changelog

一个开放源代码的 AT&T 的 Korn Shell 的复制品, 支持大多数 ksh89 的特性。

Fri May 16 11:40:22 NDT 1997 Michael Rendell ([e-mail])

	* io.c(error_prefix): don't print kshname if it is the
	  same as the source file name.

Thu Mar 13 10:42:31 NST 1997 Michael Rendell ([e-mail])

	* mail.c(mbset): save a copy of the path so it can't get trashed
	  (eg, by exporting a varibale).

Wed Feb 26 11:24:06 NST 1997 Michael Rendell ([e-mail])

	* emacs.c(x_prev_histword): get word from last command entered,
	  not from last command relative to current location in history
	  (fix from Greg A. Woods).

Sun Feb 16 13:18:52 NST 1997 Michael Rendell ([e-mail])

	* sh.h(FTALKING_I): new define
	* misc.c(options[]): added anonymous options for internal use:
	  changed all code using options to not assume null option name
	  is the end of options (use NELEM()) instead.
	  Added slot for FTALKING_I

	* c_sh.c(c_read), exec.c(iosetup): test FTALKING_I instead of FTALKING.
	* main.c(main): set FTALKING_I.

Fri Jan 10 16:36:36 NST 1997 Michael Rendell ([e-mail])

	* jobs.c(exchild): use orig_flags instead of flags when testing
	  XPIPEI/XPIPEO; clear all flags except XEXEC and XERROK.

Tue Jan  7 11:16:08 NST 1997 Michael Rendell ([e-mail])

	* lex.h(yynerrs): deleted (not used); deleted all assignments of it.

Fri Jan  3 13:40:29 NST 1997 Michael Rendell ([e-mail])

	* lex.c(yylex): case STBRACE: interpret ( | ) as patterns;
	  case SPATTERN: allow ( as an alias for @(.

Thu Jan  2 15:44:07 NST 1997 Michael Rendell ([e-mail])

	* main.c(main): set PATH to def_path in startup.

Thu Jan  2 10:19:43 NST 1997 Michael Rendell ([e-mail])

	* exec.c(comexec): ifdef KSH the setting of $_; only set $_ to
	  last arg if interactive.

Wed Jan  1 13:38:26 NST 1997 Michael Rendell ([e-mail])

	* lex.c(yylex),eval.c(expand),tree.c(tputS,wdscan,wdstrip):
	  changed OSUBST/CSUBST encoding to have { or x after xSUBST.

	* lex.c(yylex): case ${: don't prepend @( and append ) to trim patterns.
	* eval.c(expand): prepend MAGIC @ and append MAGIC ) to trim patterns.

	* syn.c(function_body): call wdstrip().
	* tree.c(wdstrip): new function.

	* lex.c(yylex): moved handling of < and > into one location.

Wed Dec 11 13:00:05 NST 1996 Michael Rendell ([e-mail])

	* sh.h(ksheuid): new variable.
	* main.c(main): set/use ksheuid.
	* misc.c(change_flag): set ksheuid.
	* c_test.c(test_eval): use ksheuid
	* c_test.c(test_eaccess): if doing X_OK and user is root, use
	  stat to avoid false positives on files.

Mon Dec  9 12:08:56 NST 1996 Michael Rendell ([e-mail])

	* main.c(main): save/clear/restore FERREXIT flag while processing
	  profile and ENV.

Wed Dec  4 12:25:23 NST 1996 Michael Rendell ([e-mail])

	* misc.c(parse_args): change -A option handling - make getopts
	  gather the option (A: vs A).

Thu Nov 21 15:42:57 NST 1996 Michael Rendell ([e-mail])

	* c_ksh.c(c_alias): accept + options; don't print alias definition
	  if + option used; allow export flag to be cleared; added -p
	  option.

Thu Nov 21 14:35:47 NST 1996 Michael Rendell ([e-mail])

	* tree.c(ptree),c_ksh.c(c_typeset): print ksh functions as
	  "function foo...", sh functions as "foo()...".

	* c_ksh.c(c_typeset): accept -p flag (does nothing).

Wed Nov 20 11:36:08 NST 1996 Michael Rendell ([e-mail])

	* c_ksh.c(c_typeset): simplified option exclusion code.

	* misc.c(ksh_getopt): allow options in same command line to start
	  with either + or - (if appropriate).  [code existed to similate
	  ksh88 typeset behaviour which disallowed "typeset +x -i foo"]

Wed Nov 13 12:02:59 NST 1996 Michael Rendell ([e-mail])

	* syn.c(c_list): added multi argument; changed all calls to pass
	  TRUE, except one in yyparse(); changed logic to accept and
	  ignore blank lines if multi flag is set.
	* syn.c(get_command): removed multiline.on/cf=CONTIN test/assignment.
	* syn.c(struct multiline_state,struct nesting_state,multiline,nesting,
	  multiline_push,multiline_pop,nesting_push,nesting_pop): renamed
	  *multiline* to *nesting*; removed struct multiline_state.on field
	  (deleted all references).

Mon Nov  4 16:29:50 NST 1996 Michael Rendell ([e-mail])

	* c_test.c(c_test): in special < 5 arg code: if single arg is
	  -t and not in FPOSIX mode, don't decide its a string test.

Wed Oct 30 11:34:39 NST 1996 Michael Rendell ([e-mail])

	* main.c(include): call quitenv() after shf_close()
	  (fix from Eric J. Chet).

Wed Oct 30 11:23:17 NST 1996 Michael Rendell ([e-mail])

	* exec.c(comexec): case CFUNC: set $0 to kshname if non-function
	  function.

Tue Oct 29 11:34:58 NST 1996 Michael Rendell ([e-mail])

	* made pdksh-5.2.12 distribution

Fri Oct 25 11:59:48 NDT 1996 Michael Rendell ([e-mail])

	* vi.c(vi_cmd): case Cntl('i'): dont fall through, call complete_word().

Tue Oct 22 17:38:21 NDT 1996 Michael Rendell ([e-mail])

	* table.h(USERATTRIB): new define.
	* c_ksh.c(c_typeset): report unset params only if it has some
	  interesting attributes.

Tue Oct 22 15:54:39 NDT 1996 Michael Rendell ([e-mail])

	* jobs.c(exchild): changed NEED_PGRP_SYNC code so j_sync_pipe[1] isn't
	  left open in 2nd+ children.

Tue Oct 22 12:59:49 NDT 1996 Michael Rendell ([e-mail])

	* main.c(main): memset() env to 0.

Mon Oct 21 12:53:44 NDT 1996 Michael Rendell ([e-mail])

	* main.c(cleanup_proc_env): new function.
	* exec.c(execute): call cleanup_proc_env() before calling ksh_execve().

Fri Oct 11 22:53:57 NDT 1996 Michael Rendell ([e-mail])

	* vi.c(display): use ch not e->buf[cur] when printing character.

Fri Oct 11 13:26:11 NDT 1996 Michael Rendell ([e-mail])

	* aclocal.m4(KSH_TIMES_CHECK,KSH_DUP2_CLEXEC_CHECK,KSH_OPENDIR_CHECK):
	  changed sense of test so "yes" result is printed if you have a good
	  system.
	* aclocal.m4(KSH_C_FUNC_ATTR): changed return type of test_cnst to int.

Fri Oct 11 13:05:40 NDT 1996 Michael Rendell ([e-mail])

	* syn.c(get_command): added inalias() call when setting cf = CONTIN.

Thu Oct 10 16:22:03 NDT 1996 Michael Rendell ([e-mail])

	* lex.c(getsc__): case SALIAS: if we read eof, break, don't continue.

Tue Oct  8 13:14:00 NDT 1996 Michael Rendell ([e-mail])

	* aclocal.m4(KSH_TERM): added SYS_IOCTL_WITH_TERMIOS,
	  SYS_IOCTL_WITH_TERMIO tests.
	* tty.h: include <sys/ioctl.h> with <termios.h>/<termio.h>
	  if possible.

Tue Oct  8 11:42:36 NDT 1996 Michael Rendell ([e-mail])

	* made pdksh-5.2.11 distribution

Tue Oct  8 11:02:54 NDT 1996 Michael Rendell ([e-mail])

	* syn.c(inalias): new function.
	* syn.c(c_list): call inalias() instead of testing source->type.

Mon Oct  7 17:00:40 NDT 1996 Michael Rendell ([e-mail])

	* made pdksh-5.2.10 distribution

Mon Oct  7 16:23:53 NDT 1996 Michael Rendell ([e-mail])

	* c_sh.c(c_read): when printing prompt, use isatty, not FTALKING.

Wed Oct  2 12:00:51 NDT 1996 Michael Rendell ([e-mail])

	* lex.c(yylex): redirection stuff: save result of getsc() == '-'
	  and use it for ungetsc().

	* lex.h(struct source): moved ugbuf out of union so it can be used
	  with alias stuff.
	* lex.c(getsc__) case SALIAS: instead of appending a space, get the
	  next character and stuff it in ugbuf.

	* lex.c(getsc_,getsc__): getsc_() renamed to getsc__().
	* lex.c(getsc_,getsc): getsc() macro renamed to getsc_().
	* lex.c(backslash_skip,ignore_backslash_newline): new variables.
	* lex.c(getsc): new macro that checks backslash_skip.
	* lex.c(getsc_bn_,getsc_bn): getsc_bn() macro deleted (all calls
	  replaced with getsc()); getsc_bn_ renamed to getsc_bn.
	* lex.c(ungetsc_,ungetsc): ungetsc() macro deleted; renamed ungetsc_()
	  to ungetsc().
	* lex.c(yylex,ungetsc,getsc_bn): set and use backslash_skip,
	  ignore_backslash_newline.
	* lex.c(yylex): removed special cases for backslash-newline sequence,
	  explicitly ignore backslash followed by eof.

Mon Sep 30 17:14:41 NDT 1996 Michael Rendell ([e-mail])

	* made pdksh-5.2.9 distribution

Mon Sep 30 12:52:21 NDT 1996 Michael Rendell ([e-mail])

	* lex.c(pprompt): fixed usage of ntruncate.

Thu Sep 19 17:43:33 NDT 1996 Michael Rendell ([e-mail])

	* sh.h(KSH_SYSTEM_PROFILE): new define.
	* main.c(main): use KSH_SYSTEM_PROFILE.

	* aclocal.m4(KSH_OS_TYPE): added case for NEXT.

Thu Sep 19 15:39:54 NDT 1996 Michael Rendell ([e-mail])

	* tty.c(tty_init): added hack for NeXT's rlogin's missing controlling
	  tty.

Mon Sep 16 11:18:10 NDT 1996 Michael Rendell ([e-mail])

	* edit.c(add_glob): don't append a * to a ~username.
	 
	* edit.c(x_init): set got_sigwinch before calling check_sigwinch().

Wed Sep 11 14:38:38 NDT 1996 Michael Rendell ([e-mail])

	* c_ksh.c(c_let): ifdef'd KSH.
	* lex.h(SDPAREN),lex.c: ifdef'd KSH all uses of SDPAREN.
	* lex.h(MDPAREN),syn.c: ifdef'd KSH all uses of MDPAREN.

Mon Sep  9 16:18:03 NDT 1996 Michael Rendell ([e-mail])

	* aclocal.m4(AC_PROG_CC): replaced autoconf's version with
	  modified version.

	* configure.in(clock_t): check in sys/time.h as well.
	* ksh_times.h: include ksh_time.h.
	* ksh_time.h,ksh_times.h: added ifndef KSH_TIME_H/KSH_TIMES_H.

Fri Sep  6 13:20:24 NDT 1996 Michael Rendell ([e-mail])

	* edit.c(promptlen): X\r hack for delimiting hidden characters
	  in prompt.
	  (Based on fix from Bill Kish)

Tue Sep  3 11:03:26 NDT 1996 Michael Rendell ([e-mail])

	* Makefile.in: removed options.h from HDRS (also removed file).

Thu Aug 29 10:04:01 NDT 1996 Michael Rendell ([e-mail])

	* aclocal.m4(KSH_MEMMOVE): added return 0 to end of main().

Fri Aug 23 14:23:50 NDT 1996 Michael Rendell ([e-mail])

	* aclocal.m4,ksh_stat.h: changed S_IFFIFO to S_IFIFO.

Fri Aug 23 09:58:09 NDT 1996 Michael Rendell ([e-mail])

	* var.c(skip_wdvarname): don't check for array if first char
	  isn't [.

Thu Aug 22 12:51:25 NDT 1996 Michael Rendell ([e-mail])

	* jobs.c: added ifdef KSH around Coproc_id/j->coproc_id usagae.
	* c_ksh.c(c_read): added ifdef KSH around opipe.

Tue Aug 20 09:41:32 NDT 1996 Michael Rendell ([e-mail])

	* configure.in: fixed quoting of sed LDSTATIC expression.

Mon Aug 19 14:26:08 NDT 1996 Michael Rendell ([e-mail])

	* made pdksh-5.2.8 distribution

Mon Aug 19 11:38:16 NDT 1996 Michael Rendell ([e-mail])

	* table.c(texpand): don't free entry if FINUSE is set.

	* var.c(unset): preserve ARRAY and DEFINED if unsetting foo[0].

Thu Aug 15 15:08:52 NDT 1996 Michael Rendell ([e-mail])

	* jobs.c(sm_sigchld,sm_default): moved to sh.h.
	* sh.h(Coproc_id, struct coproc): new typedef; added njobs and 
	  id fields to struct coproc.
	* exec.c(execute): case TCOPROC: re-did coprocess stuff to use
	  njobs/coprocess id.
	* jobs.c(struct Job): added coproc_id field.
	* jobs.c(exchild): initialize coproc_id to 0; set job coproc_id
	  and increment coproc.njobs in parent.
	* jobs.c(checkjob): check coproc_id and close co-process input/output
	  if needed.

	* exec.c(iosetup): only play with coprocess fds if this is an
	  empty exec.
	* c_sh.c(c_read): commented out coproc_readw_close() call and eof call.
	* c_ksh.c(c_print): commented out closing coprocess fd on EPIPE.

	* jobs.c(exchild): in parent, last part of job: use orig_flags (not
	  flags) when checking XCOPROC.

Thu Aug 15 15:00:42 NDT 1996 Michael Rendell ([e-mail])

	* io.c(get_coproc_fd,cleanup_coproc): renamed to coproc_getfd() and
	  coproc_cleanup(), respecitively; changed all calls.

Tue Aug 13 16:56:59 NDT 1996 Michael Rendell ([e-mail])

	* expr.c(O_COMMA,P_COMMA): new enums.
	* expr.c(evalexpr): added case for O_COMMA.

Tue Aug 13 15:18:28 NDT 1996 Michael Rendell ([e-mail])

	* expr.c(do_ppmm): new function to handle ++/--.
	* expr.c(evalexpr): call do_ppmm() in P_PRIMARY code.
	* expr.c(LAST_BINOP): deleted.
	* expr.c(IS_BINOP): new define.
	* expr.c(evalexpr): use IS_BINOP.
	* expr.c(O_PLUSPLUS,O_MINUSMUNS,opinfo[]): new enums; updated opinfo
	* expr.c(ET_LVALUE,ET_RDONLY): new enums.

	* expr.c(token): var code: don't increment cp in iter part of for loop,
	  do it in body; don't correct for off by 1 in array or !noasign code.
	* table.h(EXPRLVALUE): new define.
	* expr.c(token): var code: set EXPRLVALUE flag if noassign.
	* expr.c(intvar): copy temp var if EXPRLVALUE set.
	* expr.c(assign_check): new function.
	* expr.c(evalexpr): if assign-op, call assign_check().

Tue Aug 13 11:02:32 NDT 1996 Michael Rendell ([e-mail])

	* vi.c(do_comment),edit.c(x_do_comment): made do_comment generic,
	  renamed and moved to edit.c; changed all calls.
	* emacs.c(x_ftab[]): added x_comment.
	* emacs.c(x_defbindings[]): added XFUNC_comment as <esc>#.
	* emacs.c(x_comment): new function.

Mon Aug 12 16:13:36 NDT 1996 Michael Rendell ([e-mail])

	* expr.c(ET_BADVAR): deleted.
	* expr.c(ET_RECURSIVE, struct expr.evaling),table.h(EXPRNEVAL): added.
	* expr.c(v_evaluate): if curstate.evaling set, clear EXPRINEVAL.
	* expr.c(evalerr): added ET_RECURSIVE case, removed ET_BADVAR case.
	* expr.c(intvar): do recursion check, call v_evaluate() on value.

Mon Aug 12 14:25:23 NDT 1996 Michael Rendell ([e-mail])

	* io.c(coproc_read_close): call coproc_readw_close() instead of
	  duplicating code.

Mon Aug 12 11:21:39 NDT 1996 Michael Rendell ([e-mail])

	* edit.c(x_locate_word): changed to allow at most 1 leading blank
	  before the word.
	* edit.c(x_file_glob,x_command_glob,add_glob): allow zero length word.
	* edit.c(x_cf_glob): allow zero length globs on when doing file
	  completion.

	* edit.c(x_complete_word): #if 0 - it isn't used...
	* edit.c(x_file_glob,x_command_glob,x_locate_word): made static.

	* eval.c(varsub): changed FNOUNSET error from "unset variable"
	  to "parameter no set", ala at&t ksh.

	* c_ksh.c(c_typeset): print variables that aren't set (just
	  leave out the =...).

Mon Aug 12 11:03:22 NDT 1996 Michael Rendell ([e-mail])

	* exec.c(findfunc): removed redundent DEFINED check after tsearch().

Fri Aug  9 22:16:21 NDT 1996 Michael Rendell ([e-mail])

	* jobs.c(j_change): when turning off FMONITOR and not FTALKING,