# Description: Makefile

# Configuration:

# document draft version (negative: -1 for draft -00, -2 for draft -01, etc.)
#   zero for RFC style with XXXX
#   positive for assigned RFC number
RFC = -6

# current draft version suffix (drafts only)
VERSION = 05

# previous draft version suffix (for diffs)
OLDVERSION = 04

# draft file name (w/o version or file type suffix)
FNAME = draft-lilly-using-troff

# formatters
#   for text output:
NROFF = groff -C
#NROFF = nroff -C
#NROFF = nroff
#   for PostScript
TROFF = groff -C
#TROFF = troff

# formatter device type (-T) for ASCII text output
#    N.B. Drafts and RFCs use ASCII;
#         don't specify extended charsets such as iso-8859 variants or utf-8
#    N.B. no half-line or reverse-line motions; don't specify lp, 37, or 450
ASCII = ascii

# formatter device type (-T) for PostScript output
POSTSCRIPT = ps
#POSTSCRIPT = post

# specification of page sizes in (PostScript) formatter arguments
LETTER = -P-pletter
#LETTER =
A4 = -P-pa4
#A4 =

# preprocessors
#   independent of text vs. PostScript
ABNFF = abnff
CHEM = chem
DFORMAT = dformat
GRAP = grap
IDREF = idref
RFCREF = rfcref
SOELIM = soelim
#   separate text/PostScript versions
PIC = pic -n
NPIC = pic -n
TBL = tbl
NTBL = tbl
EQN = eqn -T$(POSTSCRIPT)
NEQN = neqn -T$(ASCII)

# RFC macros:
# MACROS can be a -m argument, the name of the macros file, or empty (if .so is used)
#MACROS = -mrfc
#MACROS = -M. -mrfc
MACROS = tmac.rfc
#MACROS =
MACDIR = /usr/share/groff/site-tmac

# other formatter arguments
ARGS =

# postprocessing
#   special text postprocessing
NPOST =
#NPOST = | grotty -f
#NPOST = | col -bx | fix.pl
#   sepcial PostScript postprocessing
TPOST =
#TPOST = | tr2post | psfonts

# PostScript to PDF
PS2PDF = ps2pdf

# optimize PDF
PDFOPT = pdfopt

# I-D nits checker
IDNITS = idnits

# diffs generator
RFCDIFF = rfcdiff --diff --body --stdout

# end of configuration

# (usually) Invariant stuff below this line
BASE = $(FNAME)-$(VERSION)
OLD = $(FNAME)-$(OLDVERSION)
MAKEFILES = Makefile

.SUFFIXES:	.rfc .df .chem .eqn .grap .ngrap .pic .npic .tbl .ntbl .abnf .nabnf .troff .nroff .ms .tms .txt .ps .pdf .psa4 .pdfa4 .html

.rfc.df :
	if grep "^[.][ ]*[BFRS]R" $< >/dev/null 2>&1 ;\
	then	$(RFCREF) $< > $@.temp ;\
	else	cp $< $@.temp ;\
	fi
	if grep "^[.][ ]*DR" $< >/dev/null 2>&1 ;\
	then	$(IDREF) $@.temp > $@ ;\
	else	cp $@.temp $@ ;\
	fi
	rm $@.temp

.df.chem :
	if grep "^[.][ ]*begin[ ]*dformat" $< >/dev/null 2>&1 ;\
	then	$(DFORMAT) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.chem.eqn :
	if grep "^[.][ ]*cstart" $< >/dev/null 2>&1 ;\
	then	$(CHEM) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.eqn.grap :
	if grep "^[.][ ]*E[QN]" $< >/dev/null 2>&1 ;\
	then	$(EQN) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.eqn.ngrap :
	if grep "^[.][ ]*E[QN]" $< >/dev/null 2>&1 ;\
	then	$(NEQN) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.ngrap.npic .grap.pic :
	if grep "^[.][ ]*G[12]" $< >/dev/null 2>&1 ;\
	then	$(GRAP) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.pic.tbl :
	if grep "^[.][ ]*P[SFE]" $< >/dev/null 2>&1 ;\
	then	$(PIC) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.npic.ntbl :
	if grep "^[.][ ]*P[SFE]" $< >/dev/null 2>&1 ;\
	then	$(NPIC) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.tbl.abnf :
	if grep "^[.][ ]*T[SH&E]" $< >/dev/null 2>&1 ;\
	then	$(TBL) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.ntbl.nabnf :
	if grep "^[.][ ]*T[SH&E]" $< >/dev/null 2>&1 ;\
	then	$(NTBL) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.abnf.troff .nabnf.nroff :
	if grep "^[.][ ]*A[SE]" $< >/dev/null 2>&1 ;\
	then	$(ABNFF) $< > $@ ;\
	else	cp $< $@ ;\
	fi

.nroff.ms .troff.tms :
	if grep "^[.][ ]*so" $< >/dev/null 2>&1 ;\
	then	$(SOELIM) $< > $@ ;\
	else	cat $(MACDIR)/tmac.rfc $< > $@ ;\
	fi

.nroff.txt :
	$(NROFF) -T$(ASCII) -rN$(RFC) $(ARGS) $(MACROS) $< $(NPOST) | awk -f repaginate.awk > $@

.ms.txt :
	$(NROFF) -T$(ASCII) -rN$(RFC) $(ARGS) $< $(NPOST) | awk -f repaginate.awk > $@

.troff.ps :
	$(TROFF) -T$(POSTSCRIPT) -rN$(RFC) $(LETTER) $(ARGS) $(MACROS) $< $(TPOST) | awk -f psrenumber.awk > $@.temp
	sed -e "s/%%EOF/%!Description: PostScript ANSI A version of $(BASE)\n%%EOF/" < $@.temp > $@
	rm -f $@.temp

.tms.ps :
	$(TROFF) -T$(POSTSCRIPT) -rN$(RFC) $(LETTER) $(ARGS) $< $(TPOST) | awk -f psrenumber.awk > $@.temp
	sed -e "s/%%EOF/%!Description: PostScript ANSI A version of $(BASE)\n%%EOF/" < $@.temp > $@
	rm -f $@.temp

.ps.pdf :
	$(PS2PDF) -sPAPERSIZE=letter $< $@
	sed -e "s,\(^/Creator\),/Subject(Description: PDF ANSI A version of $(BASE))\n\1," < $@ > $@.temp
	$(PDFOPT) $@.temp $@
	rm -f $@.temp

.troff.psa4 :
	$(TROFF) -T$(POSTSCRIPT) -rN$(RFC) $(A4) -rX21c -rZ29.7c -rR2c -rV0.712c $(ARGS) $(MACROS) $< $(TPOST) | awk -f psrenumber.awk > $@.temp
	sed -e "s/%%EOF/%!Description: PostScript ISO A4 version of $(BASE)\n%%EOF/" < $@.temp > $@
	rm -f $@.temp

.tms.psa4 :
	$(TROFF) -T$(POSTSCRIPT) -rN$(RFC) $(A4) -rX21c -rZ29.7c -rR2c -rV0.712c $(ARGS) $< $(TPOST) | awk -f psrenumber.awk > $@.temp
	sed -e "s/%%EOF/%!Description: PostScript ANSI A version of $(BASE)\n%%EOF/" < $@.temp > $@
	rm -f $@.temp

.psa4.pdfa4 :
	$(PS2PDF) -sPAPERSIZE=a4 $< $@
	sed -e "s,\(^/Creator\),/Subject(Description: PDF ISO A4 version of $(BASE))\n\1," < $@ > $@.temp
	$(PDFOPT) $@.temp $@
	rm -f $@.temp

.txt.html :
	echo '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">' > $@
	echo '<HTML> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> ' >> $@
	echo '<META HTTP-EQUIV="Content-Language" CONTENT="en">' >> $@
	echo '<TITLE> $(BASE) </TITLE> <BODY> <!-- Description: HTML version of $(BASE)' >> $@
	echo ' --> <PRE>' >> $@
	sed -f htmlize.sed < $< >> $@
	echo '</PRE>' >> $@
	echo '<p>' >> $@
	echo '<a href="http://validator.w3.org/check?uri=referer"><img src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!" height="31" width="88"></a>' >> $@
	echo '</p>' >> $@
	echo '</BODY> </HTML>' >> $@

rfc : $(BASE).txt $(BASE).ps $(BASE).pdf $(BASE).psa4 $(BASE).pdfa4 $(BASE).html diffs nits
	if test $(RFC) -eq 0 ;\
	then	for suf in txt ps pdf psa4 pdfa4 html ;\
		do	cp $(BASE).$$suf $@XXXX.$$suf ;\
		done ;\
	fi
	if test $(RFC) -gt 0 ;\
	then	for suf in txt ps pdf psa4 pdfa4 html ;\
		do	cp $(BASE).$$suf $@$(RFC).$$suf ;\
		done ;\
	fi

nits : $(BASE).txt
	if test $(RFC) -lt 0 ; then $(IDNITS) $? ; fi

diffs : $(BASE).diffs

$(BASE).diffs : $(BASE).txt
	if test $(VERSION) -gt 0 -a -f $(OLD).txt ;\
	then	$(RFCDIFF) $(OLD).txt $(BASE).txt > $@ ;\
	fi

diffs : $(BASE).diffs

$(BASE).txt $(BASE).ps $(BASE).psa4 : $(MAKEFILES)
$(BASE).txt $(OLD).txt : repaginate.awk
$(BASE).ps $(BASE).psa4 $(OLD).ps $(OLD).psa4 : psrenumber.awk
$(BASE).html : $(BASE).txt htmlize.sed
$(BASE).pdf : $(BASE).ps
$(BASE).pdfa4 : $(BASE).psa4
$(OLD).html : $(OLD).txt htmlize.sed
$(OLD).pdf : $(OLD).ps
$(OLD).pdfa4 : $(OLD).psa4