#!/bin/sh

## Query the font and extract the required information.
## On entry: $1 = filename
##  On exit: Font* variables will be initialised

funcFontQuery() {
	if [ -z "$BASH" ]; then local FUNCNAME=funcFontQuery; fi
	if [ $DEBUG_TRANSITS -ne 0 ]; then echo "$FUNCNAME(): IN"; fi

	## Local variables.
	local style stylelang column columnlang
	local styleen stylenative
	local nativelang=${LANG%%_*}
	local family line
	local first=1

	fc-query "$1" > $TEMP_DIR/FontQuery
	if [ $? -eq 0 ]; then

		while read -r line; do
			case $line in
				family:*"(s)")
					family=$line ;;
				style:*"(s)")
					style=$line ;;
				stylelang:*"(s)")
					stylelang=$line ;;
			esac
		done < $TEMP_DIR/FontQuery

		## Get text before first '(s)'
		family=${family%%(s)*}
		## Get text before last '"'
		family=${family%\"*}
		## Get text after first '"'
		family=${family#*\"}
		FontFamily=$family

		while [ -n "$style" -a -n "$stylelang" ]; do

			## Get text before first '(s)'
			column=${style%%(s)*}
			columnlang=${stylelang%%(s)*}
			## Get text before last '"'
			column=${column%\"*}
			columnlang=${columnlang%\"*}
			## Get text after first '"'
			column=${column#*\"}
			columnlang=${columnlang#*\"}

			if [ $DEBUG_CONTENT -ne 0 ]; then
				echo "$FUNCNAME(): columnlang=$columnlang column=$column"
			fi

			## Always record the first item as English.
			if [ $first -eq 1 ]; then
				styleen=$column
				first=0
			fi
			if [ "$columnlang" = en ]; then
				styleen=$column
			fi
			if [ "$columnlang" = "$nativelang" ]; then
				stylenative=$column
			fi

			## Get text after first '(s)'
			style=${style#*(s)}
			stylelang=${stylelang#*(s)}

		done

		if [ -n "$stylenative" ]; then
			FontStyle=$stylenative
		else
			FontStyle=$styleen
		fi

	else
		FontFamily="$i18nInvalid_font"
		FontStyle=""
	fi

	if [ $DEBUG_CONTENT -ne 0 ]; then
		echo "$FUNCNAME(): nativelang=$nativelang"
		echo "$FUNCNAME(): FontFamily=$FontFamily"
		echo "$FUNCNAME(): FontStyle=$FontStyle"
	fi

	if [ $DEBUG_TRANSITS -ne 0 ]; then echo "$FUNCNAME(): OUT"; fi
}