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1 <html>
2 <head>
3 <title>pcre_fullinfo specification</title>
4 </head>
5 <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
6 <h1>pcre_fullinfo man page</h1>
7 <p>
8 Return to the <a href="index.html">PCRE index page</a>.
9 </p>
10 <p>
11 This page is part of the PCRE HTML documentation. It was generated automatically
12 from the original man page. If there is any nonsense in it, please consult the
13 man page, in case the conversion went wrong.
14 <br>
15 <br><b>
16 SYNOPSIS
17 </b><br>
18 <P>
19 <b>#include &#60;pcre.h&#62;</b>
20 </P>
21 <P>
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>
24 <br>
25 <br>
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>
28 <br>
29 <br>
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>
32 </P>
33 <br><b>
34 DESCRIPTION
35 </b><br>
36 <P>
37 This function returns information about a compiled pattern. Its arguments are:
38 <pre>
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
43 </pre>
44 The following information is available:
45 <pre>
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
51 or after newline, or
52 -2 otherwise
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,
61 0 otherwise
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
78 0 otherwise
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
83 </pre>
84 The <i>where</i> argument must point to an integer variable, except for the
85 following <i>what</i> values:
86 <pre>
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
96 PCRE_INFO_SIZE size_t
97 PCRE_INFO_STUDYSIZE size_t
98 PCRE_INFO_RECURSIONLIMIT uint32_t
99 PCRE_INFO_REQUIREDCHAR uint32_t
100 </pre>
101 The yield of the function is zero on success or:
102 <pre>
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
108 </PRE>
109 </P>
110 <P>
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>
115 page.
116 <p>
117 Return to the <a href="index.html">PCRE index page</a>.
118 </p>

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