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diff --git a/src/third_party/pcre-8.36/NEWS b/src/third_party/pcre-8.36/NEWS deleted file mode 100644 index 5b8c60c14b8..00000000000 --- a/src/third_party/pcre-8.36/NEWS +++ /dev/null @@ -1,700 +0,0 @@ -News about PCRE releases ------------------------- - -Release 8.36 26-September-2014 ------------------------------- - -This is primarily a bug-fix release. However, in addition, the Unicode data -tables have been updated to Unicode 7.0.0. - - -Release 8.35 04-April-2014 --------------------------- - -There have been performance improvements for classes containing non-ASCII -characters and the "auto-possessification" feature has been extended. Other -minor improvements have been implemented and bugs fixed. There is a new callout -feature to enable applications to do detailed stack checks at compile time, to -avoid running out of stack for deeply nested parentheses. The JIT compiler has -been extended with experimental support for ARM-64, MIPS-64, and PPC-LE. - - -Release 8.34 15-December-2013 ------------------------------ - -As well as fixing the inevitable bugs, performance has been improved by -refactoring and extending the amount of "auto-possessification" that PCRE does. -Other notable changes: - -. Implemented PCRE_INFO_MATCH_EMPTY, which yields 1 if the pattern can match - an empty string. If it can, pcretest shows this in its information output. - -. A back reference to a named subpattern when there is more than one of the - same name now checks them in the order in which they appear in the pattern. - The first one that is set is used for the reference. Previously only the - first one was inspected. This change makes PCRE more compatible with Perl. - -. Unicode character properties were updated from Unicode 6.3.0. - -. The character VT has been added to the set of characters that match \s and - are generally treated as white space, following this same change in Perl - 5.18. There is now no difference between "Perl space" and "POSIX space". - -. Perl has changed its handling of \8 and \9. If there is no previously - encountered capturing group of those numbers, they are treated as the - literal characters 8 and 9 instead of a binary zero followed by the - literals. PCRE now does the same. - -. Following Perl, added \o{} to specify codepoints in octal, making it - possible to specify values greater than 0777 and also making them - unambiguous. - -. In UCP mode, \s was not matching two of the characters that Perl matches, - namely NEL (U+0085) and MONGOLIAN VOWEL SEPARATOR (U+180E), though they - were matched by \h. - -. Add JIT support for the 64 bit TileGX architecture. - -. Upgraded the handling of the POSIX classes [:graph:], [:print:], and - [:punct:] when PCRE_UCP is set so as to include the same characters as Perl - does in Unicode mode. - -. Perl no longer allows group names to start with digits, so I have made this - change also in PCRE. - -. Added support for [[:<:]] and [[:>:]] as used in the BSD POSIX library to - mean "start of word" and "end of word", respectively, as a transition aid. - - -Release 8.33 28-May-2013 --------------------------- - -A number of bugs are fixed, and some performance improvements have been made. -There are also some new features, of which these are the most important: - -. The behaviour of the backtracking verbs has been rationalized and - documented in more detail. - -. JIT now supports callouts and all of the backtracking verbs. - -. Unicode validation has been updated in the light of Unicode Corrigendum #9, - which points out that "non characters" are not "characters that may not - appear in Unicode strings" but rather "characters that are reserved for - internal use and have only local meaning". - -. (*LIMIT_MATCH=d) and (*LIMIT_RECURSION=d) have been added so that the - creator of a pattern can specify lower (but not higher) limits for the - matching process. - -. The PCRE_NEVER_UTF option is available to prevent pattern-writers from using - the (*UTF) feature, as this could be a security issue. - - -Release 8.32 30-November-2012 ------------------------------ - -This release fixes a number of bugs, but also has some new features. These are -the highlights: - -. There is now support for 32-bit character strings and UTF-32. Like the - 16-bit support, this is done by compiling a separate 32-bit library. - -. \X now matches a Unicode extended grapheme cluster. - -. Case-independent matching of Unicode characters that have more than one - "other case" now makes all three (or more) characters equivalent. This - applies, for example, to Greek Sigma, which has two lowercase versions. - -. Unicode character properties are updated to Unicode 6.2.0. - -. The EBCDIC support, which had decayed, has had a spring clean. - -. A number of JIT optimizations have been added, which give faster JIT - execution speed. In addition, a new direct interface to JIT execution is - available. This bypasses some of the sanity checks of pcre_exec() to give a - noticeable speed-up. - -. A number of issues in pcregrep have been fixed, making it more compatible - with GNU grep. In particular, --exclude and --include (and variants) apply - to all files now, not just those obtained from scanning a directory - recursively. In Windows environments, the default action for directories is - now "skip" instead of "read" (which provokes an error). - -. If the --only-matching (-o) option in pcregrep is specified multiple - times, each one causes appropriate output. For example, -o1 -o2 outputs the - substrings matched by the 1st and 2nd capturing parentheses. A separating - string can be specified by --om-separator (default empty). - -. When PCRE is built via Autotools using a version of gcc that has the - "visibility" feature, it is used to hide internal library functions that are - not part of the public API. - - -Release 8.31 06-July-2012 -------------------------- - -This is mainly a bug-fixing release, with a small number of developments: - -. The JIT compiler now supports partial matching and the (*MARK) and - (*COMMIT) verbs. - -. PCRE_INFO_MAXLOOKBEHIND can be used to find the longest lookbehind in a - pattern. - -. There should be a performance improvement when using the heap instead of the - stack for recursion. - -. pcregrep can now be linked with libedit as an alternative to libreadline. - -. pcregrep now has a --file-list option where the list of files to scan is - given as a file. - -. pcregrep now recognizes binary files and there are related options. - -. The Unicode tables have been updated to 6.1.0. - -As always, the full list of changes is in the ChangeLog file. - - -Release 8.30 04-February-2012 ------------------------------ - -Release 8.30 introduces a major new feature: support for 16-bit character -strings, compiled as a separate library. There are a few changes to the -8-bit library, in addition to some bug fixes. - -. The pcre_info() function, which has been obsolete for over 10 years, has - been removed. - -. When a compiled pattern was saved to a file and later reloaded on a host - with different endianness, PCRE used automatically to swap the bytes in some - of the data fields. With the advent of the 16-bit library, where more of this - swapping is needed, it is no longer done automatically. Instead, the bad - endianness is detected and a specific error is given. The user can then call - a new function called pcre_pattern_to_host_byte_order() (or an equivalent - 16-bit function) to do the swap. - -. In UTF-8 mode, the values 0xd800 to 0xdfff are not legal Unicode - code points and are now faulted. (They are the so-called "surrogates" - that are reserved for coding high values in UTF-16.) - - -Release 8.21 12-Dec-2011 ------------------------- - -This is almost entirely a bug-fix release. The only new feature is the ability -to obtain the size of the memory used by the JIT compiler. - - -Release 8.20 21-Oct-2011 ------------------------- - -The main change in this release is the inclusion of Zoltan Herczeg's -just-in-time compiler support, which can be accessed by building PCRE with ---enable-jit. Large performance benefits can be had in many situations. 8.20 -also fixes an unfortunate bug that was introduced in 8.13 as well as tidying up -a number of infelicities and differences from Perl. - - -Release 8.13 16-Aug-2011 ------------------------- - -This is mainly a bug-fix release. There has been a lot of internal refactoring. -The Unicode tables have been updated. The only new feature in the library is -the passing of *MARK information to callouts. Some additions have been made to -pcretest to make testing easier and more comprehensive. There is a new option -for pcregrep to adjust its internal buffer size. - - -Release 8.12 15-Jan-2011 ------------------------- - -This release fixes some bugs in pcregrep, one of which caused the tests to fail -on 64-bit big-endian systems. There are no changes to the code of the library. - - -Release 8.11 10-Dec-2010 ------------------------- - -A number of bugs in the library and in pcregrep have been fixed. As always, see -ChangeLog for details. The following are the non-bug-fix changes: - -. Added --match-limit and --recursion-limit to pcregrep. - -. Added an optional parentheses number to the -o and --only-matching options - of pcregrep. - -. Changed the way PCRE_PARTIAL_HARD affects the matching of $, \z, \Z, \b, and - \B. - -. Added PCRE_ERROR_SHORTUTF8 to make it possible to distinguish between a - bad UTF-8 sequence and one that is incomplete when using PCRE_PARTIAL_HARD. - -. Recognize (*NO_START_OPT) at the start of a pattern to set the PCRE_NO_ - START_OPTIMIZE option, which is now allowed at compile time - - -Release 8.10 25-Jun-2010 ------------------------- - -There are two major additions: support for (*MARK) and friends, and the option -PCRE_UCP, which changes the behaviour of \b, \d, \s, and \w (and their -opposites) so that they make use of Unicode properties. There are also a number -of lesser new features, and several bugs have been fixed. A new option, ---line-buffered, has been added to pcregrep, for use when it is connected to -pipes. - - -Release 8.02 19-Mar-2010 ------------------------- - -Another bug-fix release. - - -Release 8.01 19-Jan-2010 ------------------------- - -This is a bug-fix release. Several bugs in the code itself and some bugs and -infelicities in the build system have been fixed. - - -Release 8.00 19-Oct-09 ----------------------- - -Bugs have been fixed in the library and in pcregrep. There are also some -enhancements. Restrictions on patterns used for partial matching have been -removed, extra information is given for partial matches, the partial matching -process has been improved, and an option to make a partial match override a -full match is available. The "study" process has been enhanced by finding a -lower bound matching length. Groups with duplicate numbers may now have -duplicated names without the use of PCRE_DUPNAMES. However, they may not have -different names. The documentation has been revised to reflect these changes. -The version number has been expanded to 3 digits as it is clear that the rate -of change is not slowing down. - - -Release 7.9 11-Apr-09 ---------------------- - -Mostly bugfixes and tidies with just a couple of minor functional additions. - - -Release 7.8 05-Sep-08 ---------------------- - -More bug fixes, plus a performance improvement in Unicode character property -lookup. - - -Release 7.7 07-May-08 ---------------------- - -This is once again mainly a bug-fix release, but there are a couple of new -features. - - -Release 7.6 28-Jan-08 ---------------------- - -The main reason for having this release so soon after 7.5 is because it fixes a -potential buffer overflow problem in pcre_compile() when run in UTF-8 mode. In -addition, the CMake configuration files have been brought up to date. - - -Release 7.5 10-Jan-08 ---------------------- - -This is mainly a bug-fix release. However the ability to link pcregrep with -libz or libbz2 and the ability to link pcretest with libreadline have been -added. Also the --line-offsets and --file-offsets options were added to -pcregrep. - - -Release 7.4 21-Sep-07 ---------------------- - -The only change of specification is the addition of options to control whether -\R matches any Unicode line ending (the default) or just CR, LF, and CRLF. -Otherwise, the changes are bug fixes and a refactoring to reduce the number of -relocations needed in a shared library. There have also been some documentation -updates, in particular, some more information about using CMake to build PCRE -has been added to the NON-UNIX-USE file. - - -Release 7.3 28-Aug-07 ---------------------- - -Most changes are bug fixes. Some that are not: - -1. There is some support for Perl 5.10's experimental "backtracking control - verbs" such as (*PRUNE). - -2. UTF-8 checking is now as per RFC 3629 instead of RFC 2279; this is more - restrictive in the strings it accepts. - -3. Checking for potential integer overflow has been made more dynamic, and as a - consequence there is no longer a hard limit on the size of a subpattern that - has a limited repeat count. - -4. When CRLF is a valid line-ending sequence, pcre_exec() and pcre_dfa_exec() - no longer advance by two characters instead of one when an unanchored match - fails at CRLF if there are explicit CR or LF matches within the pattern. - This gets rid of some anomalous effects that previously occurred. - -5. Some PCRE-specific settings for varying the newline options at the start of - a pattern have been added. - - -Release 7.2 19-Jun-07 ---------------------- - -WARNING: saved patterns that were compiled by earlier versions of PCRE must be -recompiled for use with 7.2 (necessitated by the addition of \K, \h, \H, \v, -and \V). - -Correction to the notes for 7.1: the note about shared libraries for Windows is -wrong. Previously, three libraries were built, but each could function -independently. For example, the pcreposix library also included all the -functions from the basic pcre library. The change is that the three libraries -are no longer independent. They are like the Unix libraries. To use the -pcreposix functions, for example, you need to link with both the pcreposix and -the basic pcre library. - -Some more features from Perl 5.10 have been added: - - (?-n) and (?+n) relative references for recursion and subroutines. - - (?(-n) and (?(+n) relative references as conditions. - - \k{name} and \g{name} are synonyms for \k<name>. - - \K to reset the start of the matched string; for example, (foo)\Kbar - matches bar preceded by foo, but only sets bar as the matched string. - - (?| introduces a group where the capturing parentheses in each alternative - start from the same number; for example, (?|(abc)|(xyz)) sets capturing - parentheses number 1 in both cases. - - \h, \H, \v, \V match horizontal and vertical whitespace, respectively. - - -Release 7.1 24-Apr-07 ---------------------- - -There is only one new feature in this release: a linebreak setting of -PCRE_NEWLINE_ANYCRLF. It is a cut-down version of PCRE_NEWLINE_ANY, which -recognizes only CRLF, CR, and LF as linebreaks. - -A few bugs are fixed (see ChangeLog for details), but the major change is a -complete re-implementation of the build system. This now has full Autotools -support and so is now "standard" in some sense. It should help with compiling -PCRE in a wide variety of environments. - -NOTE: when building shared libraries for Windows, three dlls are now built, -called libpcre, libpcreposix, and libpcrecpp. Previously, everything was -included in a single dll. - -Another important change is that the dftables auxiliary program is no longer -compiled and run at "make" time by default. Instead, a default set of character -tables (assuming ASCII coding) is used. If you want to use dftables to generate -the character tables as previously, add --enable-rebuild-chartables to the -"configure" command. You must do this if you are compiling PCRE to run on a -system that uses EBCDIC code. - -There is a discussion about character tables in the README file. The default is -not to use dftables so that that there is no problem when cross-compiling. - - -Release 7.0 19-Dec-06 ---------------------- - -This release has a new major number because there have been some internal -upheavals to facilitate the addition of new optimizations and other facilities, -and to make subsequent maintenance and extension easier. Compilation is likely -to be a bit slower, but there should be no major effect on runtime performance. -Previously compiled patterns are NOT upwards compatible with this release. If -you have saved compiled patterns from a previous release, you will have to -re-compile them. Important changes that are visible to users are: - -1. The Unicode property tables have been updated to Unicode 5.0.0, which adds - some more scripts. - -2. The option PCRE_NEWLINE_ANY causes PCRE to recognize any Unicode newline - sequence as a newline. - -3. The \R escape matches a single Unicode newline sequence as a single unit. - -4. New features that will appear in Perl 5.10 are now in PCRE. These include - alternative Perl syntax for named parentheses, and Perl syntax for - recursion. - -5. The C++ wrapper interface has been extended by the addition of a - QuoteMeta function and the ability to allow copy construction and - assignment. - -For a complete list of changes, see the ChangeLog file. - - -Release 6.7 04-Jul-06 ---------------------- - -The main additions to this release are the ability to use the same name for -multiple sets of parentheses, and support for CRLF line endings in both the -library and pcregrep (and in pcretest for testing). - -Thanks to Ian Taylor, the stack usage for many kinds of pattern has been -significantly reduced for certain subject strings. - - -Release 6.5 01-Feb-06 ---------------------- - -Important changes in this release: - -1. A number of new features have been added to pcregrep. - -2. The Unicode property tables have been updated to Unicode 4.1.0, and the - supported properties have been extended with script names such as "Arabic", - and the derived properties "Any" and "L&". This has necessitated a change to - the interal format of compiled patterns. Any saved compiled patterns that - use \p or \P must be recompiled. - -3. The specification of recursion in patterns has been changed so that all - recursive subpatterns are automatically treated as atomic groups. Thus, for - example, (?R) is treated as if it were (?>(?R)). This is necessary because - otherwise there are situations where recursion does not work. - -See the ChangeLog for a complete list of changes, which include a number of bug -fixes and tidies. - - -Release 6.0 07-Jun-05 ---------------------- - -The release number has been increased to 6.0 because of the addition of several -major new pieces of functionality. - -A new function, pcre_dfa_exec(), which implements pattern matching using a DFA -algorithm, has been added. This has a number of advantages for certain cases, -though it does run more slowly, and lacks the ability to capture substrings. On -the other hand, it does find all matches, not just the first, and it works -better for partial matching. The pcrematching man page discusses the -differences. - -The pcretest program has been enhanced so that it can make use of the new -pcre_dfa_exec() matching function and the extra features it provides. - -The distribution now includes a C++ wrapper library. This is built -automatically if a C++ compiler is found. The pcrecpp man page discusses this -interface. - -The code itself has been re-organized into many more files, one for each -function, so it no longer requires everything to be linked in when static -linkage is used. As a consequence, some internal functions have had to have -their names exposed. These functions all have names starting with _pcre_. They -are undocumented, and are not intended for use by outside callers. - -The pcregrep program has been enhanced with new functionality such as -multiline-matching and options for output more matching context. See the -ChangeLog for a complete list of changes to the library and the utility -programs. - - -Release 5.0 13-Sep-04 ---------------------- - -The licence under which PCRE is released has been changed to the more -conventional "BSD" licence. - -In the code, some bugs have been fixed, and there are also some major changes -in this release (which is why I've increased the number to 5.0). Some changes -are internal rearrangements, and some provide a number of new facilities. The -new features are: - -1. There's an "automatic callout" feature that inserts callouts before every - item in the regex, and there's a new callout field that gives the position - in the pattern - useful for debugging and tracing. - -2. The extra_data structure can now be used to pass in a set of character - tables at exec time. This is useful if compiled regex are saved and re-used - at a later time when the tables may not be at the same address. If the - default internal tables are used, the pointer saved with the compiled - pattern is now set to NULL, which means that you don't need to do anything - special unless you are using custom tables. - -3. It is possible, with some restrictions on the content of the regex, to - request "partial" matching. A special return code is given if all of the - subject string matched part of the regex. This could be useful for testing - an input field as it is being typed. - -4. There is now some optional support for Unicode character properties, which - means that the patterns items such as \p{Lu} and \X can now be used. Only - the general category properties are supported. If PCRE is compiled with this - support, an additional 90K data structure is include, which increases the - size of the library dramatically. - -5. There is support for saving compiled patterns and re-using them later. - -6. There is support for running regular expressions that were compiled on a - different host with the opposite endianness. - -7. The pcretest program has been extended to accommodate the new features. - -The main internal rearrangement is that sequences of literal characters are no -longer handled as strings. Instead, each character is handled on its own. This -makes some UTF-8 handling easier, and makes the support of partial matching -possible. Compiled patterns containing long literal strings will be larger as a -result of this change; I hope that performance will not be much affected. - - -Release 4.5 01-Dec-03 ---------------------- - -Again mainly a bug-fix and tidying release, with only a couple of new features: - -1. It's possible now to compile PCRE so that it does not use recursive -function calls when matching. Instead it gets memory from the heap. This slows -things down, but may be necessary on systems with limited stacks. - -2. UTF-8 string checking has been tightened to reject overlong sequences and to -check that a starting offset points to the start of a character. Failure of the -latter returns a new error code: PCRE_ERROR_BADUTF8_OFFSET. - -3. PCRE can now be compiled for systems that use EBCDIC code. - - -Release 4.4 21-Aug-03 ---------------------- - -This is mainly a bug-fix and tidying release. The only new feature is that PCRE -checks UTF-8 strings for validity by default. There is an option to suppress -this, just in case anybody wants that teeny extra bit of performance. - - -Releases 4.1 - 4.3 ------------------- - -Sorry, I forgot about updating the NEWS file for these releases. Please take a -look at ChangeLog. - - -Release 4.0 17-Feb-03 ---------------------- - -There have been a lot of changes for the 4.0 release, adding additional -functionality and mending bugs. Below is a list of the highlights of the new -functionality. For full details of these features, please consult the -documentation. For a complete list of changes, see the ChangeLog file. - -1. Support for Perl's \Q...\E escapes. - -2. "Possessive quantifiers" ?+, *+, ++, and {,}+ which come from Sun's Java -package. They provide some syntactic sugar for simple cases of "atomic -grouping". - -3. Support for the \G assertion. It is true when the current matching position -is at the start point of the match. - -4. A new feature that provides some of the functionality that Perl provides -with (?{...}). The facility is termed a "callout". The way it is done in PCRE -is for the caller to provide an optional function, by setting pcre_callout to -its entry point. To get the function called, the regex must include (?C) at -appropriate points. - -5. Support for recursive calls to individual subpatterns. This makes it really -easy to get totally confused. - -6. Support for named subpatterns. The Python syntax (?P<name>...) is used to -name a group. - -7. Several extensions to UTF-8 support; it is now fairly complete. There is an -option for pcregrep to make it operate in UTF-8 mode. - -8. The single man page has been split into a number of separate man pages. -These also give rise to individual HTML pages which are put in a separate -directory. There is an index.html page that lists them all. Some hyperlinking -between the pages has been installed. - - -Release 3.5 15-Aug-01 ---------------------- - -1. The configuring system has been upgraded to use later versions of autoconf -and libtool. By default it builds both a shared and a static library if the OS -supports it. You can use --disable-shared or --disable-static on the configure -command if you want only one of them. - -2. The pcretest utility is now installed along with pcregrep because it is -useful for users (to test regexs) and by doing this, it automatically gets -relinked by libtool. The documentation has been turned into a man page, so -there are now .1, .txt, and .html versions in /doc. - -3. Upgrades to pcregrep: - (i) Added long-form option names like gnu grep. - (ii) Added --help to list all options with an explanatory phrase. - (iii) Added -r, --recursive to recurse into sub-directories. - (iv) Added -f, --file to read patterns from a file. - -4. Added --enable-newline-is-cr and --enable-newline-is-lf to the configure -script, to force use of CR or LF instead of \n in the source. On non-Unix -systems, the value can be set in config.h. - -5. The limit of 200 on non-capturing parentheses is a _nesting_ limit, not an -absolute limit. Changed the text of the error message to make this clear, and -likewise updated the man page. - -6. The limit of 99 on the number of capturing subpatterns has been removed. -The new limit is 65535, which I hope will not be a "real" limit. - - -Release 3.3 01-Aug-00 ---------------------- - -There is some support for UTF-8 character strings. This is incomplete and -experimental. The documentation describes what is and what is not implemented. -Otherwise, this is just a bug-fixing release. - - -Release 3.0 01-Feb-00 ---------------------- - -1. A "configure" script is now used to configure PCRE for Unix systems. It -builds a Makefile, a config.h file, and the pcre-config script. - -2. PCRE is built as a shared library by default. - -3. There is support for POSIX classes such as [:alpha:]. - -5. There is an experimental recursion feature. - ----------------------------------------------------------------------------- - IMPORTANT FOR THOSE UPGRADING FROM VERSIONS BEFORE 2.00 - -Please note that there has been a change in the API such that a larger -ovector is required at matching time, to provide some additional workspace. -The new man page has details. This change was necessary in order to support -some of the new functionality in Perl 5.005. - - IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.00 - -Another (I hope this is the last!) change has been made to the API for the -pcre_compile() function. An additional argument has been added to make it -possible to pass over a pointer to character tables built in the current -locale by pcre_maketables(). To use the default tables, this new argument -should be passed as NULL. - - IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.05 - -Yet another (and again I hope this really is the last) change has been made -to the API for the pcre_exec() function. An additional argument has been -added to make it possible to start the match other than at the start of the -subject string. This is important if there are lookbehinds. The new man -page has the details, but you just want to convert existing programs, all -you need to do is to stick in a new fifth argument to pcre_exec(), with a -value of zero. For example, change - - pcre_exec(pattern, extra, subject, length, options, ovec, ovecsize) -to - pcre_exec(pattern, extra, subject, length, 0, options, ovec, ovecsize) - -**** |