(Copyright): Add '(C)' as per coding guidelines.
[bpt/emacs.git] / lib-src / rcs2log
index f1bd89d..d1da3a0 100755 (executable)
@@ -18,6 +18,7 @@ Options:
   -h HOSTNAME  Use HOSTNAME in change log entries (default current host).
   -i INDENT  Indent change log lines by INDENT spaces (default 8).
   -l LENGTH  Try to limit log lines to LENGTH characters (default 79).
+  -L FILE  Use rlog-format FILE for source of logs.
   -R  If no FILEs are given and RCS is used, recurse through working directory.
   -r OPTION  Pass OPTION to subsidiary log command.
   -t TABWIDTH  Tab stops are every TABWIDTH characters (default 8).
@@ -28,9 +29,9 @@ Options:
 
 Report bugs to <bug-gnu-emacs@gnu.org>.'
 
-Id='$Id: rcs2log,v 1.46 2001/01/03 12:04:06 gerd Exp $'
+Id='$Id: rcs2log,v 1.48 2001/09/05 23:07:46 eggert Exp $'
 
-# Copyright 1992, 93, 94, 95, 96, 97, 1998, 2001
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2001
 #  Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
@@ -48,13 +49,29 @@ Id='$Id: rcs2log,v 1.46 2001/01/03 12:04:06 gerd Exp $'
 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 # Boston, MA 02111-1307, USA.
 
-Copyright='Copyright 1998 Free Software Foundation, Inc.
+Copyright='Copyright (C) 2001 Free Software Foundation, Inc.
 This program comes with NO WARRANTY, to the extent permitted by law.
 You may redistribute copies of this program
 under the terms of the GNU General Public License.
 For more information about these matters, see the files named COPYING.
 Author: Paul Eggert <eggert@twinsun.com>'
 
+# Use the traditional C locale.
+LANG=C
+LANGUAGE=C
+LC_ALL=C
+LC_COLLATE=C
+LC_CTYPE=C
+LC_MESSAGES=C
+LC_NUMERIC=C
+LC_TIME=C
+export LANG LANGUAGE LC_ALL LC_COLLATE LC_CTYPE LC_MESSAGES LC_NUMERIC LC_TIME
+
+# These variables each contain a single ASCII character.
+# Unfortunately, there's no portable way of writing these characters
+# in older Unix implementations, other than putting them directly into
+# this text file.
+SOH='\ 1' # SOH, octal code 001
 tab='  '
 nl='
 '
@@ -75,6 +92,7 @@ logTZ= # time zone for log dates (if empty, use local time)
 recursive= # t if we want recursive rlog
 revision= # t if we want revision numbers
 rlog_options= # options to pass to rlog
+rlogfile= # log file to read from
 tabwidth=8 # width of horizontal tab
 
 while :
@@ -84,17 +102,16 @@ do
        -i)     indent=${2?}; shift;;
        -h)     hostname=${2?}; shift;;
        -l)     length=${2?}; shift;;
+       -L)     rlogfile=${2?}; shift;;
        -[nu])  # -n is obsolescent; it is replaced by -u.
                case $1 in
                -n)     case ${2?}${3?}${4?} in
                        *"$tab"* | *"$nl"*)
                                echo >&2 "$0: -n '$2' '$3' '$4': tabs, newlines not allowed"
-                               exit 1
-                       esac
-                       case $loginFullnameMailaddrs in
-                       '') loginFullnameMailaddrs=$2$tab$3$tab$4;;
-                       ?*) loginFullnameMailaddrs=$loginFullnameMailaddrs$nl$2$tab$3$tab$4
+                               exit 1;;
                        esac
+                       login=$2
+                       lfm=$2$tab$3$tab$4
                        shift; shift; shift;;
                -u)
                        # If $2 is not tab-separated, use colon for separator.
@@ -105,33 +122,39 @@ do
                        *"$tab"*)
                                t=$tab;;
                        *)
-                               t=:
+                               t=':';;
                        esac
                        case $2 in
                        *"$t"*"$t"*"$t"*)
                                echo >&2 "$0: -u '$2': too many fields"
                                exit 1;;
                        *"$t"*"$t"*)
-                               ;;
+                               uf="[^$t]*$t" # An unselected field, followed by a separator.
+                               sf="\\([^$t]*\\)" # The selected field.
+                               login=`expr "X$2" : "X$sf"`
+                               lfm="$login$tab"`
+                                       expr "X$2" : "$uf$sf"
+                                 `"$tab"`
+                                       expr "X$2" : "$uf$uf$sf"
+                               `;;
                        *)
                                echo >&2 "$0: -u '$2': not enough fields"
-                               exit 1
-                       esac
-                       case $loginFullnameMailaddrs in
-                       '') loginFullnameMailaddrs=$2;;
-                       ?*) loginFullnameMailaddrs=$loginFullnameMailaddrs$nl$2
+                               exit 1;;
                        esac
-                       shift
+                       shift;;
                esac
                case $logins in
                '') logins=$login;;
-               ?*) logins=$logins$nl$login
+               ?*) logins=$logins$nl$login;;
                esac
-               ;;
+               case $loginFullnameMailaddrs in
+               '') loginFullnameMailaddrs=$lfm;;
+               ?*) loginFullnameMailaddrs=$loginFullnameMailaddrs$nl$lfm;;
+               esac;;
        -r)
                case $rlog_options in
                '') rlog_options=${2?};;
-               ?*) rlog_options=$rlog_options$nl${2?}
+               ?*) rlog_options=$rlog_options$nl${2?};;
                esac
                shift;;
        -R)     recursive=t;;
@@ -145,9 +168,9 @@ do
        -*)     echo >&2 "Usage: $0 [OPTION]... [FILE ...]$nl$Help"
                case $1 in
                --help) exit 0;;
-               *) exit 1
+               *) exit 1;;
                esac;;
-       *)      break
+       *)      break;;
        esac
        shift
 done
@@ -159,159 +182,176 @@ month_data='
        m[9]="Oct"; m[10]="Nov"; m[11]="Dec"
 '
 
+logdir=$TMPDIR/rcs2log$$
+llogout=$logdir/l
+trap exit 1 2 13 15
+trap "rm -fr $logdir 2>/dev/null" 0
+(umask 077 && exec mkdir $logdir) || exit
 
-# Put rlog output into $rlogout.
-
-# If no rlog options are given,
-# log the revisions checked in since the first ChangeLog entry.
-# Since ChangeLog is only by date, some of these revisions may be duplicates of
-# what's already in ChangeLog; it's the user's responsibility to remove them.
-case $rlog_options in
+# If no rlog-format log file is given, generate one into $rlogfile.
+case $rlogfile in
 '')
+       rlogfile=$logdir/r
+
+       # If no rlog options are given,
+       # log the revisions checked in since the first ChangeLog entry.
+       # Since ChangeLog is only by date, some of these revisions may be duplicates of
+       # what's already in ChangeLog; it's the user's responsibility to remove them.
+       case $rlog_options in
+       '')
+               if test -s "$changelog"
+               then
+                       e='
+                               /^[0-9]+-[0-9][0-9]-[0-9][0-9]/{
+                                       # ISO 8601 date
+                                       print $1
+                                       exit
+                               }
+                               /^... ... [ 0-9][0-9] [ 0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9]+ /{
+                                       # old-fashioned date and time (Emacs 19.31 and earlier)
+                                       '"$month_data"'
+                                       year = $5
+                                       for (i=0; i<=11; i++) if (m[i] == $2) break
+                                       dd = $3
+                                       printf "%d-%02d-%02d\n", year, i+1, dd
+                                       exit
+                               }
+                       '
+                       d=`$AWK "$e" <"$changelog"` || exit
+                       case $d in
+                       ?*) datearg="-d>$d";;
+                       esac
+               fi;;
+       esac
+
+       # Use TZ specified by ChangeLog local variable, if any.
        if test -s "$changelog"
        then
-               e='
-                       /^[0-9]+-[0-9][0-9]-[0-9][0-9]/{
-                               # ISO 8601 date
-                               print $1
-                               exit
+               extractTZ='
+                       /^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*"\([^"]*\)".*/{
+                               s//\1/; p; q
                        }
-                       /^... ... [ 0-9][0-9] [ 0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9]+ /{
-                               # old-fashioned date and time (Emacs 19.31 and earlier)
-                               '"$month_data"'
-                               year = $5
-                               for (i=0; i<=11; i++) if (m[i] == $2) break
-                               dd = $3
-                               printf "%d-%02d-%02d\n", year, i+1, dd
-                               exit
+                       /^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*t.*/{
+                               s//UTC0/; p; q
                        }
                '
-               d=`$AWK "$e" <"$changelog"` || exit
-               case $d in
-               ?*) datearg="-d>$d"
+               logTZ=`tail "$changelog" | sed -n "$extractTZ"`
+               case $logTZ in
+               ?*) TZ=$logTZ; export TZ;;
                esac
        fi
-esac
 
-# Use TZ specified by ChangeLog local variable, if any.
-if test -s "$changelog"
-then
-       extractTZ='
-               /^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*"\([^"]*\)".*/{
-                       s//\1/; p; q
-               }
-               /^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*t.*/{
-                       s//UTC0/; p; q
-               }
-       '
-       logTZ=`tail "$changelog" | sed -n "$extractTZ"`
-       case $logTZ in
-       ?*) TZ=$logTZ; export TZ
-       esac
-fi
-
-# If CVS is in use, examine its repository, not the normal RCS files.
-if test ! -f CVS/Repository
-then
-       rlog=rlog
-       repository=
-else
-       rlog='cvs -q log'
-       repository=`sed 1q <CVS/Repository` || exit
-       test ! -f CVS/Root || CVSROOT=`cat <CVS/Root` || exit
-       case $CVSROOT in
-       *:/*)
-               # remote repository
-               ;;
-       *)
-               # local repository
-               case $repository in
-               /*) ;;
-               *) repository=${CVSROOT?}/$repository
+       # If CVS is in use, examine its repository, not the normal RCS files.
+       if test ! -f CVS/Repository
+       then
+               rlog=rlog
+               repository=
+       else
+               rlog='cvs -q log'
+               repository=`sed 1q <CVS/Repository` || exit
+               test ! -f CVS/Root || CVSROOT=`cat <CVS/Root` || exit
+               case $CVSROOT in
+               *:/*:/*)
+                       echo >&2 "$0: $CVSROOT: CVSROOT has multiple ':/'s"
+                       exit 1;;
+               *:/*)
+                       # remote repository
+                       pository=`expr "X$repository" : '.*:\(/.*\)'`;;
+               *)
+                       # local repository
+                       case $repository in
+                       /*) ;;
+                       *) repository=${CVSROOT?}/$repository;;
+                       esac
+                       if test ! -d "$repository"
+                       then
+                               echo >&2 "$0: $repository: bad repository (see CVS/Repository)"
+                               exit 1
+                       fi
+                       pository=$repository;;
                esac
-               if test ! -d "$repository"
-               then
-                       echo >&2 "$0: $repository: bad repository (see CVS/Repository)"
-                       exit 1
-               fi
-       esac
-fi
 
-# Use $rlog's -zLT option, if $rlog supports it.
-case `$rlog -zLT 2>&1` in
-*' option'*) ;;
-*)
-       case $rlog_options in
-       '') rlog_options=-zLT;;
-       ?*) rlog_options=-zLT$nl$rlog_options
+               # Ensure that $pository ends in exactly one slash.
+               while :
+               do
+                       case $pository in
+                       *//) pository=`expr "X$pository" : 'X\(.*\)/'`;;
+                       */) break;;
+                       *) pository=$pository/; break;;
+                       esac
+               done
+
+       fi
+
+       # Use $rlog's -zLT option, if $rlog supports it.
+       case `$rlog -zLT 2>&1` in
+       *' option'*) ;;
+       *)
+               case $rlog_options in
+               '') rlog_options=-zLT;;
+               ?*) rlog_options=-zLT$nl$rlog_options;;
+               esac;;
        esac
-esac
 
-# With no arguments, examine all files under the RCS directory.
-case $# in
-0)
-       case $repository in
-       '')
-               oldIFS=$IFS
-               IFS=$nl
-               case $recursive in
-               t)
-                       RCSdirs=`find . -name RCS -type d -print`
-                       filesFromRCSfiles='s|,v$||; s|/RCS/|/|; s|^\./||'
-                       files=`
-                               {
-                                       case $RCSdirs in
-                                       ?*) find $RCSdirs \
-                                                       -type f \
-                                                       ! -name '*_' \
-                                                       ! -name ',*,' \
-                                                       ! -name '.*_' \
-                                                       ! -name .rcsfreeze.log \
-                                                       ! -name .rcsfreeze.ver \
-                                                       -print
+       # With no arguments, examine all files under the RCS directory.
+       case $# in
+       0)
+               case $repository in
+               '')
+                       oldIFS=$IFS
+                       IFS=$nl
+                       case $recursive in
+                       t)
+                               RCSdirs=`find . -name RCS -type d -print`
+                               filesFromRCSfiles='s|,v$||; s|/RCS/|/|; s|^\./||'
+                               files=`
+                                       {
+                                               case $RCSdirs in
+                                               ?*) find $RCSdirs \
+                                                               -type f \
+                                                               ! -name '*_' \
+                                                               ! -name ',*,' \
+                                                               ! -name '.*_' \
+                                                               ! -name .rcsfreeze.log \
+                                                               ! -name .rcsfreeze.ver \
+                                                               -print;;
+                                               esac
+                                               find . -name '*,v' -print
+                                       } |
+                                       sort -u |
+                                       sed "$filesFromRCSfiles"
+                               `;;
+                       *)
+                               files=
+                               for file in RCS/.* RCS/* .*,v *,v
+                               do
+                                       case $file in
+                                       RCS/. | RCS/.. | RCS/,*, | RCS/*_) continue;;
+                                       RCS/.rcsfreeze.log | RCS/.rcsfreeze.ver) continue;;
+                                       RCS/.\* | RCS/\* | .\*,v | \*,v) test -f "$file" || continue;;
+                                       RCS/*,v | RCS/.*,v) ;;
+                                       RCS/* | RCS/.*) test -f "$file" || continue;;
                                        esac
-                                       find . -name '*,v' -print
-                               } |
-                               sort -u |
-                               sed "$filesFromRCSfiles"
-                       `;;
-               *)
-                       files=
-                       for file in RCS/.* RCS/* .*,v *,v
-                       do
-                               case $file in
-                               RCS/. | RCS/.. | RCS/,*, | RCS/*_) continue;;
-                               RCS/.rcsfreeze.log | RCS/.rcsfreeze.ver) continue;;
-                               RCS/.\* | RCS/\* | .\*,v | \*,v) test -f "$file" || continue;;
-                               RCS/*,v | RCS/.*,v) ;;
-                               RCS/* | RCS/.*) test -f "$file" || continue
-                               esac
+                                       case $files in
+                                       '') files=$file;;
+                                       ?*) files=$files$nl$file;;
+                                       esac
+                               done
                                case $files in
-                               '') files=$file;;
-                               ?*) files=$files$nl$file
-                               esac
-                       done
-                       case $files in
-                       '') exit 0
+                               '') exit 0;;
+                               esac;;
                        esac
-               esac
-               set x $files
-               shift
-               IFS=$oldIFS
+                       set x $files
+                       shift
+                       IFS=$oldIFS;;
+               esac;;
        esac
-esac
-
-logdir=$TMPDIR/rcs2log$$
-llogout=$logdir/l
-rlogout=$logdir/r
-trap exit 1 2 13 15
-trap "rm -fr $logdir 2>/dev/null" 0
-(umask 077 && exec mkdir $logdir) || exit
 
-case $datearg in
-?*) $rlog $rlog_options "$datearg" ${1+"$@"} >$rlogout;;
-'') $rlog $rlog_options ${1+"$@"} >$rlogout
-esac || exit
+       case $datearg in
+       ?*) $rlog $rlog_options "$datearg" ${1+"$@"} >$rlogfile;;
+       '') $rlog $rlog_options ${1+"$@"} >$rlogfile;;
+       esac || exit;;
+esac
 
 
 # Get the full name of each author the logs mention, and set initialize_fullname
@@ -329,17 +369,14 @@ case $loginFullnameMailaddrs in
                sed 's/["\\]/\\&/g' >$llogout <<EOF || exit
 $loginFullnameMailaddrs
 EOF
-               loginFullnameMailaddrs=`cat $llogout`
+               loginFullnameMailaddrs=`cat $llogout`;;
        esac
 
        oldIFS=$IFS
        IFS=$nl
        for loginFullnameMailaddr in $loginFullnameMailaddrs
        do
-               case $loginFullnameMailaddr in
-               *"$tab"*) IFS=$tab;;
-               *) IFS=:
-               esac
+               IFS=$tab
                set x $loginFullnameMailaddr
                login=$2
                fullname=$3
@@ -349,25 +386,26 @@ EOF
                initialize_mailaddr="$initialize_mailaddr
                        mailaddr[\"$login\"] = \"$mailaddr\""
        done
-       IFS=$oldIFS
+       IFS=$oldIFS;;
 esac
 
-case $llogout in
-?*) sort -u -o $llogout <<EOF || exit
+case $logins in
+?*)
+       sort -u -o $llogout <<EOF
 $logins
 EOF
-esac
+       ;;
+'')
+       : ;;
+esac >$llogout || exit
+
 output_authors='/^date: / {
        if ($2 ~ /^[0-9]*[-\/][0-9][0-9][-\/][0-9][0-9]$/ && $3 ~ /^[0-9][0-9]:[0-9][0-9]:[0-9][0-9][-+0-9:]*;$/ && $4 == "author:" && $5 ~ /^[^;]*;$/) {
                print substr($5, 1, length($5)-1)
        }
 }'
 authors=`
-       $AWK "$output_authors" <$rlogout |
-       case $llogout in
-       '') sort -u;;
-       ?*) sort -u | comm -23 - $llogout
-       esac
+       $AWK "$output_authors" <"$rlogfile" | sort -u | comm -23 - $llogout
 `
 case $authors in
 ?*)
@@ -439,13 +477,13 @@ EOF
                        )
                } 2>/dev/null |
                $AWK -F: "$awkscript"
-       `$initialize_fullname
+       `$initialize_fullname;;
 esac
 
 
 # Function to print a single log line.
 # We don't use awk functions, to stay compatible with old awk versions.
-# `Log' is the log message (with \n replaced by \001).
+# `Log' is the log message.
 # `files' contains the affected files.
 printlogline='{
 
@@ -453,21 +491,27 @@ printlogline='{
        #       * file: (function): comment
        # to
        #       * file (function): comment
-       if (Log ~ /^\([^)]*\): /) {
+       if (Log ~ /^\([^)]*\):[\t\n ]/) {
                i = index(Log, ")")
-               files = files " " substr(Log, 1, i)
+               filefunc = substr(Log, 1, i)
+               while ((j = index(filefunc, "\n"))) {
+                       files = files " " substr(filefunc, 1, j-1)
+                       filefunc = substr(filefunc, j+1)
+               }
+               files = files " " filefunc
                Log = substr(Log, i+3)
        }
 
        # If "label: comment" is too long, break the line after the ":".
        sep = " "
-       if ('"$length"' <= '"$indent"' + 1 + length(files) + index(Log, SOH)) sep = "\n" indent_string
+       i = index(Log, "\n")
+       if ('"$length"' <= '"$indent"' + 1 + length(files) + i) sep = "\n" indent_string
 
        # Print the label.
        printf "%s*%s:", indent_string, files
 
-       # Print each line of the log, transliterating \001 to \n.
-       while ((i = index(Log, SOH)) != 0) {
+       # Print each line of the log.
+       while (i) {
                logline = substr(Log, 1, i-1)
                if (logline ~ /[^'"$tab"' ]/) {
                        printf "%s%s\n", sep, logline
@@ -476,6 +520,7 @@ printlogline='{
                }
                sep = indent_string
                Log = substr(Log, i+1)
+               i = index(Log, "\n")
        }
 }'
 
@@ -496,24 +541,27 @@ case $hostname in
        *)
                domainname=`(domainname) 2>/dev/null` &&
                case $domainname in
-               *.*) hostname=$hostname.$domainname
-               esac
-       esac
+               *.*) hostname=$hostname.$domainname;;
+               esac;;
+       esac;;
 esac
 
 
 # Process the rlog output, generating ChangeLog style entries.
 
 # First, reformat the rlog output so that each line contains one log entry.
-# Transliterate \n to \001 so that multiline entries fit on a single line.
+# Transliterate \n to SOH so that multiline entries fit on a single line.
 # Discard irrelevant rlog output.
-$AWK <$rlogout '
-       BEGIN { repository = "'"$repository"'" }
-       /^RCS file:/ {
-               if (repository != "") {
-                       filename = $3
-                       if (substr(filename, 1, length(repository) + 1) == repository "/") {
-                               filename = substr(filename, length(repository) + 2)
+$AWK '
+       BEGIN {
+               pository = "'"$pository"'"
+               SOH="'"$SOH"'"
+       }
+       /^RCS file: / {
+               if (pository != "") {
+                       filename = substr($0, 11)
+                       if (substr(filename, 1, length(pository)) == pository) {
+                               filename = substr(filename, length(pository) + 1)
                        }
                        if (filename ~ /,v$/) {
                                filename = substr(filename, 1, length(filename) - 2)
@@ -526,7 +574,7 @@ $AWK <$rlogout '
                }
                rev = "?"
        }
-       /^Working file:/ { if (repository == "") filename = $3 }
+       /^Working file: / { if (repository == "") filename = substr($0, 15) }
        /'"$rlog_revision_pattern"'/, /^(-----------*|===========*)$/ {
                line = $0
                if (line ~ /'"$rlog_revision_pattern"'/) {
@@ -547,7 +595,7 @@ $AWK <$rlogout '
                        }
                        time = substr($3, 1, length($3) - 1)
                        author = substr($5, 1, length($5)-1)
-                       printf "%s %s %s %s %s %c", filename, rev, date, time, author, 1
+                       printf "%s%s%s%s%s%s%s%s%s%s", filename, SOH, rev, SOH, date, SOH, time, SOH, author, SOH
                        rev = "?"
                        next
                }
@@ -556,29 +604,25 @@ $AWK <$rlogout '
                if (line == "Initial revision" || line ~ /^file .+ was initially added on branch .+\.$/) {
                        line = "New file."
                }
-               printf "%s%c", line, 1
+               printf "%s%s", line, SOH
        }
-' |
+' <"$rlogfile" |
 
 # Now each line is of the form
-# FILENAME REVISION YYYY-MM-DD HH:MM:SS[+-TIMEZONE] AUTHOR \001LOG
-#      where \001 stands for a carriage return,
-#      and each line of the log is terminated by \001 instead of \n.
+# FILENAME@REVISION@YYYY-MM-DD@HH:MM:SS[+-TIMEZONE]@AUTHOR@LOG
+#      where @ stands for an SOH (octal code 001),
+#      and each line of LOG is terminated by SOH instead of \n.
 # Sort the log entries, first by date+time (in reverse order),
 # then by author, then by log entry, and finally by file name and revision
 # (just in case).
-sort +2 -4r +4 +0 |
+sort -t"$SOH" +2 -4r +4 +0 |
 
 # Finally, reformat the sorted log entries.
-$AWK '
+$AWK -F"$SOH" '
        BEGIN {
                logTZ = "'"$logTZ"'"
                revision = "'"$revision"'"
 
-               # Some awk variants do not understand "\001", so we have to
-               # put the char directly in the file.
-               SOH="\ 1" # <-- There is a single SOH (octal code 001) here.
-
                # Initialize the fullname and mailaddr associative arrays.
                '"$initialize_fullname"'
                '"$initialize_mailaddr"'
@@ -594,7 +638,8 @@ $AWK '
        }
 
        {
-               newlog = substr($0, 1 + index($0, SOH))
+               newlog = ""
+               for (i = 6; i < NF; i++) newlog = newlog $i "\n"
 
                # Ignore log entries prefixed by "#".
                if (newlog ~ /^#/) { next }
@@ -618,7 +663,7 @@ $AWK '
                                newclumpname = substr(newlog, 1, i)
                                while (substr(newlog, i+1) ~ /^['"$tab"' ]/) i++
                                newlog = substr(newlog, i+1)
-                               if (clumpname == newclumpname) sep = ""
+                               if (clumpname == newclumpname && date == $3 && author == $5) sep = ""
                        }
                        printf sep
                        clumpname = newclumpname