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|
#!/bin/bash
shopt -s nullglob extglob
#----------------------------------------------------------------------
#
# TIP: It is better to think of a visual book as a set of spreads
# rather than a set of pages, hence the focus on spreads in the
# code below.
# The main unit of a "visual" book is a spread, it's the thing
# you see when you hold the book open, and the main workflow
# when building a book is creating spreads and ordering them so
# a single page is almost never treated as an independent unit.
# TIP: it is not recommended to use too many templates, the layout
# should be and feel structured and this structure should not be
# too complex for the average reader to get comfortable in.
#
#
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#
# Template structure:
# $TEMPLATE_DIR/
# spread.tex
# imagepage.tex
# textpage.tex
# ...
# $CAPTION_DIR/
# <image>.txt
# image caption.
# this is separated to decouple caption writing from the
# changes to the layout/sequencing and this drastically
# simplify the work with writers.
# For this reason this takes priority over local captions (XXX revise).
# ...
# $SPREADS_DIR/
# $spread/
# tweaks.tex
# template tweaks.
# loaded before the templates are handled.
# layout.tex
# manual layout of spread.
# if given rest of directory contents are
# ignored.
# fields:
# ${IMAGE0}
# replaced with image path
# ${CAPTION0}
# replaced with content of caption file if found
# and empty otherwise.
# ${TEXT0}
# replaced with the content of a text file if
# found and empty otherwise.
# ...
# NOTE: if images are included, hi-res source
# substitution is not done here.
# NOTE: fields are ordered and matched according to their
# position and not their number, e.g. in the following
# sequence:
# IMAGE, IMAGE10, IMAGE20, ..,
# CAPTION2, CAPTION7, CAPTION12, ..
# IMAGE10 will be filled with the second found image
# and CAPTION7 will be filled with the second found
# caption.
# <spread-template-name>.tpl
# indicates the spread template to use.
# if given the rest of the .tex files in
# directory are ignored.
# resolves to:
# templates/<spread-template-name>.tex
# fields:
# ${IMAGE0}
# ${CAPTION0}
# ${TEXT0}
# ...
# imagepage.tex
# image page template.
# fields:
# ${IMAGE}
# ${CAPTION}
# ${TEXT0}
# ...
# textpage.tex
# text page template.
# fields:
# ${TEXT}
# ...
# <spread-template-name>-imagepage.tpl
# <spread-template-name>-textpage.tpl
# indicates the image/text page template to use.
# ignored if explicit templates are given.
# fields:
# ${IMAGE}
# ${CAPTION}
# ${TEXT}
# ...
# 00-<image>.png
# image.
# if $IMAGE_HIRES_DIR is set then this will
# resolve to:
# $IMAGE_HIRES_DIR/<image>
# supported formats:
# .jpeg, .png, .pdf, .svg, .eps
# (see $IMAGE_FORMATS)
# 00-<image>.txt
# local image caption text.
# NOTE: this must be named the same as the image.
# 01-<text>.txt
# text.
# ...
# ...
#
#
# Env variables:
# ANOTATE_IMAGE_PATHS=
# TEXT_FORMATS=<ext>|..
# IMAGE_FORMATS=<ext>|..
# SPREADS_DIR=<path>
# IMAGE_HIRES_DIR=<path>
# sets the path to which the hi-res images are resolved.
# CAPTION_DIR=<path>
# TEMPLATE_DIR=<path>
# EMPTY_PAGE=<name>
# TEXT_PAGE=<name>
# IMAGE_PAGE=<name>
# IMAGE_SPREAD=<array>
#
#
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#
# XXX
#
#
#
#----------------------------------------------------------------------
# load config...
CONFIG=${CONFIG:=$(basename ${0%.*}).cfg}
# prepend CFG_ to settings in config...
# NOTE: this is done to prevent them overriding the environment...
[ -e $CONFIG ] \
&& eval $(cat "$CONFIG" \
| sed -e 's/^\(\s*\)\([A-Z_]\+=\)/\1CFG_\2/')
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# defaults...
#
# NOTE: all of these options can be either set in the $CONFIG file or
# set in the script env.
# NOTE: env takes priority over $CONFIG
# if set add pdf annotations of paths to each image...
ANOTATE_IMAGE_PATHS=${ANOTATE_IMAGE_PATHS:=$CFG_ANOTATE_IMAGE_PATHS}
ANOTATE_IMAGE_PATHS=${ANOTATE_IMAGE_PATHS:=}
# supported formats/extensions...
TEXT_FORMATS=${TEXT_FORMATS:=$CFG_TEXT_FORMATS}
TEXT_FORMATS=${TEXT_FORMATS:=txt}
IMAGE_FORMATS=${IMAGE_FORMATS:=$CFG_IMAGE_FORMATS}
IMAGE_FORMATS=${IMAGE_FORMATS:=jpeg|jpg|png|pdf|svg|eps}
SPREADS_DIR=${SPREADS_DIR:=$CFG_SPREADS_DIR}
SPREADS_DIR=${SPREADS_DIR:=spreads/}
IMAGE_HIRES_DIR=${IMAGE_HIRES_DIR:=$CFG_IMAGE_HIRES_DIR}
IMAGE_HIRES_DIR=${IMAGE_HIRES_DIR:=}
CAPTION_DIR=${CAPTION_DIR:=$CFG_CAPTION_DIR}
CAPTION_DIR=${CAPTION_DIR:=captions/}
TEMPLATE_DIR=${TEMPLATE_DIR:=$CFG_TEMPLATE_DIR}
TEMPLATE_DIR=${TEMPLATE_DIR:=templates/}
# Default templates
# NOTE: if a template is not found we will try and build a spread from
# page components...
# page templates...
EMPTY_PAGE=${EMPTY_PAGE:=$CFG_EMPTY_PAGE}
EMPTY_PAGE=${EMPTY_PAGE:=emptypage}
TEXT_PAGE=${TEXT_PAGE:=$CFG_TEXT_PAGE}
TEXT_PAGE=${TEXT_PAGE:=textpage}
IMAGE_PAGE=${IMAGE_PAGE:=$CFG_IMAGE_PAGE}
IMAGE_PAGE=${IMAGE_PAGE:=imagepage}
# dynamic spread templates...
# NOTE: the index here corresponds to the number of images found in a
# spread directory...
if [ ${#IMAGE_SPREAD[@]} = 0 ] ; then
if ! [ ${#CFG_IMAGE_SPREAD[@]} = 0 ] ; then
IMAGE_SPREAD=()
for i in ${!CFG_IMAGE_SPREAD[@]} ; do
IMAGE_SPREAD[$i]=${CFG_IMAGE_SPREAD[$i]}
done
else
IMAGE_SPREAD=(
[0]=text-spread
[2]=image-image
)
fi
fi
#----------------------------------------------------------------------
printhelp(){
echo "Usage: `basename $0` [ARGUMENTS] [PATH]"
echo " `basename $0` [ARGUMENTS] PATH INDEX"
echo " `basename $0` [ARGUMENTS] PATH FROM COUNT"
echo
echo "Generate LaTeX layout from directory structure."
echo
echo "Arguments:"
echo " -h --help - print this help and exit."
echo " -c PATH - load configuration from PATH."
echo " -a --annotate"
echo " - add annotations with image paths to pages."
echo " --templates PATH"
echo " - path to search for templates (default: $TEMPLATE_DIR)."
echo " --single-image-tpl NAME"
echo " - single image default template (default: ${IMAGE_SPREAD[1]})."
echo " --double-image-tpl NAME"
echo " - double image default template (default: ${IMAGE_SPREAD[2]})."
echo " --text-spread-tpl NAME"
echo " - text spread default template (default: ${IMAGE_SPREAD[0]})."
echo " --captions PATH"
echo " - path to search for captions (default: $CAPTION_DIR)."
echo
echo "Parameters:"
echo " PATH - path to root pages directory (default: $SPREADS_DIR)"
echo " INDEX - index of spread to generate"
echo " FROM - spread to start from"
echo " COUNT - number of spreads to generate"
echo
echo "Environment:"
echo " \$IMAGE_HIRES_DIR "
echo " - source directory for replacement hi-res images."
echo " \$ANOTATE_IMAGE_PATHS "
echo " - if true add image paths in anotations."
echo " \$CONFIG - sets the config file name (default: $CONFIG)"
echo " \$TEXT_FORMATS "
echo " - list of file extensions treated as text (default: $TEXT_FORMATS)."
echo " \$IMAGE_FORMATS "
echo " - list of file extensions treated as images"
echo " (default: $IMAGE_FORMATS)."
echo
echo "Configuration defaults can be stored in a config file: $CONFIG"
echo
echo "NOTE: COUNT is relevant iff FROM is given, otherwise all available "
echo " spreads are generated."
echo
echo "Examples:"
echo " $ `basename $0` ./pages > pages.tex"
echo " - generate a layout fron the contents of ./pages"
echo
echo " $ IMAGE_HIRES_DIR=images/hi-res `basename $0` ./pages"
echo " - generate a layout fron the contents of ./pages and "
echo " replaceing local images with images in ./images/hi-res"
echo
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# handle arguments...
while true ; do
case $1 in
-h|--help)
printhelp
exit
;;
-a|--annotate)
ANOTATE_IMAGE_PATHS=1
shift
;;
-c)
$CONFIG="$2"
[ -e "$CONFIG" ] \
&& source "$CONFIG"
shift 2
;;
--templates)
TEMPLATE_DIR=$2
shift 2
;;
--single-image-tpl)
IMAGE_SPREAD[1]=$2
shift 2
;;
--double-image-tpl)
IMAGE_SPREAD[2]=$2
shift 2
;;
--text-spread-tpl)
IMAGE_SPREAD[0]=$2
shift 2
;;
--captions)
CAPTION_DIR=$2
shift 2
;;
# handle unknown options...
-*|--*)
echo "Error: unknown option \"$1\""
exit
;;
*)
break
;;
esac
done
if [ -z $1 ] ; then
SPREADS_DIR=spreads/
else
SPREADS_DIR=$1/
fi
# calculate spread index range...
# XXX add support for negative indexing...
FROM=$2
COUNT=$( [ -z $3 ] && echo 1 || echo $3 )
STOP=$(( FROM + COUNT ))
# prep format regexps...
TEXT_FORMATS='.*\.('$TEXT_FORMATS')$'
IMAGE_FORMATS='.*\.('$IMAGE_FORMATS')$'
#----------------------------------------------------------------------
# Get image caption...
# usage:
# getCaption SPREAD IMAGE
getCaption(){
local spread=$1
local name=`basename "${2%.*}"`
local captions=(
"$CAPTION_DIR/${name}.txt"
"${spread}/${name}.txt"
)
local caption
for caption in "${captions[@]}" ; do
if [ -e "${caption}" ] ; then
echo ${caption}
return
fi
done
}
# Read/print caption text...
# usage:
# readCaption PATH
readCaption(){
[ -z "$1" ] \
&& return 1
cat "$1" \
| sed -e 's/\\/\\\\\\/g'
}
# Get template...
# usage:
# getTemplate SPREAD TYPE
#
getTemplate(){
local SPREAD=$1
local TYPE=$2
local TEMPLATE=($SPREAD/*-$TYPE.tex)
if [ -z $TEMPLATE ] ; then
TEMPLATE=($SPREAD/*-$TYPE.tpl)
if ! [ -z $TEMPLATE ] ; then
TEMPLATE=${TEMPLATE/$SPREAD\//}
TEMPLATE=${TEMPLATE/[0-9]-/}
TEMPLATE="$TEMPLATE_DIR/${TEMPLATE[0]%-${TYPE}.*}.tex"
fi
fi
if [ -z $TEMPLATE ] ; then
TEMPLATE="$TEMPLATE_DIR/${TYPE}.tex"
fi
if ! [ -e $TEMPLATE ] ; then
return
fi
echo $TEMPLATE
}
# Get template slots (cached)...
# usage:
# templateSlots TEMPLATE
declare -A TEMPLATE_INDEX
templateSlots(){
# cache the vars...
#if [ ${TEMPLATE_INDEX[$1]+_} ] ; then
if [ -z ${TEMPLATE_INDEX[$1]} ] ; then
TEMPLATE_INDEX[$1]=$(cat "$1" \
| grep -o '\${[A-Z0-9_]\+}' \
| sed 's/\${\(.*\)}/\1/g' \
| sort -V)
fi
echo ${TEMPLATE_INDEX[$1]}
}
# Populate template image/text slots
# usage:
# populateTemplate SPREAD TEMPLATE ITEMS...
#
populateTemplate(){
local spread="$1"
local tpl="$2"
[ -e "$tpl" ] \
|| return 1
local slots=( $(templateSlots "${tpl}") )
local text=$(cat "${tpl}")
# items/img/txt...
shift 2
local items=("$@")
if [ ${#items[@]} = 0 ] ; then
items=( $spread/* )
fi
local img=()
local txt=()
local elem
for elem in "${items[@]}" ; do
if [[ "$elem" =~ $IMAGE_FORMATS ]] ; then
img+=("$elem")
elif [[ "$elem" =~ $TEXT_FORMATS ]] ; then
txt+=("$elem")
fi
done
local var
local val
local index=()
local captions=()
local name
# pass 1: images...
# NOTE: we are doing this in three passes as caption and image slots
# can be included in the template in any order but the captions
# need all the images to be fully populated/indexed (passes 1
# and 2), and text is done as a separate pass to prevent it
# from competing with captions.
local i=0
for var in ${slots[@]} ; do
name=${var//[0-9]/}
if ! [ ${name} = "IMAGE" ] ; then
continue
fi
val=${img[$i]}
# index images for caption retrieval...
index[${var/$name/}]="$val"
# warn if no image found for slot...
if [ -z ${val} ] ; then
echo %
{
echo "% WARNING: image #${i} requested but not found"
echo "% in: ${tpl}"
echo "% by: ${spread}"
} | tee >(cat >&2)
echo %
fi
i=$(( i + 1 ))
val=${val//\//\\/}
text=$(echo -e "${text}" | \
sed "s/\${${var}}/${val%.*}/g")
done
# pass 2: captions...
for var in ${slots[@]} ; do
name=${var//[0-9]/}
if ! [ ${name} = "CAPTION" ] ; then
continue
fi
# get global caption...
val=$(getCaption "$spread" "${index[${var/$name/}]}" "${txt[@]}")
if [ -n "${val}" ] ; then
# clear the used texts... (XXX test)
for i in "${!txt[@]}" ; do
[ "$val" = "${txt[$i]}" ] \
&& unset "txt[$i]"
done
val=$(readCaption "${val}")
fi
text=$(echo -e "${text}" | \
sed "s/\${${var}}/${val}/g")
done
# pass 3: texts...
for var in ${slots[@]} ; do
name=${var//[0-9]/}
if [ ${name} = "CAPTION" ] || [ ${name} = "IMAGE" ] ; then
continue
fi
val=
for i in ${!txt[@]} ; do
# NOTE: we do not care as much if not text is found...
val=${txt[$i]}
unset "txt[$i]"
# we only need the first text...
break
done
val=${val//\//\\/}
text=$(echo -e "${text}" | \
sed "s/\${${var}}/${val}/g")
done
# print out the filled template...
echo % template: $tpl
echo -e "${text}"
return 0
}
# Handle/print spread...
# usage:
# handleSpread SPREAD
#
# closure: $IMAGE_HIRES_DIR, $IMAGE_SPREAD
handleSpread(){
local spread="$1"
# skip non-spreads...
[ -d "$spread" ] \
|| return 1
# auto layout / templates...
# NOTE: to use a specific template just `touch <template-name>.tpl`
# in the spread directory...
# layout tweaks...
local tweaks=($spread/*tweak.tex)
if ! [ -z ${tweaks} ] ; then
echo "% tweaks: ${tweaks[0]}"
cat ${tweaks[0]}
fi
# collect images and text...
# NOTE: we are filling these manually to support configurable
# image/text patterns...
local img=()
local txt=()
local items=()
for elem in "$spread"/* ; do
if [[ "$elem" =~ $IMAGE_FORMATS ]] ; then
img+=("$elem")
items+=("$elem")
elif [[ "$elem" =~ $TEXT_FORMATS ]] ; then
txt+=("$elem")
items+=("$elem")
fi
done
# get hi-res image paths...
if ! [ -z $IMAGE_HIRES_DIR ] ; then
local C=0
for image in "${img[@]}" ; do
# skip non-images...
local new="$IMAGE_HIRES_DIR/`basename ${image/[0-9]-/}`"
# ignore file ext for availability test...
# NOTE: the first match may be an unsupported format...
new="${new%.*}"
new=($new.*)
if [ -e "${new[0]}" ] ; then
img[$C]=${new[0]}
else
echo %
echo "% WARNING: hi-res image not found for: \"${image}\" -> \"${new}\"" \
| tee >(cat >&2)
echo %
fi
C=$(( C + 1 ))
done
fi
# manual layout...
local template
local layout=( $spread/*layout.tex )
if ! [ -z $layout ] ; then
template=${layout[0]}
# templates and partial templates...
else
local template=( $spread/*.tpl )
# skip page template refs: *-imagepage.tpl / *-textpage.tpl
# XXX this will also eat 0-imagepage.tpl / 20-textpage.tpl -- do a better pattern...
if ! [ -z $template ] ; then
template=(`ls "$spread/"*.tpl \
| egrep -v '.*-('${IMAGE_PAGE}'|'${TEXT_PAGE}')\.tpl'`)
fi
# no template explicitly defined -> match auto-template...
if [ -z $layout ] && [ -z $template ] ; then
# N images...
if [ -z $template ] && [ -n "${IMAGE_SPREAD[${#img[@]}]}" ] ; then
template=$(getTemplate "$spread" "${IMAGE_SPREAD[${#img[@]}]}")
fi
# build spread from pages...
if [ -z $template ] ; then
local C=0
local P
local elem
# only one page in spread...
# NOTE since the right page is more important we prioritize
# it over the left page, placing the blank left...
if [ ${#items[@]} = 1 ] ; then
C=1
echo "%"
echo "% empty page..."
template=$(getTemplate "$spread" "$EMPTY_PAGE")
if [ -z "$teplate" ] ; then
echo "\\null"
echo "\\newpage"
else
cat "${template}"
fi
fi
for elem in "${items[@]}" ; do
C=$(( C + 1 ))
P=$([ $C == 1 ] \
&& echo "left" \
|| echo "right")
# XXX need to use populateTemplate here...
# ...to do this need to somehow remove the used
# slots/files from list...
# image...
if [[ "$elem" =~ $IMAGE_FORMATS ]] ; then
echo %
echo "% $P page (image)..."
template=`getTemplate "$spread" "$IMAGE_PAGE"`
echo % template: $template
anotatePath "${elem}"
local caption=$(getCaption "$spread" "${elem}")
caption=$(readCaption "$caption")
cat "${template}" \
| sed -e "s%\${IMAGE0\?}%${elem%.*}%" \
-e "s%\${CAPTION0\?}%${caption}%"
# text...
else
echo %
echo "% $P page (text)..."
template=$(getTemplate "$spread" "$TEXT_PAGE")
echo % template: $template
cat "${template}" \
| sed "s%\${TEXT}%${elem}%"
fi
# reset for next page...
template=
# ignore the rest of the items when we are done
# creating two pages...
[ $C == 2 ] \
&& return 0
done
fi
fi
# formatting done...
[ -z $template ] \
&& return 0
# format template path...
template=${template/$spread\//}
template=${template/[0-9]-/}
# get...
template="${template[0]%.*}.tex"
if ! [ -e "$template" ] ; then
template="$TEMPLATE_DIR/${template[0]%.*}.tex"
fi
fi
populateTemplate "$spread" "$template" "${img[@]}" "${txt[@]}"
return 0
}
# Add pdf notes with image path used in template
# usage:
# anotatePath PATH
#
anotatePath(){
if [ -z "$1" ] || [ -z "$ANOTATE_IMAGE_PATHS" ] ; then
return
fi
path=$(basename ${1%.*})
# NOTE: did not figure out how to make a verbatim comment in latex
# so here we are, doing it in shell...
path=${path//_/\\_}
#echo "\\pdfmargincomment{Image: $path}%"
echo "\\pdfcommentcell{Image: $path}%"
}
#----------------------------------------------------------------------
# generate the template...
echo %----------------------------------------------------------------------
echo %
echo % WARNING: This file is auto-generated by make-spreads.sh and will be
echo "% overwritten on next run..."
echo %
echo "% Image source (preview): \"$SPREADS_DIR\""
echo "% Image source (hi-res): \"$IMAGE_HIRES_DIR\""
echo %
echo %----------------------------------------------------------------------
echo %
l=$(ls "$SPREADS_DIR/" | wc -l)
c=0
d=0
SPREADS=("$(ls "${SPREADS_DIR}" | sort -n)")
for spread in ${SPREADS[@]} ; do
spread="${SPREADS_DIR}/${spread}"
# skip non-spreads...
if ! [ -d "$spread" ] ; then
l=$(( l - 1 ))
continue
# skip temporarily disabled...
elif [[ "${spread}" =~ [\\\/]-.*$ ]] ; then
SKIP_FIRST=1
echo "% spread: ${spread}: skipped..." | tee >(cat >&2)
continue
fi
c=$(( c + 1 ))
# if $FROM is given print only stuff in range...
[ -z $FROM ] \
|| if (( $(( c - 1 )) < $FROM )) || (( $c > $STOP )) ; then
continue
fi
# if we are building only a specific spread...
##if ! [ -z $SPREAD ] && [[ "$spread" != "$SPREADS_DIR/$SPREAD" ]]; then
## continue
##fi
if ! [ -z $SKIP_FIRST ] ; then
echo %
echo %
echo % - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
fi
SKIP_FIRST=1
printf "Spread ($c/$l): ${spread} \r" >&2
echo "% spread: ${spread}"
handleSpread "$spread"
d=$(( d + 1 ))
done
echo %
echo %
echo %
echo %----------------------------------------------------------------------
echo
echo "Spread created: $d of $l " >&2
#----------------------------------------------------------------------
# vim:set ts=4 sw=4 nowrap :
|