Add native Windows binary for gperf.

gperf/src/gperf/3.0.1/gperf-3.0.1-src/ChangeLog

Index: gperf/src/gperf/3.0.1/gperf-3.0.1-src/ChangeLog 
=================================================================== 
--- gperf/src/gperf/3.0.1/gperf-3.0.1-src/ChangeLog	(revision 0) 
+++ gperf/src/gperf/3.0.1/gperf-3.0.1-src/ChangeLog	(revision 0) 
@@ -0,0 +1,3185 @@ 
+2003-06-12 Bruno Haible <bruno@clisp.org> 
+ 
+	* gperf-3.0.1 released. 
+ 
+	* src/version.cc: Bump version number to 3.0.1. 
+	* doc/gperf.texi: Likewise. 
+	* tests/c-parse.exp, tests/charsets.exp, tests/chill.exp, 
+	tests/cplusplus.exp, tests/gpc.exp, tests/incomplete.exp, 
+	tests/java.exp, tests/languages.exp, tests/modula2.exp, 
+	tests/objc.exp, tests/permut2.exp, tests/permut3.exp, 
+	tests/permutc2.exp, tests/test-4.exp: Update. 
+ 
+2003-05-31 Bruno Haible <bruno@clisp.org> 
+ 
+	* doc/gperf.texi (User-supplied Struct): Mention the possibility of an 
+	abbreviated struct declaration. 
+	* src/input.cc (Input::read_input): Support struct declarations of the 
+	form "struct foo;". 
+	* tests/incomplete.gperf: New file. 
+	* tests/incomplete.exp: New file. 
+	* tests/Makefile.in (check-test): Check incomplete.gperf too. 
+	Reported by Rob Leslie <rob@mars.org>. 
+ 
+2003-05-20 Bruno Haible <bruno@clisp.org> 
+ 
+	* doc/Makefile.in (gperf.ps): Don't use $< in a target rule. 
+ 
+2003-05-27 Bruno Haible <bruno@clisp.org> 
+ 
+	* Makefile.vms (CC): Correct value. 
+	(getopt.obj, getopt1.obj, getline.obj, hash.obj): Don't set 
+	HAVE_CONFIG_H. 
+ 
+2003-05-17 Bruno Haible <bruno@clisp.org> 
+ 
+	* Makefile.msvc (DEBUGFLAGS): New variable. 
+	(gperf.exe): Use it, and MFLAGS too. 
+ 
+2003-05-08 Bruno Haible <bruno@clisp.org> 
+ 
+	* gperf-3.0 released. 
+ 
+2003-05-07 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/version.cc: Bump version number to 3.0. 
+	* doc/gperf.texi: Likewise. 
+	* tests/c-parse.exp, tests/charsets.exp, tests/chill.exp, 
+	tests/cplusplus.exp, tests/gpc.exp, tests/java.exp, 
+	tests/languages.exp, tests/modula2.exp, tests/objc.exp, 
+	tests/permut2.exp, tests/permut3.exp, tests/permutc2.exp, 
+	tests/test-4.exp: Update. 
+ 
+	* src/configure.in: Fix AC_INIT argument. 
+ 
+	* Makefile.devel (configure, lib/configure, src/configure, 
+	tests/configure, doc/configure): Use the newest autoconf. 
+	(src/config.h.in): Use the newest autoheader. 
+ 
+2003-05-03 Bruno Haible <bruno@clisp.org> 
+ 
+	* doc/gperf.texi: Use two spaces as sentence separator, as recommended 
+	by the texinfo manual. 
+ 
+2003-04-12 Bruno Haible <bruno@clisp.org> 
+ 
+	* doc/configure.in (mandir): Change default value. 
+	* doc/Makefile.in (docdir): Use datadir instead of prefix. 
+	* Makefile.msvc (datadir): New variable. 
+	(mandir, docdir): Use it instead of prefix. 
+	(install, installdirs): Update. 
+	* Makefile.vms (datadir): New variable. 
+	(mandir, docdir): Use it instead of prefix. 
+	(install, installdirs): Update. 
+ 
+2003-04-12 Bruno Haible <bruno@clisp.org> 
+ 
+	* README.vms: New file. 
+	* Makefile.vms: New file. 
+	* Makefile.devel (src/config.h_vms): New rule. 
+	(all): Depend on it. 
+ 
+2003-03-19 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/input.cc (Input::read_input): Ignore comments at the beginning 
+	of the declarations section. 
+	* doc/gperf.texi (Controls for GNU indent): New section. 
+	Reported by Bruce Lilly <blilly@erols.com>. 
+ 
+2003-03-19 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/output.cc (Output::output_hash_function): Avoid lint warning if 
+	not all arguments of the hash function are used. Avoid lint warning 
+	for fallthrough in switch. 
+	* tests/c-parse.exp, tests/charsets.exp, tests/chill.exp, 
+	tests/cplusplus.exp, tests/java.exp, tests/languages.exp, 
+	tests/modula2.exp, tests/objc.exp: All /*FALLTHROUGH*/ to expected 
+	output. 
+	Reported by Bruce Lilly <blilly@erols.com>. 
+ 
+2003-03-01 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.h (Options::set_initializer_suffix): New declaration. 
+	* src/options.cc (Options::set_initializer_suffix): New method. 
+	* src/input.cc (Input::read_input): Recognize %define 
+	initializer-suffix. 
+	* doc/gperf.texi (Gperf Declarations): Document %define 
+	initializer-suffix. 
+	* NEWS: Update. 
+ 
+2003-02-26 Bruno Haible <bruno@clisp.org> 
+ 
+	* Makefile.msvc: New file. 
+	* README.woe32: New file. 
+	* Makefile.devel (all): Depend on src/config.h.msvc. 
+	(src/config.h.msvc): New rule. 
+ 
+2003-01-07 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/input.h (Input::_charset_dependent): New field. 
+	* src/input.cc (Input::read_input): Also set _charset_dependent. 
+	* src/main.cc (main): Pass _charset_dependent from Input to Output. 
+	* src/output.h (Output::Output): Add charset_dependent argument. 
+	(Output::_charset_dependent): New field. 
+	* src/output.cc (Output::Output): Add charset_dependent argument. 
+	(Output::output): Provoke a compilation error if the execution 
+	character set doesn't match the expectations. 
+	* tests/c-parse.exp, tests/charsets.exp, tests/chill.exp, 
+	tests/cplusplus.exp, tests/gpc.exp, tests/java.exp, 
+	tests/languages.exp, tests/modula2.exp, tests/objc.exp, 
+	tests/permut2.exp, tests/permut3.exp, tests/permutc2.exp, 
+	tests/test-4.exp: Update. 
+ 
+	* src/options.cc (Options::long_usage): Change bug report address to 
+	<bug-gnu-gperf@gnu.org>. 
+	* tests/test-6.exp: Update. 
+ 
+	* src/output.cc (USE_DOWNCASE_TABLE): New macro. 
+	(output_upperlower_table): New function. 
+	(output_upperlower_strcmp, output_upperlower_strncmp, 
+	output_upperlower_memcmp): Emit gperf_downcase array accesses. 
+	(Output::output): Call output_upperlower_table. 
+	* tests/permutc2.exp: Update. 
+ 
+	* src/keyword-list.icc (KeywordExt_List::rest): Use a portable cast. 
+	(Only in GCC a cast of an lvalue is an lvalue.) 
+ 
+2003-01-01 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.cc (Options::parse_options): Update copyright year. 
+ 
+	* doc/gperf.texi (@author): Add me. 
+ 
+	* src/options.h (NULLSTRINGS): New enum value. 
+	(Options::get_stringpool_name, Options::set_stringpool_name): New 
+	method declarations. 
+	(Options::_stringpool_name): New field. 
+	* src/options.icc (Options::get_stringpool_name): New method. 
+	* src/options.cc (DEFAULT_STRINGPOOL_NAME): New variable. 
+	(Options::long_usage): Document -Q and --null-strings. 
+	(Options::Options): Initialize _stringpool_name. 
+	(Options::~Options): Output _stringpool_name, NULLSTRINGS values too. 
+	(Options::set_stringpool_name): New method. 
+	(long_options): Add options --string-pool-name, --null-strings. 
+	(Options::parse_options): Implement options -P, -Q and --null-strings. 
+	* src/input.cc (Input::read_input): Recognize declarations %pic, 
+	%define string-pool-name, %null-strings. 
+	* src/output.h (Output::output_string_pool, 
+	Output::output_lookup_pools): New method declarations. 
+	(Output::_wordlist_eltype): New field. 
+	* src/output.cc (Output::output_keylength_table): Trivial 
+	simplification. 
+	(Output::output_string_pool): New method. 
+	(output_keyword_entry): Add stringpool_index argument. For SHAREDLIB, 
+	use struct offsets. 
+	(output_keyword_blank_entries): For SHAREDLIB, use -1 instead of "". 
+	(Output::output_keyword_table): Use _wordlist_eltype instead of 
+	_struct_tag. Compute stringpool_index for output_keyword_entry. 
+	(Output::output_lookup_pools): New method. 
+	(Output::output_lookup_function_body): Use _wordlist_eltype instead of 
+	_struct_tag. For SHAREDLIB, use "+ stringpool" to convert offsets to 
+	strings. Use "o >= 0" to test for nonempty table entry. 
+	(Output::output_lookup_function): Call output_lookup_pools. 
+	(Output::output): Initialize _wordlist_eltype. Call 
+	output_lookup_pools. 
+	* tests/jstest4.gperf: New file. 
+	* tests/test-6.exp: Update. 
+	* tests/Makefile.in (check-lang-syntax): Drop test of -p. Add tests of 
+	-P and -Q. 
+	* doc/gperf.texi (User-supplied Struct): Mention that first field has 
+	to be of type 'int' if -P is given. 
+	(Gperf Declarations): Document %pic, %define string-pool-name, 
+	%null-strings. 
+	(Output Details): Update description of option -P. Document options -Q 
+	and --null-strings. 
+ 
+	* tests/Makefile.in (check-link-c, check-ada, check-pascal, 
+	check-test): Omit option -p. 
+	* tests/c-parse.exp: Regenerated. 
+	* tests/chill.exp: Regenerated. 
+	* tests/cplusplus.exp: Regenerated. 
+	* tests/gpc.exp: Regenerated. 
+	* tests/java.exp: Regenerated. 
+	* tests/objc.exp: Regenerated. 
+	* tests/test-4.exp: Regenerated. 
+ 
+	* src/output.cc (Output::output_lookup_function_body): Omit the 
+	multicompare code section and its variables when it is not used. 
+	* tests/chill.exp: Regenerated. 
+ 
+	* src/output.c (Output_Compare::output_firstchar_comparison): New 
+	method. 
+	(Output_Compare_Strcmp::output_comparison, 
+	Output_Compare_Strncmp::output_comparison, 
+	Output_Compare_Memcmp::output_comparison): Use it. 
+	* tests/permutc2.exp: Update. 
+ 
+	* tests/smtp.gperf: New file, based on a contribution by Bruce Lilly. 
+	* tests/Makefile.in (check-smtp): New rule. 
+	(check): Depend on it. 
+	(clean): Update. 
+ 
+2002-12-12 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/search.h (Search::init_selchars_tuple, 
+	Search::count_duplicates_tuple): Add alpha_unify argument. 
+	(Search::count_duplicates_tuple): New method declaration. 
+	* src/search.cc (Search::init_selchars_tuple, 
+	Search::count_duplicates_tuple): Add alpha_unify argument. 
+	(Search::find_positions): Update. 
+	(Search::count_duplicates_tuple): New method. 
+	(Search::count_duplicates_multiset): Free temp alpha_unify vector. 
+	(Search::find_alpha_inc): Call count_duplicates_tuple. 
+ 
+	* src/configure.in: Add test for stack-allocated variable-size arrays. 
+	* src/config.h.in: Regenerated. 
+	* src/search.cc: Include config.h. 
+	(DYNAMIC_ARRAY, FREE_DYNAMIC_ARRAY): New macros. 
+	(Search::find_alpha_inc, Search::count_possible_collisions, 
+	Search::find_asso_values): Use them. 
+	* src/Makefile.in (search.o): Depend on config.h. 
+ 
+	* src/search.h (Search::keyword_list_length, Search::max_key_length, 
+	Search::get_max_keysig_size, Search::prepare): Remove declarations. 
+	(Search::prepare): Renamed from Search::preprepare. 
+	(Search::_max_selchars_length): New field. 
+	* src/search.cc (Search::prepare): Renamed from Search::preprepare. 
+	(Search::prepare_asso_values): Merged with old Search::prepare. 
+	Initialize _max_selchars_length. 
+	(Search::keyword_list_length): Remove function. Use _list_len instead. 
+	(Search::max_key_length): Remove function. Use _max_key_len instead. 
+	(Search::get_max_keysig_size): Remove function. Use 
+	_max_selchars_length instead. 
+	(Search::count_possible_collisions, Search::find_asso_values): Update. 
+	(Search::find_good_asso_values): Call just prepare_asso_values. 
+	(Search::~Search): Update. 
+ 
+	* src/output.h (Output::output_asso_values_ref): New declaration. 
+	* src/output.cc (char_to_index): Remove variable. 
+	(Output::output_asso_values_ref): New function. 
+	(Output::output_hash_function): Use it. 
+	(Output::output): Update. 
+ 
+	* src/positions.h (Positions::is_useall, Positions::set_useall, 
+	Positions::iterator, Positions::reviterator): New method declarations. 
+	(Positions::_useall): New field. 
+	(PositionIterator): Make constructor private. Add a constructor and a 
+	copy constructor. 
+	(PositionIterator::remaining): New declaration. 
+	(PositionReverseIterator): Make constructor private. Add a constructor 
+	and a copy constructor. 
+	(PositionReverseIterator::remaining): New declaration. 
+	(PositionReverseIterator::_minindex): New field. 
+	* src/positions.icc (Positions::Positions): Initialize _useall. 
+	(Positions::operator=): Likewise. 
+	(Positions::is_useall, Positions::set_useall): New methods. 
+	(Positions::sort): Do nothing if _useall is set. 
+	(Positions::iterator, Positions::reviterator): New methods. 
+	(PositionIterator::PositionIterator): New constructor. 
+	(PositionIterator::remaining): New method. 
+	(PositionReverseIterator::PositionReverseIterator): New constructor. 
+	(PositionReverseIterator::next): Use _minindex as bound. 
+	(PositionReverseIterator::remaining): New method. 
+	* src/positions.cc (Positions::add, Positions::remove): Reset the 
+	useall flag. 
+	(Positions::print): Handle the useall case. 
+	* src/options.h (ALLCHARS): Remove. 
+	* src/options.cc (Options::~Options): Update. 
+	(Options::parse_options): Use Positions::set_useall(). 
+	* src/keyword.h (KeywordExt::init_selchars_tuple, 
+	KeywordExt::init_selchars_multiset, KeywordExt::init_selchars_low): 
+	Remove use_all_chars argument. 
+	* src/keyword.cc (KeywordExt::init_selchars_low): Remove use_all_chars 
+	argument. Tell the position iterator to stop at _allchars_length. 
+	Remove special case code for -k'*'. 
+	(KeywordExt::init_selchars_tuple, KeywordExt::init_selchars_multiset): 
+	Remove use_all_chars argument. 
+	* src/search.h (Search::init_selchars_tuple): Remove use_all_chars 
+	argument. 
+	(Search::init_selchars_multiset): Likewise. 
+	* src/search.cc (Search::init_selchars_tuple): Remove use_all_chars 
+	argument. 
+	(Search::count_duplicates_tuple, Search::find_positions): Update. 
+	(Search::compute_alpha_unify): Remove special case code for -k'*'. 
+	(Search::init_selchars_multiset): Remove use_all_chars argument. 
+	(Search::count_duplicates_multiset): Update. 
+	(Search::find_alpha_inc): Remove special case code for -k'*'. 
+	(Search::prepare): Update. 
+	(Search::get_max_keysig_size): Update. 
+	* src/output.cc (Output::output_hash_function): Remove special case 
+	code for -k'*'. 
+	* tests/chill.exp: Regenerated. 
+ 
+2002-12-11 Bruno Haible <bruno@clisp.org> 
+ 
+	Change the positions to be 0-based, instead of 1-based. 
+	* src/positions.h (Positions::LASTCHAR): Set to -1. 
+	(Positions::MAX_SIZE): New constant. 
+	(Positions::pointer): Change return type. 
+	(Positions::_positions): Change element type. 
+	(PositionIterator::EOS, PositionReverseIterator::EOS): Set to -2. 
+	* src/positions.icc (Positions::pointer): Change return type. 
+	(Positions::sort): Update. 
+	* src/positions.cc (Positions::contains, Positions::add, 
+	Positions::remove): Update. 
+	(Positions::print): Update. Fix off-by-one bug. 
+	* src/options.cc (Options::~Options): Update. 
+	(Options::parse_options): Set BAD_VALUE to -3. Update. 
+	* src/keyword.cc (KeywordExt::init_selchars_low): Update. 
+	* src/search.cc (Search::find_positions, Search::compute_alpha_unify, 
+	Search::find_alpha_inc): Update. 
+	* src/output.cc (Output::output_hash_function): Update. Don't emit 
+	a 'case' statement right after 'default:'. 
+	* tests/c-parse.exp: Regenerated. 
+	* tests/charsets.exp: Regenerated. 
+	* tests/cplusplus.exp: Regenerated. 
+	* tests/java.exp: Regenerated. 
+	* tests/languages.exp: Regenerated. 
+	* tests/modula2.exp: Regenerated. 
+	* tests/objc.exp: Regenerated. 
+ 
+2002-12-10 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.h: Reorder enum values. 
+	(Options::short_usage, Options::long_usage): Make static. 
+	* src/options.cc (Options::short_usage); No longer print a monster 
+	usage line. 
+	(Options::print_options): Improve output of options like 
+	--key-positions=1,2,$. 
+	(Options::~Options): Update. 
+ 
+	* src/options.h (UPPERLOWER): New enum value. 
+	* src/options.cc (Options::long_usage): Document option --ignore-case. 
+	(Options::~Options): Update. 
+	(long_options): Add option --ignore-case. 
+	(Options::parse_options): Handle option --ignore-case. 
+	* src/input.cc (Input::read_input): Recognize option %ignore-case. 
+	* src/keyword.h (KeywordExt::init_selchars_tuple, 
+	KeywordExt::init_selchars_multiset, KeywordExt::init_selchars_low): 
+	Add alpha_unify argument. 
+	* src/keyword.cc (KeywordExt::init_selchars_low): Add alpha_unify 
+	argument. 
+	(KeywordExt::init_selchars_tuple): Add alpha_unify argument. 
+	(KeywordExt::init_selchars_multiset): Add alpha_unify argument. 
+	* src/search.h (Search::compute_alpha_size, 
+	Search::compute_alpha_unify): New declarations. 
+	(Search::init_selchars_multiset): Add alpha_unify argument. 
+	(Search::_alpha_unify): New field. 
+	* src/search.cc (Search::compute_alpha_size, 
+	Search::compute_alpha_unify): New functions. 
+	(Search::init_selchars_tuple): Update. 
+	(Search::find_positions): Temporarily set _alpha_unify. Perform a 
+	case insensitive comparison if needed. 
+	(Search::init_selchars_multiset): Add alpha_unify argument. 
+	(Search::count_duplicates_multiset): Call compute_alpha_unify. 
+	(Search::find_alpha_inc): Temporarily set _alpha_unify. At the end, 
+	set _alpha_size and _alpha_unify. 
+	(Search::prepare): Update. Don't compute _alpga_size here. 
+	(Search::optimize): Propagate unified asso_values. 
+	(Search::~Search) Delete _alpha_unify. 
+	* src/output.cc (output_upperlower_strcmp, output_upperlower_strncmp, 
+	output_upperlower_memcmp): New functions. 
+	(Output_Compare_Strcmp::output_comparison, 
+	Output_Compare_Strncmp::output_comparison, 
+	Output_Compare_Memcmp::output_comparison): Use the case-insensitive 
+	comparison function if --ignore-case was given. 
+	(Output::output): Emit the auxiliary case-insensitive comparison 
+	function if needed. 
+	* tests/permutc2.gperf, tests/permutc2.exp: New files. 
+	* tests/Makefile.in (check-test): Also check permutc2.gperf. 
+	* tests/test-6.exp: Update. 
+	* doc/gperf.texi (Gperf Declarations): Document %ignore-case. 
+	(Input Details): Document option --ignore-case. 
+	* NEWS: Update. 
+ 
+	* src/search.cc (Search::optimize): Fill unused asso_values[] entries 
+	with a large value. 
+	* src/output.h (Output::Output): Remove occurrences argument. 
+	(Output::_occurrences): Remove field. 
+	* src/output.cc (Output::Output): Remove occurrences argument. 
+	(Output::output_hash_function): Ignore _occurrences. 
+	* src/main.cc (main): Don't pass the _occurrences to Output. 
+ 
+	* src/search.cc (Search::preprepare): Exit if keywords contain 
+	out-of-range characters. 
+ 
+	* src/search.cc (for): Define so as to avoid errors with old compilers. 
+ 
+	* src/options.h (SHAREDLIB): New enum value. 
+	* src/options.cc (Options::short_usage): Mention option -P. 
+	(Options::long_usage): Document option -P. 
+	(long_options): Add option --pic. 
+	(Options::parse_options): Handle option -P/--pic. 
+	* src/output.cc (output_keyword_blank_entries): When SHAREDLIB is 
+	specified, emit NULL pointers instead of "". 
+	(Output::output_lookup_function_body): When SHAREDLIB is specified 
+	and SWITCH and DUP and not specified, test the table entry against 
+	NULL before the string comparison. 
+	* tests/test-6.exp: Update. 
+	* doc/gperf.texi (Output Details): Document option -P. 
+	* NEWS: Update. 
+	Suggested by Ulrich Drepper. 
+ 
+2002-12-08 Bruno Haible <bruno@clisp.org> 
+ 
+	* tests/permut2.gperf, tests/permut2.exp: New files. 
+	* tests/permut3.gperf, tests/permut3.exp: New files. 
+	* tests/charsets.gperf: New file, from Bruce Lilly. 
+	* tests/charsets.exp: New file. 
+	* tests/languages.gperf: New file, from Bruce Lilly. 
+	* tests/languages.exp: New file. 
+	* Makefile.in (check-test): Test them all. 
+ 
+	Completely new asso_values search algorithm. 
+	* src/search.h (Search::compute_occurrence, Search::clear_determined, 
+	Search::set_determined, Search::already_determined, Search::reorder): 
+	Remove functions. 
+	(Search::init_asso_values, Search::sort_by_occurrence, 
+	Search::compute_occurrence, Search::sort_by_occurrence, 
+	Search::has_collisions, Search::collision_prior_to): Remove functions. 
+	(Search::compute_partition, Search::count_possible_collisions, 
+	Search::unchanged_partition): New method declarations. 
+	(Search::_determined): Remove field. 
+	* src/search.cc (Search::prepare): Don't initialize _determined. 
+	(Search::compute_occurrence, greater_by_occurrence, 
+	Search::clear_determined, Search::set_determined, 
+	Search::already_determined, Search::reorder): Remove functions. 
+	(Search::init_asso_values, compute_disjoint_union, 
+	Search::sort_by_occurrence, Search::compute_occurrence, 
+	Search::sort_by_occurrence, Search::has_collisions, 
+	Search::collision_prior_to): Remove functions. 
+	(StackEntry): Remove class. 
+	(EquivalenceClass, Step): New classes. 
+	(equals, Search::compute_partition, delete_partition, 
+	Search::count_possible_collisions, Search::unchanged_partition): New 
+	functions. 
+	(Search::find_asso_values): Completely rewritten. 
+	(Search::find_good_asso_values): Don't call reorder(). 
+	(Search::~Search): Don't free _determined. 
+	* src/keyword.h (KeywordExt::_occurrence): Remove field. 
+	* src/options.h (ORDER, FAST, OPT_CHOICE): Remove enum values. 
+	(Options::_iterations): Remove field. 
+	* src/options.icc (Options::get_iterations): Remove method. 
+	* src/options.cc (Options::long_usage): Remove mention of -f and -o. 
+	(Options::Options): Don't initialize _iterations. 
+	(Options::~Options): Update. 
+	(Options::parse_options): Do nothing for options -f, -o, -O. 
+	* doc/gperf.texi: (Contributors): Update. 
+	(Algorithmic Details): Remove options -f and -o. Update description 
+	of option -s. 
+	* tests/c-parse.exp, tests/chill.exp, tests/cplusplus.exp, 
+	tests/gpc.exp, tests/java.exp, tests/modula2.exp, tests/objc.exp, 
+	tests/test-4.exp): Regenerated, smaller than before. 
+	* tests/test-6.exp: Update. 
+	* NEWS: Update. 
+ 
+2002-12-08 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/search.h (Search::_alpha_size): Change type to 'unsigned int'. 
+	(Search::_asso_value_max): Likewise. 
+	* src/search.cc (Search::prepare_asso_values): Update. 
+	(Search::init_asso_values): Update. 
+	(Search::~Search): Update. 
+	* src/output.h (Output::Output): Change alpha_size type to 
+	'unsigned int'. 
+	(Output::_alpha_size): Change type to 'unsigned int'. 
+	* src/output.cc (Output::Output): Change alpha_size type to 
+	'unsigned int'. 
+	(Output::output_hash_function): Update. 
+ 
+2002-12-07 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.h (OPT_CHOICE): New enum value. 
+	* src/options.cc (Options::~Options): Update. 
+	(long_options): New option --optimized-collision-resolution. 
+	(Options::parse_options): Accept option -O. 
+	* src/search.h (Search::sort_by_occurrence): Change argument to 
+	'unsigned int'. 
+	(Search::compute_occurrence, Search::sort_by_occurrence): New method 
+	declarations. 
+	* src/search.cc (Search::sort_by_occurrence): Change argument to 
+	'unsigned int'. 
+	(Search::compute_occurrence, Search::sort_by_occurrence): New methods. 
+	(Search::find_asso_values): Implement OPT_CHOICE. More debugging 
+	output. 
+ 
+	* src/search.cc (Search::prepare_asso_values) [DEBUG]: Also print 
+	the keyword list in order. 
+	(Search::find_asso_values) [DEBUG]: Upon failure, print the union_set. 
+ 
+	* src/options.h (Options::get_size_multiple): Change return type to 
+	float. 
+	(Options::_size_multiple): Change type to float. 
+	* src/options.icc (Options::get_size_multiple): Change return type to 
+	float. 
+	* src/options.cc (Options::long_usage): Update description of option 
+	-s. 
+	(Options::~Options): Update. 
+	(Options::parse_options): For option -s, accept a fraction. 
+	* src/search.cc (Search::prepare_asso_values): Use get_size_multiple 
+	as it is. 
+	* tests/test-6.exp: Update. 
+	* doc/gperf.texi (Algorithmic Details): Update description of option 
+	-s. 
+ 
+2002-12-04 Bruno Haible <bruno@clisp.org> 
+ 
+	Improve debugging output. 
+	* src/hash-table.h (Hash_Table::dump): New method. 
+	* src/hash-table.cc (Hash_Table::dump): New method, extracted from 
+	destructor. 
+	(Hash_Table::~Hash_Table): No longer print the contents. 
+	* src/positions.h (PositionReverseIterator): New class. 
+	* src/positions.icc (PositionReverseIterator::PositionReverseIterator, 
+	PositionReverseIterator::next): New methods. 
+	* src/search.cc (Search::find_positions): If debugging, print the 
+	result. 
+	(Search::find_alpha_inc): If debugging, print the result. 
+	(Search::prepare): Explicitly dump the hash table's contents here. 
+ 
+	Portability fixes. 
+	* src/positions.h (Positions::LASTCHAR, Positions::MAX_KEY_POS, 
+	PositionIterator::EOS): Define as compile-time constants using enum. 
+	* src/bool-array.cc (Bool_Array::~Bool_Array): Remove const qualifier 
+	of pointer to be deleted. 
+	* src/input.cc (Input::~Input): Likewise. 
+	* src/keyword.cc (KeywordExt::delete_selchars): Likewise. 
+	* src/main.cc (main): Likewise. 
+	* src/hash-table.cc (Hash_Table::~Hash_Table): Limit scope of 'for' 
+	variables. 
+	* src/search.cc (Search::prepare_asso_values): Use a static_cast to 
+	convert from time_t to long. This is possible because ISO C 99 says 
+	time_t is a numeric type. 
+ 
+2002-11-20 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/search.cc (Search::find_asso_values): Avoid gcc warnings about 
+	uninitialized variables. 
+ 
+	Implement backtracking. 
+	* src/search.h (Search::has_collisions): Renamed from 
+	Search::less_collisions. Return a boolean. 
+	* src/search.cc (Search::has_collisions): Renamed from 
+	Search::less_collisions. Return a boolean. 
+	(StackEntry): Remove field _collisions_so_far. 
+	(Search::find_asso_values): Backtrack when encountering an unresolved 
+	collision. Assume collisions_so_far is always zero. 
+	(Search::optimize): Exit if there are accidental duplicates at the end. 
+	* src/output.cc (Output::num_hash_values): Simply return the list 
+	length. 
+	(Output::output_keylength_table): Remove handling of accidental 
+	duplicates. 
+	(Output::output_keyword_table, Output::output_lookup_array): Likewise. 
+	(output_switch_case, output_switches): Likewise. 
+	* doc/gperf.texi (Algorithmic Details): Adjust description of options 
+	-D, -f, -o, -r. 
+	(Bugs): Remove note about missing backtracking. 
+	(Projects): Likewise. 
+ 
+2002-11-19 Bruno Haible <bruno@clisp.org> 
+ 
+	Prepare for backtracking. 
+	* src/search.h (Search::try_asso_value, Search::change_some_asso_value): 
+	Remove declarations. 
+	(Search::less_collisions, Search::collision_prior_to): New declarations. 
+	(Search::_fewest_collisions, Search::_union_set, Search::_num_done): 
+	Remove fields. 
+	* src/search.cc (Search::prepare_asso_values): Don't initialize 
+	_union_set. 
+	(Search::try_asso_value, Search::change_some_asso_value): Remove 
+	methods. 
+	(Search::less_collisions, Search::collision_prior_to): New methods. 
+	(StackEntry): New class. 
+	(Search::find_asso_values): Reorganized to use pseudo-recursion. 
+	(Search::~Search): Don't free _union_set. 
+ 
+	* src/search.h (Search::find_good_asso_values): New declaration. 
+	* src/search.cc: Add comments about the basic structure of the 
+	algorithm. 
+	(Search::find_positions): Move the option[POSITIONS] test to here. 
+	(Search::find_good_asso_values): New method, extracted from 
+	Search::optimize. 
+	(Search::optimize): Remove option[POSITIONS] test. Call 
+	find_good_asso_values. 
+ 
+2002-11-17 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.cc (Options::parse_options): Include copyright notice 
+	and authors in --version output. 
+ 
+	Avoid artificial duplicates. 
+	* src/keyword.h (KeywordExt::init_selchars_tuple): New declaration. 
+	(KeywordExt::init_selchars_multiset): Renamed from 
+	KeywordExt::init_selchars. 
+	(KeywordExt::init_selchars_low): New declaration. 
+	* src/keyword.cc (KeywordExt::init_selchars_low): Renamed from 
+	KeywordExt::init_selchars. Add alpha_inc argument. Remove sorting. 
+	(KeywordExt::init_selchars_tuple): New method. 
+	(KeywordExt::init_selchars_multiset): New method, replaces 
+	KeywordExt::init_selchars. 
+	* src/search.h (Search::init_selchars_tuple): Renamed from 
+	Search::init_selchars. 
+	(Search::count_duplicates_tuple): Renamed from Search::count_duplicates. 
+	(Search::init_selchars_multiset, Search::count_duplicates_multiset, 
+	Search::find_alpha_inc): New declarations. 
+	(Search::_alpha_inc): New field. 
+	(Search::_alpha_size, Search::_occurrences, Search::_asso_values, 
+	Search::_determined): Make non-const. 
+	* src/search.cc (Search::Search): Don't initialize _key_positions, 
+	_alpha_size, _occurrences, _asso_values, _determined here. 
+	(Search::init_selchars_tuple): Renamed from Search::init_selchars. 
+	(Search::count_duplicates_tuple): Renamed from Search::count_duplicates. 
+	(Search::find_positions): Update. 
+	(Search::init_selchars_multiset, Search::count_duplicates_multiset, 
+	Search::find_alpha_inc): New methods. 
+	(Search::prepare): Move preprepare, find_positions calls away. 
+	Initialize _alpha_size, _occurrences, _asso_values, _determined here. 
+	(Search::optimize): Call preprepare, find_positions here. Initialize 
+	_key_positions here. 
+	(Search::~Search): Deallocate _alpha_inc. 
+	* src/output.cc (Output::Output): Add alpha_inc argument. 
+	(Output::output_hash_function): Use _alpha_inc. 
+	* src/output.h (Output::Output): Add alpha_inc argument. 
+	(Output::_alpha_inc): New field. 
+	* src/main.cc (main): Pass _alpha_inc from Search to Output. 
+	* tests/chill.exp: Update. 
+	* doc/gperf.texi (Algorithmic Details): Remove description of 
+	artificial duplicates. 
+ 
+	* src/keyword.h (KeywordExt::_selchars): Change type to 
+	'const unsigned int *'. 
+	* src/keyword.cc (sort_char_set): Change argument type to 
+	'unsigned int *'. 
+	(KeywordExt::init_selchars): Update. 
+	* src/search.h (Search::sort_by_occurrence): Change argument type to 
+	'unsigned int *'. 
+	(Search::try_asso_value): Change argument type to 'unsigned int'. 
+	(Search::_union_set): Change type to 'unsigned int *'. 
+	* src/search.cc (Search::prepare, Search::compute_occurrence, 
+	Search::set_determined, Search::already_determined, 
+	Search::prepare_asso_values, Search::compute_hash): Update. 
+	(compute_disjoint_union): Change argument types to 'unsigned int *'. 
+	(Search::sort_by_occurrence): Likewise. 
+	(Search::try_asso_value): Change argument type to 'unsigned int'. 
+	(Search::change_some_asso_value, Search::~Search): Update. 
+	* src/hash-table.cc (Hash_Table::~Hash_Table, Hash_Table::equal, 
+	Hash_Table::insert): Update. 
+ 
+	* src/positions.h: New file, extracted from options.h. 
+	* src/positions.icc: New file, extracted from options.icc. 
+	* src/positions.cc: New file, extracted from options.cc. 
+	* src/options.h: Include positions.h. Move classes Positions and 
+	PositionsIterator away. 
+	* src/options.icc: Move classes Positions and PositionsIterator away. 
+	* src/options.cc: Move class Positions away. 
+	* src/keyword.cc: Include positions.h instead of options.h. 
+	* src/output.h: Include positions.h instead of options.h. 
+	* src/search.h: Include positions.h instead of options.h. 
+	* src/Makefile.in (OBJECTS): Add positions.o. 
+	(POSITIONS_H): New variable. 
+	(OPTIONS_H, SEARCH_H, OUTPUT_H, keyword.o): Use it. 
+	(positions.o): New rule. 
+ 
+	* src/options.h (POSITIONS): New enum value. 
+	(Positions::Positions): New copy constructor. 
+	(Positions::operator=, Positions::contains, Position::add, 
+	Positions::remove, Positions::print): New method declaration. 
+	(Options::get_max_keysig_size): Remove method. 
+	* src/options.icc (Positions::Positions): New copy constructor. 
+	(Positions::operator=): New method. 
+	(Options::get_max_keysig_size): Remove method. 
+	* src/options.cc (Options::Options): Initialize _key_positions 
+	trivially. 
+	(Options::parse_options): Option -k sets POSITIONS. 
+	(Positions::contains, Positions::add, Positions::remove, 
+	Positions::print): New methods. 
+	* src/hash-table.cc (Hash_Table::~Hash_Table): Compute the field 
+	width explicitly, instead of using Options::get_max_keysig_size. 
+	* src/keyword.h (KeywordExt::init_selchars): Add arguments 
+	use_all_chars, positions. 
+	(KeywordExt::delete_selchars): New declaration. 
+	* src/keyword.cc (KeywordExt::init_selchars): Add arguments 
+	use_all_chars, positions. Remove error message if there are no key 
+	positions. 
+	(KeywordExt::delete_selchars): New method. 
+	* src/search.h: Include options.h. 
+	(Search::preprepare, Search::init_selchars, Search::delete_selchars, 
+	Search::count_duplicates, Search::find_positions): New declarations. 
+	(Search::_key_positions): New field. 
+	* src/search.cc (Search::Search): Initialize _key_positions. 
+	(Search::preprepare, Search::init_selchars, Search::delete_selchars, 
+	Search::count_duplicates, Search::find_positions): New functions. 
+	(Search::prepare): Call preprepare and find_positions. Tweak error 
+	message. 
+	(Search::get_max_keysig_size): Use _key_positions instead of 
+	option.get_key_positions(). 
+	(Search::optimize): Tweak error message. 
+	* src/output.h: Include options.h. 
+	(Output::Output): Add Positions argument. 
+	(Output::_key_positions): New field. 
+	* src/output.cc (Output::Output): Add Positions argument. 
+	(Output::output_hash_function): Omit the table if there are no 
+	positions at all. Use _key_positions instead of 
+	option.get_key_positions(). 
+	(Output::output): Output the computed positions as a comment. 
+	* src/main.cc (main): Pass the Positions from Searcher to Output. 
+	* src/Makefile.in (SEARCH_H, OUTPUT_H): Include OPTIONS_H. 
+	* tests/Makefile.in (check-test): Pass key positions explicitly. 
+	* tests/gpc.exp: Update. 
+	* tests/test-4.exp: Update. 
+	* doc/gperf.texi (Algorithmic Details): Mention that -k is not needed 
+	usually. 
+ 
+2002-11-16 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.h (Options::get_slot_name): Renamed from 
+	Options::get_key_name. 
+	(Options::set, Options::set_language, Options::set_total_switches, 
+	Options::set_function_name, Options::set_slot_name, 
+	Options::set_class_name, Options::set_hash_name, 
+	Options::set_wordlist_name, Options::set_delimiters): New method 
+	declarations. 
+	(Options::_language): New field. 
+	(Options::_slot_name): Renamed from Options::_key_name. 
+	* src/options.icc (Options::set): New method. 
+	(Options::get_slot_name): Renamed from Options::get_key_name. 
+	* src/options.cc (DEFAULT_FUNCTION_NAME): Renamed from DEFAULT_NAME. 
+	(DEFAULT_SLOT_NAME): Renamed from DEFAULT_NAME. 
+	(Options::Options): Initialize _language. Update. 
+	(Options::~Options): Update. 
+	(Options::set_language, Options::set_total_switches, 
+	Options::set_function_name, Options::set_slot_name, 
+	Options::set_class_name, Options::set_hash_name, 
+	Options::set_wordlist_name, Options::set_delimiters): New methods. 
+	(Options::parse_options): Call set_language. Update. 
+	* src/input.cc (is_declaration, is_declaration_with_arg, 
+	is_define_declaration): New functions. 
+	(Input::read_input): Accept %DECL declarations. 
+	* src/output.cc (Output::output_lookup_function_body): Update. 
+	* doc/gperf.texi (Declarations): Add new subnodes. 
+	(User-supplied Struct, Gperf Declarations, C Code Inclusion): New 
+	nodes. 
+	(Keywords, Output Format, Binary Strings, Options): Mention % 
+	declarations as being equivalent to the command line options. 
+ 
+	* src/options.cc (Options::long_usage): Rename options -H, -N, -l, -G. 
+	(long_options): Add --hash-function-name, --lookup-function-name, 
+	--compare-lengths. 
+	* doc/gperf.texi (Output Details): Rename options -H, -N, -l, -G. 
+	* tests/test-6.exp: Update. 
+ 
+	* src/options.cc (DEFAULT_DELIMITERS): Remove newline. 
+	* src/options.cc (Options::long_usage): Change default --delimiters. 
+	* doc/gperf.texi (Input Details): Likewise. 
+	* tests/test-6.exp: Update. 
+ 
+	* doc/gperf.texi: Move description of option -l from section 
+	Algorithmic Details to section Output Details. 
+	* src/options.cc (Options::long_usage): Likewise. 
+	* tests/test-6.exp: Update. 
+ 
+2002-11-12 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.h (Output::get_output_file_name): New method. 
+	(Output::_output_file_name): New field. 
+	* src/options.icc (Options::get_output_file_name): New method. 
+	* src/options.cc (Options::long_usage): Document option --output-file. 
+	(Options::Options): Initialize _output_file_name. 
+	(long_options): Add --output-file. 
+	(Options::parse_options): Handle it. 
+	* src/main.cc (main): Open the output file if given by name. 
+	* doc/gperf.texi (Output File): New section. 
+	* tests/test-6.exp: Update. 
+ 
+2002-11-10 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/input.cc (pretty_input_file_name): New function. 
+	(read_input): Use it in all error and warning messages. 
+ 
+	* src/keyword.h (Keyword::_lineno): New field. 
+	* src/input.h (Input::_struct_decl_lineno): New field. 
+	* src/input.cc (Input::read_input): Set _struct_decl_lineno. Fill 
+	each keyword's _lineno field. 
+	* src/main.cc (main): Pass _struct_decl_lineno from Input to Output. 
+	* src/output.h (Output::Output) Add struct_decl_lineno argument. 
+	(Output::_struct_decl_lineno): New field. 
+	* src/output.cc (Output::Output) Add struct_decl_lineno argument. 
+	(output_keyword_entry): Emit #line directive before table entry. 
+	(Output::output): Emit #line directive before _struct_decl. 
+ 
+	Fix memory leaks. 
+	* src/keyword.h (empty_string): New declaration. 
+	* src/keyword.cc (empty_string): New variable. 
+	* src/input.h (Input::_input): Make public. 
+	(Input::_input_end): New field. 
+	* src/input.cc (read_input): When removing leading whitespace from 
+	struct_decl, reallocate it. For rest, use empty_string instead of "". 
+	Set _input_end. 
+	(Input::~Input): Delete _struct_decl, _struct_tag, _return_type. 
+	* src/search.cc (Search::prepare): When removing an element from 
+	the keyword list, delete the list node. 
+	(Search::~Search): Delete _occurrences, _asso_values. 
+	* src/main.cc (main): Between Search::~Search and Input::~Input, 
+	destroy the keyword list. 
+ 
+	Rewrite the input routines. 
+	* src/input.h: Don't include read-line.h. 
+	(Input): Don't inherit from class Read_Line. 
+	(Input::read_keys, Input::strcspn, Input::set_output_types, 
+	Input::get_array_type, Input::save_include_src, 
+	Input::get_special_input): Remove declarations. 
+	(Input::read_input): New declaration. 
+	(Input::_struct_decl): Renamed from Input::_array_type. 
+	(Input::_verbatim_declarations): Renamed from Input::_include_src. 
+	(Input::_verbatim_code): Replaces Input::_additional_code. 
+	* src/input.cc: Completely rewritten. 
+	* src/output.h (Output::Output): Update the verbatim_* arguments. 
+	(Output::_struct_decl): Renamed from Output::_array_type. 
+	(Output::_verbatim_declarations): Renamed from Output::_include_src. 
+	(Output::_verbatim_code): Replaces Output::_additional_code. 
+	* src/output.cc (Output::Output): Update the verbatim_* arguments. 
+	(Output::output): Output the verbatim_* code pieces with #line. 
+	* src/main.cc (main): Call Input::read_input instead of 
+	Input::read_keys. Update Output::Output arguments. 
+	* src/read-line.h: Remove file. 
+	* src/read-line.cc, src/read-line.icc: Remove files. 
+	* src/Makefile.in (OBJECTS): Remove read-line.o. 
+	(READ_LINE_H): Remove variable. 
+	(INPUT_H): Update. 
+	(read-line.o): Remove rule. 
+	* doc/gperf.texi (Declarations): Correct the example. 
+	(Keywords): Mention that lines starting with % are forbidden here. 
+	* tests/c-parse.exp: Update. 
+	* tests/cplusplus.exp: Update. 
+	* tests/gpc.exp: Update. 
+	* tests/java.exp: Update. 
+	* tests/objc.exp: Update. 
+	* tests/test-4.exp: Update. 
+ 
+	* src/options.h (Options::get_input_file_name): New declaration. 
+	(Options::_input_file_name): New field. 
+	* src/options.icc (Options::get_input_file_name): New method. 
+	* src/options.cc (Options::Options): Initialize _input_file_name. 
+	(Options::parse_options): Don't open input file, only store it in 
+	_input_file_name. 
+	* src/main.cc (main): Open input file here. 
+	Print an error message upon write error on the output file. 
+ 
+	Upgrade to autoconf-2.52. 
+	* configure.in: Use AC_CONFIG_SUBDIRS instead of AC_OUTPUT_SUBDIRS. 
+	* Makefile.devel (configure, lib/configure, src/configure, 
+	tests/configure, doc/configure): Use autoconf-2.52. 
+ 
+2002-11-09 Bruno Haible <bruno@clisp.org> 
+ 
+	* doc/gperf.texi: Talk about "bytes" instead of "characters". Talk 
+	about "keywords", not "keys". Talk about "input file", not "keyfile". 
+	(@menu): Fix a menu entry. 
+	(Contributors): Don't mention cperf. 
+	(Motivation): Fix an off-by-one error in the definition of "minimal". 
+	Mention GNU Java. Recommend http URL instead of anonymous ftp. 
+	(Search Structures): Mention GNU Java. 
+	(Output Format): Drop reference to node 'Implementation'. 
+	(Output Details): Talk about "slot-name" instead of "key name". 
+	(Algorithmic Details): Talk about "selected byte positons", not 
+	"key positions". Upper limit is now 255. Explain a third reason 
+	why duplicates can occur. Describe negative effects of 
+	--occurrence-sort. 
+	(Implementation): Remove chapter. 
+ 
+2002-11-07 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/bool-array.cc (Bool_Array::~Bool_Array): Free _storage_array. 
+	* src/search.cc (Search::~Search): Free _union_set, _determined. 
+ 
+	* tests/Makefile.in (check-test): Don't redirect stderr. 
+ 
+2002-11-05 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/keyword-list.h (mergesort_list): New declarations. 
+	* src/keyword-list.cc (Keyword_Comparison): New type. 
+	(merge, mergesort_list): New functions, moved here from search.cc. 
+	* src/search.h (Search::merge, Search::merge_sort): Remove methods. 
+	(Search::_occurrence_sort, Search::_hash_sort): Remove fields. 
+	* src/search.cc (Search::merge, Search::merge_sort): Remove methods. 
+	(greater_by_occurrence, less_by_hash_value): New functions. 
+	(Search::reorder, Search::sort): Use mergesort_list. 
+ 
+2002-11-04 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.h (Options::_asso_iterations): New field. 
+	(Options::get_asso_iterations): New method declaration. 
+	* src/options.icc (Options::get_asso_iterations): New method. 
+	* src/options.cc (Options::short_usage): Mention j<jump> and m<num>. 
+	(Options::long_usage): Document option -m. 
+	(Options::Options): Initialize _asso_iterations. 
+	(Options::~Options): Print _asso_iterations too. 
+	(long_options): Add --multiple-iterations. 
+	(Options::parse_options): Handle option -m. 
+	* src/keyword-list.h (copy_list, delete_list): New declarations. 
+	* src/keyword-list.cc (copy_list, delete_list): New functions. 
+	* src/search.h (Search::_initial_asso_value, Search::_jump): New fields. 
+	* src/search.cc (Search::prepare_asso_values): Initialize 
+	_initial_asso_value and _jump here. 
+	(Search::init_asso_values): Use _initial_asso_value. 
+	(Search::try_asso_value): Use _jump. 
+	(Search::optimize): If option -m was given, iterate over different 
+	values for _initial_asso_value and _jump. 
+	* doc/gperf.texi (Algorithmic Details): Document option -m. 
+	* tests/test-6.exp: Update. 
+ 
+2002-11-03 Bruno Haible <bruno@clisp.org> 
+ 
+	Bug fix: When option -j 0 was used without option -r, the output was 
+	not random. 
+	* src/search.h (Search::prepare_asso_values): New method declaration. 
+	* src/search.cc (Search::prepare_asso_values): New method, extracted 
+	from Search::init_asso_values. Call srand also when "-j 0" was given. 
+	(Search::optimize): Call prepare_asso_values(). 
+ 
+	* src/hash-table.h (Hash_Table::_ignore_length, Hash_Table::equal): 
+	Declare as const. 
+	* src/hash-table.cc (Hash_Table::equal): Declare as const. 
+	* src/input.h (Input::_factory): Declare as const. 
+	* src/keyword-list.h (Keyword_List::first, KeywordExt_List::first): 
+	Declare as const. 
+	* src/keyword-list.icc (Keyword_List::first, KeywordExt_List::first): 
+	Declare as const. 
+	* src/output.h (Output::num_hash_values, Output::output_constants, 
+	Output::output_hash_function, Output::output_keylength_table, 
+	Output::output_keyword_table, Output::output_lookup_array, 
+	Output::output_lookup_tables, Output::output_lookup_function_body, 
+	Output::output_lookup_function, Output::_array_type, 
+	Output::_additional_code, Output::_include_src, Output::_total_keys, 
+	Output::_total_duplicates, Output::_max_key_len, Output::_min_key_len): 
+	Declare as const. 
+	* src/output.cc (Output::num_hash_values, Output::output_constants, 
+	Output::output_hash_function, Output::output_keylength_table, 
+	Output::output_keyword_table, Output::output_lookup_array, 
+	Output::output_lookup_tables, Output::output_lookup_function_body, 
+	Output::output_lookup_function): Declare as const. 
+	* src/search.h (Search::merge, Search::merge_sort, 
+	Search::compute_occurrence, Search::already_determined, 
+	Search::keyword_list_length, Search::max_key_length, 
+	Search::get_max_keysig_size, Search::compute_hash, 
+	Search::sort_by_occurrence): Declare as const. 
+	* src/search.cc (Search::merge, Search::merge_sort, 
+	Search::compute_occurrence, Search::already_determined, 
+	Search::keyword_list_length, Search::max_key_length, 
+	Search::get_max_keysig_size, Search::compute_hash, 
+	Search::sort_by_occurrence): Declare as const. 
+ 
+	* src/output.cc (Output::output): Set char_to_index to a cast in all 
+	cases. Avoids gcc warnings on the generated code. 
+ 
+	* src/output.cc (Output_Enum): Prepend an underscore to field names. 
+	(Output_Expr1): Likewise. 
+	(Output::output_hash_function): Simplify the special case for "-k 1,$". 
+ 
+	* src/search.h (Search::init_asso_values, Search::find_asso_values): 
+	New declarations. 
+	(Search::try_asso_value): Renamed from Search::affects_prev. 
+	(Search::change_some_asso_value): Renamed from Search::change. 
+	(Search::set_asso_max, Search::get_asso_max): Remove methods. 
+	(Search::_union_set): New field. 
+	* src/search.cc (Search::init_asso_values): New method, extracted 
+	from Search::optimize. 
+	(Search::try_asso_value): Renamed from Search::affects_prev. Take the 
+	iteration count as argument. 
+	(Search::change_some_asso_value): Renamed from Search::change. Don't 
+	make union_set static. Don't increment _fewest_collisions here. 
+	(Search::find_asso_values): New method, extracted from 
+	Search::optimize. 
+	(Search::optimize); Update. 
+ 
+	* src/search.h (Search::compute_hash): Renamed from Search::hash. 
+	(Search::compute_disjoint_union): Remove declaration. 
+	(Search::sort_by_occurrence): Renamed from Search::sort_set. 
+	* src/search.cc (Search::compute_hash): Renamed from Search::hash. 
+	(compute_disjoint_union): Renamed from Search::compute_disjoint_union. 
+	(Search::sort_by_occurrence): Renamed from Search::sort_set. 
+	(Search::change): Simplify loop. 
+ 
+	* src/search.h (Search::clear_determined): New declaration. 
+	* src/search.cc (Search::clear_determined): New method. 
+	(Search::already_determined): Optimize. 
+	(Search::reorder): Even when the next keyword after the current one 
+	is completely determined, move all determined keywords after the 
+	current one. 
+ 
+	Compute the occurrences after removal of duplicates, not before. 
+	* src/keyword.h (KeywordExt::init_selchars): Remove occurrences 
+	argument. 
+	* src/keyword.cc (KeywordExt::init_selchars): Likewise. 
+	* src/search.cc (Search::prepare): Reorder the code. Compute the 
+	occurrences after removal of duplicates. 
+	(Search::merge_sort): Optimize the loop. 
+	(Search::compute_occurrence): Renamed from Search::get_occurrence. 
+	* src/search.h (Search::compute_occurrence): Renamed from 
+	Search::get_occurrence. 
+	* tests/chill.exp: Regenerated. 
+ 
+	Bug fix: The hash table could fail to detect duplicates, between 
+	keywords of different length, when option -n (option[NOLENGTH]) was 
+	given. 
+	* src/hash-table.h (Hash_Table::Hash_Table): Pass table size, not 
+	vector and vector size as arguments. 
+	(Hash_Table::_log_size): New field. 
+	(Hash_Table::equal): New declaration. 
+	* src/hash-table.cc (size_factor): New variable. 
+	(Hash_Table::Hash_Table): Pass table size, not vector and vector size 
+	as arguments. Allocate the vector here. 
+	(Hash_Table::~Hash_Table): Deallocate the vector here. 
+	(Hash_Table::equal): New function. 
+	(Hash_Table::insert): Use it. Don't use item->_allchars_length for the 
+	increment if _ignore_length is true. 
+	* src/search.cc (TABLE_MULTIPLE): Remove variable. 
+	(Search::prepare): Update. 
+ 
+2002-11-02 Bruno Haible <bruno@clisp.org> 
+ 
+	Provide documentation also in PDF format. 
+	* doc/Makefile.in (pdfdir, TEXI2PDF): New variables. 
+	(all): Depend on pdf. 
+	(pdf, gperf.pdf): New rules. 
+	(maintainer-clean): Remove the PDF file. 
+ 
+	* src/keyword-list.icc: New file, extracted from keyword-list.h. 
+	* src/keyword-list.h: Include keyword-list.icc. Move inline methods 
+	to there. 
+	* src/keyword-list.cc: Include keyword-list.icc. 
+	* src/Makefile.in (KEYWORD_LIST_H): Add keyword-list.icc. 
+ 
+	* lib/hashpjw.h (hashpjw): Change argument type to 'unsigned char *'. 
+	* lib/hash.cc (hashpjw): Likewise. 
+	* src/keyword.icc: New file. 
+	* src/keyword.h: Include keyword.icc. 
+	(KeywordExt::_selchars): Change type to 'unsigned char *'. 
+	* src/keyword.cc: Include keyword.icc. 
+	(Keyword::Keyword, KeywordExt::KeywordExt): Move to keyword.icc. 
+	(sort_char_set): Change argument type to 'unsigned char *'. 
+	(KeywordExt::init_selchars): Update. 
+	* src/search.h (Search::compute_disjoint_union): Change argument types 
+	to 'unsigned char *'. 
+	(Search::sort_set): Likewise. 
+	(Search::affects_prev): Change argument type to 'unsigned char'. 
+	* src/search.cc (Search::prepare): Initialize _duplicate_link here. 
+	(Search::get_occurrence, Search::set_determined, 
+	Search::already_determined, Search::hash): Update. 
+	(Search::compute_disjoint_union): Change argument types to 
+	'unsigned char *'. 
+	(Search::sort_set): Likewise. 
+	(Search::affects_prev): Change argument type to 'unsigned char'. 
+	(Search::change): Update. 
+	* src/Makefile.in (KEYWORD_H): Add keyword.icc. 
+ 
+	* src/options.cc (Options::parse_options): Fix error message. 
+ 
+	* src/read-line.h (Read_Line::Read_Line): Make FILE* argument 
+	mandatory. Move body to read-line.icc. 
+	* src/read-line.icc (Read_Line::Read_Line): New constructor. 
+	* src/input.h (Input::Input): Add FILE* argument. 
+	* src/input.cc (Input::Input): Likewise. 
+	* src/main.cc (main): Pass stdin to Input constructor. 
+ 
+	* src/options.h (DEFAULTCHARS): Remove. 
+	(Positions::MAX_KEY_POS): Set to 255. 
+	(Positions::_positions): Increase array size. 
+	(PositionIterator::EOS): Set to -1. 
+	(PositionIterator::_index): Change type to 'unsigned int'. 
+	* src/options.icc (Positions::Positions): Don't store 
+	PositionIterator::EOS. 
+	(PositionIterator::next): Produce PositionIterator::EOS here. 
+	* src/options.cc (Options::long_usage): Use MAX_KEY_POS, not 
+	MAX_KEY_POS-1. 
+	(PositionStringParser): Rename field _size to _in_range. Rename 
+	field _curr_value to _range_curr_value. Rename field _upper_bound 
+	to _range_upper_bound. 
+	(PositionStringParser::nextPosition): Comments. 
+	(Options::Options): Update. 
+	(Options::~Options): Update. 
+	(long_options): Use NULL, not 0. 
+	(Options::parse_options): Set BAD_VALUE to -2; -1 is now EOS. Bug fix: 
+	Check against array overflow when more than MAX_KEY_POS positions are 
+	given. Don't store PositionIterator::EOS. 
+	Check against extra arguments before opening the input file. 
+	* src/output.cc (Output::output_hash_function): Change test which 
+	was for option[DEFAULTCHARS]. 
+	* tests/test-6.exp: Update. 
+ 
+	* src/options.h (Options::get_delimiters): Renamed from 
+	Options::get_delimiter. 
+	* src/options.icc (Options::get_delimiters): Renamed from 
+	Options::get_delimiter. 
+	* src/input.cc (Input::read_keys): Update. 
+ 
+	Bug fix. 
+	* src/options.cc (Options::print_options): Escape backquote inside 
+	double-quoted strings. 
+ 
+	Bug fix. 
+	* src/keyword.cc (KeywordExt::init_selchars): Avoid comparison with 
+	uninitialized member variable. Found with 'valgrind'. 
+ 
+	* src/version.cc: Include version.h. 
+	* src/Makefile.in (OBJECTS): Reorder. 
+	(KEYWORD_H, KEYWORD_LIST_H, INPUT_H, SEARCH_H, OUTPUT_H): New 
+	variables. 
+	(HASH_TABLE_H): Update. 
+	(options.o, read-line.o, keyword.o, keyword-list.o, input.o, search.o, 
+	output.o, main.o): Update dependencies. 
+ 
+	* src/vectors.h: Remove file. 
+	* src/vectors.cc: Remove file. 
+	* src/search.h: Don't include vectors.h. 
+	(Search): Don't inherit from Vectors. New fields _alpha_size, 
+	_occurrences, _asso_values. 
+	(Search::_determined, Search::get_occurrence, Search::set_determined, 
+	Search::already_determined, Search::hash, Search::sort_set): Make 
+	nonstatic. 
+	* src/search.cc (Search::Search): Initialize _alpha_size, _occurrences, 
+	_asso_values, _determined. 
+	(Search::optimize, Search::~Search): Update. 
+	* src/output.h: Don't include vectors.h. 
+	(Output): Remove field _v. New fields _alpha_size, _occurrences, 
+	_asso_values. 
+	(Output::Output): Replace Vectors* argument with alpha_size, 
+	occurrences, asso_values. 
+	* src/output.cc (Output::Output): Replace Vectors* argument with 
+	alpha_size, occurrences, asso_values. 
+	(Output::output_hash_function): Update. 
+	* src/main.cc (main): Don't set Vectors::ALPHA_SIZE. 
+	Pass _alpha_size, _occurrences, _asso_values from Search to Output. 
+	* src/keyword.h: Don't include vectors.h. 
+	* src/Makefile.in (OBJECTS): Remove vectors.o. 
+	(VECTORS_H): Remove variable. 
+	(vectors.o): Remove rule. 
+ 
+	* src/search.h: New file, combines src/key-list.h, src/gen-perf.h. 
+	* src/search,cc: New file, combines src/key-list.cc, src/gen-perf.cc. 
+	* src/key-list.h: Remove file. 
+	* src/key-list.cc: Remove file. 
+	* src/gen-perf.h: Remove file. 
+	* src/gen-perf.cc: Remove file. 
+	* src/main.cc (KeywordExt_Factory): Moved here from gen-perf.cc. 
+	(main): Inline some code from gen-perf.cc. 
+	* src/keyword.h (KeywordExt::init_selchars): Take the occurrences 
+	vector as argument. 
+	* src/keyword.cc (KeywordExt::init_selchars): Take the occurrences 
+	vector as argument. 
+	* src/input.cc (Input::set_output_types): Initialize _array_type, 
+	_return_type, _struct_tag. 
+	(Input::read_keys): Initialize _additional_code. 
+	* src/Makefile.in (OBJECTS): Add search.o. 
+	Remove key-list.o, gen-perf.o. 
+	(KEY_LIST_H, GEN_PERF_H): Remove variables. 
+	(gen-perf.o, key-list.o): Remove rules. 
+	(search.o): New rule. 
+ 
+	* *, */*: Update copyright notice to GPL version 2. 
+ 
+	* src/keyword-list.h (Keyword_List): New class. 
+	(KeywordExt_List): Inherit from it. 
+	* src/keyword-list.cc (Keyword_List::Keyword_List): New constructor. 
+	(KeywordExt_List::KeywordExt_List): Update. 
+	* src/input.h (Input::Input): Add Keyword_Factory argument. 
+	(Input::_factory): New field. 
+	(Input::_head): Change type to Keyword_List*. 
+	(Input::parse_line): New declaration. 
+	* src/input.cc (Input::Input): New constructor. 
+	(Input::parse_line): Renamed from parse_line. Use the _factory. 
+	(Input::read_keys): Update. 
+	* src/key-list.cc (KeywordExt_Factory): New class. 
+	(Key_List::read_keys): Pass a KeywordExt_Factory as Input constructor 
+	argument. 
+ 
+	Avoid g++ -Wold-style-cast warnings. 
+	* src/bool-array.icc: Use new-style casts. 
+	* src/gen-perf.cc: Likewise. 
+	* src/input.cc: Likewise. 
+	* src/key-list.cc: Likewise. 
+	* src/keyword.cc: Likewise. 
+	* src/options.cc: Likewise. 
+	* src/output.cc: Likewise. 
+	* src/hash-table.cc: Likewise. Remove (char *) cast in memset argument. 
+ 
+	* src/keyword-list.h (KeywordExt_List): Don't inherit from KeywordExt. 
+	(KeywordExt_List::KeywordExt_List): Take a KeywordExt* as argument. 
+	(KeywordExt_List::_car): New field. 
+	(KeywordExt_List::first): Use it. 
+	* src/keyword-list.cc (KeywordExt_List::KeywordExt_List): Take a 
+	KeywordExt* as argument. 
+	* src/input.cc (parse_line): Create the KeywordExt separately. 
+ 
+	Start using bool. 
+	* src/bool-array.h (Bool_Array::set_bit): Change return type to bool. 
+	* src/bool-array.icc (Bool_Array::set_bit): Likewise. 
+	* src/gen-perf.h (Gen_Perf::affects_prev): Likewise. 
+	* src/gen-perf.cc (Gen_Perf::affects_prev): Likewise. 
+	* src/hash-table.h (Hash_Table::_ignore_length): Change type to bool. 
+	(Hash_Table::Hash_Table): Change 3rd argument type to bool. 
+	* src/hash-table.cc (Hash_Table::Hash_Table): Likewise. 
+	* src/input.h (Input::_additional_code): Change type to bool. 
+	* src/input.cc (Input::read_keys): Update. 
+	* src/key-list.h (Key_List::_occurrence_sort, Key_List::_hash_sort, 
+	Key_List::_additional_code): Change type to bool. 
+	(Key_List::_determined): Change element type to bool. 
+	(Key_List::already_determined): Change return type to bool. 
+	* src/key-list.cc (Key_List::_determined): Change element type to bool. 
+	(Key_List::set_determined): Update. 
+	(Key_List::already_determined): Change return type to bool. 
+	(Key_List::reorder, Key_List::sort, Key_List::Key_List): Update. 
+	* src/options.h (Positions::sort): Change return type to bool. 
+	(Options::operator[]): Likewise. 
+	* src/options.icc (Positions::sort): Change return type to bool. 
+	(Options::operator[]): Likewise. 
+	* src/output.h (Output::Output): Change 5th argument type to bool. 
+	(Output::_additional_code): Change type to bool. 
+	* src/output.cc (Output::Output): Change 5th argument type to bool. 
+ 
+2002-10-16 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/*.h: Align all member names at column 24. 
+ 
+2002-10-15 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/input.h: New file. 
+	* src/input.cc: New file, extracted from key-list.cc. 
+	* src/key-list.h (Key_List): Don't inherit from Read_Line. 
+	(Key_List::get_special_input, 
+	Key_List::save_include_src, Key_List::get_array_type, 
+	Key_List::strcspn, Key_List::set_output_types): Remove methods. 
+	* src/key-list.cc (Key_List::get_special_input, 
+	Key_List::save_include_src, Key_List::get_array_type, 
+	Key_List::strcspn, Key_List::set_output_types, parse_line): Move to 
+	src/input.cc. 
+	(Key_List::read_keys): Use Input::read_keys. 
+	(Key_List::Key_List): Update. 
+	* src/gen-perf.cc: Update. 
+	* src/Makefile.in (OBJECTS): Add input.o. 
+	(input.o): New rule. 
+ 
+2002-10-14 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/options.cc: Don't include "vector.h". 
+	(Options::parse_options): Don't initialize Vectors::ALPHA_SIZE here. 
+	* src/vectors.cc (Vectors::ALPHA_SIZE): Don't initialize here. 
+	* src/gen-perf.cc (Gen_Perf::Gen_Perf): Initialize Vectors::ALPHA_SIZE. 
+ 
+	* src/options.h (Positions): New class. 
+	(PositionIterator): New class. 
+	(Options::parse_options): Renamed from Options::operator(). 
+	(Options::get_asso_max, Options::set_asso_max): Move to class Key_List. 
+	(Options::reset, Options::get): Remove, replaced by class 
+	PositionIterator. 
+	(Options::get_initial_asso_value): Renamed from Options::initial_value. 
+	(Options::key_sort): Remove, replaced by Positions::sort. 
+	(Options): Make all fields and methods non-static. 
+	* src/options.icc (Positions::Positions, Positions::operator[], 
+	Positions::get_size, Positions::pointer, Positions::set_size, 
+	Positions::sort, PositionIterator::PositionIterator, 
+	PositionIterator::next): New methods. 
+	(Options::get_initial_asso_value): Renamed from Options::initial_value. 
+	(Options::get_size_multiple): New method. 
+	(Options::get_key_positions): New method. 
+	(Options::get_max_keysig_size): Implement using _key_positions. 
+	* src/options.cc (Options::long_usage): Split big string into small 
+	pieces. 
+	(PositionStringParser): Prefix field names with _. 
+	(Options::Options): Update. 
+	(Options::~Options): Fix explanation of of _size_multiple. Don't print 
+	_key_positions if it is effectively ignored. 
+	(Options::parse_options): Renamed from Options::operator(). Update. 
+	* src/key-list.h (Key_List): New field _size. New methods get_asso_max, 
+	set_asso_max, get_max_keysig_size. 
+	* src/key-list.cc (Key_List::read_keys): Don't make side effects on 
+	options. 
+	(Key_List::dump): Use Key_List::get_max_keysig_size() instead of 
+	Options::get_max_keysig_size(). 
+	(Key_List::get_max_keysig_size): New function. 
+	* src/hash-table.cc (Hash_Table::~Hash_Table): Compute the field 
+	width on the fly if option[ALLCHARS]. 
+	* src/gen-perf.cc (Gen_Perf::Gen_Perf): Update, 
+	Use Options::get_size_multiple() instead of Options::get_asso_max(). 
+	Use Key_List::get_asso_max() instead of Options::get_asso_max(). Use 
+	Key_List::get_max_keysig_size() instead of 
+	Options::get_max_keysig_size(). 
+	(Gen_Perf::affects_prev): Likewise. 
+	(Gen_Perf::change): Likewise. 
+	* src/keyword.cc: Update. 
+	* src/main.cc: Update. 
+	* src/output.cc: Update. 
+	* tests/test-6.exp: Update. 
+ 
+2002-10-13 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/bool-array.*: Some polishing. 
+ 
+	* src/options.h (Options::operator=, Options::operator!=): Remove 
+	unused methods. 
+	* src/options.icc (Options::operator=, Options::operator!=): Remove. 
+ 
+	* src/*.h: Prefix all field names with _. 
+	* src/*.cc, src/*.icc: Update. 
+ 
+	* src/*: Simplify declarations of functions without arguments. 
+ 
+2002-10-04 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/output.h: New file, extracted from key-list.h. 
+	* src/output.cc: New file, extracted from key-list.cc. 
+	* src/key-list.h (Key_List): Make some fields protected. Move output 
+	routines to src/output.h. 
+	* src/key-list.cc: Move output routines to src/output.cc. 
+	* src/gen-perf.cc (Gen_Perf::doit_all): Use class Output. 
+	* src/Makefile.in (OBJECTS): Add output.o. 
+	(output.o): New rule. 
+ 
+2002-10-03 Bruno Haible <bruno@clisp.org> 
+ 
+	* src/iterator.h: Remove file. 
+	* src/iterator.cc: Remove file. 
+	* src/options.cc: (PositionStringParser): New class, taken from old 
+	iterator.cc. 
+	* src/Makefile.in (OBJECTS): Remove iterator.o. 
+	(ITERATOR_H): Remove variable. 
+	(iterator.o): Remove rule. 
+ 
+	* src/keyword-list.h: New file. 
+	* src/keyword-list.cc: New file. 
+	* src/list-node.h: Remove file. 
+	* src/list-node.cc: Remove file. 
+	* src/keyword.h (KeywordExt::init_selchars): New declaration. 
+	* src/keyword.cc (sort_char_set, KeywordExt::init_selchars): New, from 
+	old list-node.cc. 
+	* src/gen-perf.cc: Replace List_Node by KeywordExt or KeywordExt_List, 
+	as appropriate. 
+	* src/hash-table.h: Likewise. 
+	* src/key-list.h: Likewise. 
+	* src/key-list.cc: Likewise. 
+	* src/Makefile.in (OBJECTS): Remove list-node.o, add keyword-list.o. 
+	(LIST_NODE_H): Remove macro. 
+	(list-node.o): Remove rule. 
+	(keyword-list.o): New rule. 
+ 
+	* src/keyword.h (KeywordExt): New class. 
+	* src/keyword.cc (KeywordExt): New constructor. 
+	* src/list-node.h (List_Node): Inherit from KeywordExt. 
+	* src/list-node.cc: Update. 
+	* src/gen-perf.cc: Update. 
+	* src/hash-table.cc: Update. 
+	* src/key-list.cc: Update. 
+	(output_keyword_entry): Change argument type to KeywordExt*. 
+ 
+	* src/keyword.h: New file. 
+	* src/keyword.cc: New file. 
+	* src/list-node.h (List_Node): Extend Keyword. 
+	* src/list-node.cc: Update. 
+	* src/gen-perf.cc: Update. 
+	* src/hash-table.cc: Update. 
+	* src/key-list.cc: Update. 
+	* src/Makefile.in (OBJECTS): Add keyword.o. 
+	(keyword.o): New rule. 
+ 
+	* src/key-list.cc (Key_List::read_keys): Allocate the memory for the 
+	hash table using 'new'. 
+	(Key_List::output_lookup_array): Allocate the memory for the duplicates 
+	array using 'new'. 
+	* src/options.h (LARGE_STACK_ARRAYS): Remove definition. 
+	* src/main.cc (main): Remove setrlimit call. 
+	* src/configure.in: Don't test for unistd.h, sys/time.h, 
+	sys/resource.h, getrlimit, setrlimit. 
+ 
+	* src/bool-array.h (Bool_Array): Make all members non-static. 
+	Add an argument to the constructor. Remove init(), rename reset() to 
+	clear(), rename find() to set_bit(). 
+	* src/bool-array.icc: Move init() code into the constructor. 
+	Rename reset() to clear(), rename find() to set_bit(). 
+	* src/gen-perf.h (Gen_Perf): Add collision_detector member. 
+	* src/gen-perf.cc: Update. 
+ 
+	* src/gen-perf.h (Gen_Perf::doit_all): Renamed from 
+	Gen_Perf::operator (). 
+	* src/gen-perf.cc (Gen_Perf::doit_all): Renamed from 
+	Gen_Perf::operator (). 
+	* src/main.cc: Update. 
+ 
+	* src/read-line.h (Read_Line::read_next_line): Renamed from 
+	Read_Line::get_line. 
+	* src/read-line.icc: Likewise. 
+	* src/read-line.cc: Update. 
+	* src/key-list.cc: Update. 
+ 
+	* lib/getline.h: New file. 
+	* lib/getline.cc: New file. 
+	* lib/Makefile.in (OBJECTS): Add getline.o. 
+	(getline.o): New rule. 
+	* src/read-line.h (Read_Line::readln_aux): Remove declaration. 
+	* src/read-line.cc (Read_Line::readln_aux): Remove function. 
+	* src/read-line.icc (Read_Line::get_line): Use ::get_line. 
+	* src/options.h (LARGE_STACK): Remove macro. 
+ 
+	* src/bool-array.h (STORAGE_TYPE): Remove type. 
+	Use 'unsigned int' instead of STORAGE_TYPE. 
+	* src/bool-array.cc: Likewise. 
+	* src/bool-array.icc: Likewise. 
+	* src/gen-perf.cc: Likewise. 
+ 
+	* src/new.cc: Remove file. 
+	* src/Makefile.in (OBJECTS): Remove new.o. 
+	(new.o): Remove rule. 
+	* src/configure.in: Remove test for HAVE_THROW_DECL. 
+	* acconfig.h: Remove file. 
+ 
+	* src/trace.h: Remove file. 
+	* src/trace.cc: Remove file. 
+	* src/Makefile.in (OBJECTS): Remove trace.o. 
+	(TRACE_H): Remove variable. 
+	(trace.o): Remove rule. 
+	Update all dependencies. 
+	* src/bool-array.h, src/bool-array.cc, src/bool-array.icc: Don't use T. 
+	* src/gen-perf.cc: Likewise. 
+	* src/hash-table.cc: Likewise. 
+	* src/iterator.cc: Likewise. 
+	* src/key-list.cc: Likewise. 
+	* src/list-node.cc: Likewise. 
+	* src/main.cc: Likewise. 
+	* src/new.cc: Likewise. 
+	* src/options.h, src/options.cc, src/options.icc: Likewise. 
+	* src/read-line.h, src/read-line.cc, src/read-line.icc: Likewise. 
+ 
+	* tests/Makefile.in: Use gperf option -I, to avoid gcc-3.x warnings. 
+	* tests/test.c: Don't use gets(), to avoid warnings. 
+ 
+2001-08-02 Bruno Haible <bruno@linuix.math.u-bordeaux.fr> 
+ 
+	* doc/gperf.texi: Change bug report address to <bug-gnu-gperf@gnu.org>. 
+	* README: Updated. 
+ 
+2000-12-18 Bruno Haible <bruno@linuix.math.u-bordeaux.fr> 
+ 
+ * src/configure.in: Add check for rand() in libm. Needed for BeOS. 
+ * src/Makefile.in (LIBS): Use @GPERF_LIBM@ instead of hardwiring -lm. 
+ 
+2000-11-20 Bruno Haible <bruno@linuix.math.u-bordeaux.fr> 
+ 
+ * doc/help2man: Update to version 1.23. 
+ 
+2000-09-26 Bruno Haible <bruno@linuix.math.u-bordeaux.fr> 
+ 
+ * gperf-2.7.2 released. 
+ 
+ * doc/gperf.texi: Add a second bug report address 
+ <gperf-bugs@lists.sourceforge.net>. 
+ * README: Updated. 
+ 
+2000-08-28 Bruno Haible <bruno@linuix.math.u-bordeaux.fr> 
+ 
+ * lib/getopt.h (struct option): Use "const" also when compiling in 
+ C++ mode. Avoids warnings from Sun CC and HP-UX aCC. 
+ 
+ * doc/Makefile.in (docdir): Change from $(datadir)/doc/@PACKAGE@ to 
+ $(prefix)/doc/@PACKAGE@, following the newest GNU standards. 
+ 
+2000-08-20 Bruno Haible <bruno@linuix.math.u-bordeaux.fr> 
+ 
+ * src/version.cc: Bump version number to 2.7.2. 
+ * doc/gperf.texi: Likewise. 
+ 
+ * doc/texinfo.tex: Update to post-texinfo-4.0 version. @code in the 
+ title page now chooses a larger font. The overall layout of the 
+ text is denser. 
+ 
+ * AUTHORS: New file. 
+ 
+ * tests/Makefile.in (all): Add check-lang-utf8 and check-lang-ucs2. 
+ (check-lang-utf8, check-lang-ucs2): New targets. 
+ (clean): Remove lu8out and lu2out. 
+ * tests/lang-utf8.gperf, tests/lang-utf8.exp: New files. 
+ * tests/lang-ucs2.gperf, tests/test2.c, tests/lang-ucs2.in, 
+ tests/lang-ucs2.exp: New files. 
+ 
+ Allow the use of embedded NULs in keys. 
+ * lib/hash.h (hashpjw): Add a length argument. 
+ * lib/hash.cc (hashpjw): Likewise. Don't stop when encountering a NUL 
+ character. 
+ * src/hash-table.h (Hash_Table constructor): Add ignore_len argument. 
+ (Hash_Table::ignore_length): New field. 
+ (Hash_Table::insert): Renamed from Hash_Table::operator(). Remove 
+ ignore_length argument. 
+ * src/hash-table.cc (NIL): Remove macro. 
+ (Hash_Table constructor): Add ignore_len argument. Use it to 
+ initialize ignore_length. 
+ (Hash_Table destructor): Specify explicit length of char_set and 
+ key. 
+ (Hash_Table::insert): Renamed from Hash_Table::operator(). Remove 
+ ignore_length argument. Pass explicit length to hashpjw. Compare 
+ char_set using memcmp, not strcmp. 
+ * src/list-node.h (List_Node): Rename field length to key_length. 
+ New field char_set_length. 
+ (List_Node constructor): Accept key and rest, not the entire line. 
+ * src/list-node.cc (List_Node constructor): Accept key and rest, not 
+ the entire line. Don't NUL terminate key and char_set. Specify 
+ explicit length of key. Initialize char_set_length field. 
+ * src/key-list.cc: Include <ctype.h>. 
+ (parse_line): New function. 
+ (Key_List::read_keys): Call parse_line instead of new List_Node. 
+ Pass option[NOLENGTH] to Hash_Table constructor, not 
+ Hash_Table::insert. Specify explicit length of key and char_set. 
+ (Key_List::get_occurrence): Use explicit length of char_set. 
+ (Key_List::set_determined): Likewise. 
+ (Key_List::already_determined): Likewise. 
+ (output_string): Add length argument. Output unprintable characters 
+ using octal escape sequence. 
+ (output_keyword_entry): Use explicit length of key. 
+ (Key_List::output_lookup_array): Specify explicit length of key. 
+ (output_switch_case): Likewise. 
+ (Key_List::dump): Likewise. 
+ * src/gen-perf.h (Gen_Perf::compute_disjoint_union): Add two length 
+ arguments. 
+ * src/gen-perf.cc (Gen_Perf::compute_disjoint_union): Likewise. Don't 
+ stop when encountering NUL characters. Don't NUL terminate the 
+ result. 
+ (Gen_Perf::hash): Use explicit length of char_set. 
+ (Gen_Perf::change): Specify explicit length of key. 
+ * doc/gperf.texi: Document it. 
+ 
+ * doc/help2man: New file, help2man version 1.022. 
+ * Makefile.devel (all): Add doc/gperf.1. 
+ (doc/gperf.1): New target. 
+ * doc/gperf.1: Automatically generated. 
+ 
+ * mkinstalldirs: New file, from automake-1.4, grep-2.4.1, guile-1.4, 
+ libtool-1.3.3, make-3.79.1, tar-1.13. 
+ * src/Makefile.in (MKINSTALLDIRS): New variable. 
+ (install, installdirs): Use it instead of mkdir. 
+ * doc/Makefile.in (MKINSTALLDIRS): New variable. 
+ (install, installdirs): Use it instead of mkdir. 
+ 
+ * INSTALL: Update. 
+ 
+2000-08-19 Bruno Haible <bruno@linuix.math.u-bordeaux.fr> 
+ 
+ * src/key-list.cc (Output_Compare_Memcmp): New class. 
+ (Key_List::output_lookup_function): When option -l is given, use 
+ memcmp instead of strcmp or strncmp. 
+ 
+ * doc/gperf.texi: The bug report address is <bug-gnu-utils@gnu.org>. 
+ The download address is ftp.gnu.org. Remove mention of -a and -g 
+ options (now nops). Explain effect of -c option. 
+ 
+ * doc/configure.in (PACKAGE): New variable. 
+ * doc/Makefile.in (datadir, docdir): New variables. 
+ (dvidir, htmldir): Change values. 
+ (install, installdirs): Update. 
+ 
+ * src/configure.in: Rename cache variable gp_cxx_throw_decl to 
+ gp_cv_cxx_throw_decl. 
+ 
+ * src/key-list.cc (Key_List::output_hash_function): When outputting 
+ __inline, take advantage of C++ compilers which have inline. 
+ 
+ * src/key-list.cc (Output_Compare_Strncmp::output_comparison): 
+ After the call to strncmp, verify that expr2 is not longer than 
+ `len'. 
+ Reported by Carlo Wood <carlo@runaway.xs4all.nl>. 
+ 
+ * src/key-list.cc (Key_List::output_lookup_function_body): Avoid 
+ emitting the loop for dealing with duplicates if 
+ total_duplicates == 0. 
+ 
+ * src/key-list.cc (Key_List::read_keys): Don't accept an empty key. 
+ 
+ * src/Makefile.in (install, installdirs, uninstall): Respect 
+ $(DESTDIR). 
+ * doc/Makefile.in (install, installdirs, uninstall): Likewise. 
+ 
+ * src/options.cc (Options::print_options): Escape the arguments which 
+ contain special characters. 
+ 
+ * tests/c-parse.gperf: Updated from gcc-2.95.2/gcc/c-parse.gperf. 
+ * tests/objc.gperf: New file, from gcc-2.95.2/gcc/objc/objc.gperf. 
+ * tests/chill.gperf: New file, from gcc-2.95.2/gcc/ch/gperf. 
+ * tests/cplusplus.gperf: New file, from gcc-2.95.2/gcc/cp/gxx.gperf. 
+ * tests/gplus.gperf: Remove file. 
+ * tests/java.gperf: New file, from gcc-2.95.2/gcc/java/keyword.gperf. 
+ * tests/Makefile: Check them all. 
+ * tests/c-parse.exp: Renamed from tests/test-1.exp. 
+ * tests/modula2.exp: Renamed from tests/test-2.exp. 
+ * tests/cplusplus.exp: Renamed from tests/test-3.exp. 
+ * tests/gpc.exp: Renamed from tests/test-5.exp. 
+ 
+ * src/key-list.cc (output_switch_case): Add trailing semicolon to 
+ lengthptr assignment line. Fixes bug with -D and -S. 
+ From Reini Urban <rurban@sbox.tu-graz.ac.at>. Also reported by 
+ David Hunter. 
+ * tests/Makefile.in (check-lang-syntax): Perform each test with -D 
+ once without and once with duplicates. 
+ 
+ * src/key-list.cc (output_keyword_entry): Avoid outputting a struct 
+ initializer of the form {"key",}. 
+ 
+ * src/iterator.cc: Don't include <stream.h>. 
+ From Michael Deutschmann <ldeutsch@mail.netshop.net>. 
+ 
+ * tests/Makefile.in (VALIDATE, check-lang-syntax): Use $(srcdir) where 
+ appropriate. 
+ Reported by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>. 
+ 
+ * tests/validate: Don't run -traditional tests by default. 
+ 
+ * src/main.cc (main): Check for write error on stdout before returning. 
+ 
+ * src/Makefile.in (LDFLAGS): New definition, to catch the value given 
+ at configure time. 
+ 
+ Make the structure initializers customizable. Based on a patch by 
+ Kaveh R. Ghazi <ghazi@caip.rutgers.edu>. 
+ * src/options.h (Options::get_initializer_suffix, 
+ Options::initializer_suffix): New declarations. 
+ * src/options.icc (Options::get_initializer_suffix): New function. 
+ * src/options.cc (DEFAULT_INITIALIZER_SUFFIX): New constant. 
+ (Options::initializer_suffix): New variable. 
+ (Options::short_usage): Document option "-F". 
+ (Options::long_usage): Document option "-F". 
+ (Options constructor): Initialize initializer_suffix. 
+ (Options destructor): Dump initializer_suffix. 
+ (long_options): Add option "-F". 
+ (Options::operator()): Accept option "-F". Sets initializer_suffix. 
+ * src/key-list.cc (output_keyword_blank_entries): Output 
+ initializer_suffix. 
+ * doc/gperf.texi: Document option "-F". 
+ 
+ * COPYING: Replace with GPL version 2 (with new FSF address and Y2K 
+ safe year format). 
+ 
+ * doc/gpl.texinfo: New file. 
+ * doc/gperf.texi: Document it. 
+ * doc/Makefile.in (gperf.info, gperf.dvi, gperf.html, gperf_toc.html): 
+ Update dependencies. 
+ 
+ * doc/Makefile.in (MAKEINFO): Unset LANG while running makeinfo. 
+ 
+1998-05-20 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * doc/Makefile.in (gperf.dvi, clean): Remove gperf.cps. 
+ (install, installdirs, uninstall): Don't install gperf.dvi. The 
+ info and HTML documentations are sufficient for on-line use, and 
+ users who wish to print the documentation (in PS or DVI format) 
+ can do this directly off the source distribution. 
+ (DVIPS): Use "-D600" instead of "-Pljfour", for portability. 
+ 
+1998-05-20 Akim Demaille <demaille@inf.enst.fr> 
+ 
+ * doc/gperf.texi: Many modifications: 
+ (Output Format): Declare `hash' and `in_word_set' as functions. 
+ (Concept Index): New section. 
+ (Title page): Use standard presentation. 
+ (Top): Use @top instead of @unnumbered so that automatic master 
+ update works. 
+ (Motivation): Avoid spaces in @var. 
+ (Options): Use the standard name ``Invoking ...''. 
+ (Options): Declare also the long form of the options. 
+ (Options): Remove redundant @itemize when @table is used. 
+ 
+1998-05-08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> 
+ 
+ * aclocal.m4 (CL_PROG_INSTALL): Set cl_cv_path_install, not 
+ ac_cv_path_install. 
+ 
+Sat May 2 13:20:54 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * gperf-2.7 released. 
+ 
+Sat May 2 12:31:51 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * src/version.cc (version_string): Remove the "(C++ version)" suffix. 
+ It's redundant: the early C versions of gperf are called cperf. 
+ Reported by Karl Berry. 
+ * src/option.cc (Options::operator()): Trim the output of "gperf -v". 
+ 
+Thu Apr 16 13:22:16 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * lib/Makefile.in, src/Makefile.in: Don't use $(TARGET_ARCH). 
+ Solaris "make" sets it to a value not understood by "cc". 
+ 
+Wed Apr 15 23:52:14 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * lib/Makefile.in, src/Makefile.in: Don't use implicit rules. Don't 
+ use $<. AIX "make" and OSF/1 "make" have problems with both. 
+ * src/gen-perf.cc, src/key-list.cc: Cast free() argument to char*, 
+ otherwise it doesn't compile on SunOS 4. 
+ * src/key-list.h: Declare structs outside of other declarations, 
+ needed for OSF/1 cxx 5.5. 
+ * lib/getopt.h: Use prototypes if __STDC__ || __cplusplus. 
+ Don't give a prototype for getopt(), to avoid error on SunOS 4. 
+ * lib/getopt.c: Declare strncmp, to avoid warnings. 
+ 
+Tue Apr 14 23:24:07 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * lib/GetOpt.{h,cc}: Remove files. 
+ * lib/getopt.{h,c}, lib/getopt1.c: New files, from GNU libc. 
+ * lib/configure.in (AC_INIT): Search for hash.cc, not GetOpt.cc. 
+ * lib/Makefile.in (OBJECTS): Remove GetOpt.o, add getopt.o, getopt1.o. 
+ (getopt.o, getopt1.o, hash.o): Use explicit building rules. Some 
+ "make"s don't support to have both implicit rules for "%.o : %.c" 
+ and "%.o : %.cc" in the same Makefile. 
+ * lib/hash.{h,cc}: Remove #pragma; there are no templates here. 
+ * src/option.h (Options::usage): Remove. 
+ (Options::short_usage, Options::long_usage): Declare. 
+ * src/option.cc (Options::usage): Remove. 
+ (Options::short_usage, Options::long_usage): New functions. 
+ (long_options): New array. 
+ (Options::operator()): Use getopt_long instead of GetOpt::operator(), 
+ change all references to GetOpt members. 
+ 
+ * src/std-err.{h,cc}: Remove files. 
+ * src/gen-perf.cc, src/key-list.cc, list-node.cc, new.cc, options.cc: 
+ Call fprintf(stderr) instead of Std_Err::report_error(). 
+ * src/key-list.h, src/list-node.h, src/options.h: Don't use class 
+ Std_Err any more. 
+ * src/option.cc (program_name): New variable. 
+ * src/Makefile.in: Remove STD_ERR_H. 
+ (OBJECTS): Remove std-err.o. 
+ 
+Mon Mar 23 01:03:35 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * aclocal.m4, {lib,src,tests}/configure.in: Remove CL_CC_WORKS and 
+ CL_CXX_WORKS, already contained in autoconf 2.12. 
+ 
+ * src/gen-perf.cc, src/key-list.cc: Move some code from 
+ Gen_Perf::Gen_Perf() to Key_List::output(). 
+ * src/Makefile.in: Update dependencies. 
+ 
+ * src/options.{h,cc}: Remove option "-p". 
+ * src/key-list.cc (Key_List::set_output_types): Rewrite. 
+ (default_array_type, default_return_type): Remove. 
+ * src/key-list.cc: Adjust "const" handling. 
+ + With option "-t" [TYPE], don't emit wrong code if there is no 
+ space before the struct's opening brace. 
+ 
+Sun Mar 22 16:59:15 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * src/key-list.{h,cc}: Completely reorganized the output routines. 
+ Rewrote from scratch the output_switch() function. Use classes 
+ (Output_Constants, Output_Expr, Output_Compare) for abstraction. 
+ In particular: 
+ + Don't emit trailing whitespace and spurious blank lines. 
+ + Adjust indentation of the arrays. 
+ + Don't emit commas at the end of array initializers and 
+ struct initializers. 
+ + With option "-l" [LENTABLE], compare the length before 
+ fetching the word from memory. 
+ + With option "-S" [SWITCH], emit the comparison code just once, 
+ not once in every switch statement. 
+ + With option "-S" [SWITCH], choose the right switch statement 
+ through a binary search, not a linear search. 
+ + With option "-S" [SWITCH], emit straightforward comparisons 
+ instead of switch statements with just one "case" label. 
+ + With options "-S -p -t" [SWITCH, POINTER, TYPE], don't emit 
+ spurious empty elements at the beginning of the wordlist array. 
+ + With option "-D" [DUP] and not option "-S" [SWITCH], if there 
+ is no more room for duplicate entries in the lookup array, 
+ don't call `assert (i != 0)'. Instead, make the array larger :-) 
+ + With option "-D" [DUP], if there are no duplicates, don't 
+ automatically fall back to the non-"-D" algorithm. If the user 
+ wants the non-"-D" algorithm, he can just not specify "-D". 
+ + With option "-D" [DUP] and either options "-p -t" [POINTER, TYPE] 
+ or not option "-S" [SWITCH], don't emit spurious empty elements 
+ at the beginning of the wordlist array. 
+ + With option "-D" [DUP], simplify the detection and processing 
+ of duplicate entries in the lookup array. 
+ + With options "-D -l" [DUP, LENTABLE] and not option "-S" [SWITCH], 
+ don't forget to emit the lengthtable array. 
+ + With options "-D -l -S" [DUP, LENTABLE, SWITCH], don't forget to 
+ compare the lengths before comparing the strings. 
+ 
+ * src/gen-perf.cc: No need to include <assert.h>. 
+ * src/options.cc: Likewise. 
+ 
+ * src/options.cc: Don't use `errno' after freopen failed. 
+ * src/std-err.cc: `report_error' doesn't call strerror(errno) any 
+ more. No need to include <string.h> and <errno.h>. 
+ 
+ * tests/Makefile.in (check-*): Any difference between .exp and .out 
+ is a failure. Don't ignore whitespace differences. 
+ 
+ * tests/Makefile.in (check-lang-syntax): Add some more checks. 
+ 
+Fri Mar 20 00:54:54 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * tests/jscript.gperf: Renamed from tests/javascript.gperf, because 
+ of Minix and SVR2 14-character filename limit. 
+ * src/key-list.cc (output_string): New function. 
+ (Key_List::output_switch, Key_List::output_keyword_table): Call it. 
+ 
+ * src/options.{h,icc,cc} (get_wordlist_name): New function. Add 
+ option -W. 
+ * src/key-list.cc (Key_List::output_switch, 
+ Key_List::output_keyword_table, Key_List::output_lookup_function): 
+ Use it. 
+ Patch from William Bader <wbader@CSEE.Lehigh.Edu>. 
+ 
+ * src/version.cc: Bump version number directly from 2.5 to 2.7, 
+ because Schmidt's last release from 1991 carries version number 2.6. 
+ 
+Tue Jul 30 00:02:39 1991 Douglas C. Schmidt (schmidt at net4.ics.uci.edu) 
+ 
+ * Fixed a small bug in the Key_List::output_keyword_table routine 
+ that caused an extra newline to be printed if there where no 
+ leading blank entries... (who cares, right?!) 
+ 
+Mon Jul 29 22:05:40 1991 Douglas C. Schmidt (schmidt at net4.ics.uci.edu) 
+ 
+ * Modified the handling of the -E (emit enums rather than 
+ #defines) option in conjunction with the -G option. Now, if -G 
+ and -E are given the enums are generated outside the lookup 
+ function, rather than within it! 
+ 
+Mon Apr 8 18:17:04 1991 Doug Schmidt (schmidt at net4.ics.uci.edu) 
+ 
+ * Yucko, there was a bug in the handling of -c (and of course the 
+ new -I command in key-list.cc). Apparently when I added the 
+ super-duper hack that provided support for duplicate keys I 
+ forgot to update the strcmp output... 
+ 
+Mon Mar 9 02:19:04 1998 Bruno Haible <bruno@linuix.mathematik.uni-karlsruhe.de> 
+ 
+ * Moved the documentation to doc/, put the stuff borrowed from 
+ libg++ into lib/. 
+ * Rewrote all Makefile.in's for better compliance with GNU standards. 
+ * Autoconf based configuration. Rewrote all configure.in's. Added 
+ aclocal.m4, with macros from CLISP and CLN. Added Makefile.devel. 
+ * src/depend: Removed. Dependencies are now in src/Makefile.in. 
+ 
+ * src/bool-array.icc: New file, contains inline functions, from both 
+ src/bool-array.h and src/bool-array.cc. 
+ * src/options.icc: New file, contains inline functions, from both 
+ src/options.h and src/options.cc. 
+ * src/read-line.icc: New file, contains inline functions, from both 
+ src/read-line.h and src/read-line.cc. 
+ 
+ * src/bool-array.h: Don't include <std.h>. 
+ * src/bool-array.cc: Include <string.h>. 
+ * src/gen-perf.cc: No need to include <ctype.h>. Don't include 
+ <_G_config.h>. 
+ * src/hash-table.cc: Don't include <std.h> and <builtin.h>. Include 
+ <string.h> and lib/hash.h instead. 
+ * src/iterator.cc: Don't include <std.h>. 
+ * src/key-list.cc: Don't include <builtin.h>. Include <string.h> and 
+ <stdlib.h> instead. 
+ * src/list-node.cc: Don't include <std.h>. Include <stdlib.h> instead. 
+ Remove `index' hack. 
+ * src/main.cc: Don't include <_G_config.h>. 
+ * src/new.cc: Don't include <std.h>. Include <stdlib.h> instead. 
+ * src/options.cc: Don't include <builtin.h>. Include <string.h> and 
+ <stdlib.h> instead. 
+ * src/read-line.cc: Don't include <builtin.h>. Include <stdlib.h> 
+ instead. 
+ * src/std-err.cc: Don't include <std.h>. Include <string.h> (for Irix). 
+ * src/vectors.h: No need to include <stdio.h>. 
+ * src/version.cc: No need to include <stdio.h>. 
+ 
+ * src/bool-array.h: Change `STORAGE_TYPE' from int to unsigned int. 
+ * src/bool-array.{h,cc}: Change type of `Bool_Array::size' from int 
+ to unsigned int. 
+ * src/bool-array.{h,cc}: Change type of `Bool_Array::init' argument 
+ from STORAGE_TYPE to unsigned int. 
+ * src/gen-perf.{h,cc}: Change two `Gen_Perf::compute_disjoint_union' 
+ argument types from `char *' to `const char *'. 
+ * src/iterator.h: Change type of `Iterator::str' and argument of 
+ `Iterator::Iterator' from `char *' to `const char *'. 
+ * src/iterator.cc: Cast to `unsigned char' before calling `isdigit'. 
+ * src/key-list.{h,cc}: Change type of `Key_List::array_type', 
+ `Key_List::return_type', `Key_List::struct_tag', 
+ `Key_List::include_src', `default_array_type', `default_return_type' 
+ and return type of `Key_List::get_array_type', 
+ `Key_List::get_special_input', `Key_List::save_include_src' from 
+ `char *' to `const char *'. 
+ * src/key-list.cc: Change "pretty gross" assignment. 
+ * src/key-list.cc: Don't use `alloca', HP-UX CC lacks it. 
+ * lib/GetOpt.cc: Likewise. 
+ * src/key-list.cc (merge): Use iteration instead of recursion. 
+ * src/list-node.{h,cc}: Change type of `List_Node::key', 
+ `List_Node::rest', `List_Node::char_set' from `char *' to 
+ `const char *'. 
+ * src/new.cc: Don't use BUFSIZ. Conditionalize the throw() declaration. 
+ * src/read-line.h: Don't use BUFSIZ. 
+ * src/read-line.cc: Make CHUNK_SIZE a constant, and use allocate the 
+ buffers on the stack by default. Use memcpy for copying buffers. 
+ Include <string.h>. 
+ * src/read-line.icc (get_line): Use iteration instead of tail recursion. 
+ Don't call ungetc(EOF,stdin). 
+ * src/std-err.{h,cc}: Change type of `Std_Err::program_name' and of 
+ argument `Std_Err::report_error' from `char *' to `const char *'. 
+ * src/std-err.cc: `report_error' doesn't call `exit' any more. All 
+ callers changed to do that themselves. 
+ * src/trace.h: Make constructor/destructor calls non-inline. 
+ 
+ * src/key-list.cc (output_hash_function): If option[CPLUSPLUS], 
+ always make the hash function inline. 
+ (output): Declare the hash function inline, with the right name. 
+ * src/options.{h,cc}, src/gen-perf.cc, src/key-list.cc: Remove 
+ options -g, making it on by default. Remove option -a. Instead, 
+ introduce "-L KR-C", "-L C", "-L ANSI-C", "-L C++". 
+ * src/options.{h,cc}, src/key-list.cc: Add option -I. 
+ * src/key-list.cc: Don't emit "const" if compiling in mode "-L KR-C". 
+ * src/key-list.cc: Don't emit a comma at the end of an enum list. 
+ * src/main.cc: Remove COUNT_TIME code. 
+ * src/vectors.h, src/key-list.cc, src/options.cc, src/list-node.cc: 
+ ALPHA_SIZE defaults to 256 now. Add option -7. 
+ 
+ * tests/javascript.gperf: New file. 
+ * tests/jstest*.gperf, tests/validate: New tests. 
+ 
+Sat Jan 31 01:38:11 1998 Alexandre Oliva <oliva@dcc.unicamp.br> 
+ 
+	* src/Makefile.in ($(TARGETPROG)): Add $(CFLAGS). 
+ 
+Wed Jan 28 01:56:00 1998 Manfred Hollstein <manfred@s-direktnet.de> 
+ 
+	* configure.in (package_makefile_rules_frag): New and 
+	redirect stderr from ${srcdir}/config.shared to 
+	${package_makefile_rules_frag}. 
+	* src/configure.in: Ditto. 
+	* tests/configure.in: Ditto. 
+ 
+Fri Jan 23 08:00:41 1998 H.J. Lu (hjl@gnu.org) 
+ 
+	* gperf.texi (@ichapter): Changed to @chapter. 
+ 
+Wed Jan 14 09:16:48 1998 H.J. Lu (hjl@gnu.org) 
+ 
+	* src/key-list.cc, src/key-list.h (Key_List::strcspn): Don't 
+	define if strcspn is defined. 
+ 
+Fri Jan 24 13:23:47 1997 Mike Stump <mrs@cygnus.com> 
+ 
+	* src/new.cc (operator delete): Add the exception specification. 
+ 
+Mon Feb 5 19:29:16 1996 Per Bothner <bothner@kalessin.cygnus.com> 
+ 
+	* src/read-line.cc (Read_Line::readln_aux): Handle EOF if last	line 
+	has a length which is an exact multiple of CHUNK_SIZE. (Used to throw 
+	away the line's contents.) From Bruno Haible <haible@ilog.ilog.fr>. 
+	* src/Makefile.in ($(TARGETPROG)): Add -lm to link line. 
+ 
+Tue Jun 11 13:43:50 1996 Brendan Kehoe <brendan@lisa.cygnus.com> 
+ 
+	* src/list-node.cc (List_Node): Reorder init of nodes to 
+	match declaration order. 
+	* src/hash-table.cc (Hash_Table): Likewise. 
+ 
+Tue Oct 10 16:37:28 1995 Mike Stump <mrs@cygnus.com> 
+ 
+	* src/new.cc: Since malloc/delete are not paired, we cannot call 
+	free. 
+ 
+Wed Jan 4 12:40:14 1995 Per Bothner <bothner@kalessin.cygnus.com> 
+ 
+	* src/Makefile.in ($(TARGETPROG)): Link with $(LDFLAGS). 
+	Patch from John Interrante <interran@uluru.stanford.edu>. 
+ 
+Sat Nov 5 19:12:48 1994 Jason Merrill (jason@phydeaux.cygnus.com) 
+ 
+	* src/Makefile.in (LIBS): Remove. 
+ 
+Tue Oct 18 17:51:14 1994 Per Bothner <bothner@kalessin.cygnus.com> 
+ 
+	* src/std-err.cc: Use stderror, instead of the non-standard 
+	sys_nerr and sys_errlist. 
+ 
+Sat Sep 17 22:02:13 1994 Per Bothner (bothner@kalessin.cygnus.com) 
+ 
+	* src/key-list.cc (output_hash_function): 
+	Patch from William Bader <wbader@CSEE.Lehigh.Edu>. 
+ 
+Fri Jul 15 09:38:11 1994 Per Bothner (bothner@cygnus.com) 
+ 
+	* src/std-err.cc: #include <errno.h>, and only declare 
+	extern int errno if errno is not a macro. 
+ 
+Mon May 30 17:29:34 1994 Per Bothner (bothner@kalessin.cygnus.com) 
+ 
+	* Makefile.in (src_all, install): Make sure to add '/' after 
+	`pwd` in $rootme, as expected by FLAGS_TO_PASS. 
+ 
+Wed May 11 00:47:22 1994 Jason Merrill (jason@deneb.cygnus.com) 
+ 
+	Make libg++ build with gcc -ansi -pedantic-errors 
+	* src/options.h: Lose commas at end of enumerator lists. 
+ 
+Sun Dec 5 19:16:40 1993 Brendan Kehoe (brendan@lisa.cygnus.com) 
+ 
+	* src/hash-table.cc (Hash_Table::~Hash_Table): Don't pass an 
+	argument to fprintf, since it's not expecting one. 
+ 
+Fri Nov 26 19:03:18 1993 Per Bothner (bothner@kalessin.cygnus.com) 
+ 
+	* src/list-node.cc: #undef index, for the sake of broken NeXT, 
+ 
+Thu Nov 4 11:16:03 1993 Per Bothner (bothner@kalessin.cygnus.com) 
+ 
+	* Makefile.in (install): Use INSTALL_DATA for gperf.1. 
+ 
+Mon Oct 25 18:40:51 1993 Per Bothner (bothner@kalessin.cygnus.com) 
+ 
+	* src/key-list.cc (Key_List::read_keys): Use POW macro 
+	to increase hash table size to power of 2. 
+ 
+	* options.h (LARGE_STACK_ARRAYS): New flag. Defaults to zero. 
+	* gen-perf.cc, key-list.cc, read-line.cc: 
+	Only stack-allocate large arrays if LARGE_STACK_ARRAYS is set. 
+	* main.cc (main): Only call setrlimit (RLIMIT_STACK, ...) 
+	if LARGE_STACK_ARRAYS. 
+ 
+Mon Oct 4 17:45:08 1993 Per Bothner (bothner@kalessin.cygnus.com) 
+ 
+	* src/gen-perf.cc: Always use ANSI rand/srand instead of BSDisms. 
+ 
+Wed Aug 18 12:19:53 1993 Per Bothner (bothner@kalessin.cygnus.com) 
+ 
+	* Makefile.in (src_all): Make less verbose output. 
+ 
+Fri May 28 14:01:18 1993 Per Bothner (bothner@rtl.cygnus.com) 
+ 
+	* src/gen-perf.cc (Gen_Perf::change): Don't use gcc-specific 
+	2-operand conditional expression. 
+	* src/key-list.cc (Key_List::output_lookup_array): 
+	Don't use variable-size stack arrays, unless compiled by g++. 
+ 
+Tue May 4 14:08:44 1993 Per Bothner (bothner@cygnus.com) 
+ 
+	Changes (mostly from Peter Schauer) to permit compilation 
+	using cfront 3.0 and otherwise be ARM-conforming. 
+	* src/key-list.h: class Key_List must use public derivation 
+	of base class Std_Err (because Gen_Perf::operator() in gen-perf.cc 
+	calls Std_Err::report_error). 
+	* src/gen-perf.cc (Gen_Perf::affects_prev), src/hash-table.cc 
+	(Hash_Table::operator()): Don't use gcc-specific 2-operand 
+	conditional expression. 
+	* src/iterator.cc (Iterator::operator()): Don't use gcc-specific 
+	range construct in case label. 
+	* key-list.cc (Key_List::output_lookup_array, Key_List::read_keys), 
+	src/gen-perf.cc (Gen_Perf::operator(), src/read-line.cc 
+	(Read_Line::readln_aux): If not gcc, don't allocate 
+	variable-sized arrays on stack. 
+	* src/new.cc (operator new): Argument type should be size_t. 
+	* key-list.cc (Key_List::output_lookup_array, Key_List::read_keys), 
+	new/cc (::operator new): Don't use non-standard >?= operator. 
+ 
+Tue Apr 27 20:11:30 1993 Per Bothner (bothner@cygnus.com) 
+ 
+	* src/Makefile.in: Define TARGETPROG, and use it. 
+ 
+Mon Apr 19 00:29:18 1993 Per Bothner (bothner@cygnus.com) 
+ 
+	* Makefile.in, configure.in: Re-vamped configure scheme. 
+	* gperf.texinfo: Renamed to gperf.texi. 
+	* src/bool-array.{h,cc}: ANSIfy bzero->memset. 
+ 
+Sat Jan 30 20:21:28 1993 Brendan Kehoe (brendan@lisa.cygnus.com) 
+ 
+	* tests/Makefile.in (mostlyclean): Also delete aout, cout, m3out, 
+	pout, and preout. 
+ 
+Tue Dec 29 08:58:17 1992 Ian Lance Taylor (ian@cygnus.com) 
+ 
+	* Makefile.in: pass $(FLAGS_TO_PASS) to all calls to make. 
+	(FLAGS_TO_PASS): added INSTALL, INSTALL_DATA, INSTALL_PROGRAM. 
+ 
+Mon Dec 21 18:46:46 1992 Per Bothner (bothner@rtl.cygnus.com) 
+ 
+	* tests/expected.* renamed to *.exp to fit in 14 chars. 
+	* tests/Makefile.in: Update accordingly. 
+	Also rename output.* to *.out. 
+	* src/Makefile.in (clean): Remove gperf program. 
+ 
+Wed Dec 9 14:33:34 1992 Per Bothner (bothner@cygnus.com) 
+ 
+	* src/hash-table.cc, src/bool-array.h: ANSIfy bzero->memset. 
+ 
+Thu Dec 3 19:34:12 1992 Per Bothner (bothner@cygnus.com) 
+ 
+	* Makefile.in (distclean, realclean): Don't delete 
+	Makefile before recursing. 
+ 
+Fri Nov 6 13:41:49 1992 Per Bothner (bothner@rtl.cygnus.com) 
+ 
+	* key-list.{h,cc}: Remove MAX_INT (and similar) constant 
+	fields from Key_List class, and use INT_MAX (etc) from limits.h. 
+	* key-list.{h,cc}, options.{h,cc}, vectors.h: Removed all 
+	uses of initialized const fields, as they are non-standard 
+	- and their use was easy to do away with. Mostly, just 
+	made the constants static non-fields in the .cc file. 
+ 
+Mon Nov 2 13:10:11 1992 Per Bothner (bothner@cygnus.com) 
+ 
+	* tests/Makefile.in: When generating cinset.c, don't pass -C, 
+	since -C assumes an ANSI compiler. Add the -C flag (with -a) 
+	when generating test.out.3 instead. 
+	* tests/expected.out.3: Update accordingly. 
+ 
+Wed Aug 12 11:47:54 1992 Per Bothner (bothner@cygnus.com) 
+ 
+	* Makefile.in: Factor out common flags into $(FLAGS_TO_PASS). 
+	* Makefile.in: 'install-info' depends on gperf.info. 
+ 
+Mon Aug 10 11:39:52 1992 Ian Lance Taylor (ian@dumbest.cygnus.com) 
+ 
+	* Makefile.in, src/Makefile.in: always create installation 
+	directories. 
+ 
+Mon Jul 20 15:33:21 1992 Mike Stump (mrs@cygnus.com) 
+ 
+	* src/new.cc (operator new): Add cast from void * to char *, 
+	since it is not a standard conversion. 
+ 
+Wed Jun 17 16:25:30 1992 Per Bothner (bothner@rtl.cygnus.com) 
+ 
+	* src/gen-perf.cc: #include <_G_config.h> for _G_SYSV. 
+	* src/key-list.cc: alloca() hair. 
+	* src/main.cc (main): Only call getrlimit if _G_HAVE_SYS_RESOURCE. 
+	* Makefile,in, {src,test}/Makefile.in: Fix *clean rules. 
+ 
+Fri May 29 13:21:13 1992 Per Bothner (bothner@rtl.cygnus.com) 
+ 
+	* src/gen-perf.cc: Replace USG -> _G_SYSV. 
+ 
+Thu May 14 13:58:36 1992 Per Bothner (bothner@rtl.cygnus.com) 
+ 
+	* src/Makefile.in: Don't pass obsolete flag -DUNLIMIT_STACK. 
+	* tests/Makefile.in (clean): Fix. 
+ 
+Sat Mar 7 00:03:56 1992 K. Richard Pixley (rich@rtl.cygnus.com) 
+ 
+	* gperf.texinfo: added menu item hook. 
+ 
+Wed Feb 26 18:04:40 1992 K. Richard Pixley (rich@cygnus.com) 
+ 
+	* Makefile.in, configure.in: removed traces of namesubdir, 
+ -subdirs, $(subdir), $(unsubdir), some rcs triggers. Forced 
+ copyrights to '92, changed some from Cygnus to FSF. 
+ 
+Sun Jan 26 19:21:58 1992 Per Bothner (bothner at cygnus.com) 
+ 
+	* tests/Makefile.in: Use re-directed stdin instead of file 
+	name in argv. This allows us to remove the filename 
+	from the output, the expected output, and hence the diffs. 
+	(Note that the input file is in $(srcdir), which we cannot 
+	place in the expected out files.) 
+	* tests/expected.out.[1235]: Edit out input filename, 
+	to match new output. 
+ 
+Thu Jun 28 16:17:27 1990 Doug Schmidt (schmidt at brilliant) 
+ 
+	* Wow, first fix on the new job! There was a dumb error 
+ in Key_List::output_lookup_function, where I printed the 
+ string "&wordlist[key]" instead of the correct "&wordlist[index]". 
+ 
+	* Added a couple of #ifdefs for USG support. 
+ 
+Sun Jun 3 17:16:36 1990 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Updated the version number to 2.5 and sent to Doug Lea for release 
+ with the latest GNU libg++. 
+ 
+ * Changed the error handling when a keyword file cannot be opened 
+ (now calls perror). 
+ 
+Wed May 30 14:49:40 1990 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Instrumented the source code with trace statements automagically 
+ inserted using my new automated trace instrumentation tool! 
+ 
+Wed May 9 11:47:41 1990 Doug Schmidt (schmidt at siam.ics.uci.edu) 
+ 
+ * Really fixed the previous bug. Turns out that a small amount 
+ of logic had to be duplicated to handle static links that occur 
+ as part of dynamic link chains. What a pain!!! 
+ 
+Tue May 8 23:11:44 1990 Doug Schmidt (schmidt at siam.ics.uci.edu) 
+ 
+ * Fixed a stupid bug in Key_List::output_lookup_array that was 
+ causing incorrect counts to be generated when there were both 
+ static and dynamic links occurring for the same hash value. 
+ Also simplified the code that performs the logic in this routine. 
+ 
+Mon Apr 30 17:37:24 1990 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Fixed stupid bug in Key_List::output_lookup_array that was 
+ making the generated lookup[] array contain `chars' even 
+ when the values stored in the chars are greater than 127! 
+ 
+ * Changed the behavior of the -G (global table) option so that it 
+ will output the `length[]' array in the global scope along with 
+ the `word_list[]' array. 
+ 
+ * Fixed a stupid bug in Key_List::output_lookup_function that 
+ would always output the complicated `duplicate-handling' lookup 
+ logic, even when there were no duplicates in the input! 
+ 
+ * Yikes, had to modify a bunch of stuff in key-list.cc to correctly 
+ handle duplicate entries. Changed the generated code so that 
+ the MIN_HASH_VALUE is no longer subtracted off when calculating 
+ the hash value for a keyword. This required changing some other 
+ code by substituting MAX_HASH_VALUE for TOTAL_KEYS in several places. 
+ Finally, this means that the generated tables may contain leading 
+ null entries, but I suppose it is better to trade-off space to get 
+ faster performance... 
+ 
+Mon Mar 26 13:08:43 1990 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Updated version number to 2.4 to reflect the latest changes. 
+ 
+ * Changed the main program so that it always prints out gperf's 
+ execution timings to the generated output file. 
+ 
+Sun Mar 25 12:39:30 1990 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Added the -Z option so that users can specify the name of the 
+ generated class explicitly. Updated documentation to reflect 
+ this change. 
+ 
+ * Modified the generated C++ class interface so that the functions 
+ are declared static (to remove the overhead of passing the `this' 
+ pointer). This means that operator()() can no longer be used, 
+ since it only works on non-static member functions. 
+ Also changed things so that there is no constructor (why waste 
+ the extra call, when it doesn't do anything, eh?) 
+ 
+ * Modified the behavior of Key_List::output when the -L C++ option 
+ is enabled. Previously the code generated use const data members 
+ to record MIN_WORD_LENGTH, MIN_HASH_VALUE, etc. However, as 
+ pointed out by James Clark this may result in suboptimal behavior 
+ on the part of C++ compilers that can't inline these values. 
+ Therefore, the new behavior is identical to what happens with 
+ -L C, i.e., either #defines or function-specific enums are used. 
+ Why sacrifice speed for some abstract notion of `code purity?' ;-) 
+ 
+Tue Mar 6 18:17:42 1990 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Added the -E option that defines constant values using an enum 
+ local to the lookup function rather than with #defines. This 
+ also means that different lookup functions can reside in the 
+ same file. Thanks to James Clark (jjc@ai.mit.edu). 
+ 
+Sat Mar 3 20:19:00 1990 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Added a special case to key_list::output_switch that doesn't 
+ generate extra comparisons when the `-S' is given an argument 
+ of 1 (the normal case). This should speed up the generated 
+ code output a tad... 
+ 
+Fri Feb 23 14:21:28 1990 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Renamed all instances of member function get_keysig_size 
+ to get_max_keysig_size, since this is more precise... 
+ 
+ * Changed all occurrences of charset to keysig (stands for ``key 
+ signature'') to reflect the new naming convention used in the 
+ USENIX paper. 
+ 
+Thu Feb 22 11:28:36 1990 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Changed the name of the generated associated values table from 
+ asso_value to asso_values to reflect conventions in the USENIX 
+ C++ paper. 
+ 
+Thu Feb 15 23:29:03 1990 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Updated the gperf.texinfo file to fix some formatting problems 
+ that had crept in since last time. 
+ 
+Wed Feb 14 23:27:24 1990 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Fixed stupid bug in key-list.cc (get_special_input), wher 
+ gperf replaced each '%' with the succeeding character. 
+ 
+ * Added support for multiple target language generation. Currently 
+ handled languages are C and C++, with C as the default. Updated 
+ documentation and option handler to reflect the changes. 
+ 
+ * Added a global destructor to new.cc and removed the #ifdef, since 
+ the bloody thing now works with libg++. 
+ 
+Mon Feb 14 13:00:00 1990 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Found out that my gperf paper was accepted at the upcoming 
+ USENIX C++ Conference in San Francisco. Yow! 
+ 
+Tue Jan 30 09:00:29 1990 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * #ifdef'd out the new.cc memory allocator, since there are 
+ problems with this and the libg++ stuff. 
+ 
+ * Changed key-list.h so that class Vectors is a public (rather 
+ than private) base class for class Key_List. The previous 
+ form was illegal C++, but wasn't being caught by the old 
+ g++ compiler. Should work now... ;-) 
+ 
+Sun Dec 10 14:08:23 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added several changes from rfg@ics.uci.edu. These changes 
+ help to automate the build process. 
+ 
+Wed Nov 15 15:49:33 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Removed conditional compilation for GATHER_STATISTICS. There's 
+ really no good reason to avoid collecting this info at run-time, 
+ since that section of code is *hardly* the bottleneck... ;-) 
+ 
+ * Simplified the C output routines in Key_List::set_output_types 
+ and Key_List::output_keyword_table a bit in order to 
+ speed-up and clean up the code generation. 
+ 
+ * Modified function Key_List::get_special_input so that it does 
+ not try to `delete' a buffer that turned out to be too short. 
+ This is important since the new memory management scheme 
+ does not handle deletions. However, adding a small amount of 
+ garbage won't hurt anything, since we generally don't do this 
+ operation more than a couple times *at most*! 
+ 
+ * Created a new file (new.cc) which includes my own overloaded 
+ operator new. This function should dramatically reduce the 
+ number of calls to malloc since it grabs large chunks and 
+ doles them out in small pieces. As a result of this change 
+ the class-specific `operator new' was removed from class List_Node. 
+ 
+Tue Nov 14 21:45:30 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Continued to refine the great hack. The latest trick is to 
+ try and replace most uses of dynamic memory (i.e., calls to 
+ new) with uses of gcc dynamic arrays (i.e., an alloca solution). 
+ This makes life much easier for the overall process-size, since 
+ it reduces the amount of overhead for memory management. As a 
+ side-effect from this change there is no reason to have the 
+ Bool_Array::dispose member function, so it's outta here! 
+ 
+ * Fixed a stupid bug that was an disaster waiting to happen... 
+ Instead of making the boolean array large enough to index 
+ max_hash_value it was only large enough to index max_hash_value 
+ - 1. Once again, an off-by-one mistake in C/C++!!!! 
+ 
+Mon Nov 13 19:38:27 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added the final great hack! This allows us to generate hash tables 
+ for near-perfect hash functions that contain duplicates, *without* 
+ having to use switch statements! Since many compilers die on large 
+ switch statements this feature is essential. Furthermore, it appears 
+ that the generated code is often *smaller* than that put out by 
+ compilers, even though a large, sparse array must be created. 
+ Here's the general idea: 
+ 
+ a. Generate the wordlist as a contiguous block of keywords, 
+ just as before when using a switch statement. This 
+ wordlist *must* be sorted by hash value. 
+ 
+ b. Generate the lookup array, which is an array of signed 
+ {chars,shorts,ints}, (which ever allows full coverage of 
+ the wordlist dimensions). If the value v, where v = 
+ lookup[hash(str,len)], is >= 0 and < TOTAL_KEYWORDS, then we 
+ simply use this result as a direct access into the wordlist 
+ array to snag the keyword for comparison. 
+ 
+ c. Otherwise, if v is < -TOTAL_KEYWORDS or > TOTAL_KEYWORDS 
+ this is an indication that we'll need to search through 
+ some number of duplicates hash values. Using a hash 
+ linking scheme we'd then index into a different part of 
+ the hash table that provides the starting index and total 
+ length of the duplicate entries to find via linear search! 
+ 
+Sun Nov 12 13:48:10 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Simplified Key_List::output_min_max considerably by recognizing 
+ that since the keyword list was already sorted by hash value finding 
+ the min and max values is trivial! 
+ 
+ * Improved the debugging diagnostics considerably in classes Key_List, 
+ Hash_Table, and Gen_Perf. 
+ 
+ * Modified the `-s' option so that a negative argument is now 
+ interpreted to mean `allow the maximum associated value to be 
+ about x times *smaller* than the number of input keys.' This 
+ should help prevent massive explosion of generated hash table 
+ size for large keysets. 
+ 
+Sat Nov 11 11:31:13 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added a field in class Key_List that counts the total number 
+ of duplicate keywords, both static and dynamic. 
+ 
+ * Added a new member function Bool_Array that deletes the dynamic 
+ memory allocated to Bool_Array::storage_array. This space may 
+ be needed for subsequent options, so it made sense to free it as 
+ soon as possible... 
+ 
+ * Renamed file/class Alpha_Vectors to Vectors, to avoid problems 
+ with 14 character length filenames on SYSV. Also changed file 
+ adapredefined.gperf to adadefs.gperf in the ./tests directory. 
+ 
+ * Modified class Options by changing the member function 
+ Options::total_positions to Options::get_charset_size and 
+ Options::set_charset_size. These two routines now either return 
+ the total charset size *or* the length of the largest keyword 
+ if the user specifies the -k'*' (ALLCHARS) option. This change 
+ cleans up client code. 
+ 
+ * Merged all the cperf changes into gperf. 
+ 
+ * Made sure to explicitly initialize perfect.fewest_collisions to 
+ 0. 
+ 
+ * Cleaned up some loose ends noticed by Nels Olson. 
+ 1. Removed `if (collisions <= perfect.fewest_collisions)' 
+ from Gen_Perf::affects_prev since it was superfluous. 
+ 2. Removed the fields best_char_value and best_asso_value 
+ from Gen_Perf. There were also unnecessary. 
+ 3. Fixed a braino in the Bool_Array::bool_array_reset 
+ function. Since iteration numbers can never be zero 
+ the `if (bool_array.iteration_number++ == 0)' must be 
+ `if (++bool_array.iteration_number == 0).' 
+ 4. Modified Std_Err::report_error so that it correctly handles 
+ "%%". 
+ 
+ * It is important to note that -D no longer enables -S. 
+ There is a good reason for this change, which will become 
+ manifested in the next release... (suspense!). 
+ 
+ * Made some subtle changes to Key_List::print_switch so that if finally 
+ seems to work correctly. Needs more stress testing, however... 
+ 
+ * Made a major change to the Key_List::print_switch function. 
+ The user can now specify the number of switch statements to generate 
+ via an argument to the -S option, i.e., -S1 means `generate 1 
+ switch statement with all keywords in it,' -S2 means generate 
+ 2 switch statements with 1/2 the elements in each one, etc. 
+ Hopefully this will fix the problem with C compilers not being 
+ able to generate code for giant switch statements (but don't 
+ hold your breath!) 
+ 
+ * Changed Key_List::length function to Key_List::keyword_list_length. 
+ 
+ * Added a feature to main.c that prints out the starting wall-clock 
+ time before the program begins and prints out the ending wall-clock 
+ time when the program is finished. 
+ 
+ * Added the GATHER_STATISTICS code in hash-table.c so we can 
+ keep track of how well double hashing is doing. Eventually, 
+ GATHER_STATISTICS will be added so that all instrumentation 
+ code can be conditionally compiled in. 
+ 
+ * Fixed a stupid bug in Key_List::print_switch routine. This 
+ was necessary to make sure the generated switch statement worked 
+ correctly when *both* `natural,' i.e., static links and dynamic 
+ links, i.e., unresolved duplicates, hash to the same value. 
+ 
+ * Modified Bool_Array::~Bool_Array destructor so that 
+ it now frees the bool_array.storage_array when it is no longer 
+ needed. Since this array is generally very large it makes sense 
+ to return the memory to the freelist when it is no longer in use. 
+ 
+ * Changed the interface to constructor Hash_Table::Hash_Table. This 
+ constructor now passed a pointer to a power-of-two sized buffer that 
+ serve as storage for the hash table. Although this weakens information 
+ hiding a little bit it greatly reduces dynamic memory fragmentation, 
+ since we can now obtain the memory via a call to alloca, rather 
+ than malloc. This change modified Key_List::read_keys calling 
+ interface. 
+ 
+ * Since alloca is now being used more aggressively a conditional 
+ compilation section was added in main.c. Taken from GNU GCC, 
+ this code gets rid of any avoidable limit on stack size so that 
+ alloca does not fail. It is only used if the -DRLIMIT_STACK 
+ symbol is defined when gperf is compiled. 
+ 
+ * Added warnings in option.c so that user's would be informed 
+ that -r superceeds -i on the command-line. 
+ 
+ * Rewrote Gen_Perf::affects_prev. First, the code structure 
+ was cleaned up considerably (removing the need for a dreaded 
+ goto!). Secondly, a major change occurred so that Gen_Perf::affects_prev 
+ returns FALSE (success) when fewest_hits gets down to whatever 
+ it was after inserting the previous key (instead of waiting for 
+ it to reach 0). In other words, it stops trying if it can 
+ resolve the new collisions added by a key, even if there are 
+ still other old, unresolved collisions. This modification was 
+ suggested by Nels Olson and seems to *greatly* increase the 
+ speed of gperf for large keyfiles. Thanks Nels! 
+ 
+ * In a similar vein, inside the Gen_Perf::change routine 
+ the variable `perfect.fewest_collisions is no longer initialized 
+ with the length of the keyword list. Instead it starts out at 
+ 0 and is incremented by 1 every time change () is called. 
+ The rationale for this behavior is that there are times when a 
+ collision causes the number of duplicates (collisions) to 
+ increase by a large amount when it would presumably just have 
+ gone up by 1 if none of the asso_values were changed. That is, 
+ at the beginning of change(), you could initialize fewest_hits 
+ to 1+(previous value of fewest_hits) instead of to the number of 
+ keys. Thanks again, Nels. 
+ 
+ * Replaced alloca with new in the Gen_Perf::change function. 
+ This should eliminate some overhead at the expense of a little 
+ extra memory that is never reclaimed. 
+ 
+ * Renamed Gen_Perf::merge_sets to Gen_Perf::compute_disjoint_union 
+ to reflect the change in behavior. 
+ 
+ * Added the -e option so users can supply a string containing 
+ the characters used to separate keywords from their attributes. 
+ The default behavior is ",\n". 
+ 
+ * Removed the char *uniq_set field from LIST_NODE and modified 
+ uses of uniq_set in perfect.c and keylist.c. Due to changes 
+ to Gen_Perf::compute_disjoint_sets this field was no longer 
+ necessary, and its removal makes the program smaller and 
+ potentially faster. 
+ 
+ * Added lots of changes/fixes suggested by Nels Olson 
+ (umls.UUCP!olson@mis.ucsf.edu). In particular: 
+ 1. Changed Bool_Array so that it would dynamically create 
+ an array of unsigned shorts rather than ints if the 
+ LO_CAL symbol was defined during program compilation. 
+ This cuts the amount of dynamic memory usage in half, 
+ which is important for large keyfile input. 
+ 2. Added some additional debugging statements that print extra 
+ info to stderr when the -d option is enabled. 
+ 3. Fixed a really stupid bug in Key_List::print_switch 
+ A right paren was placed at the wrong location, which broke 
+ strlen (). 
+ 4. Fixed a subtle problem with printing case values when keylinks 
+ appear. The logic failed to account for the fact that there 
+ can be keylinks *and* regular node info also! 
+ 5. Changed the behavior of Key_List::read_keys so that it would 
+ honor -D unequivocally, i.e., it doesn't try to turn off dup 
+ handling if the user requests it, even if there are no 
+ immediate links in the keyfile input. 
+ 6. Modified the -j option so that -j 0 means `try random values 
+ when searching for a way to resolve collisions.' 
+ 7. Added a field `num_done' to the Gen_Perf struct. This is used 
+ to report information collected when trying to resolve 
+ hash collisions. 
+ 8. Modified the merge_sets algorithm to perform a disjoint 
+ union of two multisets. This ensures that subsequent 
+ processing in Gen_Perf::affect_prev doesn't 
+ waste time trying to change an associated value that is 
+ shared between two conflicting keywords. 
+ 9. Modified Gen_Perf::affects_prev so that it doesn't try 
+ random jump values unless the -j 0 option is enabled. 
+ 10. Fixed a silly bug in Gen_Perf::change. This problem caused 
+ gperf to seg fault when the -k* option was given and the 
+ keyfile file had long keywords. 
+ 
+Sun Oct 29 00:18:55 1989 Doug Schmidt (schmidt at siam.ics.uci.edu) 
+ 
+ * Modified class-specific new operations for Read_Line and 
+ List_Node so they don't fail if SIZE is larger than twice 
+ the previous buffer size. Note we double buffer size 
+ everytime the previous buffer runs out, as a heuristic 
+ to reduce future calls to malloc. 
+ 
+Sun Oct 22 13:49:43 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Updated gperf version number to 2.0. Send to Doug Lea for 
+ incorporation into the long-awaited `official' libg++ 1.36 
+ release! 
+ 
+ * Thanks to Nels Olson a silly bug in Gen_Perf::change () 
+ was fixed. This problem caused gperf to seg fault when 
+ the -k* option was given and the keyfile file had long 
+ keywords. 
+ 
+ * Modified Key_List::print_hash_function so that it output 
+ max_hash_value + 1 (rather than just max_hash_value) for 
+ any associated value entries that don't correspond to 
+ keyword charset characters. This should speed up rejection 
+ of non-keyword strings a little in some cases. 
+ 
+Sat Oct 21 19:28:36 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Fixed Key_List::print_hash_function so that it no longer output 
+ things like `return 0 + ...' Although this probably gets 
+ optimized away by even the worst C compilers there isn't any 
+ point tempting fate... ;-) 
+ 
+ * Fixed class List_Node's constructor so that it wouldn't a priori 
+ refuse to consider trying to hash keys whose length is less 
+ than the smallest user-specified key position. It turns out 
+ this is not a problem unless the user also specifies the -n 
+ (NOLENGTH) option, in which case such keys most likely 
+ don't have a prayer of being hashed correctly! 
+ 
+ * Changed the name of the generated lookup table from `Hash_Table' 
+ to `asso_value' to be consistent with the gperf paper. 
+ 
+Tue Oct 17 14:19:48 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added a flag GATHER_STATISTICS in the Makefile. If defined 
+ during compilation this turns on certain collection facilities 
+ that track the performance of gperf during its execution. In 
+ particular, I want to see how many collisions occur for the 
+ double hashing Hash_Table. 
+ 
+ * Added a safety check so that we don't screw up if the total 
+ number of `resets' of the Bool_Array exceeds MAX_INT. Since 
+ this number is around 2^31 it is unlikely that this would ever 
+ occur for most input, but why take the risk? 
+ 
+ * Changed the behavior for the -a (ANSI) option so that the 
+ generated prototypes use int rather than size_t for the LEN 
+ parameter. It was too ugly having to #include <stddef.h> all 
+ over the place... 
+ 
+Mon Oct 16 11:00:35 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Continued to work on the gperf paper for the USENIX C++ 
+ conference. At some point this will be merged back into 
+ the gperf documentation... 
+ 
+Sat Oct 14 20:29:43 1989 Doug Schmidt (schmidt at siam.ics.uci.edu) 
+ 
+ * Added a majorly neat hack to Bool_Array, suggested by rfg. 
+ The basic idea was to throw away the Ullman array technique. 
+ The Ullman array was used to remove the need to reinitialize all 
+ the Bool_Array elements to zero everytime we needed to determine 
+ whether there were duplicate hash values in the keyword list. 
+ The current trick uses an `iteration number' scheme, which takes 
+ about 1/3 the space and reduces the overall program running a 
+ time by about 20 percent for large input! The hack works as 
+ follows: 
+ 
+ 1. Dynamically allocation 1 boolean array of size k. 
+ 2. Initialize the boolean array to zeros, and consider the first 
+ iteration to be iteration 1. 
+ 2. Then on all subsequent iterations we `reset' the bool array by 
+ kicking the iteration count by 1. 
+ 3. When it comes time to check whether a hash value is currently 
+ in the boolean array we simply check its index location. If 
+ the value stored there is *not* equal to the current iteration 
+ number then the item is clearly *not* in the set. In that 
+ case we assign the iteration number to that array's index 
+ location for future reference. Otherwise, if the item at 
+ the index location *is* equal to the iteration number we've 
+ found a duplicate. No muss, no fuss! 
+ 
+Mon Oct 2 12:30:54 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Changed some consts in options.h to enumerals, since g++ 
+ doesn't seem to like them at the moment! 
+ 
+Sat Sep 30 12:55:24 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Fixed a stupid bug in Key_List::print_hash_function that manifested 
+ itself if the `-k$' option was given (i.e., only use the key[length] 
+ character in the hash function). 
+ 
+ * Added support for the -C option. This makes the contents of 
+ all generated tables `readonly'. 
+ 
+ * Changed the handling of generated switches so that there is 
+ only one call to str[n]?cmp. This *greatly* reduces the size of 
+ the generated assembly code on all compilers I've seen. 
+ 
+ * Fixed a subtle bug that occurred when the -l and -S option 
+ was given. Code produced looked something like: 
+ 
+ if (len != key_len || !strcmp (s1, resword->name)) return resword; 
+ 
+ which doesn't make any sense. Clearly, this should be: 
+ 
+ if (len == key_len && !strcmp (s1, resword->name)) return resword; 
+ 
+Tue Sep 26 10:36:50 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Changed class Read_Line's definition so that it no longer 
+ needs to know about the buffering scheme used to speed up 
+ dynamic memory allocation of input keywords and their 
+ associated attributes. This means that operator new is no longer 
+ a friend of Read_Line. 
+ 
+Mon Sep 25 23:17:10 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Decided that Obstacks had too much overhead, so they were 
+ removed in favor of super-efficient, low-overhead buffered 
+ storage allocation hacks in Read_Line and List_Node. 
+ 
+ * No longer try to inline functions that g++ complains about 
+ (Key_List::Merge and Key_List::Merge_Sort). 
+ 
+Sun Sep 24 13:11:24 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Changed classes Read_Line and List_Node to use Obstacks in order 
+ to cache memory allocation for keyword strings and List_Nodes. 
+ 
+ * Continued to experiment with inheritance schemes. 
+ 
+ * Added a new file `alpha.h', that declares static data shared 
+ (i.e., inherited) between classes List_Node and Key_List. 
+ 
+Tue Sep 12 16:14:41 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Made numerous changes to incorporate multiple inheritance in 
+ gperf. 
+ 
+Wed Aug 16 23:04:08 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added the -DCOMPILER_FIXED flag to the ./src/Makefile. This 
+ implies that people trying to compile gperf need to have a 
+ working version of the new g++ compiler (1.36.0). 
+ 
+ * Removed some extra spaces that were being added in the generated 
+ C code. 
+ 
+Mon Jul 24 17:09:46 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Fixed PRINT_HASH_FUNCTION and PRINT_LOOKUP_FUNCTION in keylist.c 
+ so that the generated functions take an unsigned int length argument. 
+ If -a is enabled the prototype is (const char *str, size_t len). 
+ 
+Fri Jul 21 13:06:15 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Fixed a typo in PRINT_KEYWORD_TABLE in keylist.cc that prevented 
+ the indentation from working correctly. 
+ 
+ * Fixed a horrible typo in PRINT_KEYWORD_TABLE in keylist.cc 
+ that prevented links from being printed correctly. 
+ 
+Tue Jul 18 16:04:31 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Fixed up readline.cc and readline.h so that they work OK 
+ with g++ compilers that aren't completely up-to-date. 
+ If symbol COMPILER_FIXED is defined then the behavior 
+ that works on my more recent version of g++ is enabled. 
+ 
+Sun Jul 9 17:53:28 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Changed the ./tests subdirectory Makefile so that it 
+ uses $(CC) instead of gcc. 
+ 
+Sun Jul 2 21:52:15 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Fixed a number of subtle bugs that occurred when -S was 
+ combined with various and sundry options. 
+ 
+ * Added the -G option, that makes the generated keyword table 
+ a global static variable, rather than hiding it inside 
+ the lookup function. This allows other functions to directly 
+ access the contents in this table. 
+ 
+ * Added the "#" feature, that allows comments inside the keyword 
+ list from the input file. Comment handling takes place in readline.c. 
+ This simplifies the code and reduces the number of malloc calls. 
+ 
+ * Also added the -H option (user can give the name of the hash 
+ function) and the -T option (prevents the transfer of the type decl 
+ to the output file, which is useful if the type is already defined 
+ elsewhere). 
+ 
+Thu Jun 22 20:39:39 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Modified many classes so that they would inherit Std_Err as 
+ a base class. This makes things more abstract... 
+ 
+Fri Jun 16 14:23:00 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Modified the -f (FAST) option. This now takes an argument. 
+ The argument corresponds to the number of iterations used 
+ to resolve collisions. -f 0 uses the length of the 
+ keyword list (which is what -f did before). This makes 
+ life much easier when dealing with large keyword files. 
+ 
+Tue Jun 6 17:53:27 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added the -c (comparison) option. Enabling this 
+ will use the strncmp function for string comparisons. 
+ The default is to use strcmp. 
+ 
+ * Fixed a typo in key_list.cc (PRINT_SWITCH). This caused 
+ faulty C code to be generated when the -D, -p, and -t 
+ options were all enabled. 
+ 
+Thu May 25 14:07:21 1989 Doug Schmidt (schmidt at siam.ics.uci.edu) 
+ 
+ * Once again, changed class Read_Line to overload global operator 
+ new. Hopefully, this will work...! 
+ 
+Sun May 21 01:51:45 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Modified Key_List::print_hash_function () so that it properly 
+ formats the associated values in the hash table according to 
+ the maximum number of digits required to represent the largest 
+ value. 
+ 
+ * Removed the named return value from class Hash_Table's 
+ operator (), since this causes a seg fault when -O is enabled. 
+ No sense tripping subtle g++ bugs if we don't have to.... ;-) 
+ 
+ * Removed the operator new hack from Read_Line, since this seemed 
+ to create horrible bus error problems. 
+ 
+ * Changed many class member functions and data members to be `static', 
+ if they don't manipulate this! 
+ 
+Fri May 12 23:06:56 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Changed class Std_Err to use static member functions, a la 
+ Ada or Modula 2. This eliminates the need for an explicit 
+ error-handler class object. 
+ 
+ * Added the ``named return value'' feature to Hash_Table::operator () 
+ and Bool_Array::operator [], just for the heck of it.... ;-) 
+ 
+ * Changed the previous hack in Read_Line so that we now use 
+ the overloaded global `new' instead of NEW_STRING! 
+ 
+Wed May 3 17:36:55 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Updated to version 1.7. This reflects the recent major changes 
+ and the new C port. 
+ 
+ * Modified the GNU getopt.cc routine to have a class-based interface. 
+ 
+ * Fixed a typo in Perfect.cc ~Perfect that prevented the actual maximum 
+ hash table size from being printed (maybe the stream classes 
+ weren't so bad after all.... ;-). 
+ 
+ * Added support for the -f option. This generates the perfect 
+ hash function ``fast.'' It reduces the execution time of 
+ gperf, at the cost of minimizing the range of hash values. 
+ 
+Tue May 2 16:23:29 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Added an efficiency hack to Read_Line. Instead of making 
+ a call to operator NEW (a.k.a. malloc) for each input string 
+ a new member function NEW_STRING stores a large buffer from 
+ which new strings are carved out, growing the buffer if 
+ necessary. It might be useful to add this throughout the 
+ program.... 
+ 
+ * Removed all unnecessary calls to DELETE. If the program is about 
+ to exit it is silly to waste time freeing memory. 
+ 
+ * Added the GNU getopt program to the distribution. This makes 
+ GPERF portable to systems that don't include getopt in libc. 
+ 
+ * Added a strcspn member to class Key_List. This also increases 
+ portability. 
+ 
+ * Added the get_include_src function from keylist.c as a member 
+ function in class Key_List. Hopefully every function is 
+ now associated with a class. This aids abstraction and 
+ modularity. 
+ 
+ * Ported gperf to C. From now on both K&R C and GNU G++ versions 
+ will be supported. There will be two ChangeLog files, one 
+ for each version of the program. 
+ 
+Mon May 1 16:41:45 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Fixed a bug with -k'*'. This now prints out *all* the cases 
+ up to the length of the longest word in the keyword set. 
+ 
+Sun Apr 30 12:15:25 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Removed all use of the stream classes. Too ugly, slow, and 
+ not handled by the c++-mode formatter.... 
+ 
+ * Modified the handling of links (i.e., keywords that have 
+ identical hash values as other keywords). This should 
+ speed up hash function generation for keyword sets with 
+ many duplicate entries. The trick is to treat duplicate 
+ values as equivalence classes, so that each set of duplicate 
+ values is represented only once in the main list processing. 
+ 
+ * Fixed some capitialization typos and indentations mistakes in 
+ Key_List::print_hash_function. 
+ 
+Sat Apr 29 12:04:03 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Fixed a typo/logico in Key_List::print_switch that prevented 
+ the last keyword in the keyword list to be print out. This 
+ requires further examination..... 
+ 
+ * Fixed a stupid bug in List_Node::List_node. If the -k'*' option 
+ was enabled the KEY_SET string wasn't getting terminated with 
+ '\0'! 
+ 
+Fri Apr 28 12:38:35 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Renamed strexp.h and strexp.cc to iterator.h and iterator.cc. 
+ Also changed the strexp class to iterator. Continued to work 
+ on style... 
+ 
+ * Updated the version number to 1.6. This reflects all the 
+ recent changes. 
+ 
+Thu Apr 27 00:14:51 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added the -D option that properly handles keyword sets that 
+ contain duplicate hash values. 
+ 
+ * Continued the stylistic changes. Added the #pragma once 
+ directive to all the *.h files. Removed all #defines and 
+ replaced them with static consts. Also moved the key_sort 
+ routine from options.cc into the options class as a 
+ member function. 
+ 
+Mon Apr 3 13:26:55 1989 Doug Schmidt (schmidt at zola.ics.uci.edu) 
+ 
+ * Made massive stylistic changes to bring source code into 
+ conformance with GNU style guidelines. 
+ 
+Thu Mar 30 23:28:45 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Fixed up the output routines so that they generate code 
+ corresponding to the GNU style guidelines. 
+ 
+Sat Mar 11 13:12:37 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Fixed Stderr constructors so that they wouldn't try to 
+ use the base class initializer syntax for the static 
+ class variable Program_Name. G++ 1.34 is stricter in 
+ enforcing the rules! 
+ 
+Fri Mar 10 11:24:14 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Removed -v and ``| more'' from the Makefile to keep rfg happy... 
+ 
+Thu Mar 2 12:37:30 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Sent latest GNU gperf version 1.5 to Doug Lea for inclusion 
+ into libg++ 1.34. Note that there is a small bug with 
+ the new %{ ... %} source inclusion facility, since it doesn't 
+ understand comments and will barf if %{ or %} appear nested 
+ inside the outermost delimiters. This is too trivial of 
+ a defect to fix at the moment... 
+ 
+Tue Feb 28 11:19:58 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added the -K option, which allows the user to provide a 
+ alternative name for the keyword structure component. 
+ The default is still ``name.'' 
+ 
+ * Added the LEX and YACC-like ability to include arbitrary 
+ text at the beginning of the generated C source code output. 
+ This required two new functions Get_Special_Input, 
+ Key_List::Save_Include_Src; 
+ 
+ * Fixed memory allocation bug in Key_List::Set_Types. 
+ Variable Return_Type needs 1 additional location 
+ to store the "*" if the -p option is used. 
+ 
+ * Added code to NULL terminate both Struct_Tag and Return_Type, 
+ *after* the strncpy (stupid mistake). 
+ 
+Mon Feb 27 14:39:51 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added a new option -N. This allows the user to specify the 
+ name to be used for the generated lookup function. The 
+ default name is still ``in_word_set.'' This makes it 
+ possible to completely automate the perfect hash function 
+ generation process! 
+ 
+Mon Feb 20 23:33:14 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Corrected the Hash_Table::operator () function so that 
+ *it* is responsible for deciding when a new key has the 
+ same signature as a previously seen key. The key length 
+ information is now used internally to this function to 
+ decide whether to add to the hash table those keys with 
+ the same key sets, but different lengths. Before, this 
+ was handled by the Key_List::Read_Keys function. However, 
+ this failed to work for certain duplicate keys, since 
+ they weren't being entered into the hash table properly. 
+ 
+Sun Feb 19 16:02:51 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Modified class Options by moving the enum Option_Type out 
+ of the class. This is to satisfy the new enumeration 
+ scope rules in C++. 
+ 
+Sun Jan 15 15:12:09 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Incremented the version number upto 1.4 to reflect the new 
+ options that affect the generated code. Send the new 
+ distribution off to Michael for use with g++ 1.33. 
+ 
+ * Added a fix to Key_List::Read_Keys so that it checks for links 
+ properly when the -n option is used. Previously, it didn't 
+ catch obvious links, which caused it to spend large amount 
+ of time searching for a solution that could never occur! 
+ 
+ * Modified the Key_List data structure to record *both* the 
+ minimum and the maximum key lengths. This information 
+ is now computed in Key_List::Read_Keys, and thus 
+ Key_List::Print_Min_Max doesn't need to bother. 
+ 
+ * Modifed the key position iterator scheme in options.cc to 
+ eliminate the need for member function Options::Advance. 
+ Now, the Options::Get function performs the advancement 
+ automatically, obviating the need for an extra function call. 
+ 
+ * Added the new function Options::Print_Options, to print out 
+ the user-specified command line options to generated C 
+ output file. 
+ 
+ * Added a new function, Key_List::Print_Keylength_Table, 
+ which creates a table of lengths for use in speeding 
+ up the keyword search. This also meant that a new 
+ option, -l (LENTABLE) is recognized. It controls 
+ whether the length table is printed and the comparison 
+ made in the generated function ``in_word_set.'' 
+ 
+ * Added a comment at the top of the generated C code 
+ output file that tells what version of gperf was used. 
+ Next, I'll also dump out the command line options 
+ as a comment too. Thanks to Michael Tiemann for the 
+ feedback on this. 
+ 
+ * Fixed the -n option to make it work correctly with 
+ other parts of the program (most notably the Perfect::Hash 
+ function and the computation of minimum and maximum lengths. 
+ 
+Fri Jan 13 21:25:27 1989 Doug Schmidt (schmidt at siam.ics.uci.edu) 
+ 
+ * Realized the the need to add a test that will enable 
+ optimziation of the generated C code in the ``hash'' function 
+ by checking whether all the requested key positions are 
+ guaranteed to exist due to the comparison in `in_word_set.'' 
+ I'll put this in soon.... 
+ 
+Thu Jan 12 20:09:21 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Added pascal, modula3, and modula2 tests inputs to the 
+ Makefile 
+ 
+ * Recognised that there is a bug with the -n option. However 
+ I'm too busy to fix it properly, right now. The problem 
+ is that the generated #define end up being 0, since that's 
+ my hack to make -n work. This needs complete rethinking! 
+ 
+Tue Jan 10 00:08:16 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Added a new option, -n, that instructs gperf to not use the 
+ length of an identifier when computing the hash functions. 
+ I'm not sure how useful this is! 
+ 
+ * Retransmitted the distribution to rocky.oswego.edu. Hopefully, 
+ this will work! 
+ 
+ * Began fixing the indentation and capitalization to conform 
+ to the GNU coding guidelines. 
+ 
+Mon Jan 9 22:23:18 1989 Doug Schmidt (schmidt at pompe.ics.uci.edu) 
+ 
+ * Fixed horrible bug in Read_Line::Readln_Aux. This was 
+ a subtle and pernicous off-by-1 error, that overwrote 
+ past the last character of the input string buffer. I 
+ think this fault was killing the vax! 
+ 
+ * Yow, fixed an oversight in List_Node::List_Node, where the 
+ pointer field Next was uninitialized. Luckily, the new routine 
+ seems to return 0 filled objects the first time through! 
+ 
+Sun Jan 8 13:43:14 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Modified the ``key linked'' diagnostic in Key_List::Read_Keys 
+ to be more helpful and easy to read. 
+ 
+ * Fixed the List_Node::List_Node so that it would ignore trailing 
+ fields if the -t option was not enabled. 
+ 
+ * Moved the List_Node declarations out of keylist.h and 
+ into a file of its own, called listnode.cc and listnode.h 
+ Made Set_Sort a member function of class List_Node. 
+ 
+ * Massively updated the documentation in the gperf.texinfo file. 
+ 
+ * Polished off the major revision to the print functions, 
+ added a few new tests in the Makefile to check for the 
+ validity of the program and ftp'ed the entire distribution 
+ off to Doug Lea for libg++. ( changed it to 
+ 1.3 to reflect the major changes with the generated 
+ C code ). 
+ 
+ * Fixed Key_List::Print_Switch to deal with the -p and -t options. 
+ This meant that the ``still-born'' function Key_List:: 
+ Print_Type_Switch was superflous, so I removed it. 
+ Also, removed the restriction in Option that the -p and 
+ -t options couldn't be used simultaneously. 
+ 
+ * Modified List_Node::List_Node, to perform only 1 call to 
+ ``new'' when dynamically allocating memory for the Key_Set 
+ and the Uniq_Set. 
+ 
+Sat Jan 7 14:10:51 1989 Doug Schmidt (schmidt at glacier.ics.uci.edu) 
+ 
+ * Fixed a big bug with the new policy of nesting the 
+ wordlist inside of generated function ``in_word_set.'' 
+ I'd forgotten to declare the wordlist array as static! 
+ ( arrgh ). 
+ 
+ * Added a new function Key_List::Set_Types, that figures out 
+ the return type for generated function ``in_word_set,'' 
+ the user-defined ``struct tag,'' if one is used, and also 
+ formates the array type for the static local array. 
+ 
+ * Changed the print routines to take advantage of the 
+ new -p option. 
+ 
+ * Began adding the hooks to allow the return of a pointer 
+ to a user defined struct location from the generated 
+ ``in_word_set'' function instead of the current 0 or 1 
+ return value. Created function Key_List::Print_Type_Switch 
+ and added option -p to class Option, allowing the user to 
+ request generation of the aforementioned pointers returned 
+ instead of booleans. 
+ 
+ * Put in checks in class Option to make sure that -S and -t 
+ options are not used simultaneously. This restriction 
+ will be removed in subsequent releases, once I decide on 
+ a clean way to implement it. 
+ 
+ * Sent version 1.2 to Doug Lea for possible inclusion into 
+ the libg++ distribution. 
+ 
+ * Moved the static word_list array inside the generated function 
+ in_word_set. This supports better data hiding. 
+ 
+ * Added a texinfo file, gperf.texinfo 
+ 
+ * Revised the Makefile to cleanup the droppings from texinfo 
+ and changed the name of gperf.cc and gperf.h to perfect.cc 
+ and perfect.h. 
+ 
+Fri Jan 6 13:04:45 1989 Doug Schmidt (schmidt at crimee.ics.uci.edu) 
+ 
+ * Implemented the switch statement output format. Much better 
+ for large datasets in terms of space used. 
+ 
+ * Added new functions to break up the Key_List::Output function. 
+ Functions added were Key_List::Print_Switch, Key_List::Print_Min_Max, 
+ Key_List::Print_Keyword_Table, Key_List::Print_Hash_Function, 
+ and Key_List::Print_Lookup_Function. This simplifies the 
+ big mess in Key_List::Output considerably! 
+ 
+ * Added switch statement option to Options, which potentially 
+ trades time for space in the generated lookup code. 
+ 
+Thu Jan 5 22:46:34 1989 Doug Schmidt (schmidt at siam.ics.uci.edu) 
+ 
+ * Released version 1.1 
+ 
+ * Fixed a bug with Gperf::Merge_Set, it was skipping letters shared 
+ between the Set_1 and Set_2. 
+ 
+ * Added the optimal min/max algorithm in Key_List::Output. This 
+ runs in O ( 3n/2 ), rather than O ( 2n ) time. 
+ 
+ * Changed Gperf::Sort_Set to use insertion sort, rather than 
+ bubble sort. 
+ 
+ * Added a check in Key_List::Output for the special case where 
+ the keys used are 1,$. It is possible to generate more 
+ efficient C code in this case.