CURDOC=$(shell basename "$(CURDIR)")
STROPHEN=[1-4]

ifeq ($(FUER),ewe)
  SPEZIFISCH=\#(set! paper-alist (cons '(\"kindle\" . (cons (* 210 mm) (* 130 mm))) paper-alist))\n\#(set-default-paper-size \"kindle\")
else
  SPEZIFISCH=
  # \#(set-global-staff-size 14)
endif

ifeq ($(MIDI),1)
  MIDI_REGEX=
else
  MIDI_REGEX=/\\\\midi/{ :a; s/\\\\midi[^{}]*{/\\\\midi/; tb; N; ba; :b; s/{[^{}]*}//; tb; s/\\\\midi[^{}]*}//; t; N; bb; };
endif

ifeq ($(KLAVIER),1)
  KLAVIER_REGEX=
else
  KLAVIER_REGEX=/%Klavier%/d;
endif

all: $(CURDOC).pdf
	pkill -SIGHUP -xf 'mupdf(-x11)? (.*/)?$<' || true

clean:
	rm -f *.pre

Clean: clean
	rm -f *.pdf *.midi

%.pre: %.ly
	sed " \
		s@%spezifisch%@$(SPEZIFISCH)@ ; \
		/%STR_\($(STROPHEN)\)%/{ \
			s/%[A-Z_0-9]\+%//; \
			p; \
			d; \
		}; \
		/%[A-Z_0-9]\+%/d ; \
		$(KLAVIER_REGEX) \
		$(MIDI_REGEX) \
	" "$<" > "$@"

%.pdf: %.pre satz.pre *.ly
	lilypond $<