> values:
87 PCRE_INFO_DEFAULT_TABLES const uint8_t *
88 PCRE_INFO_FIRSTCHARACTER uint32_t
89 PCRE_INFO_FIRSTTABLE const uint8_t *
90 PCRE_INFO_JITSIZE size_t
91 PCRE_INFO_MATCHLIMIT uint32_t
92 PCRE_INFO_NAMETABLE PCRE_SPTR16 (16-bit library)
93 PCRE_INFO_NAMETABLE PCRE_SPTR32 (32-bit library)
94 PCRE_INFO_NAMETABLE const unsigned char * (8-bit library)
95 PCRE_INFO_OPTIONS unsigned long int
97 PCRE_INFO_STUDYSIZE size_t
98 PCRE_INFO_RECURSIONLIMIT uint32_t
99 PCRE_INFO_REQUIREDCHAR uint32_t
101 The yield of the function is zero on success or:
103 PCRE_ERROR_NULL the argument <i>code</i> was NULL
104 the argument <i>where</i> was NULL
105 PCRE_ERROR_BADMAGIC the "magic number" was not found
106 PCRE_ERROR_BADOPTION the value of <i>what</i> was invalid
107 PCRE_ERROR_UNSET the option was not set
111 There is a complete description of the PCRE native API in the
112 <a href="pcreapi.html"><b>pcreapi</b></a>
113 page and a description of the POSIX API in the
114 <a href="pcreposix.html"><b>pcreposix</b></a>
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