Integrate PCRE capture handling

Makefile

@@ -86,6 +86,8 @@ SUBDIR += src/lx
 SUBDIR += src
 SUBDIR += tests/capture
 SUBDIR += tests/complement
+SUBDIR += tests/gen
+SUBDIR += tests/idmap
 SUBDIR += tests/intersect
 SUBDIR += tests/ir
 SUBDIR += tests/eclosure

fuzz/Makefile

@@ -7,6 +7,15 @@ ${BUILD}/fuzz/: ${BUILD}
 
 DIR += ${BUILD}/fuzz
 
+# Uncomment to enable capture fuzzing using PCRE as a test oracle.
+#PCRE_CMP=1
+
+.if PCRE_CMP
+PKG += libpcre2-8
+LFLAGS.fuzzer += ${LIBS.libpcre2-8}
+CFLAGS.${SRC:Mfuzz/target.c} += -DPCRE_CMP=1
+.endif
+
 .for src in ${SRC:Mfuzz/*.c}
 CFLAGS.${src} += -std=c99
 .endfor
@@ -15,7 +24,7 @@ CFLAGS.${src} += -std=c99
 fuzz:: ${BUILD}/fuzz/fuzzer
 
 ${BUILD}/fuzz/fuzzer: mkdir
-	${CC} -o $@ ${LFLAGS} ${.ALLSRC:M*.o} ${.ALLSRC:M*.a}
+	${CC} -o $@ ${LFLAGS} ${LFLAGS.fuzzer} ${.ALLSRC:M*.o} ${.ALLSRC:M*.a}
 
 .for lib in ${LIB:Mlibfsm} ${LIB:Mlibre}
 ${BUILD}/fuzz/fuzzer: ${BUILD}/lib/${lib:R}.a

fuzz/run_fuzzer

@@ -25,5 +25,10 @@ if [ ! -d "${SEEDS}" ]; then
    mkdir -p "${SEEDS}"
 fi
 
-echo "\n==== ${FUZZER}"
-${FUZZER} -jobs=${WORKERS} -workers=${WORKERS} -max_total_time=${SECONDS} ${SEEDS}
+if [ -z "${1}" ]; then
+    echo "\n==== ${FUZZER}"
+    ${FUZZER} -jobs=${WORKERS} -workers=${WORKERS} -max_total_time=${SECONDS} ${SEEDS}
+else
+    xxd "${1}"
+    ${FUZZER} "${1}"
+fi