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Update. 2004-12-13 Paolo Bonzini <bonzini@gnu.org> Separate parsing and creation of the NFA. Avoided recursion on the (very unbalanced) parse tree. [BZ #611] * posix/regcomp.c (struct subexp_optimize, analyze_tree, calc_epsdest, re_dfa_add_tree_node, mark_opt_subexp_iter): Removed. (optimize_subexps, duplicate_tree, calc_first, calc_next, mark_opt_subexp): Rewritten. (preorder, postorder, lower_subexps, lower_subexp, link_nfa_nodes, create_token_tree, free_tree, free_token): New. (analyze): Accept a regex_t *. Invoke the passes via the preorder and postorder generic visitors. Do not initialize the fields in the re_dfa_t that represent the transitions. (free_dfa_content): Use free_token. (re_compile_internal): Analyze before UTF-8 optimizations. Do not include optimization of subexpressions. (create_initial_state): Fetch the DFA node index from the first node's bin_tree_t *. (optimize_utf8): Abort on unexpected nodes, including OP_DUP_QUESTION. Return on COMPLEX_BRACKET. (duplicate_node_closure): Fix comment. (duplicate_node): Do not initialize the fields in the re_dfa_t that represent the transitions. (calc_eclosure, calc_inveclosure): Do not handle OP_DELETED_SUBEXP. (create_tree): Remove final argument. All callers adjusted. Rewritten to use create_token_tree. (parse_reg_exp, parse_branch, parse_expression, parse_bracket_exp, build_charclass_op): Use create_tree or create_token_tree instead of re_dfa_add_tree_node. (parse_dup_op): Likewise. Also free the tree using free_tree for "<re>{0}", and lower OP_DUP_QUESTION to OP_ALT: "a?" is equivalent to "a|". Adjust invocation of mark_opt_subexp. (parse_sub_exp): Create a single SUBEXP node. * posix/regex_internal.c (re_dfa_add_node): Remove last parameter, always perform as if it was 1. Do not initialize OPT_SUBEXP and DUPLICATED, and initialize the DFA fields representing the transitions. * posix/regex_internal.h (re_dfa_add_node): Adjust prototype. (re_token_type_t): Move OP_DUP_PLUS and OP_DUP_QUESTION to the tokens section. Add a tree-only code SUBEXP. Remove OP_DELETED_SUBEXP. (bin_tree_t): Include a full re_token_t for TOKEN. Turn FIRST and NEXT into pointers to trees. Remove ECLOSURE. 2004-12-28 Paolo Bonzini <bonzini@gnu.org > [BZ #605] * posix/regcomp.c (parse_bracket_exp): Do not modify DFA nodes that were already created. * posix/regex_internal.c (re_dfa_add_node): Set accept_mb field in the token if needed. (create_ci_newstate, create_cd_newstate): Set accept_mb field from the tokens' field. * posix/regex_internal.h (re_token_t): Add accept_mb field. (ACCEPT_MB_NODE): Removed. * posix/regexec.c (proceed_next_node, transit_states_mb, build_sifted_states, check_arrival_add_next_nodes): Use accept_mb instead of ACCEPT_MB_NODE. |
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| argp | ||
| assert | ||
| bare | ||
| bits | ||
| catgets | ||
| conf | ||
| conform | ||
| crypt | ||
| csu | ||
| ctype | ||
| debug | ||
| dirent | ||
| dlfcn | ||
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| BUGS | ||
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| ChangeLog | ||
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| configure | ||
| configure.in | ||
| CONFORMANCE | ||
| COPYING | ||
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| cppflags-iterator.mk | ||
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| README | ||
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| Rules | ||
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| version.h | ||
| Versions.def | ||
| WUR-REPORT | ||
This directory contains the version 2.3.4 release of the GNU C Library. Many bugs have been fixed since the last release. Some bugs surely remain. As of this release, the GNU C library is known to run on the following configurations: *-*-gnu GNU Hurd i[3456]86-*-linux-gnu Linux-2.x on Intel m68k-*-linux-gnu Linux-2.x on Motorola 680x0 alpha*-*-linux-gnu Linux-2.x on DEC Alpha powerpc-*-linux-gnu Linux and MkLinux on PowerPC systems powerpc64-*-linux-gnu Linux-2.4.19+ on 64-bit PowerPC systems sparc-*-linux-gnu Linux-2.x on SPARC sparc64-*-linux-gnu Linux-2.x on UltraSPARC 64-bit arm-*-none ARM standalone systems arm-*-linux Linux-2.x on ARM arm-*-linuxaout Linux-2.x on ARM using a.out binaries mips*-*-linux-gnu Linux-2.x on MIPS ia64-*-linux-gnu Linux-2.x on ia64 s390-*-linux-gnu Linux-2.x on IBM S/390 s390x-*-linux-gnu Linux-2.4+ on IBM S/390 64-bit sh-*-linux-gnu Linux-2.x on Super Hitachi x86-64-*-linux-gnu Linux-2.4+ on x86-64 Past releases of this library ran on a variety of configurations that are no longer supported. Porting the library is not hard. If you are interested in doing a port, please contact the glibc maintainers; see http://www.gnu.org/software/libc/ for more information. There are some add-ons which can be used together with GNU libc. They are designed in a way to ease the installation by integrating them in the libc source tree. Simply get the add-ons you need and use the --enable-add-ons option of the `configure' script to tell where the add-ons are found. Please read the FAQ file for more details. See the file INSTALL to find out how to configure, build, install, and port the GNU C library. You might also consider reading the WWW pages for the GNU libc at http://www.gnu.org/software/libc/libc.html. The GNU C Library is completely documented by the Texinfo manual found in the `manual/' subdirectory. The manual is still being updated and contains some known errors and omissions; we regret that we do not have the resources to work on the manual as much as we would like. Please send comments on the manual to <bug-glibc-manual@gnu.org>, and not to the library bug-reporting address. The file NOTES contains a description of the feature-test macros used in the GNU C library, explaining how you can tell the library what facilities you want it to make available. Please see http://www.gnu.org/software/libc/bugs.html for bug reporting information. We are now using the Bugzilla system to track all bug reports. This web page gives detailed information on how to report bugs properly. The GNU C Library is free software. See the file COPYING.LIB for copying conditions, and LICENSES for notices about a few contributions that require these additional notices to be distributed.