Script tests re-added, all tests can run under gdb

Also fixed a minor bug with printing, and removed the ability to
configure the parser.

Added and updated QUICKSTART.md as a quick way to get people started.

There's some broken scripts under 'scripts/' that require functions to
work properly.

tests/scripts/makefile

@@ -0,0 +1,52 @@
+#compiler settings
+CC=gcc
+CFLAGS+=-std=c17 -g -Wall -Werror -Wextra -Wpedantic -Wformat=2 -Wno-newline-eof
+LIBS+=-lm
+LDFLAGS+=
+
+ifeq ($(shell uname),Linux)
+LDFLAGS=-Wl,--gc-sections
+else ifeq ($(shell uname),NetBSD)
+LDFLAGS=-Wl,--gc-sections
+else ifeq ($(OS),Windows_NT)
+LDFLAGS=-Wl,--gc-sections
+else ifeq ($(shell uname),Darwin)
+LDFLAGS=-Wl,-dead_strip
+else
+	@echo "LDFLAGS set failed - what platform is this?"
+endif
+
+#directories
+TEST_ROOTDIR=../..
+TEST_SOURCEDIR=$(TEST_ROOTDIR)/$(TOY_SOURCEDIR)
+TEST_REPLDIR=$(TEST_ROOTDIR)/$(TOY_REPLDIR)
+TEST_SCRIPTDIR=.
+
+#file names
+TEST_SCRIPTFILES=$(wildcard $(TEST_SCRIPTDIR)/test_*.toy)
+
+#build the source and repl, copy to the local dir, and run
+all: source repl copy run
+
+#compile the source and repl first
+source:
+	$(MAKE) -C $(TEST_SOURCEDIR)
+
+repl: source
+	$(MAKE) -C $(TEST_REPLDIR)
+
+copy:
+	cp -r $(TEST_ROOTDIR)/$(TOY_OUTDIR) .
+
+run: $(TEST_SCRIPTFILES:.toy=.toy-run)
+
+%.toy-run: %.toy
+	find  -name repl* -type f -exec {} -f ../$< --verbose \;
+
+#using gdb
+gdb: source repl copy run-gdb
+
+run-gdb: $(TEST_SCRIPTFILES:.toy=.toy-run-gdb)
+
+%.toy-run-gdb: %.toy
+	gdb $(TEST_OUTDIR)/$(TEST_REPLNAME) -ix gdb_init -ex=run --batch --return-child-result --args "out/repl.out" "-f" "../$<" "--verbose"