grep annotated tag, v2.19, created. v2.19

[Jim Meyering]

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The annotated tag, v2.19 has been created
        at  5dd36a3d9bd9bbe1bc46b1c7dff7d60f20befd0d (tag)
   tagging  3c3bc4a2aa4d81fe171a68a9c5ed9352cf89863c (commit)
  replaces  v2.18
 tagged by  Jim Meyering
        on  Thu May 22 21:04:37 2014 -0700

- Log -----------------------------------------------------------------
grep 2.19
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Jim Meyering (22):
      maint: post-release administrivia
      maint: dfa: pass NULL, not 0, as 2nd arg to setlocale
      tests: make a performance-measuring test less system-sensitive
      tests: avoid false-positive failure on some AMD CPUs
      maint: fix "make dist"
      tests: placate "make syntax-check" re compare arg ordering
      build: avoid OS X 10.8.5 build failure due to lack of static_assert
      maint: avoid sc_po_check syntax-check failure (kwset.c)
      tests: detect an infloop-inducing bug in grep -P (pcre-8.35)
      dfa: avoid new NULL dereference
      maint: Revert "dfa: avoid new NULL dereference"
      build: reenable some compiler warning options
      tests: use consistent spelling for locale name, en_US.UTF-8
      grep: fix new heap write buffer overrun
      gnulib: update to latest
      maint: make ChangeLog generation more robust
      maint: mark some breakless cases with /* fallthrough */ comment
      gnulib: update submodule to latest, and bootstrap
      maint: NEWS: move "Improvements" to the top
      maint: NEWS: adjust wording to reflect move
      maint: avoid new false-positive syntax-check failure
      version 2.19

Norihiro Tanaka (35):
      grep: don't match line-by-line for case-insensitive with grep and awk
      grep: remove trivial_case_ignore
      grep: optimization of bracket expression for non-UTF8 locales
      grep: revert removal of trivial_case_ignore
      grep: avoid to add same character to a bracket expression
      grep: optimization for fgrep with changing the macher to grep macher.
      grep: perform the kwset-helping DFA match in narrower range
      grep: take mbrtowc_cache into new member of struct dfa
      dfa: avoid re-building a state built previously
      grep: reuse multibyte DFA buffers in non-UTF8 locales
      grep: fix performance bug with regex in line-by-line mode
      grep: optimization with the superset of DFA
      grep: use the Galil rule for Boyer-Moore algorithm in KWSet
      grep: prefer regex to DFA for ANYCHAR in multibyte locales
      grep: no match for the empty string included in multiple patterns
      grep: open CSET and transform into uppercase when MB_CUR_MAX == 1
      dfa: speed up by checking multibyte characters on demand
      grep: speed-up for exact matching with begline and endline constraints.
      grep: may also use Boyer-Moore algorithm for case-insensitive matching
      grep: speed-up by using memchr() in Boyer-Moore searching
      grep: avoid wasting memory for large patterns in dfamust
      grep: skip checking of multibyte character boundary, reaching at eolbyte
      grep: speed up for a case to repeat failure in DFA after success in kwset
      kwset: improve performance by inlining tr
      dfa: optimize memory allocation
      grep: simplify superset
      grep: adjust timing back to kwset when dfaisfast is true
      grep: fix the bug in previous patch.
      grep: make KWset and DFA agree about invalid sequences in patterns
      dfa: speed up 'dfaisfast'
      grep: improve performance of -v when combined with -L, -l or -q
      dfa: fix inconsistency in multibyte locales
      grep: retry DFA superset after matching multiple lines
      grep: do not count newline before the start of buffer
      tests: add test case for newline-count fix

Paul Eggert (93):
      grep: fix multiple bugs with bracket expressions
      * src/dfa.c (parse_bracket_exp): Parenthesize.
      * src/dfa.c (prednames): POSIX allows [[:xdigit:]] to match multibyte 
chars.
      grep: remove lint
      grep: fix bugs with -i and titlecase
      grep: avoid 'inline' when it doesn't matter
      grep: minor tuning for mb_case_map_apply
      doc: describe titlecase fix better
      grep: fix some unlikely bugs in trivial_case_ignore
      grep: fix comment
      maint: remove differences from gnulib regex code
      doc: do not overpromise --ignore-case's behavior
      build: update gnulib submodule to latest
      grep: fix case-fold mismatches between DFA and regex
      fgrep: fix case-fold incompatibility with plain 'grep'
      maint: pacify 'make dist'
      dfa: port to freestanding DJGPP (Bug#17056)
      egrep, fgrep: go back to shell scripts
      grep: fix and simplify grep -iF optimization
      dfa: avoid undefined behavior
      egrep, fgrep: improve diagnostics from shell scripts
      dfa: improve port to freestanding DJGPP
      dfa: cache results of mbrtowc for speed
      dfa: avoid an indirection and port wint_t usage
      dfa: improve port to freestanding DJGPP
      grep: simplify dfa.c by having it not include mbsupport.h directly
      grep: minor improvements to previous patch
      grep: cleanup DFA superset optimization
      grep: minor cleanups for Galil speedups
      grep: simplify memory allocation in kwset
      grep: remove trival_case_ignore
      grep: prefer bool in DFA internals
      grep: port better to hosts with nonstandard nl_langinfo
      grep: remove bool_bf
      grep: cleanup for empty-string fix
      grep: cleanup for HAS_DOS_FILE_CONTENTS issue
      grep: improvements for the open-CSET patch
      build: update gnulib submodule to latest
      dfa: clarify memory allocation and port to IRIX
      dfa: avoid unnecessary work and other initialization
      dfa: better size-overflow check
      dfa: simplify transition table allocation
      dfa: simplify range char allocation
      dfa: simplify multibyte_prop allocation
      dfa: simplify position set and element count allocation
      dfa: simplify memory allocation
      dfa: avoid duplicate strlen when allocating memory
      dfa: simplify freelist
      dfa: simplify dfmust initialization
      dfa: trans reallocation microoptimization
      dfa: minor cleanup
      dfa: fix pointer type conversion bug
      dfa: fix bug that caused NUL to be mishandled in patterns
      dfa: minor improvements to previous patch
      grep: -P now rejects invalid input sequences in UTF-8 locales
      kwset: simplify Boyer-Moore with unibyte -i
      kwset: simplify and speed up Boyer-Moore unibyte -i in some cases
      dfa: omit static variables that limited dfaexec to one struct dfa
      dfa: fix memory leak reintroduced by previous patch
      build: suppress unsafe-loop-optimizations warnings
      dfa: minor tuneup of dfamust memory savings patch
      dfa: fix incorrect comment that led to heap overrun
      dfa: simplify and be more consistent about MB_CUR_MAX
      dfa: minor simplification of dfaexec
      misc: fix doc and test bugs re grep -z
      dfa: fix recently-introduced memory leak
      dfa: fix index bug in previous patch, and simplify
      kwset: improve performance when large Boyer-Moore key doesn't match
      kwset: speed up by using memchr2
      kwset: improve performance by inlining more
      grep: simplify EGexecute further
      grep: clarify EGexecute slightly
      tests: improve coverage for prefix-of-multibyte
      grep: simplify and fix problems with KWset-DFA agreement patch
      dfa: minor simplification
      grep: fix encoding-error incompatibilities among regex, DFA, KWset
      grep: improve internal API for multibyte boundary
      grep: fix -w match next to a multibyte letter
      dfa: minor performance improvement for previous change
      dfa: clarify use of "if"
      doc: mention performance changes
      grep: simplify and clarify invert-related code
      maint: fix indenting to pacify 'prohibit_tab_based_indentation'
      dfa: don't assume unsigned int is exactly 32 bits wide
      dfa: assume C89 for CHAR_BIT
      grep: minor improvements to retry-DFA-superset patch
      grep: -A 0, -B 0, -C 0 now output a separator
      tests: add test case for -C 0 change
      dfa: fix bug with \< etc in multibyte locales
      dfa: omit double includes
      egrep, fgrep: port to Solaris 10 /bin/sh
      tests: port mb-non-UTF8-performance to RHEL 6.5
      grep: port mb_next_wc to RHEL 6.5 x86-64

Stephane Chazelas (2):
      grep -P: fix it so backreferences now work with -w and -x
      align grep -Pw with grep -w

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