#       bsd.sgml.mk - 8 Sep 1995 John Fieber
#       This file is in the public domain.
#
#	$Id: bsd.sgml.mk,v 1.21 1997/11/09 14:37:40 wosch Exp $
#
# The include file <bsd.sgml.mk> handles installing sgml documents.
#
#
# +++ variables +++
#
# DISTRIBUTION	Name of distribution. [doc]
#
# FORMATS 	Indicates which output formats will be generated
#               (ascii, html, koi8-r, latex, latin1, ps, roff). 
#		[html latin1 ascii]
#
# LPR		Printer command. [lpr]
#
# NOSGMLCOMPRESS	If you do not want SGML formatted documents
#		be compressed when they are installed. [yes]
#
# SCOMPRESS_CMD	Program to compress SGML formatted documents. Output is to
#		stdout. [${COMPRESS_CMD}]
#
# SGMLFLAGS	Flags to sgmlfmt. [${SGMLOPTS}]
#
# SGMLFMT	Format sgml files command. [sgmlfmt]
#
# Variables DOCOWN, DOCGRP, DOCMODE, DOCDIR, DESTDIR, DISTDIR are
# set by other Makefiles (e.g. bsd.own.mk)
#
#
# +++ targets +++
#
#	all:
#		Converts sgml files to the specified output format
#		(see ${FORMATS}).
#
#	distribute:
# 		This is a variant of install, which will
# 		put the stuff into the right "distribution".
#
#	install:
#		Install formated output.
#
#	print:
#		Print formated output.
#
#
# bsd.obj.mk: clean, cleandir, obj
#


.if exists(${.CURDIR}/../Makefile.inc)
.include "${.CURDIR}/../Makefile.inc"
.endif

# FORMATS indicates which output formats will be generated.  See
# the sgmlfmt(1) man page for a list of valid formats.  
# If FORMATS is empty, nothing will be built or installed.
# Use SGMLOPTS to pass extra flags to sgmlfmt(1).

FORMATS?=       html latin1 ascii
SGMLFLAGS+=	${SGMLOPTS}

VOLUME?=	${.CURDIR:T}
DOC?=		${.CURDIR:T}
SRCDIR?=	${.CURDIR}
DISTRIBUTION?=	doc
SGMLFMT?=	sgmlfmt
LPR?=		lpr

NOSGMLCOMPRESS?=	yes
SCOMPRESS_CMD?=	${COMPRESS_CMD}
.if !empty(NOSGMLCOMPRESS)
SCOMPRESS_EXT=
.else
SCOMPRESS_EXT?=	${COMPRESS_EXT}
.endif

_docs=
_strip=
.for _f in ${FORMATS}
__f=${_f}
.if ${__f} == "html"
_docs+=	${DOC}.${_f}
.else
_docs+=	${DOC}.${_f}${SCOMPRESS_EXT}
.if ${__f} == "ascii" || ${__f} == "latin1" || ${__f} == "koi8-r"
_strip+= ${DOC}.${_f}
CLEANFILES+=${DOC}.${_f}.bak
.endif
.endif
.endfor

strip: ${_strip}
.if !empty(_strip)
	perl -i.bak -npe 's/.\010//g' ${_strip}
.endif


.MAIN:	all
all:	${_docs}

# If FORMATS is empty, do nothing
.if empty(FORMATS)
${DOC}. install- print- clean-:
.endif

install:	beforeinstall realinstall afterinstall

realinstall: ${FORMATS:S/^/install-/g}

.if !target(print)
print: ${FORMATS:S/^/print-/g}
.endif

spell: ${SRCS}
	(cd ${.CURDIR};  spell ${SRCS} ) | sort | \
		comm -23 - ${.CURDIR}/spell.ok > ${DOC}.spell

.if !target(distribute)
distribute:
.for dist in ${DISTRIBUTION}
	cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${dist} SHARED=copies
.endfor
.endif

# For each FORMATS type, define a build, install, clean and print target.
# Note that there is special case handling for html targets
# because the number of files generated is generally not possible
# to predict outside of sgmlfmt(1).

.for _XFORMAT in ${FORMATS}

# XXX This doesn't work:
#    .if ${_FORMAT} == "foobar"
# but defining another variable does:  (?!?!)

_FORMAT = ${_XFORMAT}

.if !target(print-${_FORMAT})
.if ${_FORMAT} == "html"
print-${_FORMAT}:

.else
print-${_FORMAT}: ${DOC}.${_FORMAT}${SCOMPRESS_EXT}
.if !empty(NOSGMLCOMPRESS)
	${LPR} ${.ALLSRC}
.else
	${SCOMPRESS_CMD} -d ${.ALLSRC} | ${LPR}
.endif

.endif
.endif

.if !target(install-${_FORMAT})
.if ${_FORMAT} == "html"
install-${_FORMAT}:
	${INSTALL} ${COPY} -o ${DOCOWN} -g ${DOCGRP} -m ${DOCMODE} \
		${DOC}*.html ${DESTDIR}${DOCDIR}/${VOLUME}
	if [ -f ${.OBJDIR}/${DOC}.ln ]; then \
		(cd ${DESTDIR}${DOCDIR}/${VOLUME}; \
		sh ${.OBJDIR}/${DOC}.ln); \
	fi

.else
install-${_FORMAT}:
	${INSTALL} ${COPY} -o ${DOCOWN} -g ${DOCGRP} -m ${DOCMODE} \
		${DOC}.${.TARGET:S/install-//}${SCOMPRESS_EXT} \
		${DESTDIR}${DOCDIR}/${VOLUME}
.endif
.endif

.if !target(${DOC}.${_FORMAT})
.if ${_FORMAT} != "html" && empty(NOSGMLCOMPRESS)
${DOC}.${_FORMAT}${SCOMPRESS_EXT}: ${SRCS}
	${SGMLFMT} -f ${_XFORMAT} ${SGMLFLAGS} ${.CURDIR}/${DOC}.sgml
	${SCOMPRESS_CMD} ${DOC}.${_XFORMAT} > ${.TARGET}
.else
${DOC}.${_FORMAT}: ${SRCS}
	${SGMLFMT} -f ${_XFORMAT} ${SGMLFLAGS} ${.CURDIR}/${DOC}.sgml
.endif
.endif

.if ${_FORMAT} == "html"
CLEANFILES+= ${DOC}*.html ${DOC}.ln
.else
.if empty(NOSGMLCOMPRESS)
CLEANFILES+= ${DOC}.${_XFORMAT}${SCOMPRESS_EXT} 
.endif
CLEANFILES+= ${DOC}.${_XFORMAT}
.endif

.endfor


.for __target in beforeinstall afterinstall maninstall depend _SUBDIR
.if !target(${__target})
${__target}:
.endif
.endfor

.include <bsd.dep.mk>
.include <bsd.obj.mk>