# -*- shell-script -*- :mode=shellscript:

 #

 # Isabelle system settings.

 #

 # Important notes:

 #   * See the "system" manual for explanations on Isabelle settings

 #   * User settings go into $ISABELLE_HOME_USER/etc/settings

 #   * DO NOT EDIT the repository copy of this file!

 #   * DO NOT COPY this file into the $ISABELLE_HOME_USER directory!

 ###

 ### Isabelle/Scala

 ###

 ISABELLE_SCALAC_OPTIONS="-encoding UTF-8 -nowarn -target:jvm-1.8 -Xmax-classfile-name 130 -J-Xms128m -J-Xmx1024m -J-Xss2m"

 ISABELLE_JAVA_SYSTEM_OPTIONS="-server -Dfile.encoding=UTF-8 -Disabelle.threads=0"

 classpath "$ISABELLE_HOME/lib/classes/Pure.jar"

 #paranoia settings -- avoid intrusion of alien options

 unset "_JAVA_OPTIONS"

 unset "JAVA_TOOL_OPTIONS"

 #paranoia settings -- avoid problems of Java/Swing versus XIM/IBus etc.

 unset XMODIFIERS

 ###

 ### Interactive sessions (cf. isabelle console)

 ###

 ISABELLE_LINE_EDITOR="rlwrap"

 ###

 ### Batch sessions (cf. isabelle build)

 ###

 ISABELLE_BUILD_OPTIONS=""

 ###

 ### Document preparation (cf. isabelle latex/document)

 ###

 ISABELLE_LATEX="latex"

 ISABELLE_PDFLATEX="pdflatex"

 ISABELLE_BIBTEX="bibtex"

 ISABELLE_MAKEINDEX="makeindex"

 ISABELLE_EPSTOPDF="epstopdf"

 ###

 ### Misc path settings

 ###

 ISABELLE_COMPONENT_REPOSITORY="https://isabelle.in.tum.de/components"

 # The place for user configuration, heap files, etc.

 if [ -z "$ISABELLE_IDENTIFIER" ]; then

   ISABELLE_HOME_USER="$USER_HOME/.isabelle/isabisac"

 else

   ISABELLE_HOME_USER="$USER_HOME/.isabelle/isabisac"

 fi

 # Where to look for isabelle tools (multiple dirs separated by ':').

 ISABELLE_TOOLS="$ISABELLE_HOME/lib/Tools"

 # Location for temporary files (should be on a local file system).

 ISABELLE_TMP_PREFIX="${TMPDIR:-/tmp}/isabelle-$USER"

 # Heap input locations. ML system identifier is included in lookup.

 ISABELLE_PATH="$ISABELLE_HOME_USER/heaps:$ISABELLE_HOME/heaps"

 # Heap output location. ML system identifier is appended automatically later on.

 ISABELLE_OUTPUT="$ISABELLE_HOME_USER/heaps"

 ISABELLE_BROWSER_INFO="$ISABELLE_HOME_USER/browser_info"

 # Site settings check -- just to make it a little bit harder to copy this file verbatim!

 [ -n "$ISABELLE_SITE_SETTINGS_PRESENT" ] && \

   { echo >&2 "### Isabelle site settings already present!  Maybe copied etc/settings in full?"; }

 ISABELLE_SITE_SETTINGS_PRESENT=true

 ###

 ### Default logic

 ###

 ISABELLE_LOGIC=HOL

 ###

 ### Docs

 ###

 # Where to look for docs (multiple dirs separated by ':').

 ISABELLE_DOCS="$ISABELLE_HOME/doc"

 ISABELLE_DOCS_RELEASE_NOTES="ANNOUNCE:README:NEWS:COPYRIGHT:CONTRIBUTORS:contrib/README:src/Tools/jEdit/README:README_REPOSITORY"

 ISABELLE_DOCS_EXAMPLES="src/HOL/ex/Seq.thy:src/HOL/ex/ML.thy:src/HOL/Unix/Unix.thy:src/HOL/Isar_Examples/Drinker.thy:src/Tools/SML/Examples.thy"

 # "open" within desktop environment (potentially asynchronous)

 case "$ISABELLE_PLATFORM_FAMILY" in

   linux)

     ISABELLE_OPEN="xdg-open"

     ;;

   macos)

     ISABELLE_OPEN="open"

     ;;

   windows)

     ISABELLE_OPEN="cygstart"

     ;;

 esac

 PDF_VIEWER="$ISABELLE_OPEN"

 DVI_VIEWER="$ISABELLE_OPEN"

 ###

 ### Symbol rendering

 ###

 ISABELLE_SYMBOLS="$ISABELLE_HOME/etc/symbols:$ISABELLE_HOME_USER/etc/symbols"

 ###

 ### Misc settings

 ###

 ISABELLE_GNUPLOT="gnuplot"

 #ISABELLE_GHC="/usr/bin/ghc"

 #ISABELLE_OCAML="/usr/bin/ocaml"

 #ISABELLE_SWIPL="/usr/bin/swipl"