Add CMake support

Clean up file structure.
Update build scripts.

scripts/build.alpine.release.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+mkdir obj
+set -xe
+
+apk add gcc g++ build-base linux-headers cmake make autoconf automake libtool
+apk add libressl-dev zlib-dev rapidjson-dev libevent-dev libevent-static zlib-static pcre-dev
+
+git clone https://github.com/curl/curl
+cd curl
+./buildconf
+./configure --with-ssl --disable-ldap --disable-ldaps --disable-rtsp --without-libidn2 > /dev/null
+make install -j4 > /dev/null
+cd ..
+
+git clone https://github.com/jbeder/yaml-cpp
+cd yaml-cpp
+cmake . > /dev/null
+make install -j4 > /dev/null
+cd ..
+
+git clone git://sourceware.org/git/bzip2.git
+cd bzip2
+make install -j4 > /dev/null
+cd ..
+
+cmake .
+make -j4
+g++ -o base/subconverter CMakeFiles/subconverter.dir/src/*.o  -static -lpcrecpp -lpcre -levent -lyaml-cpp -lcurl -lssl -lcrypto -lz -lbz2 -ldl -lpthread -O3 -s  
+
+cd base
+chmod +rx subconverter
+chmod +r *
+
+tar czf subconverter_linux64.tar.gz *

scripts/build.clang.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+mkdir obj
+
+set -xe
+
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c logger.cpp -o obj/logger.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c main.cpp -o obj/main.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c misc.cpp -o obj/misc.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c multithread.cpp -o obj/multithread.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c nodemanip.cpp -o obj/nodemanip.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c rapidjson_extra.cpp -o obj/rapidjson_extra.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c speedtestutil.cpp -o obj/speedtestutil.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c subexport.cpp -o obj/subexport.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c webget.cpp -o obj/webget.o
+c++ -std=c++17 -D_MACOS -Wall -fexceptions -c webserver_libevent.cpp -o obj/webserver_libevent.o
+c++ -o subconverter obj/logger.o obj/main.o obj/misc.o obj/multithread.o obj/nodemanip.o obj/rapidjson_extra.o obj/speedtestutil.o obj/subexport.o obj/webget.o obj/webserver_libevent.o -lpcrecpp -lpcre -levent -lpthread -lyaml-cpp -lcurl -lssl -lcrypto -lz -O3 -s 
+
+chmod +x subconverter

scripts/build.macos.release.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+mkdir obj
+set -xe
+
+brew reinstall yaml-cpp rapidjson libevent zlib pcre
+
+git clone https://github.com/curl/curl
+cd curl
+./buildconf > /dev/null
+./configure --with-ssl=/usr/local/opt/openssl@1.1 --without-mbedtls --disable-ldap --disable-ldaps --disable-rtsp --without-libidn2 > /dev/null
+make -j8 > /dev/null
+cd ..
+
+curl -L -o bzip2-1.0.6.tar.gz https://sourceforge.net/projects/bzip2/files/bzip2-1.0.6.tar.gz/download
+tar xvf bzip2-1.0.6.tar.gz
+cd bzip2-1.0.6
+make -j8 > /dev/null
+cd ..
+
+cp /usr/local/lib/libevent.a .
+cp /usr/local/opt/zlib/lib/libz.a .
+cp /usr/local/opt/openssl@1.1/lib/libssl.a .
+cp /usr/local/opt/openssl@1.1/lib/libcrypto.a .
+cp /usr/local/lib/libyaml-cpp.a .
+cp /usr/local/lib/libpcre.a .
+cp /usr/local/lib/libpcrecpp.a .
+
+export CMAKE_CXX_FLAGS=-D_MACOS -I/usr/local/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/curl/include
+cmake .
+make -j8
+c++ -Xlinker -unexported_symbol -Xlinker "*" -o base/subconverter obj/logger.o obj/main.o obj/misc.o obj/multithread.o obj/nodemanip.o obj/rapidjson_extra.o obj/speedtestutil.o obj/subexport.o obj/webget.o obj/webserver_libevent.o libpcrecpp.a libpcre.a libevent.a curl/lib/.libs/libcurl.a libz.a libssl.a libcrypto.a libyaml-cpp.a bzip2-1.0.6/libbz2.a -ldl -lpthread -O3
+
+cd base
+chmod +rx subconverter
+chmod +r *
+tar czf subconverter_darwin64.tar.gz *
+cd ..
+
+set +xe

scripts/config.termux.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -xe
+
+apt update
+apt install git cmake clang
+apt install libevent libcurl openssl pcre
+
+git clone https://github.com/jbeder/yaml-cpp
+cd yaml-cpp
+cmake -DCMAKE_INSTALL_PREFIX=/data/data/com.termux/files/usr .
+make install -j3
+cd ..
+
+git clone https://github.com/tencent/rapidjson
+cd rapidjson
+cp -r include/* /data/data/com.termux/files/usr/include/
+cd ..