1 files changed, 87 insertions, 0 deletions
diff --git a/tests/ruleset.sh b/tests/ruleset.sh
new file mode 100644
index 0000000..8832a57
--- /dev/null
+++ b/tests/ruleset.sh
@@ -0,0 +1,87 @@
+#!/bin/sh
+# Generate make productions for testing files from rulesets.  Also set up SOURCES
+# variables for link time.  Pass it a list of back-end suffixes.
+#
+# This script exists because automake isn't able to handle the pattern rules that
+# would be natural to use. Output is written to standard output for
+# inclusion in a Makefile.am, typically by redirecting the output and
+# then an automake include directive.
+
+set -eu
+
+RULESET_TESTS=""
+RULESET_REMOVABLES=""
+
+printf "\n# Begin generated test rules\n\n"
+
+compatible() {
+    mybackend=$1
+    myruleset=$2
+    # Some options are both a pain to test outside the default back end and really don't need to be
+    # tested in more than one back end anyway.  An option is in this category if it doesn't affect
+    # any conditionals in the code generation, just the way the Flex scanner generates its NDFSA tables.
+    [ "${mybackend}" = "nr" ] || [ "${myruleset}" != "lexcompat.rules" -a "${myruleset}" != "posixlycorrect.rules" ]
+}
+
+for backend in "$@" ; do
+    for ruleset in *.rules; do
+	if compatible "${backend}" "${ruleset}" ; then
+	    testname="${ruleset%.*}_${backend}"
+	    echo "${testname}_SOURCES = ${testname}.l"
+	    echo "${testname}.l: \$(srcdir)/${ruleset} \$(srcdir)/testmaker.sh \$(srcdir)/testmaker.m4"
+	    # we're deliberately single-quoting this because we _don't_ want those variables to be expanded yet
+	    # shellcheck disable=2016
+	    printf '\t$(SHELL) $(srcdir)/testmaker.sh $@\n\n'
+	    RULESET_TESTS="${RULESET_TESTS} ${testname}"
+	    RULESET_REMOVABLES="${RULESET_REMOVABLES} ${testname} ${testname}.c ${testname}.l ${ruleset%.*}.txt"
+	fi
+    done
+    for kind in opt ser ver ; do
+        for opt in -Ca -Ce -Cf -CF -Cm -Cem -Cae -Caef -CaeF -Cam -Caem ; do
+            bare_opt=${opt#-}
+            # The filenames must work on case-insensitive filesystems.
+            bare_opt=$(echo ${bare_opt}| sed 's/F$/xF/')
+            testname=tableopts_${kind}_${backend}-${bare_opt}.${kind}
+            RULESET_TESTS="${RULESET_TESTS} ${testname}"
+            RULESET_REMOVABLES="${RULESET_REMOVABLES} ${testname} ${testname}.c ${testname}.l ${testname}.tables"
+            cat << EOF
+tableopts_${kind}_${backend}_${bare_opt}_${kind}_SOURCES = ${testname}.l
+${testname}.l: \$(srcdir)/tableopts.rules \$(srcdir)/testmaker.sh \$(srcdir)/testmaker.m4
+	\$(SHELL) \$(srcdir)/testmaker.sh \$@
+
+EOF
+        done
+    done
+done
+
+# posixlycorrect is a special case becaae we need to set POSIXLY_CORRECT
+# in Flex's environment while these .l files are being processed.
+for backend in "$@" ; do
+    case $backend in
+	nr|r|c99) ext="c" ;;
+	*) ext=${backend} ;;
+    esac
+    # shellcheck disable=SC2059
+    printf "posixlycorrect_${backend}.${ext}: posixlycorrect_${backend}.l \$(FLEX)\n"
+    printf "\t\$(AM_V_LEX)POSIXLY_CORRECT=1 \$(FLEX) \$(TESTOPTS) -o \$@ \$<\n"
+    echo ""
+
+    echo "test-yydecl-${backend}.sh\$(EXEEXT): test-yydecl-gen.sh"
+    # shellcheck disable=SC2059
+    printf "\t\$(SHELL) test-yydecl-gen.sh ${backend} >test-yydecl-${backend}.sh\$(EXEEXT)\n"
+    # shellcheck disable=SC2059
+    printf "\tchmod a+x test-yydecl-${backend}.sh\$(EXEEXT)\n"
+    echo ""
+
+    RULESET_TESTS="${RULESET_TESTS} test-yydecl-${backend}.sh"
+    RULESET_REMOVABLES="${RULESET_REMOVABLES} test-yydecl-${backend}.sh"
+done
+
+echo ""
+printf "# End generated test rules\n"
+
+echo RULESET_TESTS = "${RULESET_TESTS}"
+echo RULESET_REMOVABLES = "${RULESET_REMOVABLES}"
+echo
+
+