Documentation updates.
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Philip.Hazel
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@ -1,4 +1,4 @@
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.TH PCRE2_PATTERN_INFO 3 "01 December 2014" "PCRE2 10.00"
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.TH PCRE2_PATTERN_INFO 3 "21 November 2015" "PCRE2 10.21"
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.SH NAME
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PCRE2 - Perl-compatible regular expressions (revised API)
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.SH SYNOPSIS
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@ -30,19 +30,20 @@ request are as follows:
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PCRE2_BSR_ANYCRLF: CR, LF, or CRLF only
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PCRE2_INFO_CAPTURECOUNT Number of capturing subpatterns
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PCRE2_INFO_FIRSTBITMAP Bitmap of first code units, or NULL
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PCRE2_INFO_FIRSTCODEUNIT First code unit when type is 1
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PCRE2_INFO_FIRSTCODETYPE Type of start-of-match information
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0 nothing set
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1 first code unit is set
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2 start of string or after newline
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PCRE2_INFO_FIRSTCODEUNIT First code unit when type is 1
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PCRE2_INFO_HASBACKSLASHC Return 1 if pattern contains \eC
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PCRE2_INFO_HASCRORLF Return 1 if explicit CR or LF matches
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exist in the pattern
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PCRE2_INFO_JCHANGED Return 1 if (?J) or (?-J) was used
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PCRE2_INFO_JITSIZE Size of JIT compiled code, or 0
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PCRE2_INFO_LASTCODEUNIT Last code unit when type is 1
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PCRE2_INFO_LASTCODETYPE Type of must-be-present information
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0 nothing set
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1 code unit is set
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PCRE2_INFO_LASTCODEUNIT Last code unit when type is 1
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PCRE2_INFO_MATCHEMPTY 1 if the pattern can match an
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empty string, 0 otherwise
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PCRE2_INFO_MATCHLIMIT Match limit if set,
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@ -50,8 +51,8 @@ request are as follows:
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PCRE2_INFO_MAXLOOKBEHIND Length (in characters) of the longest
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lookbehind assertion
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PCRE2_INFO_MINLENGTH Lower bound length of matching strings
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PCRE2_INFO_NAMEENTRYSIZE Size of name table entries
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PCRE2_INFO_NAMECOUNT Number of named subpatterns
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PCRE2_INFO_NAMEENTRYSIZE Size of name table entries
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PCRE2_INFO_NAMETABLE Pointer to name table
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PCRE2_CONFIG_NEWLINE Code for the newline sequence:
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PCRE2_NEWLINE_CR
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@ -1,4 +1,4 @@
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.TH PCRE2API 3 "14 November 2015" "PCRE2 10.21"
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.TH PCRE2API 3 "21 November 2015" "PCRE2 10.21"
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.SH NAME
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PCRE2 - Perl-compatible regular expressions (revised API)
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.sp
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@ -736,7 +736,9 @@ PCRE2_USE_OFFSET_LIMIT is not set, an error is generated.
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.P
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The offset limit facility can be used to track progress when searching large
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subject strings. See also the PCRE2_FIRSTLINE option, which requires a match to
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start within the first line of the subject.
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start within the first line of the subject. If this is set with an offset
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limit, a match must occur in the first line and also within the offset limit.
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In other words, whichever limit comes first is used.
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.sp
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.nf
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.B int pcre2_set_match_limit(pcre2_match_context *\fImcontext\fP,
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@ -1186,7 +1188,9 @@ built.
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If this option is set, an unanchored pattern is required to match before or at
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the first newline in the subject string, though the matched text may continue
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over the newline. See also PCRE2_USE_OFFSET_LIMIT, which provides a more
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general limiting facility.
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general limiting facility. If PCRE2_FIRSTLINE is set with an offset limit, a
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match must occur in the first line and also within the offset limit. In other
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words, whichever limit comes first is used.
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.sp
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PCRE2_MATCH_UNSET_BACKREF
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.sp
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@ -1610,6 +1614,17 @@ matches only CR, LF, or CRLF.
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.sp
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Return the number of capturing subpatterns in the pattern. The third argument
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should point to an \fBuint32_t\fP variable.
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.sp
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PCRE2_INFO_FIRSTBITMAP
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.sp
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In the absence of a single first code unit for a non-anchored pattern,
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\fBpcre2_compile()\fP may construct a 256-bit table that defines a fixed set of
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values for the first code unit in any match. For example, a pattern that starts
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with [abc] results in a table with three bits set. When code unit values
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greater than 255 are supported, the flag bit for 255 means "any code unit of
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value 255 or above". If such a table was constructed, a pointer to it is
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returned. Otherwise NULL is returned. The third argument should point to an
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\fBconst uint8_t *\fP variable.
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.sp
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PCRE2_INFO_FIRSTCODETYPE
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.sp
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@ -1632,17 +1647,6 @@ argument should point to an \fBuint32_t\fP variable. In the 8-bit library, the
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value is always less than 256. In the 16-bit library the value can be up to
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0xffff. In the 32-bit library in UTF-32 mode the value can be up to 0x10ffff,
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and up to 0xffffffff when not using UTF-32 mode.
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.sp
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PCRE2_INFO_FIRSTBITMAP
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.sp
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In the absence of a single first code unit for a non-anchored pattern,
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\fBpcre2_compile()\fP may construct a 256-bit table that defines a fixed set of
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values for the first code unit in any match. For example, a pattern that starts
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with [abc] results in a table with three bits set. When code unit values
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greater than 255 are supported, the flag bit for 255 means "any code unit of
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value 255 or above". If such a table was constructed, a pointer to it is
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returned. Otherwise NULL is returned. The third argument should point to an
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\fBconst uint8_t *\fP variable.
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.sp
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PCRE2_INFO_HASBACKSLASHC
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.sp
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@ -3097,6 +3101,6 @@ Cambridge, England.
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.rs
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.sp
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.nf
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Last updated: 14 November 2015
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Last updated: 21 November 2015
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Copyright (c) 1997-2015 University of Cambridge.
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.fi
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