Add support for running BiDi algorithm on text with styling annotations.

Makefile

@@ -13,21 +13,22 @@ all: index.js mapbox-gl-rtl-text.js mapbox-gl-rtl-text.js.min mapbox-gl-rtl-text
 build/wrapper.js: build/ushape_wrapper.o build/ubidi_wrapper.o
 	mkdir -p build
 	${EMSCRIPTEN}/emcc -Oz -v -o build/wrapper.js build/ushape_wrapper.o build/ubidi_wrapper.o icu-llvm/source/lib/libicuuc.a \
-	    -s EXPORTED_FUNCTIONS="['_ushape_arabic','_bidi_processText','_bidi_getLine','_bidi_getParagraphEndIndex']" \
+	    -s EXPORTED_FUNCTIONS="['_ushape_arabic','_bidi_processText','_bidi_getLine','_bidi_getParagraphEndIndex','_bidi_setLine','_bidi_writeReverse','_bidi_getVisualRun']" \
 	    -s NO_EXIT_RUNTIME="1" \
 	    -s DEAD_FUNCTIONS="[]" \
 	    -s NO_FILESYSTEM="1" \
 	    -s INLINING_LIMIT="1" \
 		-s ALLOW_MEMORY_GROWTH="1" \
 	    -s EXPORTED_RUNTIME_METHODS="['stringToUTF16','UTF16ToString','ccall','_malloc','_free']" \
-	    --llvm-lto 3 \
+		-s WASM=0 \
+		--llvm-lto 3 \
 		--memory-init-file 0 \
 		--closure 0
 
 build/wrapper.wasm.js: build/ushape_wrapper.o build/ubidi_wrapper.o
 	mkdir -p build
 	${EMSCRIPTEN}/emcc -Oz -v -o build/wrapper.wasm.js build/ushape_wrapper.o build/ubidi_wrapper.o icu-llvm/source/lib/libicuuc.a \
-	    -s EXPORTED_FUNCTIONS="['_ushape_arabic','_bidi_processText','_bidi_getLine','_bidi_getParagraphEndIndex']" \
+	    -s EXPORTED_FUNCTIONS="['_ushape_arabic','_bidi_processText','_bidi_getLine','_bidi_getParagraphEndIndex','_bidi_setLine','_bidi_writeReverse','_bidi_getVisualRun']" \
 	    -s NO_EXIT_RUNTIME="1" \
 	    -s DEAD_FUNCTIONS="[]" \
 	    -s NO_FILESYSTEM="1" \

build.sh

@@ -20,7 +20,7 @@ function setup_emsdk {
 	download_and_extract \
         https://s3.amazonaws.com/mozilla-games/emscripten/releases/emsdk-portable.tar.gz \
         emsdk-portable.tgz \
-        90c9b5c2ac03f4ac5295fa0f7e5caaf343169b3f
+        5524019776723b42ce731f20d9dff91be63c8f50
 
 	emsdk-portable/emsdk update
 	emsdk-portable/emsdk install latest
@@ -30,9 +30,9 @@ function setup_emsdk {
 
 function fetch_icu {
 	download_and_extract \
-        http://download.icu-project.org/files/icu4c/58.1/icu4c-58_1-src.tgz \
-        icu58_1.tgz \
-        ad6995ba349ed79dde0f25d125a9b0bb56979420
+        http://download.icu-project.org/files/icu4c/62.1/icu4c-62_1-src.tgz \
+        icu62_1.tgz \
+        8a216e755cddd169b9ec8cc7edeed38824900f06
         cp -R icu icu-llvm
 }