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Diffstat (limited to 'doc/pcre2.txt')
| -rw-r--r-- | doc/pcre2.txt | 87 |
1 files changed, 44 insertions, 43 deletions
diff --git a/doc/pcre2.txt b/doc/pcre2.txt index 3c3d980..c6343c6 100644 --- a/doc/pcre2.txt +++ b/doc/pcre2.txt @@ -185,8 +185,8 @@ REVISION Last updated: 28 April 2021 Copyright (c) 1997-2021 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2API(3) Library Functions Manual PCRE2API(3) @@ -2583,14 +2583,14 @@ MATCHING A PATTERN: THE TRADITIONAL FUNCTION which finds occurrences of "iss" in the middle of words. (\B matches only if the current position in the subject is not a word boundary.) - When applied to the string "Mississipi" the first call to pcre2_match() - finds the first occurrence. If pcre2_match() is called again with just - the remainder of the subject, namely "issipi", it does not match, be- - cause \B is always false at the start of the subject, which is deemed - to be a word boundary. However, if pcre2_match() is passed the entire - string again, but with startoffset set to 4, it finds the second occur- - rence of "iss" because it is able to look behind the starting point to - discover that it is preceded by a letter. + When applied to the string "Mississippi" the first call to + pcre2_match() finds the first occurrence. If pcre2_match() is called + again with just the remainder of the subject, namely "issippi", it does + not match, because \B is always false at the start of the subject, + which is deemed to be a word boundary. However, if pcre2_match() is + passed the entire string again, but with startoffset set to 4, it finds + the second occurrence of "iss" because it is able to look behind the + starting point to discover that it is preceded by a letter. Finding all the matches in a subject is tricky when the pattern can match an empty string. It is possible to emulate Perl's /g behaviour by @@ -3834,8 +3834,8 @@ REVISION Last updated: 04 November 2020 Copyright (c) 1997-2020 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2BUILD(3) Library Functions Manual PCRE2BUILD(3) @@ -4428,8 +4428,8 @@ REVISION Last updated: 20 March 2020 Copyright (c) 1997-2020 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2CALLOUT(3) Library Functions Manual PCRE2CALLOUT(3) @@ -4858,8 +4858,8 @@ REVISION Last updated: 03 February 2019 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2COMPAT(3) Library Functions Manual PCRE2COMPAT(3) @@ -5071,8 +5071,8 @@ REVISION Last updated: 06 October 2020 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2JIT(3) Library Functions Manual PCRE2JIT(3) @@ -5107,6 +5107,7 @@ AVAILABILITY OF JIT SUPPORT ARM 32-bit (v5, v7, and Thumb2) ARM 64-bit + IBM s390x 64 bit Intel x86 32-bit and 64-bit MIPS 32-bit and 64-bit Power PC 32-bit and 64-bit @@ -5326,7 +5327,7 @@ CONTROLLING THE JIT STACK This is a suggestion for how a multithreaded program that needs to set up non-default JIT stacks might operate: - During thread initalization + During thread initialization thread_local_var = pcre2_jit_stack_create(...) During thread exit @@ -5496,8 +5497,8 @@ REVISION Last updated: 23 May 2019 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2LIMITS(3) Library Functions Manual PCRE2LIMITS(3) @@ -5566,8 +5567,8 @@ REVISION Last updated: 02 February 2019 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2MATCHING(3) Library Functions Manual PCRE2MATCHING(3) @@ -5790,8 +5791,8 @@ REVISION Last updated: 23 May 2019 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2PARTIAL(3) Library Functions Manual PCRE2PARTIAL(3) @@ -6170,8 +6171,8 @@ REVISION Last updated: 04 September 2019 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2PATTERN(3) Library Functions Manual PCRE2PATTERN(3) @@ -6816,7 +6817,7 @@ BACKSLASH It is possible to restrict \R to match only CR, LF, or CRLF (instead of the complete set of Unicode line endings) by setting the option - PCRE2_BSR_ANYCRLF at compile time. (BSR is an abbrevation for "back- + PCRE2_BSR_ANYCRLF at compile time. (BSR is an abbreviation for "back- slash R".) This can be made the default when PCRE2 is built; if this is the case, the other behaviour can be requested via the PCRE2_BSR_UNI- CODE option. It is also possible to specify these settings by starting @@ -7016,8 +7017,8 @@ BACKSLASH 3. Do not break Hangul (a Korean script) syllable sequences. Hangul characters are of five types: L, V, T, LV, and LVT. An L character may be followed by an L, V, LV, or LVT character; an LV or V character may - be followed by a V or T character; an LVT or T character may be follwed - only by a T character. + be followed by a V or T character; an LVT or T character may be fol- + lowed only by a T character. 4. Do not end before extending characters or spacing marks or the "zero-width joiner" character. Characters with the "mark" property al- @@ -9388,7 +9389,7 @@ BACKTRACKING CONTROL If the subject is "aaaac...", after the first match attempt fails (starting at the first character in the string), the starting point skips on to start the next attempt at "c". Note that a possessive quan- - tifer does not have the same effect as this example; although it would + tifier does not have the same effect as this example; although it would suppress backtracking during the first match attempt, the second at- tempt would start at the second character instead of skipping on to "c". @@ -9618,8 +9619,8 @@ REVISION Last updated: 06 October 2020 Copyright (c) 1997-2020 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2PERFORM(3) Library Functions Manual PCRE2PERFORM(3) @@ -9853,8 +9854,8 @@ REVISION Last updated: 03 February 2019 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2POSIX(3) Library Functions Manual PCRE2POSIX(3) @@ -10187,8 +10188,8 @@ REVISION Last updated: 26 April 2021 Copyright (c) 1997-2021 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2SAMPLE(3) Library Functions Manual PCRE2SAMPLE(3) @@ -10466,8 +10467,8 @@ REVISION Last updated: 27 June 2018 Copyright (c) 1997-2018 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2SYNTAX(3) Library Functions Manual PCRE2SYNTAX(3) @@ -10982,8 +10983,8 @@ REVISION Last updated: 28 December 2019 Copyright (c) 1997-2019 University of Cambridge. ------------------------------------------------------------------------------ - - + + PCRE2UNICODE(3) Library Functions Manual PCRE2UNICODE(3) @@ -11417,5 +11418,5 @@ REVISION Last updated: 23 February 2020 Copyright (c) 1997-2020 University of Cambridge. ------------------------------------------------------------------------------ - - + + |