+2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Deprecate %pure-parser and add `%define api.pure'. Discussed starting
+ at
+ <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
+ * NEWS (2.3a+): Mention.
+ * data/bison.m4 (b4_pure_if): Don't define it here.
+ * data/c.m4 (b4_identification): Depend on individual skeletons to
+ define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
+ values of the %define variables api.pure or api.push_pull. Define
+ YYPURE, YYPUSH, and YYPULL accordingly.
+ * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
+ glr.cc has already defined b4_pure_flag.
+ * data/push.c: Define b4_pure_if based on `%define api.pure'.
+ Remove YYPUSH and YYPULL since they're back in b4_identification again.
+ * data/yacc.c Define b4_pure_if based on `%define api.pure'.
+ * doc/bison.texinfo (Pure Decl): Update.
+ (Push Decl): Update.
+ (Decl Summary): Add api.pure to %define entry.
+ In %pure-parser entry, say it's deprecated and reference %define.
+ (Pure Calling): Update.
+ (Error Reporting): Update.
+ (C++ Scanner Interface): Update.
+ (How Can I Reset the Parser): Update.
+ (Table of Symbols): In %pure-parser entry, say it's deprecated and
+ reference %define.
+ * src/getargs.c (pure_parser): Remove global variable.
+ * src/getargs.h (pure_parser): Remove extern.
+ * src/output.c (prepare): Don't define pure_flag muscle.
+ * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
+ wrapper around `%define api.pure'.
+ * tests/calc.at (Simple LALR Calculator): Update.
+ (Simple GLR Calculator): Update.
+ * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
+ Update.
+ (GLR: Resolve ambiguity, pure, locations): Update.
+ (GLR: Merge conflicting parses, pure, no locations): Update.
+ (GLR: Merge conflicting parses, pure, locations): Update.
+ * tests/glr-regression.at (Uninitialized location when reporting
+ ambiguity): Update
+ * tests/input.at (Unused %define api.pure): New test case.
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
+ AT_PURE_IF and AT_PURE_AND_LOC_IF.
+ * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
+
+2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ %define push_pull -> %define api.push_pull. Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
+ * data/push.c: Expect the new name.
+ * data/yacc.c: Likewise.
+ * doc/bison.texinfo (Push Decl): Update.
+ (Decl Summary): Update %define entry.
+ (Push Parser Function): Update.
+ (Pull Parser Function): Update.
+ (Parser Create Function): Update.
+ (Parser Delete Function): Update.
+ * tests/calc.at (Simple LALR Calculator): Update.
+ * tests/input.at (%define enum variables): Update.
+ * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
+ (Push Parsing: Multiple impure instances): Update.
+ (Push Parsing: Unsupported Skeletons): Update.
+ * tests/torture.at (Exploding the Stack Size with Alloca): Update.
+ (Exploding the Stack Size with Malloc): Update.
+
+ * NEWS (2.3a+): Add an entry for the push parser, and clean up the
+ other entries some.
+
+2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ For the XML output's terminal element, rename @number to @token-number,
+ and add @symbol-number. In the nonterminal element, rename @number to
+ @symbol-number. Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
+ * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
+ renames.
+ (xsl:template match="nonterminal"): Likewise.
+ * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
+ (xsl:template match="nonterminal"): Likewise.
+ * src/print-xml.c (print_grammar): Implement.
+
+2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
+ 2007-10-11 change, the child elements here are items not rules.
+ (<xsl:template match="item"): New.
+ (xsl:template match="rule"): Update for new reduced itemset.
+ (xsl:template match="point"): Remove.
+ (xsl:template match="empty"): For consistency with --graph, don't
+ output "/* empty */".
+ * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
+ line-wrap, don't pass a negative value as first-line-length since this
+ won't work with the following changes.
+ (xsl:template name="line-wrap"): Simplify slightly.
+ (xsl:template name="ws-search"): Eliminate recursion.
+ * src/print_graph.c (print_core): Don't print a reduction's lookahead
+ set next to an item whose dot is not at the end of the RHS even if it
+ happens to be associated with the same rule.
+
+2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Add %define lr.keep_unreachable_states.
+ * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
+ * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
+ * src/main.c (main): Implement it.
+ * tests/conflicts.at (Unreachable States After Conflict Resolution):
+ Extend to test it, and fix a typo.
+
+2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
+ * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
+ the example .output text.
+ * tests/regression.at (Extra lookahead sets in report): Improve wording
+ of comments.
+
+2007-10-17 Wojciech Polak <polak@gnu.org>
+
+ * src/print-xml.c (print_grammar): Renamed
+ <terminal> and <nonterminal> attributes:
+ "type" to "number" and "symbol" to "name".
+ * data/xslt/xml2text.xsl (xsl:template match="terminal"):
+ Use new attribute names.
+ (xsl:template match="nonterminal"): Likewise.
+ * data/xslt/xml2xhtml.xsl: Likewise.
+
+2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
+ (Option Cross Key): Likewise.
+
+ * src/print-xml.c (print_core): Don't print a reduction's lookahead set
+ next to an item whose dot is not at the end of the RHS even if it
+ happens to be associated with the same rule.
+ * src/print.c (print_core): Likewise.
+ * tests/conflicts.at (Unresolved SR Conflicts): Update output.
+ (Resolved SR Conflicts): Update output.
+ * tests/regression.at (Extra lookahead sets in report): New test case.
+
+2007-10-11 Wojciech Polak <polak@gnu.org>
+
+ * src/print-xml.c (print_core): Remove item set
+ redundancy.
+ * data/xslt/bison.xsl (bison:ruleNumber): New key.
+ Improve processing time. Suggested by Joel E. Denny.
+ * data/xslt/xml2dot.xsl (xsl:template name="escape"):
+ Write xsl:param "required" attribute as comment.
+ * data/xslt/xml2text.xsl (xsl:template match="item"): New.
+ (xsl:template match="rule"): Support new reduced itemset.
+ (xsl:template match="point"): Remove.
+ * data/xslt/xml2xhtml.xsl: Likewise.
+
+2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/getargs.c (version): Update copyright year.
+
+2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Make xml2dot.xsl and --graph produce the same output.
+ * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a ` '
+ instead of a `\n'. That is, don't add escapes yet or they'll be doubly
+ escaped later.
+ (xsl:template name="output-node"): Use the new escape template instead
+ of the string-replace template directly.
+ (xsl:template name="output-edge"): Likewise.
+ (xsl:template name="escape"): New, escapes backslashes and newlines in
+ addition to quotation marks.
+ * src/graphviz.c (start_graph, output_node, output_edge): Add
+ whitespace to output for legibility.
+
+ Make xml2text.xsl and --report produce the same output, and remove the
+ XML "conflicts" element since a conflict summary is easily extracted
+ from the automaton.
+ * data/xslt/bison.xsl: New.
+ (xsl:template match="state" mode="bison:count-conflicts): New.
+ * data/xslt/xml2text.xsl: Import bison.xsl.
+ (xsl:template match="bison-xml-report"): Instead of styling the
+ "conflicts" element, style the "automaton" element with mode
+ "conflicts". Unlike the former, the latter lists S/R and R/R
+ conflicts for a state on the same line.
+ (xsl:template match="conflicts"): Remove.
+ (xsl:template match="conflict"): Remove.
+ (xsl:template match="terminal"): Line-wrap the list of rules in which
+ the terminal is used.
+ (xsl:template match="nonterminal"): Likewise for nonterminals.
+ (xsl:template match="automaton" mode="conflicts"): New.
+ (xsl:template match="state" mode="conflicts"): New.
+ (xsl:template name="line-wrap"): New.
+ (xsl:template name="ws-search"): New.
+ * data/xslt/xml2xhtml.xsl: Import bison.xsl.
+ (xsl:template match="bison-xml-report"): Instead of styling the
+ "conflicts" element, style the "automaton" element with mode
+ "conflicts."
+ (xsl:template match="conflicts"): Remove.
+ (xsl:template match="conflict"): Remove.
+ (xsl:template match="automaton" mode="conflicts"): New.
+ (xsl:template match="state" mode="conflicts): New.
+ * src/conflicts.c (conflicts_output_xml): Remove.
+ * src/conflicts.h (conflicts_output_xml): Remove prototype.
+ * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
+ * src/print.c (print_grammar): Consistently wrap at the 66th column so
+ the corresponding XSLT is easier. Also, never wrap between a word and
+ the comma that follows it.
+
+2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Improve C++ namespace support. Discussed starting at
+ <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
+ * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
+ b4_namespace_close): New macros that interpret the %define variable
+ "namespace" so its value can contain "::" to indicate nested
+ namespaces.
+ * data/glr.cc (b4_namespace): Don't define, and replace all uses with
+ the above macros.
+ * data/lalr1.cc (b4_namespace): Likewise.
+ * data/location.cc (b4_namespace): Likewise.
+ * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
+ inside a new table in the general %define entry. Document `%define
+ namespace' there as well. Point the %name-prefix entry to it since it
+ explains it more completely in the case of C++.
+ (C++ Bison Interface): Mention `%define namespace' instead of
+ %name-prefix.
+ (Table of Symbols): Remove the `%define push_pull' entry. The %define
+ entry suffices.
+ * tests/c++.at (Relative namespace references): New test case.
+ (Absolute namespace references): New test case.
+ (Syntactically invalid namespace references): New test case.
+ * tests/input.at (C++ namespace reference errors): New test case.
+
+2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Add syncline support and location accessor to internal %define
+ interfaces.
+ * data/bison.m4 (b4_percent_define_get_loc): New.
+ (b4_percent_define_get_syncline): New.
+ (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
+ (b4_percent_define_default): Record defining location as line 1 rather
+ than 0 for the sake of synchronizing #line's, and define
+ b4_percent_define_syncline(VARIABLE).
+ (b4_percent_define_check_values): Use b4_percent_define_get_loc.
+ * src/muscle_tab.c (muscle_syncline_grow): New.
+ (muscle_code_grow): Use muscle_syncline_grow.
+ (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
+ define b4_percent_define_syncline(VARIABLE).
+ (muscle_percent_define_get_loc): New.
+ (muscle_percent_define_get_syncline): New.
+ (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
+ remove some unused variables.
+ (muscle_percent_define_default): Record defining location as line 1
+ rather than 0 for the sake of synchronizing #line's, and define
+ b4_percent_define_syncline(VARIABLE).
+ (muscle_percent_define_check_values): Use
+ muscle_percent_define_get_loc.
+ * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
+ (muscle_percent_define_get_syncline): Prototype.
+ * tests/skeletons.at (%define Boolean variables: invalid skeleton
+ defaults): Update output for location change.
+ (Complaining during macro argument expansion): Extend to test
+ b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
+
+2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Fix some error-reporting macro bugs.
+ * data/bison.m4 (b4_cat): New.
+ (b4_error, b4_error_at): Use b4_cat to send error directives directly
+ to stdout so they don't become arguments to other macros. Update
+ comments and add examples.
+ (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
+ add examples.
+ (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
+ after printing the error directive so that M4 doesn't report subsequent
+ problems that are induced by this problem.
+ * src/scan-skel.l: Recognize @` digraph outside of directive arguments
+ instead of just in them. Recognize @\n in both places. Both expand to
+ the empty string. Needed by b4_cat.
+ * tests/skeletons.at (Complaining during macro argument expansion):
+ New test case.
+ (Fatal errors make M4 exit immediately): New test case.
+
+2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Implement --print-datadir.
+ * src/getargs.c (usage): Mention.
+ (PRINT_DATADIR_OPTION): New anonymous enum member.
+ (long_options): Add entry for it.
+ (getargs): Add case for it calling compute_pkgdatadir.
+ * src/output.c (output_skeleton): Encapsulate data directory
+ computation from here...
+ (prepare): ... and from here...
+ (compute_pkgdatadir): ... into this new function.
+ * src/output.h (compute_pkgdatadir): Prototype.
+
+2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/print-xml.c (escape_bufs): New static global variable
+ replacing...
+ (xml_escape_n): ... the static local variable buf here.
+ (print_xml): Free memory for escape_bufs.
+ * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
+
+2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Replace `%push-parser' and `%push-pull-parser' with
+ `%define push_pull "push"' and `%define push_pull "both"'.
+ `%define push_pull "pull"' is the default.
+ * doc/bison.texinfo (Push Decl, Push Parser Function,
+ Pull Parser Function, Parser Create Function, Parser Delete Function):
+ Update declarations.
+ (Decl Summary, Table of Symbols): Replace %push-parser and
+ %push-pull-parser entries with a %define push_pull entry.
+ * data/bison.m4 (b4_percent_define_check_values): New macro.
+ (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
+ definitions...
+ * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
+ definitions...
+ * data/push.c: ... to here and compute them from the value of the
+ %define variable push_pull.
+ * data/c-skel.m4: Instead of choosing the push.c skeleton for push
+ parsing requests here...
+ * data/yacc.c: ... hack this to switch to push.c any time
+ b4_use_push_pull_flag or the %define variable push_pull is set. This
+ will go away when we mv push.c yacc.c.
+ * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
+ push parsing is not supported since unused %define variables are
+ reported anyway.
+ * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
+ * src/muscle_tab.h (muscle_percent_define_check_values): Update
+ comments for consistency with b4_percent_define_check_values.
+ * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
+ muscles.
+ * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
+ Remove.
+ (prologue_declaration): Remove %push-parser and %push-pull-parser
+ rules.
+ * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
+ * tests/calc.at: Update declarations.
+ * tests/input.at (%define enum variables): New test case.
+ * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
+ declaration.
+ (Push Parsing: Multiple impure instances): Update declaration.
+ (Push Parsing: Unsupported Skeletons): New test case.
+ * tests/torture.at (Exploding the Stack Size with Alloca): Update
+ declaration.
+ (Exploding the Stack Size with Malloc): Update declaration.
+
+2007-09-24 Wojciech Polak <polak@gnu.org>
+
+ Add XSLT transformations.
+
+ * data/xslt/xml2dot.xsl: Transform XML into DOT.
+ * data/xslt/xml2text.xsl: Transform XML into plain text.
+ * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
+ * data/Makefile.am (xsltdir): New variable.
+ (dist_xslt_DATA): Add xslt/*.xsl files.
+
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