#####################################################################
### 
### Makefile for Singular documentation 
###
#####################################################################
SHELL=/bin/sh

####################################################################
##
## Configuration
##

## directory where info files are installed
prefix		= @prefix@
infodir		= ${prefix}/info
bindir		= @bindir@
htmldir         = ${prefix}/html

##
## needed programs
##
@SET_MAKE@
CC		= @CC@
INSTALL		= ../install-sh -c
INSTALL_PROGRAM	= ${INSTALL}
INSTALL_DATA	= ${INSTALL} -m 644
MKINSTALLDIRS   = ../mkinstalldirs

PERL5		= @PERL5@
TEX		= tex
MAKEINFO	= @MAKEINFO@
TEXI2DVI	= @TEXI2DVI@
TEXINDEX	= @TEXINDEX@
TEXI2HTML	= @TEXI2HTML@
DVIPS		= dvips
VERBOSE         = 1 # override this with make VERBOSE=2

# d2t stuff
SINGULAR	= @SINGULAR@
SINGULAR_LIB_DIR= ../Singular/LIB
LIBPARSE	= ${bindir}/libparse
D2T_SUBDIR      = ./d2t_singular
CHKSUM_DB       = ${D2T_SUBDIR}/chksum.db
DOC2TEX		= ${PERL5} ./doc2tex.pl -subdir ${D2T_SUBDIR} \
                  -Singular ${SINGULAR} -verbose ${VERBOSE} -make ${MAKE}
PL2DOC		= ${PERL5} ./pl2doc.pl -db  ${CHKSUM_DB}

# t2h stuff
TMP_DIR		= @TMP_DIR@
HTML_SUBDIR     = html
TEXI2HTML_INIT  = t2h_singular.init
ifeq ($(VERBOSE),0)
T2H_VERBOSE	= -no_verbose
else
T2H_VERBOSE     = -verbose
endif
TEXI2HTML_OPTS  = -init_file ${TEXI2HTML_INIT} @TEXI2HTML_OPTS@ \
	          -short_extn -l2h_tmp ${TMP_DIR} -subdir ${HTML_SUBDIR} \
                  ${T2H_VERBOSE}
HTML_MANUAL_PREFIX = sing
HTML_TUTOR_PREFIX  = tut
HTML_MANUAL_TOP    = index.htm
HTML_TUTOR_TOP     = tutor.htm
##
## End configuration dependend stuff
#################################################################

###########################################################
# File sets
#
TEX_FILES	= copyright.tex
DOC2TEX_FILES	= \
		examples.tex general.tex math.tex reference.tex \
		start.tex types.tex pdata.tex tricks.tex platform.tex

MANUAL_FILES	= ${TEX_FILES} ${DOC2TEX_FILES}
TUTOR_FILES	= \
		tutor.tex examples.tex start.tex copyright.tex

IMAGES_UU	:= $(wildcard images/*.uu)
IMAGES     := $(IMAGES_UU:images/%.uu=%)
IMAGES_SRC := $(IMAGES:%=images/%)
IMAGES_HTML := $(IMAGES:%=${HTML_SUBDIR}/%)

# prepend bindir to path so that programs from there are taken first
export PATH := "${bindir}:${PATH}"

###########################################################
# top targets
#

.PHONY: info dvi ps html

# default target
all: info dvi html singular.idx

# info stuff
info: singular.hlp 

singular.hlp: ${MANUAL_FILES} singular.tex
	- ${MAKEINFO} --no-split singular.tex

# dvi stuff
dvi: manual.dvi usercard.dvi

singular.dvi: ${MANUAL_FILES} singular.tex 
	${TEXI2DVI} singular.tex 

manual.dvi: ${MANUAL_FILES} manual.tex
	${TEXI2DVI} manual.tex

tutor.dvi: ${TUTOR_FILES} 
	${TEXI2DVI} tutor.tex

usercard.dvi: usercard.tex singcard.tex
	${TEX} $<

# postscript stuff
ps: singular.ps usercard.ps

usercard.ps: usercard.dvi
	${DVIPS} -t landscape -t a4 $< -o $@

%.ps: %.dvi
	${DVIPS} $< -o $@

###########################################################
# texinfo targets
#
manual.tex:  ${MANUAL_FILES} doc2tex.pl ${SINGULAR} singular.doc
	${DOC2TEX} -no_fun -o manual.tex singular.doc

singular.tex: ${MANUAL_FILES} doc2tex.pl ${LIB_TEX_FILES} ${SINGULAR} ${LIBPARSE} singular.doc
	${DOC2TEX} -o singular.tex singular.doc

#pattern rule for tex files
%_noEx.tex : %.doc doc2tex.pl ${SINGULAR}
	${DOC2TEX} -o $@ -no_ex $<

%.tex: %.doc doc2tex.pl ${SINGULAR} 
	${DOC2TEX} -o $@ $<

# pattern rules for lib docus
${D2T_SUBDIR}/%_lib.pl : ${SINGULAR_LIB_DIR}/%.lib ${LIBPARSE}
	test -d ${D2T_SUBDIR} || mkdir ${D2T_SUBDIR}
	${LIBPARSE} -i $< > $@

%_noFun.doc : %.pl pl2doc.pl
	${PL2DOC}  -no_fun -o $@  $<

%.doc : %.pl pl2doc.pl
	${PL2DOC} -o $@ $<

# do not delete intermediate .pl and .doc files
.PRECIOUS: %.doc %_noFun.doc ${D2T_SUBDIR}/%_lib.pl

# index file for help
singular.idx: singular.hlp ${HTML_SUBDIR}/${HTML_MANUAL_PREFIX}_cp.idx ${CHKSUM_DB} doc2idx.pl
	${PERL5} doc2idx.pl singular.hlp ${HTML_SUBDIR}/${HTML_MANUAL_PREFIX}_cp.idx ${CHKSUM_DB} > singular.idx

# targets which produce stand-alone documents
COPYING: copyright.tex
	${MAKEINFO} --no-header -o COPYING copyright.tex 

###########################################################
# html targets
#
html: ${HTML_SUBDIR}/${HTML_MANUAL_TOP} ${IMAGES_HTML}
${HTML_SUBDIR}/${HTML_MANUAL_TOP}: ${TEXI2HTML_INIT} ${TEXI2HTML} singular.tex
	${PERL5} ${TEXI2HTML} ${TEXI2HTML_OPTS} -prefix ${HTML_MANUAL_PREFIX} \
        -top_file ${HTML_MANUAL_TOP} singular.tex

# html stuff
html_tutor: ${HTML_SUBDIR}/${HTML_TUTOR_TOP} ${IMAGES_HTML}
${HTML_SUBDIR}/${HTML_TUTOR_TOP}: ${TEXI2HTML_INIT} ${TEXI2HTML} tutor.tex
	${PERL5} ${TEXI2HTML} ${TEXI2HTML_OPTS} -prefix ${HTML_TUTOR_PREFIX} \
        -top_file ${HTML_TUTOR_TOP} tutor.tex

${HTML_SUBDIR}/${HTML_MANUAL_PREFIX}_cp.idx: ${HTML_SUBDIR}/${HTML_MANUAL_TOP}

# pattern rules for images
images/%.gif : images/%.gif.uu
	uudecode $< -o $@

images/%.jpg : images/%.jpg.uu
	uudecode $< -o $@

images/%.xbm : images/%.xbm.uu
	uudecode $< -o $@

${IMAGES_HTML} : ${IMAGES_SRC}
	test -d ${HTML_SUBDIR} || mkdir ${HTML_SUBDIR}
	cp ${IMAGES_SRC} ${HTML_SUBDIR}





###########################################################
# misc targets
#
install: singular.hlp html/index.htm singular.idx
	${MKINSTALLDIRS} ${infodir}
	${INSTALL_DATA} singular.hlp ${infodir}
	test -L ${htmldir} || (rm -rf ${htmldir}; ln -s `pwd`/${HTML_DIR} ${htmldir})

uninstall: 
	rm -f ${infodir}/singular.hlp
	- rmdir ${infodir}

clean: mostlyclean
	/bin/rm -rf singular.tex manual.tex  ${HTML_DIR} ${D2T_SUBDIR}

mostlyclean: 
	/bin/rm -f .singular_hist doe.tmp dump.ascii example.mp example.txt
	/bin/rm -f save_i test.ascii test.mp
	/bin/rm -f Z* *.tst *.pag *.dir *.lst *.log *.aux *.cp *.cps
	/bin/rm -f *.fn *.fns *.ky *.kys *.log *.pg *.pgs *.toc *.tp
	/bin/rm -f *.tps *.vr *.vrs *.dvi *.ps
	/bin/rm -f singular.hlp manual.hlp  ${DOC2TEX_FILES} singular.idx
	/bin/rm -f ${HTML_SUBDIR}/${HTML_MANUAL_TOP} ${HTML_SUBDIR}/${HTML_TUTOR_TOP}

distclean: clean
	/bin/rm -f Makefile

maintainer-clean: distclean

${SINGULAR}:
#	cd ..; ${MAKE} ${SINGULAR}

Makefile: Makefile.in
	cd ..; ${MAKE} doc/Makefile

html-done: ${MANUAL_FILES}