1.1 --- a/doc-src/System/Thy/Misc.thy	Sat Jun 06 23:43:07 2009 +0200
     1.2 +++ b/doc-src/System/Thy/Misc.thy	Sun Jun 07 19:07:05 2009 +0200
     1.3 @@ -85,6 +85,8 @@
     1.4    Options are:
     1.5      -a           display complete environment
     1.6      -b           print values only (doesn't work for -a)
     1.7 +    -d FILE      dump complete environment to FILE
     1.8 +                 (null terminated entries)
     1.9  
    1.10    Get value of VARNAMES from the Isabelle settings.
    1.11  \end{ttbox}
    1.12 @@ -95,6 +97,10 @@
    1.13    Normally, output is a list of lines of the form @{text
    1.14    name}@{verbatim "="}@{text value}. The @{verbatim "-b"} option
    1.15    causes only the values to be printed.
    1.16 +
    1.17 +  Option @{verbatim "-d"} produces a dump of the complete environment
    1.18 +  to the specified file.  Entries are terminated by the ASCII null
    1.19 +  character, i.e.\ the C string terminator.
    1.20  *}
    1.21  
    1.22  

     2.1 --- a/doc-src/System/Thy/document/Misc.tex	Sat Jun 06 23:43:07 2009 +0200
     2.2 +++ b/doc-src/System/Thy/document/Misc.tex	Sun Jun 07 19:07:05 2009 +0200
     2.3 @@ -110,6 +110,8 @@
     2.4    Options are:
     2.5      -a           display complete environment
     2.6      -b           print values only (doesn't work for -a)
     2.7 +    -d FILE      dump complete environment to FILE
     2.8 +                 (null terminated entries)
     2.9  
    2.10    Get value of VARNAMES from the Isabelle settings.
    2.11  \end{ttbox}
    2.12 @@ -118,7 +120,11 @@
    2.13    environment that Isabelle related programs are run in. This usually
    2.14    contains much more variables than are actually Isabelle settings.
    2.15    Normally, output is a list of lines of the form \isa{name}\verb|=|\isa{value}. The \verb|-b| option
    2.16 -  causes only the values to be printed.%
    2.17 +  causes only the values to be printed.
    2.18 +
    2.19 +  Option \verb|-d| produces a dump of the complete environment
    2.20 +  to the specified file.  Entries are terminated by the ASCII null
    2.21 +  character, i.e.\ the C string terminator.%
    2.22  \end{isamarkuptext}%
    2.23  \isamarkuptrue%
    2.24  %

     3.1 --- a/lib/Tools/getenv	Sat Jun 06 23:43:07 2009 +0200
     3.2 +++ b/lib/Tools/getenv	Sun Jun 07 19:07:05 2009 +0200
     3.3 @@ -17,6 +17,8 @@
     3.4    echo "  Options are:"
     3.5    echo "    -a           display complete environment"
     3.6    echo "    -b           print values only (doesn't work for -a)"
     3.7 +  echo "    -d FILE      dump complete environment to FILE"
     3.8 +  echo "                 (null terminated entries)"
     3.9    echo
    3.10    echo "  Get value of VARNAMES from the Isabelle settings."
    3.11    echo
    3.12 @@ -30,8 +32,9 @@
    3.13  
    3.14  ALL=""
    3.15  BASE=""
    3.16 +DUMP=""
    3.17  
    3.18 -while getopts "ab" OPT
    3.19 +while getopts "abd:" OPT
    3.20  do
    3.21    case "$OPT" in
    3.22      a)
    3.23 @@ -40,6 +43,9 @@
    3.24      b)
    3.25        BASE=true
    3.26        ;;
    3.27 +    d)
    3.28 +      DUMP="$OPTARG"
    3.29 +      ;;
    3.30      \?)
    3.31        usage
    3.32        ;;
    3.33 @@ -68,3 +74,8 @@
    3.34      fi
    3.35    done
    3.36  fi
    3.37 +
    3.38 +if [ -n "$DUMP" ]; then
    3.39 +  exec perl -w -e 'for $key (keys %ENV) { print $key, "=", $ENV{$key}, "\x00"; }' > "$DUMP"
    3.40 +fi
    3.41 +