Add woff2-Support

Since newer Versions of Firefox use woff and try to get them, this adds
more and more 404s to server logs.

Closes: #3

README.md

@@ -38,11 +38,11 @@ the terms.
     <dd>Download the specified set of webfont formats from Google's servers.
         <code>FORMAT</code> is a comma-separated list of identifiers for
         webfont formats. Supported identifiers are <code>eof</code>,
-        <code>woff</code>, <code>svg</code>, and <code>ttf</code>.
-        Additionally, the special value <code>all</code> expands to all
-        supported formats. The default is <code>all</code>. Note that you may
-        not really need all formats. In most cases, WOFF is enough. See
-        http://caniuse.com/#search=woff for a current status.</dd>
+        <code>woff</code>, <code>woff2</code>, <code>svg</code>, and
+        <code>ttf</code>. Additionally, the special value <code>all</code>
+        expands to all supported formats. The default is <code>all</code>. Note
+        that you may not really need all formats. In most cases, WOFF is enough.
+        See http://caniuse.com/#search=woff for a current status.</dd>
     <dt><code>-h</code>, <code>--help</code></dt>
     <dd>Display this message and exit.</dd>
     <dt><code>-l LANGSPEC</code>, <code>--languages=LANGSPEC</code></dt>

google-font-download

@@ -62,12 +62,12 @@ usage() {
 		  -f FORMAT, --format=FORMAT
 		    Download the specified set of webfont formats from Google's
 		    servers. FORMAT is a comma-separated list of identifiers for
-		    webfont formats. Supported identifiers are eof, woff, svg,
-		    and ttf. Additionally, the special value \`all' expands to
-		    all supported formats. The default is \`$format'. Note that
-		    you may not really need all formats. In most cases, WOFF is
-		    enough. See http://caniuse.com/#search=woff for a current
-		    status.
+		    webfont formats. Supported identifiers are eof, woff, woff2,
+		    svg, and ttf. Additionally, the special value \`all' expands
+		    to all supported formats. The default is \`$format'. Note
+		    that you may not really need all formats. In most cases,
+		    WOFF is enough. See http://caniuse.com/#search=woff for
+		    a current status.
 
 		  -h, --help
 		    Display this message and exit.
@@ -198,12 +198,12 @@ fi
 declare -a formats
 if [ "$format" = "all" ]; then
 	# Deal with the special "all" value
-	formats=("eot" "woff" "svg" "ttf")
+	formats=("eot" "woff" "woff2" "svg" "ttf")
 else
 	IFS=', ' read -a formats <<< "$format"
 	for f in "${formats[@]}"; do
 		case "$f" in
-			eof|woff|svg|ttf)
+			eof|woff|woff2|svg|ttf)
 				;;
 			*)
 				err_exit "Unsupported font format \`${f}'"
@@ -247,6 +247,8 @@ useragent[eot]='Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)'
 # shellcheck disable=SC2154
 useragent[woff]='Mozilla/5.0 (Windows NT 6.1; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0'
 # shellcheck disable=SC2154
+useragent[woff2]='Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0'
+# shellcheck disable=SC2154
 useragent[svg]='Mozilla/4.0 (iPad; CPU OS 4_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/4.1 Mobile/9A405 Safari/7534.48.3'
 # shellcheck disable=SC2154
 useragent[ttf]='Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.54.16 (KHTML, like Gecko) Version/5.1.4 Safari/534.54.16'
@@ -351,6 +353,9 @@ for family in "${families[@]}"; do
 			woff)
 				printf >>"$css" "\t\turl('%s') format('woff')%s\n" "${fontnameescaped}.$uakey" "${terminator}"
 				;;
+			woff2)
+				printf >>"$css" "\t\turl('%s') format('woff2')%s\n" "${fontnameescaped}.$uakey" "${terminator}"
+				;;
 			ttf)
 				printf >>"$css" "\t\turl('%s') format('truetype')%s\n" "${fontnameescaped}.$uakey" "${terminator}"
 				;;