Source Code 1994 March/Source_Code_CD-ROM_Walnut_Creek_March_1994.iso/compsrcs/unix/volume26/utree/part05

Text File | 1992-09-06 | 69.5 KB | 2,170 lines

Newsgroups: comp.sources.unix
From: [e-mail] (Peter Klingebiel)
Subject: v26i068: utree - screen oriented filesystem utility (V3.03b-um), Part05/08
Sender: [e-mail]
Approved: [e-mail]

Submitted-By: [e-mail] (Peter Klingebiel)
Posting-Number: Volume 26, Issue 68
Archive-Name: utree/part05

#! /bin/sh
# This is a shell archive.  Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file".  To overwrite existing
# files, type "sh file -c".  You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g..  If this archive is complete, you
# will see the following message at the end:
#        "End of archive 5 (of 8)."
# Contents:  lib/utree.help src/list.c src/vars.c
# Wrapped by [e-mail] on Mon Sep  7 14:39:56 1992
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f 'lib/utree.help' -a "${1}" != "-c" ; then
  echo shar: Will not clobber existing file \"'lib/utree.help'\"
else
echo shar: Extracting \"'lib/utree.help'\" \(22386 characters\)
sed "s/^X//" >'lib/utree.help' <<'END_OF_FILE'
X#
X#       UTREE.HELP
X#       UTREE help pages
X#       3.03-um klin, Sun Feb 23 18:45:19 1992
X#       Directory:      /usr/local/lib (default)
X#
X#       Copyright (c) 1991/92 by Peter Klingebiel & UNIX Magazin Muenchen.
X#       For copying and distribution information see the file COPYRIGHT.
X#
X#       Help about items is enclosed in two lines '#@item' and '#@'.
X#       The string 'item' is used as item for the menuline, the lines
X#       between these opening and closing lines are the help lines
X#       for the topic 'item'. The upper case character in 'item' is used
X#       as hotkey for selecting help about this topic.
X#       Be sure that all items separated by a blank fit in one screen line!
X#       Don't change the hot keys because they are hard coded in utree!
X#
X#       SCCSID=@(#) utree 3.03-um (klin) Feb 23 1992 lib/utree.help
X
X#@Help          h: About help
X
X       The utree help page menu lets you select help pages about the
X       following topics (menu hotkeys are enclosed in brackets):
X
X       (h) Help        This help page.
X       (a) About       About utree and some naming conventions.
X       (u) Usage       Utree usage and command line options.
X       (g) Global      Global commands for tree and file screen.
X       (t) Tree        Commands for the tree screen.
X       (f) File        Commands for the file screen.
X       (e) Edit        Commands for the builtin line editor.
X       (v) Vars        Utree variables and variable definition.
X       (c) Cmds        Filetype dependent command definition.
X       (l) Line        Line format for tree, file and filetype commands.
X       (k) Keys        Function keys used by utree.
X       (p) Patterns    File and time pattern matching.
X#@
X#@About         a: About utree and key naming conventions
X
X       This is utree 3.03-um, a screen oriented filesystem browser.
X
X         Copyright (c) 1991/92 Peter Klingebiel & UNIX Magazin.
X                       All rights reserved.
X
X       First utree version (utree 1.00) created in July 1988.
X
X       The naming conventions for keys in the help pages are:
X       'C-key' means hold the <CONTROL>-key and hit <key>,
X       'key' means a single keystroke on the key <key>.
X
X       For many commands on tree and file screen case is significant.
X       Commands given in lowercase letters work on the current directory
X       or file, commands given in uppercase letters work on the current
X       subtree or on tagged files in current subtree or directory.
X
X       Many function keys are supported by utree, i.e the four cursor
X       keys, the begin and end key and some others. For more information
X       about default key bindings and user definable keybindings see
X       the keys help page.
X#@
X#@Usage         u: About utree usage and command line options
X
X       Usage:  utree [-LSVabcghnrqstuw] [-d var=[val]] [-d typ:[cmd]]
X                     [-f lst] [-i ind] [-l lev] [-p lin] [-v mod] [-x cmd]
X                     [rootdir]
X
X       The meaning of the command line options is:
X
X       -L              Follow symbolic links.
X       -S              Ignore default minimal screen size.
X       -V              Display program version.
X       -a              Read in all (including hidden) directories.
X       -b              Suppress ringing of the bell.
X       -c              Don't display and update a clock in echoline.
X       -d var=[val]    Define/undefine variable var.
X       -d typ:[cmd]    Set/unset type command for filetype typ.
X       -f lst          Build tree from list file lst.
X       -g              Don't use graphic characters.
X       -h              Display usage and meaning of command line options.
X       -i ind          Set maximal tree indention to ind
X       -l lev          Build tree up to level lev.
X       -n              Don't scan tree for changes in tree.
X       -o              Omit saving changes in history/definitions/bindings.
X       -p lin          Set file window to lin lines (1..9)
X       -q              Build tree up to level 2 (like -l 2).
X       -r              Recreate tree list (always scan disk).
X       -s              Don't use hardware scrolling.
X       -t              Sort files by modification times.
X       -u              Update file lists in tree.
X       -v mod          Set video attribute setting (0,1,2)
X       -w              Suppress warnings about unreadable directories.
X       -x cmd          Use string cmd as initial command input.
X
X       The boolean options bcgnosw and the numerical options ipv may also
X       be pre-set in the environment variable UTREE.
X#@
X#@Global        g: About global commands for tree and file screen
X
X       The following commands are common for tree and file screen:
X
X       C-z             Terminate and leave utree.
X       C-c,C-y         Cancel command or input.
X       C-l             Refresh/redisplay screen.
X       Tab,C-t         Move to next tagged directory or file.
X       h,?.C-r         Change to help screen for displaying help pages.
X       @,C-@           Mark current directory or file.
X       #,C-g           Move to previously marked directory/file or position.
X       a               Display utree version.
X       d               Display current date and time.
X       j               Next directory or file (for vi fans).
X       k               Previous directory or file (for vi fans).
X       w               Display full pathname of current directory.
X       =               Change to variables screen for setting variables.
X       :               Change to commands screen for setting filetype commands.
X       |               Change to bindings screen for binding keys.
X       !               Change to shell screen for execution of shell commands.
X       $               Escape to an interactive shell session.
X#@
X#@Tree          t: About utree directory tree screen commands
X
X       All tree commands can be given in lowercase or uppercase letters For
X       some commands a lowercase letter hits the current directory only, an
X       uppercase letter hits a complete subtree or all tagged files in subtree.
X
X       >,CR,NL,SP      Change to file screen of current directory.
X       <               Change to file screen of parent directory.
X       C-n             Move to next directory.
X       C-p             Move to previous directory.
X       C-f             Move to next directory on same level.
X       C-b             Move to previous directory on same level.
X       C-v             Move one page forward.
X       C-w             Move one page backward.
X       C-a             Move to begin of directory tree.
X       C-e             Move to end of directory tree.
X       TAB,C-t         Move to next directory containing tagged files.
X       C-u             Scroll up directory tree.
X       C-d,            Scroll down directory tree.
X       @,C-@           Mark current directory.
X       #,C-g           Goto previously marked directory.
X       b,B             Backup all files/tagged files in subtree.
X       c,C             Change to a directory/Copy tagged files.
X       f,F             Find files in current directory/subtree.
X       g,G             Search for pattern in files in directory/subtree.
X       i               Show some directory information.
X       l,L             List files/tagged files in current subtree.
X       m,M             Make a new directory/Move tagged files.
X       n,N             Change sort criteria, sort files in directory/subtree.
X       o               Write a list of directories, files or tagged files.
X       q               Exit utree.
X       r,R             Remove current directory/Remove tagged files.
X       s               Show/change status of current directory.
X       t,T             Tag files in current directory/subtree.
X       u,U             Untag files in current directory/subtree.
X       z,Z             Zoom files in current directory/subtree.
X       +               Enlarge tree window if possible.
X       -               Shrink tree window if possible.
X       /               Scan tree and rebuild directories if needed.
X       \               Scan directory for subdirectories and insert subtree.
X       0               Switch tree/user commands menuline.
X       1..9            Execute user defined tree command.
X
X       For further information about filename patterns for the commands find,
X       grep, list, tag, untag and zoom see the pattern help page.
X#@
X#@File          f: About utree file screen commands
X
X       All file commands can be given in lower or upper case letters.
X       For most commands a lowercase letter hits the current file only,
X       an uppercase letter hits all selected (tagged) files.
X
X       q,CR,NL,SP      Change back to tree screen.
X       C-f             Move to next file.
X       C-b             Move to previous file.
X       C-n             Move to file on next line.
X       C-p             Move to file on previous line.
X       C-v             Move one page forward.
X       C-w             Move one page backward.
X       C-a             Move to first file.
X       C-e             Move to last file.
X       TAB,C-t         Move to next tagged file.
X       C-u             Scroll up file screen.
X       C-d             Scroll down file screen.
X       @,C-@           Mark current file.
X       #,C-g           Goto previously marked file.
X       c,C             Copy file/tagged files.
X       e,E             Edit file/tagged files.
X       f               Find files matching a pattern.
X       g,G             Search for pattern in file/tagged files.
X       i,I             Show some information about file/tagged files.
X       l,L             List files matching a pattern/tagged files.
X       m,M             Rename/move file/tagged files.
X       n               Change sort criteria and resort file list.
X       p,P             Send file/tagged files to printer spooler.
X       r,R             Remove file/tagged files.
X       s,S             Show/change status of file/tagged files.
X       t,T             Tag/select files for further processing.
X       u,U             Untag file/tagged files.
X       v,V             View file/tagged files.
X       x               Execute current file or call a command for it.
X       z               Zoom files in file list.
X       >               If current file is a directory, change to.
X       <               Change back to parent directory.
X       /               Rebuild file list (i.e. after shell escape).
X       0               Switch file/user commands menuline.
X       1..9            Execute user defined file command.
X
X       For further information about filename patterns for the commands find,
X       grep, list, tag, untag and zoom see the pattern help page.
X#@
X#@Edit          e: About utree line editor commands
X
X       The builtin utree line editor knows the following functions:
X       (Function keys are supported if known by termcap/terminfo)
X
X       CR,NL           Accept and send input line.
X       C-c,C-y         Cancel input line and line editor.
X       C-o             Switch insert/overwrite mode.
X       C-l             Redisplay input line.
X       C-f             Move cursor one character forward.
X       C-b             Move cursor one character backward.
X       C-a             Move cursor to beginning of line.
X       C-b             Move cursor to end of line.
X       C-v             Scroll forward line.
X       C-w,            Scroll backward line.
X       C-d             Delete character under cursor.
X       C-h,DEL         Delete character left from cursor.
X       C-x             Delete line.
X       C-k             Delete from cursor position to end of line.
X       C-t             Transpose characters under and left from cursor.
X       C-r             Display help menu and pages.
X       C-@             Set mark at current position.
X       C-g             Move cursor to previously set mark.
X       C-p             Get previous list entry into line editor.
X       C-n             Get next list entry into line editor.
X#@
X#@Vars          v: About utree variables
X
X       Utree knows about and uses the following variables which may be
X       set/unset at startup in the startupfile '$HOME/.utree', with the
X       commandline option '-d' or the variables command '=':
X
X       BL      BELL            Allow ringing of the bell.
X       CL      CLOCK           Show and update clock every second.
X       GC      GRAPHCHARS      Use graphical character set.
X       TS      TERMSCROLL      Use hardware terminal scrolling.
X       ST      SCANTREE        Allow scanning the filesystem for changes.
X       WD      WARNDIRS        Make warnings about unreadable directories.
X       LS      LEXSORT         Sort filenames in file lists in lexical order.
X       AS      AUTOSAVE        Save changes in history, variables and command
X                               definitions and key bindings.
X       TI      TREEINDENT      Maximal tree indention on tree screen (3..9).
X       VM      VIDEOMODE       Using of video attributes (0=none,1,2=all).
X       FL      FILELINES       Maximal file lines on tree screen (1..9).
X       HS      HISTSIZE        Size of history list (Settable at startup only).
X       SH      SHELL           Interactive shell.
X       ED      EDITOR          Editor.
X       EO      EDITOPTS        Editor options.
X       PG      PAGER           File pager/viewer.
X       PO      PAGEOPTS        Pager options.
X       XD      XDUMPER         File hexdumper.
X       XO      XDUMPOPTS       Dumper options.
X       LP      LPRINTER        Printer spooler command.
X       LO      LPRINTOPTS      Printer options.
X       BK      BACKUP          Backup program.
X       BO      BACKUPOPTS      Backup options.
X       T1..9   TREECMD1..9     User defined commands 1..9 for tree screen.
X       F1..9   FILECMD1..9     User defined commands 1..9 for file screen.
X
X       Variables are set with a line 'shorthand=value' or 'variable=value'
X       (i.e. 't1=ps -ef'), unset with a line 'shorthand=' or 'variable='
X       (i.e. 't1='). When defining user tree or file commands some sprintf
X       like format characters lead in by a percent sign ('%') have a
X       special meaning and are expanded before the command is executed (See
X       also the help page line). A sharp sign (#) in a variable definition
X       is used as leadin for a menu item of the defined user file or tree
X       command or as comment.
X
X       E.g.: the variable definition 'fc1=wc -l %F # Count' for user
X       defined file command 1 is expanded to 'wc -l filename' and in the
X       user command file menu 'Count' is displayed behind menu item 1.
X#@
X#@Cmds          c: About filetype dependent commands
X
X       On file screen you can execute a file or a command on it with
X       the utree command execute ('x'). You are requested for parameters
X       if the current file is executable, for a command to execute on the
X       current file if the current file is not executable. For a type of file
X       you can define so called filetype commands which are called if the
X       current file matches this filetype (or extension).
X
X       Filetype commands can be set/unset at startup in the startupfile
X       '$HOME/.utree', with the commandline option '-d' or the filetype
X       command ':' similar to setting/unsetting variables.
X       Filetype commands are set with a line like 'filetype:command'
X       (e.g. '*.c:cc -c -O'). The command ('cc -c -O') is then executed if
X       the current file matches the filetype pattern (e.g. '*.c' for 'foo.c').
X       Filetype commands are unset with a line 'filetype:' (i.e. '*.c:').
X
X       When defining filetype commands some sprintf like format characters
X       lead in by a percent sign ('%') have a special meaning and are
X       expanded before the command is executed. For further information
X       about filename patterns and the format characters and her meaning
X       see the pattern and line help pages.
X#@
X#@Line          l: About line format for tree, file and filetype commands
X
X       When defining a user defined tree or file command or a filetype
X       command or when entering a shell command some sprintf like format
X       characters are known and expanded before the command is executed.
X       These format characters and their meaning are:
X
X       %B,%b   Basename of current file or directory.
X       %D,%d   Full pathname of current directory.
X       %F,%f   Filename of current file or directory.
X       %H,%h   Full pathname of home directory.
X       %R,%r   Full pathname of root directory.
X       %P,%p   Full pathname of current file or directory.
X       %S,%s   Additional parameter(s) for a command which are requested
X               before the command is executed.
X
X       E.g. the command line 'command %s %f >%b.out' is expanded before
X       execution to 'command parameters filename basename.out' with filename
X       and basename.out ('%f', '%b.out') of the current file or directory and
X       parameters ('%s') which are requested before the command is executed.
X
X       For further information about tree/file and filetype commands see
X       the vars and defs help pages.
X#@
X#@Keys          k: About default and user definable key bindings
X
X       The following list denotes the names of all utree keys, their default
X       key bindings and their meanings on tree and file screen or in the line
X       editor (See also the help pages global, tree, file and edit).
X
X       SELECT   (CR,NL) Select directory/file or accept input line.
X       FORWARD  (C-f)   Move forward directory/file or character.
X       BACKWARD (C-b)   Move back directory/file or character.
X       NEXT     (C-n)   Move to next directory or file or get next list entry
X                        into the line editor.
X       PREVIOUS (C-p)   Move to previous directory or file or get previous list
X                        entry into the line editor.
X       NEXTPAGE (C-v)   Next page/Scroll forward input line.
X       PREVPAGE (C-w)   Previous page/Scroll backward input line.
X       BEGIN    (C-a)   Move to beginning of directories/files or input line.
X       END      (C-e)   Move to end of directories/files or input line.
X       UP       (C-u)   Scroll down up one line directories or files.
X       DOWN     (C-d)   Scroll down one line directories or files (on screens)
X                        or delete character under the cursor (in line editor).
X       INSERT   (C-o)   Toggle insert/overwrite mode flag (in line editor)
X                        or change to current directory (on screens).
X       DELETE   (BS)    Delete character left from cursor (in editor) or
X                        change to parent directory (on screens).
X       KILL     (C-k)   Delete from cursor position to end of input line.
X       SETMARK  (C-@)   Set a mark on current directory/file or at cursor
X                        position.
X       GOTOMARK (C-g)   Move to previously marked directory/file or character.
X       GOTOTAG  (TAB)   Move to tagged directory or file (on screens) or
X                        transpose characters (in line editor).
X       HELP     (C-r)   Get help pages and change to help screen.
X       REFRESH  (C-l)   Refresh and redraw screen or input line.
X       CANCEL   (C-x)   Delete whole input line and leave line editor.
X       BREAK    (C-c)   Break current command or line editor.
X       EXIT     (C-z)   Terminate and leave utree.
X
X       The following function keys are bound at startup if they are defined
X       in your system's termcap or terminfo database:
X
X       CursorRight     FORWARD
X       CursorLeft      BACKWARD
X       CursorUp        PREVIOUS
X       CursorDown      NEXT
X       Home/Begin      BEGIN
X       End             END
X       NextPage        NEXTPAGE
X       PreviousPage    PREVPAGE
X       ScrollUp        UP
X       ScrollDown      DOWN
X       Insert          INSERT
X       Delete          DELETE
X       Clear           REFRESH
X       Help            HELP
X       Select          SELECT
X       Do/Command      SELECT
X       Mark            SETMARK
X       Enter           SELECT
X
X       You may bind any key to the denoted utree key symbols or to string on
X       the binding screen or in terminal startup files with the name
X       '.utree-term' in your home directory ('term' is the terminal type from
X       $TERM). This files contain lines built like 'key_sequence=key_name'
X       or 'keysequence="string"' for string insertion bindings.
X       E.g. the line '\eh=HELP' binds the key <ESC><h> to HELP and and the
X       line '\ei="insert"' binds <ESC><i> to insertion of the string 'insert'
X       into the input buffer for further reading and interpretation.
X#@
X#@Patterns      p: About pattern matching
X
X       Some commands (list, find, grep, tag or untag) require filename
X       patterns for matching files using some special (meta) characters.
X
X       File NAME pattern matching interprets the following meta chars:
X       *       matches all characters in a filename.
X       ?       matches one character in a filename.
X       [class] matches all characters enclosed in brackets '[' and ']'
X               where '!' and '-' have a special meaning, i.e.
X               [abc]   matches the characters 'a', 'b' and 'c'.
X               [a-z_]  matches the characters from 'a' to  'z' and '_'.
X               [!a-z_] matches all characters except 'a' to 'z' and '_'.
X
X       File SIZE pattern matching interprets the following meta chars:
X       =size   matches all files equate size
X       !size   matches all files not equate size
X       >size   matches all files larger than size
X       <size   matches all files smaller than size
X       You may specify the file size in bytes (b, default), kilo bytes (k)
X       or mega bytes (m), i.e. '>2k' matches all files larger than 2 kb or
X       2048 bytes.
X
X       File TIME pattern matching interprets the following meta chars:
X       )time   matches all files modified within time.
X       (time   matches all files not modified within time.
X       You may specify time in minutes (m), hours (h, default), days (d) or
X       weeks (w), i.e. ')2d' matches all files modified within last 2 days.
X
X       To combine file name, size and time patterns use
X       &       for ANDing of name/size/time patterns
X       |       for ORing  of name/size/time patterns.
X       If a character is preceeded by a backslash (\) or enclosed in quotes
X       his interpretation is suppressed and he is used as he is.
X#@
X
END_OF_FILE
if test 22386 -ne `wc -c <'lib/utree.help'`; then
    echo shar: \"'lib/utree.help'\" unpacked with wrong size!
fi
# end of 'lib/utree.help'
fi
if test -f 'src/list.c' -a "${1}" != "-c" ; then
  echo shar: Will not clobber existing file \"'src/list.c'\"
else
echo shar: Extracting \"'src/list.c'\" \(22046 characters\)
sed "s/^X//" >'src/list.c' <<'END_OF_FILE'
X/*
X *      LIST.C
X *      UTREE directory and file list handling routines.
X *      3.01-um klin, Tue Jun  4 14:17:17 1991
X *              klin, Tue Oct 15 14:02:37 1991, Handling of symlinks changed
X *              klin, Sat Oct 26 15:07:06 1991, Print tree list added
X *                                              writedlist() changed
X *      3.02-um klin, Fri Nov  1 13:41:58 1991, Minor changes
X *              klin, Sun Nov 10 19:37:14 1991, buildlist() changed
X *              klin, Sun Nov 24 11:44:49 1991, Some error fixes reported by
X *                                              Rolf Gebhardt (RG 11/22/91)
X *      3.03-um klin, Sat Feb 15 20:09:09 1992, Minor changes
X *
X *      Copyright (c) 1991/92 by Peter Klingebiel & UNIX Magazin Muenchen.
X *      For copying and distribution information see the file COPYRIGHT.
X */
X#ifndef lint
static char sccsid[] = "@(#) utree 3.03-um (klin) Feb 15 1992 list.c";
X#endif  /* !lint */
X
X#include "defs.h"
X
X/* ---- External variables and functions ------------------------------ */
X
XEXTRN char *readdname();
XEXTRN char *getversion();
X
X/* ---- Local/global functions and procedures --------------------------*/
X
X/*
X *      INTERNAL USED ROUTINES
X */
X
X/* Compare filenames from flist. Called by qsort() */
LOCAL int flistcmp(f1, f2)
X  register flist *f1, *f2;
X{
X  if(sortbytime) {
X    if(FPTIM(f1) < FPTIM(f2))
X      return(99);
X    else if(FPTIM(f1) > FPTIM(f2))
X      return(-99);
X  }
X  return(CMP(FPFIL(f1), FPFIL(f2)));
X
X} /* flistcmp() */
X
X/* Compare filenames from directory name vector. Called by qsort() */
LOCAL int dlistcmp(d1, d2)
X  register char **d1, **d2;
X{
X  return(CMP(*d1, *d2));
X
X} /* dlistcmp() */
X
X/* Count directory level */
LOCAL int countlevl(name)
X  register char *name;
X{
X  register int n;
X
X  if(*name == '/' && *(name+1) == '\0')
X    return(0);
X  n = 0;
X  while(*name)
X    if(*name++ == '/')
X      ++n;
X  return(n);
X
X} /* countlevl() */
X
X/* Align buffer size to avoid too often alloc and free */
LOCAL unsigned alignbsiz(s, n)
X  register unsigned s;
X  register int n;
X{
X  register unsigned ns;
X
X  if(s == 0 || n == 0)
X    ns = 0;
X  else
X    for(ns = NBUFSZ; ns < s; ns += NBUFINC)
X      ;
X  return(ns);
X
X} /* alignbsiz() */
X
X/* Align filevector size to avoid too often alloc and free */
LOCAL int alignnfils(n)
X  register int n;
X{
X  register int nn;
X
X  if(n == 0)
X    nn = 0;
X  else
X    for(nn = NFILES; nn < n; nn += NFILINC)
X      ;
X  return(nn);
X
X} /* alignnfils() */
X
X/*
X *      FILE LIST ROUTINES
X */
X
X/* Update file f in file list */
LOCAL VOID insertflist(dp, f)
X  register dlist *dp;
X  register int f;
X{
X  struct stat st;
X  register char *pn;
X
X  /* Get mode flag for file */
X  pn = pathname(FFNAM(dp, f), DPNAM(dp));
X  if((*statfun)(pn, &st) == 0) {
X    switch(STFMT(&st)) {
X#ifdef  S_IFLNK
X      case S_IFLNK:             /* Symbolic link */
X       FMODE(dp, f) = FF_SLNK;
X       break;
X#endif  /* S_IFLNK */
X#ifdef  S_IFSOCK
X      case S_IFSOCK:            /* Socket */
X       FMODE(dp, f) = FF_SOCK;
X       break;
X#endif
X      case S_IFDIR:             /* Directory */
X       FMODE(dp, f) = FF_DIR;
X       ++DNDIR(dp);
X       break;
X      default:                  /* Executable or other file */
X       FMODE(dp, f) = (st.st_mode & 0111) ? FF_EXEC : FF_NONE;
X       break;
X    }
X    FMTIM(dp, f) = st.st_mtime;
X    FSIZE(dp, f) = st.st_size;
X  }
X  else {
X    FMODE(dp, f) = FF_ERR;
X    FMTIM(dp, f) = (time_t) 0;
X    FSIZE(dp, f) = (off_t) 0;
X  }
X  FITAG(dp, f) = FF_NONE;
X
X} /* insertflist() */
X
X/* Delete an entry from file list */
GLOBL VOID deleteflist(dp, f)
X  register dlist *dp;
X  register int f;
X{
X  register int n;
X
X  /* Do nothing and return if file list is not yet read in (RG 11/22/91) */
X  if(DFVEC(dp) == FNULL)
X    return;
X  /* Move up file name, tag and mode flag in file list */
X  n = f + 1;
X  if(FITAG(dp, f) && DNTAG(dp) > 0)
X    --DNTAG(dp);
X  while(n < DNFIL(dp)) {
X    FFNAM(dp, f) = FFNAM(dp, n);
X    FITAG(dp, f) = FITAG(dp, n);
X    FMODE(dp, f) = FMODE(dp, n);
X    ++f;
X    ++n;
X  }
X  /* Decrement counters */
X  --DNFIL(dp);
X  --filecount;
X
X} /* deleteflist() */
X
X/* Sort or resort file list from directory dp */
GLOBL VOID sortflist(dp)
X  register dlist *dp;
X{
X  register int f;
X
X  f = sortbytime;
X  sortbytime = DSORT(dp) ? 1 : 0;       /* Set flag for comparing */
X  if(DNFIL(dp) > 0)                     /* Sort/resort file list */
X    qsort((char *) DFVEC(dp), (unsigned) DNFIL(dp), sizeof(flist), flistcmp);
X  sortbytime = f;
X
X} /* sortflist() */
X
X/* Zoom file list of directory dp */
GLOBL VOID zoomflist(dp)
X  register dlist *dp;
X{
X  register int f, n;
X
X  if(DZOOM(dp)) {
X    for(f = n = 0; f < DNFIL(dp); f++)
X      if(umatch(dp, f, DZOOM(dp))) {
X       if(n != f)
X         FLIST(dp, n) = FLIST(dp, f);
X       ++n;
X      }
X    DNFIL(dp) = n;
X  }
X
X} /* zoomflist() */
X
X/* Rebuild file list in some cases (i.e. cp, mv ..) */
GLOBL int newflist(dp)
X  register dlist *dp;
X{
X  char cfnam[NAMELEN];
X  struct stat st;
X  register flist *fv;
X  register char *fbp, *name, *fb;
X  register int i, j, k, nfil, ntag;
X  register unsigned size;
X  register DIR *dirfp;
X
X  (void) putecho("Building %s", DPNAM(dp));
X  flushout();
X  /* Set/reset counter */
X  nfil = DNFIL(dp);
X  ntag = DNTAG(dp);
X  filecount -= DNFIL(dp);
X  DNFIL(dp) = DNDIR(dp) = DNTAG(dp) = 0;
X
X  /* Get status of directory and read in */
X  if((*statfun)(DPNAM(dp), &st) == 0 && (dirfp = opendir(DPNAM(dp)))) {
X    /* Save name of current file */
X    if(nfil > 0) {
X      (void) strcpy(cfnam, FFNAM(dp, DFCUR(dp)));
X      /* Save flist array and file buffer */
X      if(ntag > 0) {
X       fb = DFBUF(dp);
X       fv = DFVEC(dp);
X       DFBUF(dp) = NULL;
X       DBSIZ(dp) = 0;
X      }
X    }
X    /* Count files */
X    for(i = 0; readdname(dirfp); i++)
X      ;
X    rewinddir(dirfp);
X    /* Align file count and buffer size */
X    i = alignnfils(i);
X    size = alignbsiz((unsigned) st.st_size, i);
X    /* Release current file list and file name buffer if needed */
X    if(DFBUF(dp) && DBSIZ(dp) < size) {
X      ufree(DFBUF(dp));
X      ufree((char *) DFVEC(dp));
X      DFBUF(dp) = NULL;
X      DBSIZ(dp) = 0;
X    }
X    /* Get memory for file list and file name buffer if not yet done */
X    if(DFBUF(dp) == NULL && i > 0) {
X      DFBUF(dp) = (char *)  ualloc(size, sizeof(char));         /* RG 11/22/91 */
X      DFVEC(dp) = (flist *) ualloc((unsigned) i, sizeof(flist));
X      DBSIZ(dp) = size;
X    }
X    /* Fill up file list and file name buffer */
X    for(i = 0, fbp = DFBUF(dp); name = readdname(dirfp); i++) {
X      FFNAM(dp, i) = strcpy(fbp, name);
X      fbp += strlen(name) + 1;
X      insertflist(dp, i);
X    }
X    closedir(dirfp);
X    DNFIL(dp) = i;
X    sortflist(dp);
X    if(DZOOM(dp))
X      zoomflist(dp);
X    /* Set up other directory data */
X    DFLAG(dp) = FL_FIL;
X    DMTIM(dp) = st.st_mtime;
X    DCTIM(dp) = st.st_ctime;
X    DCANC(dp) = CANCD(DPNAM(dp));
X    /* Try to restore current file */
X    DFTOP(dp) = DFCUR(dp) = 0;
X    if(nfil > 0) {
X      for(i = 0; i < DNFIL(dp); i++)
X       if(cfnam[0] != *FFNAM(dp, i) || CMP(cfnam, FFNAM(dp, i)))
X         (void) gofile(dp, 1);
X       else
X         break;
X      if(i >= DNFIL(dp))
X       while(gofile(dp, -1))
X         ;
X      /* Try to restore tagged files */
X      if(ntag > 0) {
X       i = j = 0;
X       while(i < nfil) {
X         if(FVTAG(fv, i) == FF_TAG)
X           for(k = j; k < DNFIL(dp); k++)
X             if(*FVFIL(fv,i) == *FFNAM(dp,k) && EQU(FVFIL(fv,i), FFNAM(dp,k))) {
X               FITAG(dp, k) = FF_TAG;
X               ++DNTAG(dp);
X               j = k;
X               break;
X             }
X         ++i;
X       }
X      }
X    }
X    filecount += DNFIL(dp);
X  }
X  /* Error in stat: use defaults */
X  else {
X    ufree(DFBUF(dp));
X    ufree((char *) DFVEC(dp));
X    DFBUF(dp) = NULL;
X    DFVEC(dp) = FNULL;
X    DBSIZ(dp) = 0;
X    DFLAG(dp) = FL_FIL;
X    DMTIM(dp) = DCTIM(dp) = (time_t) -1;
X    DCANC(dp) = 0;
X    DFCUR(dp) = DFTOP(dp) = 0;
X    fileflag |= SF_TREE;
X    if(VARSET(V_WD)) {
X      puthelp("BUILD %s (Y:exit  ELSE:continue)", DPNAM(dp));
X      if(errequest(CFNAM, "Cannot read directory. Exit ?") == 'y')
X       return(RV_END);
X    }
X  }
X
X  /* Release saved flist array and file buffer */
X  if(ntag > 0) {
X    ufree(fb);
X    ufree((char *) fv);
X  }
X
X  /* Set screen flags */
X  treeflag |= SF_ECHO;
X  fileflag |= SF_ECHO;
X
X  return(RV_OK);
X
X} /* newflist() */
X
X/*
X *      DIRECTORY LIST ROUTINES
X */
X
X/* Build and set tree info flag */
GLOBL VOID infodlist()
X{
X  register dlist *dp, *np;
X  register int i, j;
X
X  /* For each dir in tree check if there are dirs on the same level */
X  for(dp = droot; dp; dp = (dlist *) DNEXT(dp)) {
X    DINFO(dp) = 0;
X    for(i = 1, j = DLEVL(dp) - 1; i < j; i++) {
X      for(np = (dlist *) DNEXT(dp); np && DLEVL(np) > (i + 1); np = (dlist *) DNEXT(np))
X       ;
X      if(np && DLEVL(np) == (i + 1))
X       DINFO(dp) |= 1 << (i - 1);
X    }
X    for(np = (dlist *) DNEXT(dp); np && DLEVL(np) > DLEVL(dp); np = (dlist *) DNEXT(np))
X      ;
X    if(np && DLEVL(np) == DLEVL(dp))
X      DINFO(dp) |= 1 << (i - 1);
X  }
X
X} /* infodlist() */
X
X/* Insert directory dname into directory tree list */
LOCAL dlist *insertdlist(dname, nfils, fvec)
X  register char *dname;
X  register int nfils;
X  register flist *fvec;
X{
X  register dlist *dp, *rp;
X  register char *np;
X  register int f;
X
X  /* Get memory and save directory name */
X  dp = (dlist *) ualloc(1, sizeof(dlist));
X  np = strsav(pathname(dname, "/"));
X
X  /* Set up pathname/filename and file list */
X  DPNAM(dp) = np;
X  DFNAM(dp) = basename(np);
X  DZOOM(dp) = NULL;
X  DNFIL(dp) = nfils;
X  DFVEC(dp) = fvec;
X  DNEXT(dp) = GNULL;
X  DFCUR(dp) = DFTOP(dp) = 0;
X  DNTAG(dp) = 0;
X  /* For each file in file list create an entry */
X  for(f = 0; f < nfils; f++)
X    insertflist(dp, f);
X
X  /* Insert dlist into tree list */
X  if(droot == DNULL) {
X    DPREV(dp) = GNULL;
X    droot = dp;
X  }
X  else {
X    for(rp = droot; DNEXT(rp); rp = (dlist *) DNEXT(rp))
X      ;
X    DNEXT(rp) = (glist *) dp;
X    DPREV(dp) = (glist *) rp;
X  }
X
X  /* Increment directory and file counters */
X  ++dircount;
X  filecount += nfils;
X
X  return(dp);
X
X} /* insertdlist() */
X
X/* Rebuild directory list after creating a new directory */
GLOBL dlist *newdlist(name, flag)
X  register char *name;
X  register int flag;
X{
X  struct stat st;
X  register dlist *dp, *pdp, *ndp, *p;
X  register char *np;
X  register int levl;
X
X  /* Allocate memory for new dlist entry and for pathname */
X  ndp = (dlist *) ualloc(1, sizeof(dlist));
X  np  = strsav(pathname(name, CPNAM));
X
X  /* Insert dlist into directory tree */
X  levl = CLEVL + 1;
X  for(pdp = cdlist, dp = (dlist *) CNEXT; dp && DLEVL(dp) >= levl; dp = (dlist *) DNEXT(dp)) {
X    if(DLEVL(dp) == levl && CMP(np, DPNAM(dp)) < 0)
X      break;
X    pdp = dp;
X  }
X  if(DNEXT(ndp) = DNEXT(pdp)) {
X    p = (dlist *) DNEXT(ndp);
X    DPREV(p) = (glist *) ndp;
X  }
X  DNEXT(pdp) = (glist *) ndp;
X  DPREV(ndp) = (glist *) pdp;
X
X  /* Fill up dlist record data */
X  DPNAM(ndp) = np;
X  DFNAM(ndp) = basename(np);
X  DZOOM(ndp) = NULL;
X  if((*statfun)(np, &st)) {     /* Bad stat: use defaults */
X    DMTIM(ndp) = DCTIM(ndp) = (time_t) -1;
X    DFLAG(ndp) = FL_FIL;
X    DCANC(ndp) = 0;
X  }
X  else {
X    DMTIM(ndp) = st.st_mtime;
X    DCTIM(ndp) = st.st_ctime;
X    DFLAG(ndp) = flag;
X    DCANC(ndp) = CANCD(np);
X  }
X  DSORT(ndp) = sortbytime ? 1 : 0;
X  DFBUF(ndp) = NULL;
X  DFVEC(ndp) = FNULL;
X  DBSIZ(ndp) = 0;
X  DLEVL(ndp) = levl;
X  if(DLEVL(ndp) > maxlevel)
X    maxlevel = DLEVL(ndp);
X  DNFIL(ndp) = DNDIR(ndp) = 0;
X  DDNUM(ndp) = DDNUM(pdp) + 1;
X  DFCUR(ndp) = DFTOP(ndp) = 0;
X  DNTAG(ndp) = 0;
X
X  /* Increment all following dlist entry numbers */
X  for(dp = (dlist *) DNEXT(ndp); dp; dp = (dlist *) DNEXT(dp))
X    ++DDNUM(dp);
X
X  /* Update counter, flags and return */
X  ++CNDIR;
X  ++dircount;
X  writeflag = 1;
X  checkindent();
X  infodlist();
X  return(ndp);
X
X} /* newdlist() */
X
X/* Delete current entry from directory list */
GLOBL VOID deletedlist(rp)
X  register dlist *rp;
X{
X  register dlist *dp, *p;
X  register int f;
X
X  /* Search for parent directory of directory list entry dp */
X  for(dp = rp; dp && DLEVL(dp) >= DLEVL(rp); dp = (dlist *) DPREV(dp))
X    ;
X
X  /* If found destroy file list entry in parent directory */
X  if(dp) {
X    if(DFVEC(dp)) {             /* RG 11/22/91 */
X      for(f = 0; f < DNFIL(dp); f++)
X       if(EQU(FFNAM(dp, f), DFNAM(rp)))
X         break;
X      deleteflist(dp, f);
X    }
X    --DNDIR(dp);
X  }
X
X  /* Close the directory tree list chain */
X  if(DNEXT(rp)) {
X    for(dp = (dlist *) DNEXT(rp); DNEXT(dp); dp = (dlist *) DNEXT(dp))
X      ;
X    while(dp != rp) {
X      p = (dlist *) DPREV(dp);
X      DDNUM(dp) = DDNUM(p);
X      dp = (dlist *) DPREV(dp);
X    }
X    p = (dlist *) DNEXT(rp);
X    DPREV(p) = DPREV(rp);
X  }
X  if(p = (dlist *) DPREV(rp))
X    DNEXT(p) = DNEXT(rp);
X
X  /* Release memory */
X  ufree(DPNAM(rp));
X  ufree(DFBUF(rp));
X  ufree((char *) DFVEC(rp));
X  if(DZOOM(rp))
X    ufree(DZOOM(rp));
X  ufree((char *) rp);
X
X  /* Decrement directory counter and update tree info flag */
X  --dircount;
X  infodlist();
X
X} /* deletedlist() */
X
X/* Write out directory list dependent on w to file name */
GLOBL char *writedlist(name, rp, what, w)
X  register dlist *rp;
X  register char *name, *what;
X  register int w;
X{
X  char list[NAMELEN];
X  register FILE *fp;
X  register dlist *dp, *p;
X  register unsigned long info;
X  register int f, i, levl;
X  time_t t;
X
X  (void) strcpy(list, pathname(name, CPNAM));
X  if(fp = fopen(list, "w")) {
X    t  = time((time_t *) 0);
X    if(w == 'm')
X      (void) fprintf(fp, "# %s: file list (matching %s)", getversion(), what);
X    else
X      (void) fprintf(fp, "# %s: %s list", getversion(), what);
X    (void) fprintf(fp, ", %s", ctime(&t));
X    dp = rp;
X    do {
X      if(w == 'd')
X       (void) fprintf(fp, "%s\n", DPNAM(dp));
X      else if(w == 'l') {
X       p = (dlist *) DNEXT(dp);
X       f = p && DLEVL(p) > DLEVL(rp);
X       if(dp == rp) {
X         (void) fprintf(fp, "R%s\n", DPNAM(rp));
X         (void) fprintf(fp, "%cH%s\n", f ? 'U' : 'H', DFNAM(rp));
X       }
X       else {
X         levl = DLEVL(rp) - 1;
X         info = DINFO(dp) >> levl;
X         (void) fprintf(fp, "%c", f ? 'V' : 'L');
X         for(i = 1; i < (DLEVL(dp) - levl - 1); i++)
X           (void) fprintf(fp, "I%c", info & (1 << (i-1)) ? 'V' : 'S');
X         (void) fprintf(fp, "I%cH%s\n", info & (1 << (i-1)) ? 'T' : 'L', DFNAM(dp));
X       }
X      }
X      else {
X       for(f = 0; f < DNFIL(dp); f++)
X         switch(w) {
X           case 'm':
X             if(umatch(dp, f, what))
X               goto WRITEFILE;
X             break;
X           case 't':
X             if( !ISTAG(dp, f))
X               break;
X             /*Fall thru*/
X           case 'f':
WRITEFILE:    (void) fprintf(fp, "%s\n", pathname(FFNAM(dp, f), DPNAM(dp)));
X             break;
X         }
X       }
X      dp = (dlist *) DNEXT(dp);
X    } while(dp && DLEVL(dp) > DLEVL(rp));
X    (void) fclose(fp);
X    return(list);
X  }
X  return(NULL);
X
X} /* writedlist() */
X
X/* Check directory list after file changes in directory name */
GLOBL VOID checkdlist(name)
X  register char *name;
X{
X  char fname[NAMELEN];
X  struct stat st;
X  register dlist *dp;
X  register char *sp;
X
X  if( !ISDIR(name, st)) {
X    (void) strcpy(fname, name);
X    name = fname;
X    if(sp = strrchr(fname, '/'))
X      *sp = '\0';
X    if((*statfun)(name, &st))   /* Bad stat: do nothing */
X      return;
X  }
X
X  for(dp = droot; dp; dp = (dlist *) DNEXT(dp)) {
X    if(EQU(DPNAM(dp), name) && CHKTIM(dp, st)) {
X      DFLAG(dp) = FL_CHG;
X      ++buildflag;
X      break;
X    }
X  }
X
X} /* checkdlist() */
X
X/* Scan directory tree for changes in filesystem */
GLOBL int scandlist(rp)
X  register dlist *rp;
X{
X  register dlist *dp;
X
X  dp = rp;
X  do {
X    if(keypressed() && hitakey(NULL) < RV_NUL)
X      return(RV_INT);
X    if(DFLAG(dp) == FL_FIL && changedlist(dp)) {
X      DFLAG(dp) = FL_CHG;
X      ++buildflag;
X    }
X  } while((dp = (dlist *) DNEXT(dp)) && DLEVL(dp) > DLEVL(rp));
X  return(RV_OK);
X
X} /* scandlist() */
X
X/* Check if status of a directory has changed */
GLOBL int changedlist(dp)
X  register dlist *dp;
X{
X  struct stat st;
X
X  return((*statfun)(DPNAM(dp), &st) == 0 && CHKTIM(dp, st));
X
X} /* changedlist() */
X
X/* Update directory list after changes in filesystem tree */
GLOBL int updatedlist()
X{
X  register dlist *dp;
X  register int c;
X
X  c = RV_OK;
X  for(dp = droot; dp; dp = (dlist *) DNEXT(dp)) {
X    if(DFLAG(dp) == FL_CHG) {
X      if((c = newflist(dp)) != RV_OK)
X       break;
X      if(dp == cdlist)
X       fileflag |= SF_TREE;
X    }
X  }
X  buildflag = 0;
X  return(c);
X
X} /* updatedlist() */
X
X/*
X *      BUILD UP DIRECTORY TREE
X */
X
X/* Build up directory tree and file lists recursively. Work is done hard. */
X/* For each directory starting with directory pn up to level last a       */
X/* dlist entry is allocated, the dlist record is filled with all needed   */
X/* directory data, the directory file list and the file name buffer, and  */
X/* then inserted into the directory tree list.                            */
GLOBL int buildread(pn, levl, last, intr)
X  register char *pn;
X  register int levl, last, intr;
X{
X  char name[NAMELEN];
X  static int dnum = 0;
X  struct stat dst, fst;
X  register DIR *fp;
X  register dlist *dp;
X  register flist *fvec;
X  register char *fbuf, *fbufp, *fn;
X  register char **dvec;
X  register int nfils, ndirs, flag, i, rv;
X  register unsigned bsiz;
X
X  /* Is pn a directory? */
X  if( !ISDIR(pn, dst))
X    return(RV_ERR);
X
X  /* Check for keyboard interrupt if interrupt is allowed */
X  if(intr && keypressed() && hitakey(NULL) < RV_NUL)
X    return(RV_INT);
X
X  /* Init variables */
X  ndirs = nfils = 0;
X  fvec  = FNULL;
X  fbuf  = NULL;
X  bsiz  = 0;
X  flag  = FL_NUL;
X
X  /* Read in directory and build dlist entry */
X  if(levl < last && (fp = opendir(pn))) {
X    /* Count files */
X    for(i = 0; readdname(fp); i++)
X      ;
X    rewinddir(fp);
X    (void) putecho("Reading %s (%d files)", pn, i);
X    flushout();
X    /* Align nfils and bsiz to avoid too often alloc and free */
X    i = alignnfils(i);
X    bsiz = alignbsiz((unsigned) dst.st_size, i);
X    if(i > 0) {
X      /* Get memory for file buffer, file list and directory array */
X      fbuf = (char *)  ualloc(bsiz, sizeof(char));
X      fvec = (flist *) ualloc((unsigned) i, sizeof(flist));
X      dvec = (char **) ualloc((unsigned) i, sizeof(char *));
X    }
X    else {
X      fbuf = NULL;
X      fvec = FNULL;
X    }
X    /* Read in directory, fill up file list and directory array */
X    for(nfils = 0, fbufp = fbuf; fn = readdname(fp); nfils++) {
X      FVFIL(fvec, nfils) = strcpy(fbufp, fn);
X      fbufp += strlen(fn) + 1;
X      (void) strcpy(name, pathname(fn, pn));
X      if((*statfun)(name, &fst)) {
X       FVTIM(fvec, nfils) = (time_t) 0;
X       FVSIZ(fvec, nfils) = (off_t)  0;
X      }
X      else {
X       FVTIM(fvec, nfils) = fst.st_mtime;
X       FVSIZ(fvec, nfils) = fst.st_size;
X       if(STFMT(&fst) == S_IFDIR && (hiddendirs || *fn != '.'))
X         dvec[ndirs++] = FVFIL(fvec, nfils);
X      }
X    }
X    closedir(fp);
X    /* Sort file list and directory array */
X    qsort((char *) fvec, (unsigned) nfils, sizeof(flist),  flistcmp);
X    qsort((char *) dvec, (unsigned) ndirs, sizeof(char *), dlistcmp);
X    flag = FL_FIL;
X  }
X
X  /* Insert dlist into tree list and set up dlist record */
X  dp = insertdlist(pn, nfils, fvec);
X  DFBUF(dp) = fbuf;
X  DFVEC(dp) = fvec;
X  DBSIZ(dp) = bsiz;
X  DCANC(dp) = CANCD(pn);
X  DMTIM(dp) = dst.st_mtime;
X  DCTIM(dp) = dst.st_ctime;
X  DFLAG(dp) = flag;
X  DSORT(dp) = sortbytime ? 1 : 0;
X  DLEVL(dp) = levl;
X  if(DLEVL(dp) > maxlevel)
X    maxlevel = DLEVL(dp);
X  DNDIR(dp) = ndirs;
X  DDNUM(dp) = dnum++;
X
X  if(nfils > 0) {
X    /* Build a dlist entry for each directory found in directory list */
X    for(i = 0; i < ndirs; i++) {
X      (void) strcpy(name, pathname(dvec[i], pn));
X      ++levl;
X      rv = buildread(name, levl, last, intr);
X      --levl;
X      if(intr && rv == RV_INT)
X       break;
X    }
X    /* Release directory array */
X    ufree((char *) dvec);
X  }
X
X  /* Set up tree info flag and return */
X  infodlist();
X  return(intr && rv == RV_INT ? RV_INT : RV_OK);
X
X} /* buildread() */
X
X/* Build up directory tree from tree list. File lists are built up later.  */
X/* For each directory starting with directory rn read in from tree list    */
X/* file lfn a dlist entry is allocated, the dlist record is filled with    */
X/* all needed directory data and inserted into the directory tree list.    */
X/* File list and file name buffer are initially unset and filled up later. */
GLOBL int buildlist(rn, cwd, lfn)
X  register char *rn, *cwd, *lfn;
X{
X  char name[NAMELEN];
X  struct stat st;
X  register FILE *fp;
X  register dlist *dp;
X  register char *pn;
X  register int dlen, dlev, dnum, i;
X
X  /* Init variables */
X  dlen = strlen(rn);
X  dlev = countlevl(rn);
X  dnum = 0;
X
X  /* Read in list file fn */
X  if(fp = fopen(lfn, "r")) {
X    (void) putecho("Building tree from list %s ... ", lfn);
X    flushout();
X    while(fgets(name, sizeof(name), fp)) {
X      if(VALID(name[0])) {
X       if(name[i = strlen(name) - 1] == '\n')
X         name[i] = '\0';
X       pn = pathname(name, cwd);
X       /* Skip bad entries in tree list */
X       if(strncmp(rn, pn, dlen) || stat(pn, &st) || STFMT(&st) != S_IFDIR) {
X         writeflag = 1;
X         continue;
X       }
X       /* Skip hidden directories if flag is not set */
X       if( !hiddendirs && *(basename(pn)) == '.')
X         continue;
X       /* Insert into tree list and file up record with directory   */
X       /* data. File list and file name buffer are initially unset. */
X       dp = insertdlist(pn, 0, FNULL);
X       DFBUF(dp) = NULL;
X       DFVEC(dp) = FNULL;
X       DBSIZ(dp) = 0;
X       DCANC(dp) = CANCD(pn);
X       DMTIM(dp) = st.st_mtime;
X       DCTIM(dp) = st.st_ctime;
X       DFLAG(dp) = FL_NUL;
X       DSORT(dp) = sortbytime ? 1 : 0;
X       DLEVL(dp) = countlevl(pn) - dlev + 1;
X       if(DLEVL(dp) > maxlevel)
X         maxlevel = DLEVL(dp);
X       DNDIR(dp) = 0;
X       DDNUM(dp) = dnum++;
X      }
X    }
X    (void) fclose(fp);
X  }
X
X  /* Set up tree info flag and return */
X  if(dnum) {
X    infodlist();
X    return(RV_OK);
X  }
X  return(RV_NUL);
X
X} /* buildlist() */
X
END_OF_FILE
if test 22046 -ne `wc -c <'src/list.c'`; then
    echo shar: \"'src/list.c'\" unpacked with wrong size!
fi
# end of 'src/list.c'
fi
if test -f 'src/vars.c' -a "${1}" != "-c" ; then
  echo shar: Will not clobber existing file \"'src/vars.c'\"
else
echo shar: Extracting \"'src/vars.c'\" \(22215 characters\)
sed "s/^X//" >'src/vars.c' <<'END_OF_FILE'
X/*
X *      VARS.C
X *      UTREE variable handling routines.
X *      3.01-um klin, Sun May  5 11:05:05 1991
X *      3.02-um klin, Fri Nov  1 10:46:14 1991, Option -u changed to -n
X *              klin, Sun Nov 24 15:26:19 1991, Video attributes changed
X *      3.03-um klin, Tue Feb 11 14:18:50 1992, Generic lists for variables
X *                                              and file type commands
X *              klin, Sat Feb 15 14:44:52 1992, Video handling and partinioning of
X *                                              directory and file windows changed
X *              klin, Sun Feb 23 18:45:19 1992, Keybindings and variable
X *                                              AUTOSAVE added
X *              klin, Fri Mar  6 09:34:43 1992, Release undefined commands
X *            a klin, Sun Mar 15 19:08:25 1992, Accept command without comment
X *            b klin, Thu Mar 19 10:23:54 1992, Don't free empty strings
X *
X *      Copyright (c) 1991/92 by Peter Klingebiel & UNIX Magazin Muenchen.
X *      For copying and distribution information see the file COPYRIGHT.
X */
X#ifndef lint
static char sccsid[] = "@(#) utree 3.03b-um (klin) Mar 19 1992 vars.c";
X#endif  /* !lint */
X
X#include "defs.h"
X
X/* ---- Local variables and definitions ------------------------------- */
X
X/* Format for user command menulines on tree and file screen            */
X#define UMENUFORM \
X" 1:      2:      3:      4:      5:      6:      7:      8:      9:     "
X#define FIRST   3
X#define OFFSET  8
X#define TITLE   5
X
X#define XUNDEF  ((xlist *) -1)  /* Undefined or released xlist          */
X
LOCAL int vcchg = 0;            /* Variables/commands changed           */
LOCAL char *novar = "";         /* Empty string variable                */
X
GLOBL VOID checkindent();
GLOBL VOID checklines();
LOCAL VOID setsortflag();
X
X/* ---- External variables and functions ------------------------------ */
X
XEXTRN char *getversion();
XEXTRN char *strclean();
X
X/* ---- Functions and procedures -------------------------------------- */
X
X/*
X *      INTERNAL USED ROUTINES
X */
X
X/* Show all variables */
LOCAL int showallvars()
X{
X  register vlist *vp;
X  register int l, c;
X
X  l = firstline;
X  c = RV_OK;
X  clearwindow(firstline, lastline);
X  for(vp = VARTAB(0), l = firstline; vp; vp = (vlist *) VNEXT(vp)) {
X    (void) putfxy(0, l, 0, "%s %12s=", VSCUT(vp), VNAME(vp));
X    if(VTYPE(vp) == VT_B)
X      c = putfxy(16, l, 0, "%s", VVALE(vp) == VB_ON ? "ON" : "OFF");
X    else
X      c = putfxy(16, l, 0, "%s", VVALE(vp) ? VVALE(vp) : "");
X    if(VCOMM(vp))
X      (void) putfxy(c > columns/2 ? c : columns/2, l, 0, "#%s", VCOMM(vp));
X    if(++l > lastline && VNEXT(vp)) {
X      puthelp("VARIABLES (CR:continue  Q:quit  ELSE:set/unset)");
X      c = hitakey("More variables ?", echoline, DA_NONE);
X      if( !(c == ' ' || c == '\n'))
X       break;
X      clearwindow(firstline, lastline);
X      l = firstline;
X    }
X  }
X  treeflag = fileflag = SF_FULL;
X  return(c);
X
X} /* showallvars() */
X
X/* Display file type dependent commands */
LOCAL int showallcmds()
X{
X  register xlist *xp;
X  register int l, c;
X
X  l = firstline;
X  c = RV_OK;
X  clearwindow(firstline, lastline);
X  for(xp = xroot, l = firstline; xp; xp = (xlist *) XNEXT(xp)) {
X    c = putfxy(0, l, 0, "%s:%s", XTYPE(xp), XCOMD(xp));
X    if(XCOMM(xp))
X      (void) putfxy(c > (columns/2) ? c+1 : columns/2, l, 0, "#%s", XCOMM(xp));
X    if(++l > lastline && XNEXT(xp)) {
X      puthelp("FILETYPE COMMANDS (CR:continue  Q:quit  ELSE:set/unset)");
X      c = hitakey("More filetype commands ?", echoline, DA_NONE);
X      if( !(c == ' ' || c == '\n'))
X       break;
X      clearwindow(firstline, lastline);
X      l = firstline;
X    }
X  }
X  treeflag = fileflag = SF_FULL;
X  return(c);
X
X} /* showallcmds() */
X
X/* Set sort criteria flag for file lists */
LOCAL VOID setsortflag(f)
X  register int f;
X{
X  register dlist *dp;
X
X  sortbytime = f ? 0 : 1;
X  for(dp = droot; dp; dp = (dlist *) DNEXT(dp))
X    (void) sortlist(dp, sortbytime);
X
X} /* setsortflag() */
X
X/* Set tree indention variable */
LOCAL int setindent(i)
X  register int i;
X{
X  if(i < MININD || i > MAXIND)          /* Out of range */
X    return(-1);
X  maxindent = indent = i;               /* Set indention variables */
X  checkindent();
X  return(0);
X
X} /* setindent() */
X
X/* Set video mode variable */
GLOBL int setvideomode(i)
X  register int i;
X{
X  if(i  < VMODE0 || i > VMODE2)         /* Out of range */
X    return(-1);
X  else if(glitchcap && i > VMODE1)      /* Respect glitches */
X    i = VMODE1;
X  videomode = i;                        /* Set video mode variables */
X  *VARVAL(V_VM) = videomode + '0';
X  return(0);
X
X} /* setvideomode() */
X
X/* Set number of file lines on tree screen */
LOCAL int setfilelines(n)
X  register int n;
X{
X  if(n < MINFIL || n > MAXFIL)          /* Out of range */
X    return(-1);
X  maxnflines = n;
X  checklines(1);
X  return(0);
X
X} /* setfilelines() */
X
X/*
X *      USER COMMAND ROUTINES
X */
X
X/* Build command line s from user command v with value p */
GLOBL int userformat(s, p, v, w)
X  register char *s, *p, *w;
X  register int v;
X{
X  char buf[INPLEN];
X  register char *fp, *pp;
X  register int c, n;
X
X  pp = p;
X  n  = 0;
X  while(*p) {                   /* Scan command format */
X    if(*p == '\\') {
X      *s++ = *++p;
X      if(*p)
X       ++p;
X    }
X    else if(*p == '%') {
X      switch(*++p) {
X       case 's':               /* Request for parameter */
X       case 'S':
X         puthelp("%s: Parameter %d for %s", w, ++n, pp);
X         c = putecho("Give Parameter %d:", n);
X         if((c = getline(buf, sizeof(buf), c, 0, NULL, GNULL, 0)) < RV_NUL)
X           return(c);
X         fp = buf;
X         goto DOCOPY;
X       case 'B':               /* Basename of directory or file */
X       case 'b':
X         if(v > V_FC0) {
X           if(CNFIL == 0)
X             return(RV_NUL);
X           (void) strcpy(buf, FFNAM(cdlist, CFCUR));
X         }
X         else
X           (void) strcpy(buf, CFNAM);
X         if(fp = strrchr(buf, '.'))
X           *fp = '\0';
X         fp = buf;
X         goto DOCOPY;
X       case 'F':               /* Filename of directory or file */
X       case 'f':
X         if(v > V_FC0) {
X           if(CNFIL == 0)
X             return(RV_NUL);
X           fp = FFNAM(cdlist, CFCUR);
X         }
X         else
X           fp = CFNAM;
X         goto DOCOPY;
X       case 'R':               /* Root directory */
X       case 'r':
X         fp = rootdir;
X         goto DOCOPY;
X       case 'H':               /* Home directory */
X       case 'h':
X         fp = home;
X         goto DOCOPY;
X       case 'P':               /* Full pathname of directory or file */
X       case 'p':
X         if(v > V_FC0) {
X           if(CNFIL == 0)
X             return(RV_NUL);
X           fp = CPNAM;
X           while(*fp)
X             *s++ = *fp++;
X           *s++ = '/';
X           fp = FFNAM(cdlist, CFCUR);
X           goto DOCOPY;
X         }
X         /* Directory: fall thru */
X       case 'D':               /* Current directory name */
X       case 'd':
X         fp = CPNAM;
DOCOPY:   while(*fp)
X           *s++ = *fp++;
X         break;
X       case '%':               /* As it is */
X         *s++ = '%';
X         break;
X       default:
X         return(RV_NUL);       /* Bad format */
X      }
X      ++p;
X    }
X    else
X      *s++ = *p++;
X  }
X
X  *s = '\0';                    /* Terminate command line */
X  return(RV_OK);
X
X} /* userformat() */
X
X/* Execute an user defined command v */
GLOBL int usercommand(v)
X  register int v;
X{
X  char buf[EXECLEN];
X  register int c;
X
X  /* Check if usercommand is set */
X  if( !VARSET(v))
X    return(errequest("User command", "Not defined"));
X  /* Build command line */
X  else {
X    c = userformat(buf, VARVAL(v), v, VARNAM(v));
X    if(c == RV_NUL)
X      return(errequest("User command", "Bad format"));
X    else if(c < 0)
X      return(c);
X  }
X
X  puthelp("USER COMMAND: %s", buf);
X  c = callsystem(buf, 1, 0);
X  checkdlist(CPNAM);
X
X  if(c != RV_OK)
X    return(errequest("User command", "Error in executing"));
X  return(hitakey("Return from user command (Hit a key)", lines-1, DA_REVERSE));
X
X} /* usercommand() */
X
X/*
X *      FILE TYPE COMMAND ROUTINES
X */
X
X/* Set file type command */
GLOBL xlist *setcommand(type, f)
X  register char *type;
X  register int f;
X{
X  register xlist *xp, *pp, *p;
X  register char *comd, *comm;
X
X  /* Search for filetype - command separator ':' */
X  if((comd = strchr(type, ':')) == NULL || comd == type)
X    return(XNULL);
X  else
X    *comd++ = '\0';
X
X  /* Get additional comment lead in by '#' */
X  if(comm = strchr(comd, '#')) {
X    *comm++ = '\0';
X    comm = strclean(comm);
X  }
X  comd = strclean(comd);
X
X  /* Search for file type to set in command list */
X  for(xp = xroot; xp; xp = (xlist *) XNEXT(xp))
X    if(EQU(type, XTYPE(xp)))
X      break;
X
X  /* Replace or delete an existing file type command */
X  if(xp) {
X    ufree(XCOMD(xp));
X    ufree(XCOMM(xp));
X    if(comd == NULL || *comd == '\0') {
X      if(xroot && xp == xroot) {
X       if(xroot = (xlist *) XNEXT(xp))
X         XPREV(xroot) = GNULL;
X       else
X         xroot = XNULL;
X      }
X      else {
X       if(p = (xlist *) XPREV(xp))
X         XNEXT(p) = XNEXT(xp);
X       if(p = (xlist *) XNEXT(xp))
X         XPREV(p) = XPREV(xp);
X      }
X      ufree(XTYPE(xp));
X      ufree(xp);
X      xp = XUNDEF;
X    }
X  }
X  /* Ignore invalid definition */
X  else if(comd == NULL || *comd == '\0')
X    return(XUNDEF);
X  /* Create and insert a new entry in file type command list */
X  else if(xp = (xlist *) ualloc(1, sizeof(xlist))) {
X    XTYPE(xp) = strsav(type);
X    if(xroot && CMP(type, XTYPE(xroot)) < 0) {
X      for(pp = xroot; XNEXT(pp); pp = (xlist *) XNEXT(pp)) {
X       p = (xlist *) XNEXT(pp);
X       if(CMP(type, XTYPE(pp)) > 0)
X         break;
X      }
X      XPREV(xp) = (glist *) pp;
X      XNEXT(xp) = XNEXT(pp);
X      if(p = (xlist *) XNEXT(pp))
X       XPREV(p) = (glist *) xp;
X      XNEXT(pp) = (glist *) xp;
X    }
X    else {
X      if(xroot)
X       XPREV(xroot) = (glist *) xp;
X      XPREV(xp) = GNULL;
X      XNEXT(xp) = (glist *) xroot;
X      xroot = xp;
X    }
X  }
X
X  /* Insert command and comment and return */
X  if(comd && *comd) {
X    XCOMD(xp) = strsav(comd);
X    XCOMM(xp) = comm && *comm ? strsav(comm) : NULL;
X  }
X  if(xp) {
X    if(f == VC_CHG)
X      vcchg = 1;
X    return(xp);
X  }
X  else
X    return(XNULL);
X
X} /* setcommand() */
X
X/* Show and set/unset filetype commands */
GLOBL int commands()
X{
X  char buf[3*INPLEN], typ[INPLEN], cmd[INPLEN], cmt[INPLEN];
X  register xlist *xp = XUNDEF;
X  register int c, f;
X
X  who = "SET COMMAND";
X  f = 1;
X  /* Filetype command loop */
X  while(1) {
X    cmd[0] = cmt[0] = '\0';
X    if(f && ((c = showallcmds()) < RV_NUL || c == 'q'))
X      break;
X    f = 0;
X    if(xp == XUNDEF || xp == XNULL)
X      xp = xroot;
X    puthelp("%s: Give filetype or type:command (CR:quit)", who);
X    c = putecho("Set command:");
X    if((c = getline(typ, sizeof(typ), c, 'd', NULL, xp ? XLIST(xp) : GNULL, 1)) != RV_OK)
X      break;
X    if(strchr(typ, ':'))
X      (void) strcpy(buf, typ);
X    else {
X      puthelp("%s: Give command for %s (CR:unset)", who, typ);
X      c = putecho("Command for %s:", typ);
X      for(xp = xroot; xp; xp = (xlist *) XNEXT(xp))
X       if(EQU(typ, XTYPE(xp)))
X         break;
X      if((c = getline(cmd, sizeof(cmd), c, 'd', xp ? XCOMD(xp) : NULL, GNULL, 1)) < RV_NUL)
X       break;
X      if(c == RV_NUL)
X       (void) sprintf(buf, "%s:", typ);
X      else if(strchr(cmd, '#'))
X       (void) sprintf(buf, "%s:%s", typ, cmd);
X      else {
X       puthelp("%s: Give comment for %s", who, typ);
X       c = putecho("Comment for %s:", typ);
X       if((c = getline(cmt, sizeof(cmt), c, 'd', xp ? XCOMM(xp) : NULL, GNULL, 1)) < RV_NUL)
X         break;
X       else if(c == RV_OK)
X         (void) sprintf(buf, "%s:%s#%s", typ, cmd, cmt);
X     else
X       (void) sprintf(buf, "%s:%s", typ, cmd);
X      }
X    }
X    if((xp = setcommand(buf, VC_CHG)) == XNULL) {
X      puthelp("%s %s", who, hitkey);
X      if((c = errequest(buf, "Error in setting")) < RV_NUL)
X       break;
X    }
X    else
X      f = 1;
X  }
X  return(c);
X
X} /* commands() */
X
X/*
X *      VARIABLE ROUTINES
X */
X
X/* Init variables */
GLOBL VOID initvariables()
X{
X  char buf[NAMELEN];
X  register vlist *vp;
X  register FILE *fp;
X  register char *ep;
X  register int i;
X
X  /* Init user commands menu lines for tree and file screen */
X  (void) strcpy(utreemenu, UMENUFORM);
X  (void) strcpy(ufilemenu, utreemenu);
X
X  /* First: Get and set variables from environment */
X  if(ep = getenv("SHELL"))
X    VARDEF(V_SH) = ep;
X  if(ep = getenv("EDITOR"))
X    VARDEF(V_ED) = ep;
X  if(ep = getenv("PAGER"))
X    VARDEF(V_PG) = ep;
X
X  /* Second: Initialize and link variables table */
X  for(i = 0; VARNAM(i); i++) {
X    if(VARDEF(i) == NULL)
X      VARDEF(i) = novar;
X    VARVAL(i) = VARDEF(i);
X  }
X  VARNXT(0) = VARLST(1);
X  for(i = 1; VARNAM(i+1); i++) {
X    VARNXT(i) = VARLST(i+1);
X    VARPRV(i) = VARLST(i-1);
X  }
X  VARPRV(i) = VARLST(i-1);
X
X#ifdef  UTSTART
X  /* Third: Get and set variables from startup file */
X  if(startup(buf, UTSTART) && (fp = fopen(buf, "r"))) {
X    while(fgets(buf, sizeof(buf), fp))
X      if(VALID(buf[0])) {
X       i = strlen(buf) - 1;
X       if(i > 0 && buf[i] == '\n')
X         buf[i] = '\0';
X       if(strchr(buf, '='))
X         (void) setvariable(buf, VC_SET);
X       else if(strchr(buf, ':'))
X         (void) setcommand(buf, VC_SET);
X      }
X    (void) fclose(fp);
X  }
X#endif  /* UTSTART */
X
X  /* Last: Check environment variable UTREE */
X  if(ep = getenv("UTREE")) {
X    for(i = 0; ep[i]; i++)
X      switch(ep[i]) {
X       default:                /* Do nothing */
X         break;
X       case 'b':               /* No bell */
X         (void) setvariable("BL=", VC_SET);
X         break;
X       case 'c':               /* No clock */
X         (void) setvariable("CL=", VC_SET);
X         break;
X       case 'g':               /* No graphic chars */
X         (void) setvariable("GC=", VC_SET);
X         break;
X       case 'i':               /* Tree indention */
X          if(isdigit(ep[i+1])) {
X            ++i;
X            (void) sprintf(buf, "TI=%c", ep[i]);
X            (void) setvariable(buf, VC_SET);
X          }
X          break;
X       case 'n':               /* No tree scan for changes */
X         (void) setvariable("ST=", VC_SET);
X         break;
X       case 'o':               /* Omit saving definition changes */
X         (void) setvariable("AS=", VC_SET);
X         break;
X       case 'p':               /* File lines on tree screen */
X          if(isdigit(ep[i+1])) {
X            ++i;
X            (void) sprintf(buf, "FL=%c", ep[i]);
X            (void) setvariable(buf, VC_SET);
X          }
X          break;
X       case 's':               /* No hardware scrolling */
X         (void) setvariable("TS=", VC_SET);
X         break;
X       case 'v':               /* Set video mode */
X          if(isdigit(ep[i+1])) {
X            ++i;
X            (void) sprintf(buf, "VM=%c", ep[i]);
X            (void) setvariable(buf, VC_SET);
X          }
X          break;
X       case 'w':               /* No warning about unreadable dirs */
X         (void) setvariable("WD=", VC_SET);
X         break;
X      }
X  }
X
X} /* initvariables() */
X
X/* Save current settings after changes */
GLOBL VOID savevariables()
X{
X#ifdef UTSTART
X  char buf[NAMELEN];
X  register xlist *xp;
X  register vlist *vp;
X  register FILE *fp;
X  time_t t;
X
X  if(VARVAL(V_AS) && vcchg) {
X   (void) sprintf(buf, ".%s", UTSTART);
X   (void) strcpy(buf, pathname(buf, home));
X    if(fp = fopen(buf, "w")) {
X      t = time((time_t *) 0);
X      (void) fprintf(fp, "# %s: ~/.%s, %s", getversion(), UTSTART, ctime(&t));
X      /* Save variables */
X      (void) fprintf(fp, "# Variables\n");
X      for(vp = VARTAB(0); vp; vp = (vlist *) VNEXT(vp)) {
X       (void) fprintf(fp, "%s=", VNAME(vp));
X       if(VVALE(vp))
X         (void) fprintf(fp, "%s", VTYPE(vp) == VT_B ? "ON" : VVALE(vp));
X       if(VCOMM(vp))
X         (void) fprintf(fp, "\t#%s\n", VCOMM(vp));
X       else
X         (void) fprintf(fp, "\n");
X      }
X      /* Save command settings */
X      (void) fprintf(fp, "# Commands\n");
X      for(xp = xroot; xp; xp = (xlist *) XNEXT(xp)) {
X       (void) fprintf(fp, "%s:%s", XTYPE(xp), XCOMD(xp) ? XCOMD(xp) : "");
X       if(XCOMM(xp))
X         (void) fprintf(fp, "\t#%s\n", XCOMM(xp));
X       else
X         (void) fprintf(fp, "\n");
X      }
X      (void) fclose(fp);
X    }
X  }
X#endif  /* UTSTART */
X
X} /* savevariables() */
X
X/* Check tree indention */
GLOBL VOID checkindent()
X{
X  register int i;
X
X  if(maxlevel > 0)                      /* Calculate max possible indention */
X    i = (columns - FNAMSZ - 6) / maxlevel;
X  else
X    i = indent;
X  if(i < MININD) i = MININD;
X  if(i > MAXIND) i = MAXIND;
X  if(maxindent && i > maxindent)        /* Check and set indention */
X    i = maxindent;
X  indent = i;
X  *VARVAL(V_TI) = indent + '0';         /* Set indention variable value */
X  treeflag = SF_TREE;
X
X} /* checkindent() */
X
X/* Calculate max possible number of file lines on tree screen */
GLOBL int calculatelines()
X{
X  register int l;
X
X  if((l = (lines-3) / 2) > MAXFIL)
X    l = MAXFIL;
X  return(l);
X
X} /* calculatelines() */
X
X/* Check line partitioning on tree screen */
GLOBL VOID checklines(f)
X  register int f;
X{
X  register int m, nf;
X
X  if(f) {                               /* Calculate new line values */
X    nf = nflines;
X    if(maxnflines < MINFIL)
X      nflines = MINFIL;
X    else {
X      m = calculatelines();
X      nflines = maxnflines > m ? m : maxnflines;
X    }
X    firstfline = lastfline - nflines + 1;
X    lastdline  = firstfline - 2;
X    ndlines    = lastdline - firstdline;
X    if(nf != nflines)                   /* Check directory window */
X      calculatetree(nf-nflines);
X    treeflag = SF_TREE;
X  }
X  else                                  /* Update after resizing */
X    maxnflines = nflines;
X  *VARVAL(V_FL) = maxnflines + '0';     /* Set number of file lines */
X
X} /* checklines() */
X
X/* Set/unset or reset user defined variables */
GLOBL int setvariable(line, f)
X  register char *line;
X  register int f;
X{
X  register vlist *vp;
X  register char *value, *comm, *dp;
X  register int n, i, j;
X
X  /* Search for variable - value separator '=' */
X  if(f != VC_TST) {
X    if(value = strchr(line, '='))
X      *value++ = '\0';
X    else
X      return(-1);
X  }
X  line = strclean(line);
X  strupper(line);
X
X  /* Search for variable to set in variable list */
X  for(vp = VARTAB(0); vp; vp = (vlist *) VNEXT(vp))
X    if(*line == *VNAME(vp) && (EQU(line, VSCUT(vp)) || EQU(line, VNAME(vp))))
X      break;
X  if(vp == VNULL)
X    return(-1);
X  else if(f == VC_TST)
X    return(VNUMB(vp));
X
X  /* Ignore additional comment */
X  if(comm = strchr(value, '#')) {
X    *comm++ = '\0';
X    comm = strclean(comm);
X  }
X  value = strclean(value);
X
X  /* Set or unset variable */
X  n = VNUMB(vp);
X  switch(VTYPE(vp)) {
X    case VT_B:                  /* Booleans */
X      VVALE(vp) = *value ? VB_ON : VB_OFF;
X      if(n == V_GC)
X       initgraphics(VVALE(vp));
X      else if(n == V_LS)
X       setsortflag(VVALE(vp));
X      break;
X    case VT_N:                  /* Numbers */
X      if(n == V_TI && setindent(atoi(value)))
X       n = -1;
X      else if(n == V_VM && setvideomode(atoi(value)))
X       n = -1;
X      else if(n == V_FL && setfilelines(atoi(value)))
X       n = -1;
X      else if(n == V_HS && (f != VC_SET || sethistorysize(atoi(value))))
X       n = -1;
X      break;
X    case VT_S:                  /* General strings */
X      if(VVALE(vp) && VVALE(vp) != VDFLT(vp))
X       ufree(VVALE(vp));
X      if(*value && *value != '#' && (dp = strsav(value)))
X       VVALE(vp) = dp;
X      else if(VDFLT(vp))
X       VVALE(vp) = VDFLT(vp);
X      else
X       VVALE(vp) = NULL;
X      break;
X    case VT_U:                  /* Command strings */
X      if(VVALE(vp) && VVALE(vp) != VDFLT(vp))
X       ufree(VVALE(vp));
X      if(VCOMM(vp))
X       ufree(VCOMM(vp));
X      VVALE(vp) = VCOMM(vp) = NULL;
X      dp = NULL;
X      if(*value) {
X       if(dp = strsav(value))
X         VVALE(vp) = dp;
X       if(comm && *comm)
X         VCOMM(vp) = strsav(comm);
X      }
X      /* Update user command menulines if needed */
X      if(n > V_FC0)
X       for(i = (n - V_FC1) * OFFSET + FIRST, j = 0; j < TITLE; i++, j++)
X         ufilemenu[i] = comm && *comm ? *comm++ : ' ';
X      else
X       for(i = (n - V_TC1) * OFFSET + FIRST, j = 0; j < TITLE; i++, j++)
X         utreemenu[i] = comm && *comm ? *comm++ : ' ';
X      break;
X    case VT_O:                  /* User defined strings: not yet! */
X    default:                    /* ??? */
X      n = -1;
X  }
X
X  if(n >= 0 && f == VC_CHG)
X    vcchg = 1;
X  return(n);
X
X} /* setvariable() */
X
X/* Show and set/unset common and user defined variables */
GLOBL int variables()
X{
X  char buf[3*INPLEN], var[INPLEN], def[INPLEN], cmt[INPLEN];
X  register char *dp;
X  register int f, c, n = -1;
X
X  who = "SET VARIABLE";
X  /* Variable loop */
X  f = 1;
X  while(1) {
X    if(n < 0)
X      n = 0;
X    if(f && ((c = showallvars()) < RV_NUL || c == 'q'))
X      return(c);
X    f = 0;
X    puthelp("%s: Give variable or variable=value (CR:quit)", who);
X    c = putecho("Set variable:");
X    if((c = getline(var, sizeof(var), c, 'v', NULL, VARLST(n), 1)) != RV_OK)
X      break;
X    if(strchr(var, '='))
X      (void) strcpy(buf, var);
X    else {
X      if((n = setvariable(var, VC_TST)) < 0) {
X       if((c = errequest(var, "Unknown")) < RV_NUL)
X         break;
X       else
X         continue;
X      }
X      puthelp("%s: Give definition for %s (CR:unset)", who, var);
X      c = putecho("Set %s to:", var);
X      if(VARTYP(n) == VT_B)
X       dp = VARSET(n) ? "ON" : "";
X      else
X       dp = VARVAL(n);
X      if((c = getline(def, sizeof(def), c, 'v', dp, GNULL, 0)) < RV_NUL)
X       break;
X      if(VARTYP(n) != VT_U || strchr(def, '#'))
X       (void) sprintf(buf, "%s=%s", var, def);
X      else {
X       puthelp("%s: Give comment for user command %s", who, VARNAM(n));
X       c = putecho("Comment for %s:", VARNAM(n));
X       if((c = getline(cmt, sizeof(cmt), c, 'v', VARCOM(n), GNULL, 0)) < RV_NUL)
X         break;
X       (void) sprintf(buf, "%s=%s#%s", var, def, cmt);
X      }
X    }
X    if(setvariable(buf, VC_CHG) < 0) {
X      puthelp("%s %s", who, hitkey);
X      if((c = errequest(buf, "Error in setting")) < RV_NUL)
X       break;
X    }
X    else
X      f = 1;
X  }
X
X  treeflag = fileflag = SF_FULL;
X  return(c);
X
X} /* variables() */
X
END_OF_FILE
if test 22215 -ne `wc -c <'src/vars.c'`; then
    echo shar: \"'src/vars.c'\" unpacked with wrong size!
fi
# end of 'src/vars.c'
fi
echo shar: End of archive 5 \(of 8\).
cp /dev/null ark5isdone
MISSING=""
for I in 1 2 3 4 5 6 7 8 ; do
    if test ! -f ark${I}isdone ; then
    MISSING="${MISSING} ${I}"
    fi
done
if test "${MISSING}" = "" ; then
    echo You have unpacked all 8 archives.
    rm -f ark[1-9]isdone
else
    echo You still need to unpack the following archives:
    echo "        " ${MISSING}
fi
##  End of shell archive.
exit 0