DataGenerator

Usage of fsdgen tool

Data generator

The current FontStream version support only SWF format which contains a embedded font (chunks).

Each SWF (font chunk) contains a defined number of chars (default 100):

U+0000-U+0063
U+0064-U+00C7
U+00C8-U+012B
U+012C-U+018F
U+0190-U+01F3
...

To compile these chunks, you can use Flex SDK or hxswfml handled by a script (shell script or as3 script). See below.

Flex SDK - fontkit

See Flex_SDK_-_fontkit Flex SDK - fontkit for more informations.

hxswfml

See hxswfml for more informations.

Scripts

fsdgen, Redtamarin AS3 script

set FLEX_HOME=path/to/flexsdk
redshell fsdgen.as -- -a "My Font" "myfont.otf"

You can make a shell script or a command line script using arguments redirection $@ (Unix) or %* (Windows)

See redtamarin readme.txt about compile AS3 script to executable.

• http://code.google.com/p/fstream/source/browse/trunk/utils/fsdgen.as
• http://code.google.com/p/redtamarin/

Shell script, command line script

This script use Flex SDK, but could be adapted to use an other tool.

This script is here just as example and could not work as except, must be debugged and tested!

• http://help.adobe.com/en_US/flex/using/WS2db454920e96a9e51e63e3d11c0bf69084-7f5f.html#WS02f7d8d4857b16776fadeef71269f135e73-8000
• http://stackoverflow.com/questions/192249/how-do-i-parse-command-line-arguments-in-bash
• http://tldp.org/LDP/abs/html/
• http://en.wikipedia.org/wiki/Printf#sprintf

#!/bin/bash

E_BADARGS=10

FLEX_HOME="path/to/flexsdk"
FLEX_FONT_KIT="java -Dsun.io.useCanonCaches=false -Xms32m -Xmx512m -jar \"$FLEX_HOME/lib/flex-fontkit.jar\""
font_swf="$FLEX_FONT_KIT -3";
size=100
alias=
bold=0
italic=0
file=

usage()
{
	cat << EOF
usage: $0 options file

This script generate SWF chunks of a font, by calling flex-fontkit.jar of Flex SDK

Supported font file types are TrueType, OpenType, TrueType Collection and Datafork TrueType.

OPTIONS:
   -h	 	   Show this message
   -b	 	   Embeds the font’s bold face.
   -i	 	   Embeds the font’s italic face.
   -a alias    Sets the font’s alias. The default is the font’s family name.
   -s size     Sets the number of chars in each SWF chunks. The default is 100.
EOF
}

while [[ $1 == -* ]]; do
	case "$1" in
		# Help
		-h|-help|--help|-\?) usage; exit 0;;
		# Bold flag
		-b|-bold|--bold) bold=1; shift;;
		# Italic flag
		-i|-italic|--italic) italic=1; shift;;
		# Alias
		-a|-alias|--alias) if (($# > 1))
			then
				alias=$2; shift 2
			else 
				echo "$1 requires an argument" 1>&2
				exit $E_BADARGS
			fi ;;
		# Chunk size
		-s|-size|--size) if (($# > 1))
			then
				size=$2; shift 2
			else 
				echo "$1 requires an argument" 1>&2
				exit $E_BADARGS
			fi ;;
		# No more optional arguments, next is file
		--) if (($# > 1))
			then
				file=$2; shift 2; break
			else 
				echo "$1 requires an argument" 1>&2
				exit $E_BADARGS
			fi ;;
		# All others arguments
		-*) echo "invalid option: $1" 1>&2; usage; exit $E_BADARGS;;
		# Assume is last as file
		*) if (($# > 1))
			then
				echo "invalid argument founded: $2" 1>&2
				exit $E_BADARGS
			else 
				file=$1; shift; break
			fi ;;
	esac
done

# File argument not found or file not exist
if [[ -z $file ]] || [[ -e $file ]]
then
	echo "invalid file" 1>&2; usage; exit $E_BADARGS
fi

# Alias is set
if [[ -n $alias ]]
then
	font_swf = "$font_swf -a $alias"
fi

# Bold
if (($bold == 1))
then
	font_swf = "$font_swf -b"
fi

# Italic
if (($italic == 1))
then
	font_swf = "$font_swf -i"
fi

# Last char is U+FFFF
max=65535
last=0
i=0

while ((last < max))
do
	((i++))
	first=$((i * chunk_length))
	last=$((first + chunk_length - 1))
	if((last > max))
		last = $max
	fi
	range=$(printf "U+%04#x-U+%04#x" "$first" "$last")
	$font_swf -u "$range" -o "$range" "$file"
done