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|
#!/bin/sh
#------------------------------------------------------------------------------
# ========= |
# \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
# \\ / O peration |
# \\ / A nd | www.openfoam.com
# \\/ M anipulation |
#-------------------------------------------------------------------------------
# Copyright (C) 2019 OpenCFD Ltd.
#-------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, licensed under GNU General Public License
# <http://www.gnu.org/licenses/>.
#
# Script
# makeParser
#
# Description
# Pregenerate ragel code and/or lemon parser headers
#
#------------------------------------------------------------------------------
usage() {
exec 1>&2
while [ "$#" -ge 1 ]; do echo "$1"; shift; done
cat<<USAGE
Usage: ${0##*/} [options]
options:
-prefix=NAME Common prefix for parser and scanner
-parser=FILE Generate lemon parser header
-scanner=FILE Generate ragel scanner code
-code Generate parser code, not header
-header Generate parser header, not code (default)
-dry-run Process m4 only (output on stdout)
-no-tmp Do not retain temporary m4 processed files
-remove Remove generated code
-h, -help Print the usage
Pregenerate ragel code and/or lemon parser headers
USAGE
exit 1
}
#------------------------------------------------------------------------------
# Parse arguments and options
#------------------------------------------------------------------------------
unset prefix parser scanner optHeader optDryRun optRemoveFile optRemoveTmp
while [ "$#" -gt 0 ]
do
case "$1" in
(-h | -help*) usage ;;
(-prefix=*) prefix="${1#*=}" ;;
(-parser=*) parser="${1#*=}" ;;
(-scanner=*) scanner="${1#*=}" ;;
(-code) optHeader=false ;;
(-head*) optHeader=true ;;
(-dry-run) optDryRun="-dry-run" ;; # Pass verbatim to wrapper
(-no-tmp) optRemoveTmp="-no-tmp" ;; # Pass verbatim to wrapper
(-remove) optRemoveFile=true ;;
(*) break ;;
esac
shift
done
#------------------------------------------------------------------------------
# Remove file, with feedback. $1 = file, $2 = message
removeFile() {
if test -f "$1" && rm -f "$1"
then
echo "Removed generated $2 file" 1>&2
else
echo "No generated $2 file to remove" 1>&2
fi
}
case "$scanner" in
(*.rl)
input="${prefix}${scanner}"
output="${prefix}${scanner%.*}.cc"
if [ "$optRemoveFile" = true ]
then
removeFile "$output" "ragel scanner"
elif command -v ragel >/dev/null
then
echo "Generating ragel scanner" 1>&2
ragel -G2 -o "$output" "$input"
else
echo "No ragel, leaving scanner intact" 1>&2
fi
echo
;;
esac
# The output code extension is .c (default) or .cc, but also possibly .C
# - mapping here consistent with wmake/rules/General/{bison,lemon}
extCode=c
case "$parser" in
(*.Y) extCode=C ;;
(*.yy | *.yy-m4 | *.lyy | *.lyy-m4) extCode=cc ;;
esac
# Detect m4, any additional messages (eg, using m4 etc)
unset usingM4 message
case "$parser" in
(*m4)
usingM4=true
message=", using m4 filtering"
;;
esac
case "$parser" in
(*.ly | *.lyy | *.ly-m4 | *.lyy-m4) # Lemon
input="${prefix}${parser}"
output="${parser%.*}.h"
if [ "$optRemoveFile" = true ]
then
removeFile "$output" "lemon header"
else
# Touch parser file time when using m4.
# This ensures that we have a better correspondence between
# generated and compiled versions since changes to the m4 macros
# may otherwise not be noticed.
if [ "$usingM4" = true ] && [ -f "$input" ]
then
message="$message (touching input file time)"
touch "$input"
fi
if [ "$optHeader" = false ]
then
echo "Generating lemon parser code ($extCode)$message" 1>&2
"${WM_PROJECT_DIR:?}/wmake/scripts/wrap-lemon" \
$optDryRun $optRemoveTmp -e"$extCode" -p -s "$input"
else
echo "Generating lemon parser header$message" 1>&2
"${WM_PROJECT_DIR:?}/wmake/scripts/wrap-lemon" \
$optDryRun $optRemoveTmp -header -p -s "$input"
fi
fi
echo
;;
(*.[Yy] | *.yy | *.y-m4 | *.yy-m4) # Bison
input="${prefix}${parser}"
if [ "$optRemoveFile" = true ]
then
echo "File removal not yet supported for bison" 1>&2
else
# Touch parser file time when using m4.
# This ensures that we have a better correspondence between
# generated and compiled versions since changes to the m4 macros
# may otherwise not be noticed.
if [ "$usingM4" = true ] && [ -f "$input" ]
then
message="$message (touching input file time)"
touch "$input"
fi
if [ -n "$optDryRun" ]
then
echo "Generating bison parser code ($extCode)$message" 1>&2
"${WM_PROJECT_DIR:?}/wmake/scripts/wrap-bison" \
$optDryRun $optRemoveTmp "$input"
else
echo "Currently only -dry-run is supported for bison" 1>&2
fi
fi
echo
;;
esac
#------------------------------------------------------------------------------
|
