version 3.4

* NEWS: Record release date.

.prev-version

@@ -1 +1 @@
-3.3.90
+3.3.91

.travis.yml

@@ -11,8 +11,56 @@ env:
     # See https://github.com/nemequ/icc-travis.
     secure: 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
 
-matrix:
+# Run in two steps:
+# 1. Build the tarball
+#    On a modern distro, with all the needed dependencies, including the whole git history.
+# 2. Check it on various environments.
+#    Less dependencies, and little git content (we would like to have none, but it's not
+#    an option on Travis).
+stages:
+  - compile
+  - test
+
+# matrix.include and jobs.include are aliases (https://docs.travis-ci.com/user/conditional-builds-stages-jobs/).
+jobs:
   include:
+    - stage: "compile"
+      dist: xenial
+      script:
+        - sudo apt-get update -qq
+        - sudo apt-get install -qq autoconf automake autopoint flex gettext graphviz help2man m4 texinfo
+        - autoconf --version
+        - automake --version
+        - autopoint --version
+        - dot -V
+        - gettext --version
+        - help2man --version
+        - makeinfo --version
+        - m4 --version
+        - git tag -l
+        # For some reasons, sometimes the checkout does not have any tags,
+        # so `git describe` fails, so bootstrap fails.
+        - git describe || git tag v3.0 -m "Fake version 3.0."
+        - git describe
+
+        # Appears to be needed for the following command (https://github.com/AppImage/AppImageKit/issues/511).
+        - git submodule sync
+        # Travis makes a shallow clone, but we need it in full to build the ChangeLog and apply the fixes in git-log-fix.
+        - git fetch --unshallow || true
+
+        - ./bootstrap
+        - if [[ -f ~/.bashrc ]]; then source ~/.bashrc; fi
+        - ./configure --enable-gcc-warnings CC="$CC" CXX="$CXX" $CONFIGUREFLAGS || { cat config.log && false; }
+        - make -j2
+        - make -j2 dist
+        - dist=$(echo bison*.xz)
+        # Unfortunately we cannot deterministically know the name of the tarball without the full
+        # git history (because git describe --abbrev=4 may use more than 4 characters if there are
+        # conflicts).  Besides, one day we would like not to depend on the repository at all in the
+        # 'test' jobs.  So also expose this tarball on a name that only depends on the Travis build
+        # number.
+        - sftp [email protected] <<< "put $dist"$'\n'"ln -s $dist bison-$TRAVIS_BUILD_NUMBER.tar.xz"
+
     ## ------- ##
     ## First.  ##
     ## ------- ##
@@ -21,6 +69,7 @@ matrix:
     # errors asap.
 
     - name: "GCC 7 -O3"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -33,8 +82,9 @@ matrix:
         - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7 && CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'"
 
     # ASAN is time consuming, and we timeout the 50min granted by
-    # Travis if we run all the tests in on go.  Run in two parts.
+    # Travis if we run all the tests in one go.  Run in two parts.
     - name: "Clang 7 libc++ and ASAN part 1"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -51,6 +101,7 @@ matrix:
         - MATRIX_EVAL="PART=1 CC='clang-7 -fsanitize=address' CXX='clang++-7 -fsanitize=address -stdlib=libc++'"
 
     - name: "Clang 7 libc++ and ASAN part 2"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -67,6 +118,7 @@ matrix:
         - MATRIX_EVAL="PART=2 CC='clang-7 -fsanitize=address' CXX='clang++-7 -fsanitize=address -stdlib=libc++'"
 
     - name: "ICC"
+      stage: test
       os: linux
       dist: xenial
       env:
@@ -100,6 +152,7 @@ matrix:
     #    - MATRIX_EVAL="CC='gcc-8 -fsanitize=undefined,address -fno-omit-frame-pointer' CXX='g++-8 -fsanitize=undefined,address -fno-omit-frame-pointer'"
 
     - name: "GCC 6"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -112,6 +165,7 @@ matrix:
         - MATRIX_EVAL="CC=gcc-6 && CXX=g++-6"
 
     - name: "GCC 5"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -124,6 +178,7 @@ matrix:
          - MATRIX_EVAL="CC=gcc-5 && CXX=g++-5"
 
     - name: "GCC 4.9"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -136,6 +191,7 @@ matrix:
          - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"
 
     - name: "GCC 4.8"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -148,6 +204,7 @@ matrix:
          - MATRIX_EVAL="CC=gcc-4.8 && CXX=g++-4.8"
 
     - name: "GCC 4.7"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -160,6 +217,7 @@ matrix:
          - MATRIX_EVAL="CC=gcc-4.7 && CXX=g++-4.7"
 
     - name: "GCC 4.6"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -176,6 +234,7 @@ matrix:
     ## ------- ##
 
     - name: "Clang 6 -O3 and libc++"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -191,6 +250,7 @@ matrix:
         - CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'
 
     - name: "Clang 5"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -204,6 +264,7 @@ matrix:
         - MATRIX_EVAL="CC='clang-5.0' CXX='clang++-5.0'"
 
     - name: "Clang 4"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -216,6 +277,7 @@ matrix:
         - MATRIX_EVAL="CC=clang-4.0 && CXX=clang++-4.0"
 
     - name: "Clang 3.9"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -228,6 +290,7 @@ matrix:
         - MATRIX_EVAL="CC=clang-3.9 && CXX=clang++-3.9"
 
     - name: "Clang 3.8"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -241,6 +304,7 @@ matrix:
         - MATRIX_EVAL="CC=clang-3.8 && CXX=clang++-3.8"
 
     - name: "CLang 3.7"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -254,6 +318,7 @@ matrix:
         - MATRIX_EVAL="CC=clang-3.7 && CXX=clang++-3.7"
 
     - name: "Clang 3.6"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -267,6 +332,7 @@ matrix:
         - MATRIX_EVAL="CC=clang-3.6 && CXX=clang++-3.6"
 
     - name: "Clang 3.5"
+      stage: test
       os: linux
       dist: xenial
       addons:
@@ -280,6 +346,7 @@ matrix:
         - MATRIX_EVAL="CC=clang-3.5 && CXX=clang++-3.5"
 
     - name: "Clang 3.4"
+      stage: test
       os: linux
       # Not available on Xenial.
       dist: trusty
@@ -290,9 +357,10 @@ matrix:
       env:
         # No versioned name installed, but beware that Travis installs
         # a more modern clang earlier in the default PATH.
-        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++ && GETTEXT_VERSION=0.18.3'
+        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++'
 
     - name: "Clang 3.3"
+      stage: test
       os: linux
       # Not available on Xenial.
       dist: trusty
@@ -302,50 +370,56 @@ matrix:
             - clang-3.3
       env:
         # See comment for 3.4.
-        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++ && GETTEXT_VERSION=0.18.3'
+        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++'
 
+## From https://docs.gitlab.com/ce/ci/ssh_keys/#ssh-keys-when-using-the-docker-executor.
+## Applies to Travis too.  Applied to all the 'script's (of all the jobs).
+before_script:
+  - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
+  - eval "$(ssh-agent -s)"
+  # $SSH_PRIVATE_KEY is multiline.  Use $'...' to register its value: $'-----BEGIN OPENSSH PRIVATE KEY-----\nXXXXX...\n...==\n-----END OPENSSH PRIVATE KEY-----'.
+  - echo "$SSH_PRIVATE_KEY" >/tmp/key.id_rsa
+  - chmod 600 /tmp/key.id_rsa
+  - ssh-add /tmp/key.id_rsa </dev/null
+  - mkdir -p ~/.ssh
+  - chmod 700 ~/.ssh
+  - echo '|1|bpc51UGxoDZjCPiwRlCStW32trI=|rfh6mLoLZv/vAvOVrpZXI1hTLxg= ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBIR+ckMoJTNXHvAQLHWSfrRnrNJGW2ZR6kr5pBVDGCkz1v1RcQ5rleq0NAt9kS3v4hgnuLiEVnK7KDRzcEH3ikc=' >>~/.ssh/known_hosts
+  - chmod 600 ~/.ssh/known_hosts
 
-before_install:
+# Applies only to the jobs that don't have a 'script', i.e., applies to all the 'test' jobs, but not the 'compile' one.
+script:
   - eval "$MATRIX_EVAL"
-  - env
+  # Beware not too leak $SSH_PRIVATE_KEY.
+  # - env
   - sudo apt-get update -qq
-  - sudo apt-get install -qq autoconf automake autopoint doxygen flex gettext graphviz help2man m4 texinfo
+  - sudo apt-get install -qq doxygen flex m4
+  # Install and activate ICC.
   - if [[ $CC == "icc" ]]; then build-aux/install-icc.sh; fi
   - if [[ -f ~/.bashrc ]]; then source ~/.bashrc; fi
-  # Install and activate dmd
+  # Install and activate dmd.
   - mkdir -p ~/dlang && wget https://dlang.org/install.sh -O ~/dlang/install.sh
   - source $(source ~/dlang/install.sh dmd -a)
-  - autoconf --version
+
-  - automake --version
-  - autopoint --version
   - $CC --version
   - $CXX --version
   - dmd --version
   - doxygen --version
   - flex --version
-  - gettext --version
-  - dot -V
-  - help2man --version
   - ld --version
   - m4 --version
-  - makeinfo --version
 
-script:
+  - if [[ -f ~/.bashrc ]]; then source ~/.bashrc; fi
-  - git tag -l
-  # For some reasons, sometimes the checkout does not have any tags,
-  # so `git describe` fails, so bootstrap fails.
-  - git describe || git tag v3.0 -m "Fake version 3.0."
-  - git describe
   # Unset this variable, otherwise, Java programs' stderr is cluttered
   # with `Picked up _JAVA_OPTIONS: -Xmx2048m -Xms512m`, which makes
   # the test suite fail.
   - unset _JAVA_OPTIONS
-  - if [[ $GETTEXT_VERSION ]]; then sed -i -re "s/(AM_GNU_GETTEXT_VERSION).*/\1([$GETTEXT_VERSION])/" configure.ac; fi
+  - sftp [email protected]:bison-$TRAVIS_BUILD_NUMBER.tar.xz
-  - ./bootstrap
+  - tar xf bison-$TRAVIS_BUILD_NUMBER.tar.xz
-  # For some reason, gnulib-po/Makefile.in.in is about Gettext 0.19, so it will break here.  Override it.
+  - dir=$(tar tf bison-$TRAVIS_BUILD_NUMBER.tar.xz | sed 1q)
-  - if [[ $GETTEXT_VERSION ]]; then autopoint --force; fi
+  - cd $dir
-  - if [[ -f ~/.bashrc ]]; then source ~/.bashrc; fi
+  - mkdir _build
-  - ./configure --enable-gcc-warnings CC="$CC" CXX="$CXX" $CONFIGUREFLAGS || { cat config.log && false; }
+  - cd _build
+  - ../configure --enable-gcc-warnings CC="$CC" CXX="$CXX" $CONFIGUREFLAGS || { cat config.log && false; }
   - make -j2 $MAKE_ARGS
   - if test ${PART-1} = 1; then make check                  VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat test-suite.log && cat tests/testsuite.log && false; }; fi
   - if test ${PART-1} = 1; then make maintainer-check-posix VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat tests/testsuite.log && false; }; fi

NEWS

@@ -1,21 +1,22 @@
 GNU Bison NEWS
 
-* Noteworthy changes in release 3.3.91 (2019-05-12) [beta]
+* Noteworthy changes in release 3.4 (2019-05-19) [stable]
 
-** Bug fixes
+** Deprecated features
 
-  Portability issues were fixed.
+  The %pure-parser directive is deprecated in favor of '%define api.pure'
-
+  since Bison 2.3b (2008-05-27), but no warning was issued; there is one
-* Noteworthy changes in release 3.3.90 (2019-04-28) [beta]
+  now.  Note that since Bison 2.7 you are strongly encouraged to use
+  '%define api.pure full' instead of '%define api.pure'.
 
 ** New features
 
 *** Colored diagnostics
 
-  As an experimental feature, Bison now generates colored diagnostics,
+  As an experimental feature, diagnostics are now colored, controlled by the
-  controlled by the new options --color and --style.
+  new options --color and --style.
 
-  Install the libtextstyle library before configuring Bison to use them.
+  To use them, install the libtextstyle library before configuring Bison.
   It is available from
 
     https://alpha.gnu.org/gnu/gettext/
@@ -31,12 +32,13 @@ GNU Bison NEWS
 
   To customize the styles, create a CSS file similar to
 
-    /* black-and-white.css */
+    /* bison-bw.css */
     .warning   { }
     .error     { font-weight: 800; text-decoration: underline; }
     .note      { }
 
-  then invoke bison with --style=black-and-white.css.
+  then invoke bison with --style=bison-bw.css, or set the BISON_STYLE
+  environment variable to "bison-bw.css".
 
 *** Disabling output
 
@@ -3620,7 +3622,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  LocalWords:  redeclaration sval fcaret reentrant XSLT xsl Wmaybe yyvsp Tedi
  LocalWords:  pragmas noreturn untyped Rozenman unexpanded Wojciech Polak
  LocalWords:  Alexandre MERCHANTABILITY yytype emplace ptr automove lvalues
- LocalWords:  nonterminal yy args Pragma dereference yyformat rhs docdir
+ LocalWords:  nonterminal yy args Pragma dereference yyformat rhs docdir bw
  LocalWords:  Redeclarations rpcalc Autoconf YFLAGS Makefiles PROG DECL num
  LocalWords:  Heimbigner AST src ast Makefile srcdir MinGW xxlex XXSTYPE
  LocalWords:  XXLTYPE strictfp IDEs ffixit fdiagnostics parseable fixits

THANKS

@@ -33,6 +33,7 @@ Bruce Lilly               [email protected]
 Bruno Haible              [email protected]
 Charles-Henri de Boysson  [email protected]
 Christian Burger          [email protected]
+Clément Démoulins         [email protected]
 Colin Daley               [email protected]
 Cris Bailiff              [email protected]
 Cris van Pelt             [email protected]
@@ -178,6 +179,7 @@ Tom Tromey                [email protected]
 Tommy Nordgren            [email protected]
 Troy A. Johnson           [email protected]
 Tys Lefering              [email protected]
+Uxio Prego                [email protected]
 Valentin Tolmer           [email protected]
 wcventure                 [email protected]
 Victor Khomenko           [email protected]

data/bison-default.css

@@ -0,0 +1,24 @@
+/* Default styling rules for Bison when doing terminal output.
+   Copyright (C) 2019 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* This is an experimental feature.  The class names may change in the
+   future.  */
+
+.warning   { color: purple; }
+.error     { color: red; }
+.note      { color: cyan; }
+/* Semantic values in Bison's own parser traces.  */
+.value     { color: green; }

data/diagnostics.css

@@ -1,10 +0,0 @@
-/* CSS style for Bison's diagnostics.
-
-   This is an experimental feature.  The class names may change in the
-   future.  */
-
-.warning   { color: purple; }
-.error     { color: red; }
-.note      { color: cyan; }
-/* Semantic values in Bison's parser traces.  */
-.value     { color: green; }

data/local.mk

@@ -16,7 +16,7 @@
 
 dist_pkgdata_DATA =                             \
   data/README.md                                \
-  data/diagnostics.css
+  data/bison-default.css
 
 skeletonsdir = $(pkgdatadir)/skeletons
 dist_skeletons_DATA =                           \

data/skeletons/lalr1.cc

@@ -218,7 +218,7 @@ m4_define([b4_shared_declarations],
 ]b4_token_constructor_define[
 
   private:
-    /// This class is not copyable.
+    /// This class is not copiable.
     ]b4_parser_class[ (const ]b4_parser_class[&);
     ]b4_parser_class[& operator= (const ]b4_parser_class[&);
 

doc/bison.texi

@@ -11568,7 +11568,7 @@ Instead of using the built-in types you may use the @code{%define} variable
 The requirements over your @var{LocationType} are:
 @itemize
 @item
-it must be copyable;
+it must be copiable;
 
 @item
 in order to compute the (default) value of @code{@@$} in a reduction, the
@@ -11578,7 +11578,7 @@ parser basically runs
 @@$.end   = @@@var{N}.end; // The location of last right-hand side symbol.
 @end example
 @noindent
-so there must be copyable @code{begin} and @code{end} members;
+so there must be copiable @code{begin} and @code{end} members;
 
 @item
 alternatively you may redefine the computation of the default location, in
@@ -12416,8 +12416,8 @@ You can create documentation for generated parsers using Javadoc.
 
 Contrary to C parsers, Java parsers do not use global variables; the state
 of the parser is always local to an instance of the parser class.
-Therefore, all Java parsers are ``pure'', and the @code{%pure-parser} and
+Therefore, all Java parsers are ``pure'', and the @code{%define api.pure}
-@code{%define api.pure} directives do nothing when used in Java.
+directive does nothing when used in Java.
 
 Push parsers are currently unsupported in Java and @code{%define
 api.push-pull} have no effect.
@@ -14473,7 +14473,7 @@ London, Department of Computer Science, TR-00-12 (December 2000).
 @c LocalWords: YYENABLE bindtextdomain Makefile DEFS CPPFLAGS DBISON DeRemer
 @c LocalWords: autoreconf Pennello multisets nondeterminism Generalised baz ACM
 @c LocalWords: redeclare automata Dparse localedir datadir XSLT midrule Wno
-@c LocalWords: multitable headitem hh basename Doxygen fno filename
+@c LocalWords: multitable headitem hh basename Doxygen fno filename gdef
 @c LocalWords: doxygen ival sval deftypemethod deallocate pos deftypemethodx
 @c LocalWords: Ctor defcv defcvx arg accessors arithmetics CPP ifndef CALCXX
 @c LocalWords: lexer's calcxx bool LPAREN RPAREN deallocation cerrno climits
@@ -14494,14 +14494,17 @@ London, Department of Computer Science, TR-00-12 (December 2000).
 @c LocalWords: errorVerbose subtype subtypes Wmidrule midrule's src rvalues
 @c LocalWords: automove evolutions Wother Wconflicts PNG lookaheads Acc sep
 @c LocalWords: xsltproc XSL xsl xhtml html num Wprecedence Werror fcaret gv
-@c LocalWords: fdiagnostics setlocale nullptr ast srcdir copyable iff drv
+@c LocalWords: fdiagnostics setlocale nullptr ast srcdir iff drv rgbWarning
 @c LocalWords: deftypefunx pragma Wnull dereference Wdocumentation elif ish
 @c LocalWords: Wdeprecated Wregister noinput yyloc yypos PODs sstream Wsign
 @c LocalWords: typename emplace Wconversion Wshorten yacchack reentrancy
-@c LocalWords: Relocatability exprs fixit Wyacc parseable fixits ffixit
+@c LocalWords: Relocatability exprs fixit Wyacc parseable fixits ffixit svg
 @c LocalWords: DNDEBUG cstring Wzero workalike POPL workalikes byacc UCB
 @c LocalWords: Penello's Penello Byson Byson's Corbett's CSD TOPLAS PDP
-@c LocalWords: Beazley's goyacc ocamlyacc SIGACT SIGPLAN
+@c LocalWords: Beazley's goyacc ocamlyacc SIGACT SIGPLAN colorWarning
+@c LocalWords: setcolor rgbError colorError rgbNotice colorNotice derror
+@c LocalWords: colorOff maincolor inlineraw darkviolet darkcyan dwarning
+@c LocalWords: dnotice copiable
 
 @c Local Variables:
 @c ispell-dictionary: "american"

examples/c/reccalc/local.mk

@@ -41,7 +41,7 @@ DASH = -
 	$(AM_V_LEX)rm -f $@ $@.tmp
 	$(AM_V_at)$(MKDIR_P) %D%
 	$(AM_V_at)touch $@.tmp
-	$(AM_V_at) $(LEX) -o %D%/scan.c --header-file=%D%/scan.h $<
+	$(AM_V_at)$(LEX) -o%D%/scan.c --header-file=%D%/scan.h $(srcdir)/%D%/scan.l
 	$(AM_V_at)mv $@.tmp $@
 
 # Don't use gnulib's system headers.

examples/d/local.mk

@@ -27,10 +27,10 @@ EXTRA_DIST += %D%/calc.test
 
 %D%/calc.d: %D%/calc.y $(dependencies)
 	$(AM_V_GEN)$(MKDIR_P) %D%
-	$(AM_V_at)$(BISON) $< -o $@
+	$(AM_V_at)$(BISON) $(srcdir)/%D%/calc.y -o $@
 
 %D%/calc: %D%/calc.d
-	$(AM_V_GEN) $(DC) $(DCFLAGS) -of$@ $<
+	$(AM_V_GEN) $(DC) $(DCFLAGS) -of$@ %D%/calc.d
 
 dist_d_DATA = %D%/calc.y %D%/Makefile %D%/README.md
 CLEANFILES += %D%/calc %D%/calc.[do]

examples/java/local.mk

@@ -27,10 +27,10 @@ EXTRA_DIST += %D%/Calc.test
 
 %D%/Calc.java: %D%/Calc.y $(dependencies)
 	$(AM_V_GEN)$(MKDIR_P) %D%
-	$(AM_V_at)$(BISON) $< -o $@
+	$(AM_V_at)$(BISON) $(srcdir)/%D%/Calc.y -o $@
 
 %D%/Calc.class: %D%/Calc.java
-	$(AM_V_GEN) $(SHELL) $(top_builddir)/javacomp.sh $<
+	$(AM_V_GEN) $(SHELL) $(top_builddir)/javacomp.sh %D%/Calc.java
 
 dist_java_DATA = %D%/Calc.y %D%/Makefile %D%/README.md
 CLEANFILES += %D%/*.class %D%/Calc.java

src/complain.c

@@ -255,14 +255,13 @@ complain_init_color (void)
       || color_mode == color_html
       || (color_mode == color_tty && isatty (STDERR_FILENO)))
     {
-      style_file_prepare ("BISON_DIAGNOSTICS_STYLE", NULL,
+      style_file_prepare ("BISON_STYLE", NULL, pkgdatadir (),
-                          pkgdatadir (),
+                          "bison-default.css");
-                          "diagnostics.css");
       /* As a fallback, use the default in the current directory.  */
       struct stat statbuf;
       if ((style_file_name == NULL || stat (style_file_name, &statbuf) < 0)
-          && stat ("diagnostics.css", &statbuf) == 0)
+          && stat ("bison-default.css", &statbuf) == 0)
-        style_file_name = "diagnostics.css";
+        style_file_name = "bison-default.css";
     }
   else
     /* No styling.  */

src/parse-gram.h

@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 3.3.2.153-f5a4-dirty.  */
+/* A Bison parser, made by GNU Bison 3.4.  */
 
 /* Bison interface for Yacc-like parsers in C
 
@@ -108,32 +108,33 @@ extern int gram_debug;
     PERCENT_NO_LINES = 285,
     PERCENT_NONDETERMINISTIC_PARSER = 286,
     PERCENT_OUTPUT = 287,
-    PERCENT_REQUIRE = 288,
+    PERCENT_PURE_PARSER = 288,
-    PERCENT_SKELETON = 289,
+    PERCENT_REQUIRE = 289,
-    PERCENT_START = 290,
+    PERCENT_SKELETON = 290,
-    PERCENT_TOKEN_TABLE = 291,
+    PERCENT_START = 291,
-    PERCENT_VERBOSE = 292,
+    PERCENT_TOKEN_TABLE = 292,
-    PERCENT_YACC = 293,
+    PERCENT_VERBOSE = 293,
-    BRACED_CODE = 294,
+    PERCENT_YACC = 294,
-    BRACED_PREDICATE = 295,
+    BRACED_CODE = 295,
-    BRACKETED_ID = 296,
+    BRACED_PREDICATE = 296,
-    CHAR = 297,
+    BRACKETED_ID = 297,
-    COLON = 298,
+    CHAR = 298,
-    EPILOGUE = 299,
+    COLON = 299,
-    EQUAL = 300,
+    EPILOGUE = 300,
-    ID = 301,
+    EQUAL = 301,
-    ID_COLON = 302,
+    ID = 302,
-    PERCENT_PERCENT = 303,
+    ID_COLON = 303,
-    PIPE = 304,
+    PERCENT_PERCENT = 304,
-    PROLOGUE = 305,
+    PIPE = 305,
-    SEMICOLON = 306,
+    PROLOGUE = 306,
-    TAG = 307,
+    SEMICOLON = 307,
-    TAG_ANY = 308,
+    TAG = 308,
-    TAG_NONE = 309,
+    TAG_ANY = 309,
-    INT = 310,
+    TAG_NONE = 310,
-    PERCENT_PARAM = 311,
+    INT = 311,
-    PERCENT_UNION = 312,
+    PERCENT_PARAM = 312,
-    PERCENT_EMPTY = 313
+    PERCENT_UNION = 313,
+    PERCENT_EMPTY = 314
   };
 #endif
 
@@ -159,9 +160,9 @@ union GRAM_STYPE
   /* "integer"  */
   int INT;
   /* int.opt  */
-  int yytype_80;
+  int yytype_81;
   /* named_ref.opt  */
-  named_ref* yytype_92;
+  named_ref* yytype_93;
   /* "%param"  */
   param_type PERCENT_PARAM;
   /* token_decl  */
@@ -177,7 +178,7 @@ union GRAM_STYPE
   /* string_as_id  */
   symbol* string_as_id;
   /* string_as_id.opt  */
-  symbol* yytype_99;
+  symbol* yytype_100;
   /* generic_symlist  */
   symbol_list* generic_symlist;
   /* generic_symlist_item  */
@@ -187,15 +188,15 @@ union GRAM_STYPE
   /* token_decls  */
   symbol_list* token_decls;
   /* token_decl.1  */
-  symbol_list* yytype_78;
+  symbol_list* yytype_79;
   /* token_decls_for_prec  */
   symbol_list* token_decls_for_prec;
   /* token_decl_for_prec.1  */
-  symbol_list* yytype_82;
+  symbol_list* yytype_83;
   /* symbol_decls  */
   symbol_list* symbol_decls;
   /* symbol_decl.1  */
-  symbol_list* yytype_85;
+  symbol_list* yytype_86;
   /* "%error-verbose"  */
   uniqstr PERCENT_ERROR_VERBOSE;
   /* "%<flag>"  */
@@ -204,6 +205,8 @@ union GRAM_STYPE
   uniqstr PERCENT_FILE_PREFIX;
   /* "%name-prefix"  */
   uniqstr PERCENT_NAME_PREFIX;
+  /* "%pure-parser"  */
+  uniqstr PERCENT_PURE_PARSER;
   /* "%yacc"  */
   uniqstr PERCENT_YACC;
   /* "[identifier]"  */
@@ -215,7 +218,7 @@ union GRAM_STYPE
   /* "<tag>"  */
   uniqstr TAG;
   /* tag.opt  */
-  uniqstr yytype_72;
+  uniqstr yytype_73;
   /* tag  */
   uniqstr tag;
   /* variable  */

src/parse-gram.y

@@ -94,6 +94,9 @@
   static void handle_name_prefix (location const *loc,
                                   char const *directive, char const *value);
 
+  /* Handle a %pure-parser directive.  */
+  static void handle_pure_parser (location const *loc, char const *directive);
+
   /* Handle a %require directive.  */
   static void handle_require (location const *loc, char const *version);
 
@@ -181,6 +184,7 @@
   PERCENT_NONDETERMINISTIC_PARSER
                           "%nondeterministic-parser"
   PERCENT_OUTPUT          "%output"
+  PERCENT_PURE_PARSER     "%pure-parser"
   PERCENT_REQUIRE         "%require"
   PERCENT_SKELETON        "%skeleton"
   PERCENT_START           "%start"
@@ -219,7 +223,7 @@
 %type <uniqstr>
   BRACKETED_ID ID ID_COLON
   PERCENT_ERROR_VERBOSE PERCENT_FILE_PREFIX PERCENT_FLAG PERCENT_NAME_PREFIX
-  PERCENT_YACC
+  PERCENT_PURE_PARSER PERCENT_YACC
   TAG tag tag.opt variable
 %printer { fputs ($$, yyo); } <uniqstr>
 %printer { fprintf (yyo, "[%s]", $$); } BRACKETED_ID
@@ -343,6 +347,7 @@ prologue_declaration:
 | "%nondeterministic-parser"    { nondeterministic_parser = true; }
 | "%output" STRING              { spec_outfile = $2; }
 | "%param" { current_param = $1; } params { current_param = param_none; }
+| "%pure-parser"                { handle_pure_parser (&@$, $1); }
 | "%require" STRING             { handle_require (&@2, $2); }
 | "%skeleton" STRING            { handle_skeleton (&@2, $2); }
 | "%token-table"                { token_table_flag = true; }
@@ -910,6 +915,7 @@ handle_file_prefix (location const *loc,
     deprecated_directive (dir_loc, directive, "%file-prefix");
 }
 
+
 static void
 handle_name_prefix (location const *loc,
                     char const *directive, char const *value)
@@ -944,6 +950,16 @@ handle_name_prefix (location const *loc,
 }
 
 
+static void
+handle_pure_parser (location const *loc, char const *directive)
+{
+  bison_directive (loc, directive);
+  deprecated_directive (loc, directive, "%define api.pure");
+  muscle_percent_define_insert ("api.pure", *loc, muscle_keyword, "",
+                                MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE);
+}
+
+
 static void
 handle_require (location const *loc, char const *version)
 {
@@ -1006,6 +1022,7 @@ handle_skeleton (location const *loc, char const *skel)
   skeleton_arg (skeleton_user, grammar_prio, *loc);
 }
 
+
 static void
 handle_yacc (location const *loc, char const *directive)
 {
@@ -1026,6 +1043,7 @@ handle_yacc (location const *loc, char const *directive)
     deprecated_directive (loc, directive, "%fixed-output-files");
 }
 
+
 static void
 gram_error (location const *loc, char const *msg)
 {

src/scan-gram.l

@@ -252,7 +252,6 @@ eqopt    ({sp}=)?
   "%prec"                           return PERCENT_PREC;
   "%precedence"                     return BISON_DIRECTIVE (PRECEDENCE);
   "%printer"                        return BISON_DIRECTIVE (PRINTER);
-  "%pure-parser"                    RETURN_PERCENT_FLAG ("api.pure");
   "%require"                        return BISON_DIRECTIVE (REQUIRE);
   "%right"                          return PERCENT_RIGHT;
   "%skeleton"                       return BISON_DIRECTIVE (SKELETON);
@@ -265,6 +264,10 @@ eqopt    ({sp}=)?
   "%verbose"                        return BISON_DIRECTIVE (VERBOSE);
   "%yacc"                           RETURN_VALUE (PERCENT_YACC, uniqstr_new (yytext));
 
+  /* Deprecated since Bison 2.3b (2008-05-27), but the warning is
+     issued only since Bison 3.4. */
+  "%pure"[-_]"parser"               RETURN_VALUE (PERCENT_PURE_PARSER, uniqstr_new (yytext));
+
   /* Deprecated since Bison 3.0 (2013-07-25), but the warning is
      issued only since Bison 3.3. */
   "%error-verbose"                  RETURN_VALUE (PERCENT_ERROR_VERBOSE, uniqstr_new (yytext));
@@ -282,7 +285,6 @@ eqopt    ({sp}=)?
   "%no"[-_]"default"[-_]"prec"      DEPRECATED ("%no-default-prec");
   "%no"[-_]"lines"                  DEPRECATED ("%no-lines");
   "%output"{eqopt}                  DEPRECATED ("%output");
-  "%pure"[-_]"parser"               DEPRECATED ("%pure-parser");
   "%token"[-_]"table"               DEPRECATED ("%token-table");
 
   "%"{id} {

tests/actions.at

@@ -1870,7 +1870,7 @@ AT_DATA_GRAMMAR([input.y],
 [[
 %define parse.error verbose
 %debug
-%pure-parser
+%define api.pure
 %code {
 # include <stdio.h>
 # include <stdlib.h>

tests/input.at

@@ -2556,8 +2556,8 @@ input.y:23.1-9: warning: deprecated directive: '%no_lines', use '%no-lines' [-Wd
 fix-it:"input.y":{23:1-23:10}:"%no-lines"
 input.y:24.1-9: warning: deprecated directive: '%output =', use '%output' [-Wdeprecated]
 fix-it:"input.y":{24:1-24:10}:"%output"
-input.y:25.1-12: warning: deprecated directive: '%pure_parser', use '%pure-parser' [-Wdeprecated]
+input.y:25.1-12: warning: deprecated directive: '%pure_parser', use '%define api.pure' [-Wdeprecated]
-fix-it:"input.y":{25:1-25:13}:"%pure-parser"
+fix-it:"input.y":{25:1-25:13}:"%define api.pure"
 input.y:26.1-12: warning: deprecated directive: '%token_table', use '%token-table' [-Wdeprecated]
 fix-it:"input.y":{26:1-26:13}:"%token-table"
 input.y:27.1-14: warning: %define variable 'parse.error' redefined [-Wother]
@@ -2603,7 +2603,7 @@ AT_CHECK([sed -e '1,8d' input.y], [],
 %no-default-prec
 %no-lines
 %output "output.c"
-%pure-parser
+%define api.pure
 %token-table
 %glr-parser
 %%
@@ -2678,7 +2678,6 @@ AT_DATA_GRAMMAR([[input.y]],
 %no-default-prec
 %no-lines
 %output "foo"
-%pure-parser
 %token-table
 %% exp : '0'
 ]])

tests/synclines.at

@@ -90,7 +90,17 @@ m4_define([_AT_SYNCLINES_COMPILE],
 #    syncline.c:4:2: error: #error "4"
 #     #error "4"
 #      ^~~~~
+#
+# GCC 9 displays a left-hand margin with the line number:
+#
+#    syncline.c: In function 'foo':
+#    syncline.c:4:2: error: #error "4"
+#        4 | #error "4"
+#          |  ^~~~~
 AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
+  # Remove left-hand margin.
+  s/^[\d ]{6}\| //gm;
+
   # 1. Remove useless lines.
 
   # distcc clutter.