Merge branch 'rewrite' into main

2019-12-28 08:18:22 +01:00 · 2019-12-28 08:18:22 +01:00 · 1d6f4eb172
commit 1d6f4eb172
parent 2203f271c9 8c77df1ee1
26 changed files with 1679 additions and 913 deletions
--- a/.drone.yml
+++ b/.drone.yml
@ -1,123 +1,106 @@
-pipeline:
-  download:
-    image: plugins/download
-    pull: true
-    source: https://schlomp.space/attachments/e1c1e64b-1192-4037-aad4-95238ad648b0
-    destination: mastodon-cpp.deb
+# -*- fill-column: 1000 -*-
+kind: pipeline
+name: build x86_64

-  gcc8:
-    image: debian:stretch-slim
-    pull: true
-    environment:
-      - LANG=C.utf8
-    commands:
-      - rm /etc/apt/apt.conf.d/docker-clean
-      - apt-get update -q
-      - echo "APT::Default-Release \"stretch\";" >> /etc/apt/apt.conf.d/00default_release
-      - echo "deb http://deb.debian.org/debian sid main" >> /etc/apt/sources.list.d/sid.list
-      - echo "deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu xenial main" >> /etc/apt/sources.list.d/ubuntu-toolchain-r.list
-      - apt-get install -qy gnupg
-      - gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0x60c317803a41ba51845e371a1e9377a2ba9ef27f
-      - gpg --armor --export 0x60c317803a41ba51845e371a1e9377a2ba9ef27f | apt-key add -
-      - apt-get update -q
-      - apt-get install -qy build-essential cmake pkg-config
-      - apt-get install -qy -t xenial g++-8
-      - update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 100
-      - update-alternatives --set g++ /usr/bin/g++-8
-      - apt-get install -qy libcurl4-openssl-dev libjsoncpp-dev libboost-all-dev
-      - apt-get install -qy -t sid libcurlpp-dev
-      - dpkg -i mastodon-cpp.deb
-      - rm -rf build && mkdir -p build && cd build
-      - cmake ..
-      - make VERBOSE=1
-      - make install DESTDIR=install
-    volumes:
-      - /var/cache/debian-package-cache:/var/cache/apt/archives
+volumes:
+- name: debian-package-cache
+  host:
+    path: /var/cache/debian-package-cache

-  gcc7:
-    image: debian:stretch-slim
-    pull: true
-    environment:
-      - LANG=C.utf8
-    commands:
-      - rm /etc/apt/apt.conf.d/docker-clean
-      - apt-get update -q
-      - echo "APT::Default-Release \"stretch\";" >> /etc/apt/apt.conf.d/00default_release
-      - echo "deb http://deb.debian.org/debian sid main" >> /etc/apt/sources.list.d/sid.list
-      - echo "deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu xenial main" >> /etc/apt/sources.list.d/ubuntu-toolchain-r.list
-      - apt-get install -qy gnupg
-      - gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0x60c317803a41ba51845e371a1e9377a2ba9ef27f
-      - gpg --armor --export 0x60c317803a41ba51845e371a1e9377a2ba9ef27f | apt-key add -
-      - apt-get update -q
-      - apt-get install -qy build-essential cmake pkg-config
-      - apt-get install -qy -t xenial g++-7
-      - update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 100
-      - update-alternatives --set g++ /usr/bin/g++-7
-      - apt-get install -qy libcurl4-openssl-dev libjsoncpp-dev libboost-all-dev
-      - apt-get install -qy -t sid libcurlpp-dev
-      - dpkg -i mastodon-cpp.deb
-      - rm -rf build && mkdir -p build && cd build
-      - cmake ..
-      - make VERBOSE=1
-      - make install DESTDIR=install
-    volumes:
-      - /var/cache/debian-package-cache:/var/cache/apt/archives
+trigger:
+  event:
+    exclude:
+    - tag

-  gcc5:
-    image: debian:stretch-slim
-    pull: true
-    environment:
-      - LANG=C.utf8
-    commands:
-      - rm /etc/apt/apt.conf.d/docker-clean
-      - apt-get update -q
-      - echo "APT::Default-Release \"stretch\";" >> /etc/apt/apt.conf.d/00default_release
-      - echo "deb http://deb.debian.org/debian sid main" >> /etc/apt/sources.list.d/sid.list
-      - echo "deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu xenial main" >> /etc/apt/sources.list.d/ubuntu-toolchain-r.list
-      - apt-get install -qy gnupg
-      - gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0x60c317803a41ba51845e371a1e9377a2ba9ef27f
-      - gpg --armor --export 0x60c317803a41ba51845e371a1e9377a2ba9ef27f | apt-key add -
-      - apt-get update -q
-      - apt-get install -qy build-essential cmake pkg-config
-      - apt-get install -qy -t xenial g++-5
-      - update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-5 100
-      - update-alternatives --set g++ /usr/bin/g++-5
-      - apt-get install -qy libcurl4-openssl-dev libjsoncpp-dev libboost-all-dev
-      - apt-get install -qy -t sid libcurlpp-dev
-      - dpkg -i mastodon-cpp.deb
-      - rm -rf build && mkdir -p build && cd build
-      - cmake ..
-      - make VERBOSE=1
-      - make install DESTDIR=install
-    volumes:
-      - /var/cache/debian-package-cache:/var/cache/apt/archives
+steps:
+- name: download mastodon-cpp for buster
+  image: plugins/download
+  settings:
+    source: https://schlomp.space/tastytea/mastodon-cpp/releases/download/0.111.5/libmastodon-cpp_0.111.5-0_buster_amd64.deb
+    destination: mastodon-cpp_buster.deb

-  gcc6:
-    image: debian:stretch-slim
-    pull: true
-    environment:
-      - LANG=C.utf8
-    commands:
-      - rm /etc/apt/apt.conf.d/docker-clean
-      - echo "APT::Default-Release \"stretch\";" >> /etc/apt/apt.conf.d/00default_release
-      - echo "deb http://deb.debian.org/debian sid main" >> /etc/apt/sources.list.d/sid.list
-      - apt-get update -q
-      - apt-get install -qy build-essential cmake pkg-config
-      - apt-get install -qy libcurl4-openssl-dev libjsoncpp-dev libboost-all-dev
-      - apt-get install -qy -t sid libcurlpp-dev
-      - dpkg -i mastodon-cpp.deb
-      - rm -rf build && mkdir -p build && cd build
-      - cmake ..
-      - make VERBOSE=1
-      - make install DESTDIR=install
-    volumes:
-      - /var/cache/debian-package-cache:/var/cache/apt/archives
+# - name: download mastodon-cpp for bionic
+#   image: plugins/download
+#   settings:
+#     source: https://schlomp.space/tastytea/mastodon-cpp/releases/download/0.111.5/libmastodon-cpp_0.111.5-0_bionic_amd64.deb
+#     destination: mastodon-cpp_bionic.deb

-  notify:
-    image: drillster/drone-email
-    pull: true
+# Workaround until the debian packages are fixed.
+- name: download restclient-cpp source
+  image: plugins/download
+  settings:
+    source: https://github.com/mrtazz/restclient-cpp/archive/0.5.1.tar.gz
+    destination: restclient-cpp.tar.gz
+
+- name: GCC 8 on Debian buster
+  image: debian:buster-slim
+  pull: always
+  environment:
+    CXX: g++-8
+    CXXFLAGS: -pipe -O2
+    DEBIAN_FRONTEND: noninteractive
+    LANG: C.utf8
+  commands:
+  - rm /etc/apt/apt.conf.d/docker-clean
+  - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
+  - apt-get update -q
+  - echo "deb https://packagecloud.io/mrtazz/restclient-cpp/debian/ buster main" > /etc/apt/sources.list.d/restclient-cpp.list
+  - apt-get install -qq debian-archive-keyring curl gnupg apt-transport-https
+  - curl -L https://packagecloud.io/mrtazz/restclient-cpp/gpgkey | apt-key add -
+  - apt-get update -q
+  - apt-get install -qq build-essential cmake asciidoc
+  - apt-get install -qq libboost-filesystem-dev libboost-log-dev libboost-regex-dev libjsoncpp-dev catch libcurl4-openssl-dev restclient-cpp libpoco-dev
+  - apt-get -qq install ./mastodon-cpp_buster.deb
+  - tar -xf restclient-cpp.tar.gz
+  - cd restclient-cpp-*
+  - cmake -DCMAKE_INSTALL_PREFIX=/usr .
+  - cmake --build .
+  - make install
+  - cd ..
+  - rm -rf build && mkdir -p build && cd build
+  - cmake ..
+  - make VERBOSE=1
+  - make install DESTDIR=install
+  volumes:
+  - name: debian-package-cache
+    path: /var/cache/apt/archives
+
+# - name: GCC 7 on Ubuntu bionic
+#   image: ubuntu:bionic
+#   pull: always
+#   environment:
+#     CXX: g++-7
+#     CXXFLAGS: -pipe -O2
+#     DEBIAN_FRONTEND: noninteractive
+#     LANG: C.utf8
+#   commands:
+#   - rm /etc/apt/apt.conf.d/docker-clean
+#   - alias apt-get='rm -f /var/cache/apt/archives/lock && apt-get'
+#   - apt-get update -q
+#   - echo "deb https://packagecloud.io/mrtazz/restclient-cpp/ubuntu/ bionic main" > /etc/apt/sources.list.d/restclient-cpp.list
+#   - apt-get install -qq curl gnupg apt-transport-https
+#   - curl -L https://packagecloud.io/mrtazz/restclient-cpp/gpgkey | apt-key add -
+#   - apt-get update -q
+#   - apt-get install -qq build-essential cmake asciidoc
+#   - apt-get install -qq libboost-filesystem-dev libboost-log-dev libboost-regex-dev libjsoncpp-dev catch libcurl4-openssl-dev restclient-cpp libpoco-dev
+#   - apt-get -qq install ./mastodon-cpp_bionic.deb
+#   - rm -rf build && mkdir -p build && cd build
+#   - cmake ..
+#   - make VERBOSE=1
+#   - make install DESTDIR=install
+#   volumes:
+#   - name: debian-package-cache
+#     path: /var/cache/apt/archives
+
+- name: notify
+  image: drillster/drone-email
+  pull: always
+  settings:
    host: cryptoparty-celle.de
-    secrets: [ email_username, email_password ]
    from: drone@tzend.de
-    when:
-      status: [ changed, failure ]
+    username:
+      from_secret: email_username
+    password:
+      from_secret: email_password
+  when:
+    status: [ changed, failure ]
--- a/.editorconfig
+++ b/.editorconfig
@ -0,0 +1,20 @@
+# Configuration file for EditorConfig.
+# More information is available under <https://editorconfig.org/>.
+
+root = true
+
+[*]
+indent_style = space
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 80
+
+[*.?pp]
+indent_size = 4
+tab_width = 4
+
+[{CMakeLists.txt,*.cmake}]
+indent_size = 2
+tab_width = 2
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -1,47 +1,40 @@
-cmake_minimum_required (VERSION 3.6)
+# Support version 3.9 and above, but use policy settings up to 3.14.
+# 3.9 is needed for project description.
+cmake_minimum_required(VERSION 3.9...3.14)
+# Ranges are supported from 3.12, set policy to current for < 3.12.
+if(${CMAKE_VERSION} VERSION_LESS 3.12)
+  cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
+endif()
+
+# Global build options.
+set(CMAKE_BUILD_TYPE "Release" CACHE STRING "The type of build.")
+option(BUILD_SHARED_LIBS "Build shared libraries." YES)
+
 project (mastorss
-         VERSION 0.9.0
-         LANGUAGES CXX
-)
+  VERSION 0.9.9999
+  DESCRIPTION "Another RSS to Mastodon bot."
+  LANGUAGES CXX)

-include(GNUInstallDirs)
-find_package(CURL REQUIRED)
-find_package(Boost REQUIRED COMPONENTS system filesystem)
-find_package(PkgConfig REQUIRED)
-pkg_check_modules(CURLPP REQUIRED curlpp)
-pkg_check_modules(JSONCPP REQUIRED jsoncpp)
+list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

-set(CMAKE_CXX_STANDARD 14)
+# Project build options.
+option(WITH_MAN "Compile and install manpage." YES)
+
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)

-include_directories(${PROJECT_SOURCE_DIR}/src)
-include_directories(${PROJECT_BINARY_DIR})
+include(debug_flags)

-include_directories(${CURL_INCLUDE_DIR})
-include_directories(${CURLPP_INCLUDE_DIR})
-include_directories(${JSONCPP_INCLUDE_DIR})
-include_directories(${Boost_INCLUDE_DIRS})
+include(GNUInstallDirs)

-link_directories(${CURL_LIBRARY_DIRS})
-link_directories(${CURLPP_LIBRARY_DIRS})
-link_directories(${JSONCPP_LIBRARY_DIRS})
-link_directories(${Boost_LIBRARY_DIRS})
+add_subdirectory(src)

-add_definitions(${Boost_DEFINITIONS})
-
-# Write version in header
-configure_file (
-    "${PROJECT_SOURCE_DIR}/src/version.hpp.in"
-    "${PROJECT_BINARY_DIR}/version.hpp"
-)
-
-file(GLOB sources src/*.cpp)
-add_executable(mastorss ${sources})
-target_link_libraries(mastorss
-                      mastodon-cpp ${CURLPP_LIBRARIES}
-                      ${JSONCPP_LIBRARIES} ${Boost_LIBRARIES} stdc++fs)
-install(TARGETS mastorss DESTINATION ${CMAKE_INSTALL_BINDIR})
+if(WITH_MAN)
+  add_subdirectory(man)
+endif()

 install(FILES watchwords.json
-        DESTINATION ${CMAKE_INSTALL_DATADIR}/mastorss)
+  DESTINATION "${CMAKE_INSTALL_DATADIR}/mastorss")
+
+# include(cmake/packages.cmake)
--- a/CODE_OF_CONDUCT.adoc
+++ b/CODE_OF_CONDUCT.adoc
@ -0,0 +1,49 @@
+:contact-coc: tastytea@tastytea.de
+
+== Code of Conduct
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, education, ethnicity, gender identity and expression, level of
+experience, nationality, personal appearance, race, religion, sex
+characteristics, sexual identity and orientation or socio-economic status.
+
+=== Examples
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language.
+* Being respectful of differing viewpoints and experiences.
+* Gracefully accepting constructive criticism.
+* Focusing on what is best for the community.
+* Showing empathy towards other community members.
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances.
+* Trolling, insulting/derogatory comments, and personal attacks.
+* Public or private harassment.
+* Publishing others’ private information, such as a physical or electronic
+  address, without explicit permission.
+
+=== Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at {contact-coc}.
+
+All complaints will be reviewed and investigated and will result in a response
+that is deemed necessary and appropriate to the circumstances. The project team
+is obligated to maintain confidentiality with regard to the reporter of an
+incident.
+
+=== Attribution
+
+This Code of Conduct is adapted from the Contributor Covenant, version 1.4,
+available at
+https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
--- a/CONTRIBUTING.adoc
+++ b/CONTRIBUTING.adoc
@ -0,0 +1,29 @@
+:project: mastorss
+:uri-base: https://schlomp.space/tastytea/{project}
+:uri-coc: {uri-base}/src/branch/main/CODE_OF_CONDUCT.adoc
+:contact-email: tastytea@tastytea.de
+:contact-xmpp: {contact-email}
+:contact-fediverse: https://likeable.space/users/tastytea
+
+== How to contribute
+
+Read the link:{uri-coc}[Code of Conduct].
+
+=== Reporting bugs or suggesting enhancements
+
+Before reporting a bug, please
+https://schlomp.space/tastytea/{project}/issues[perform a search] to see if the
+problem has already been reported. If it has, add a comment to the existing
+issue instead of opening a new one. Same for enhancements.
+
+You can also contact me via mailto:{contact-email}[E-Mail],
+link:xmpp:{contact-xmpp}[XMPP] or the {contact-fediverse}[Fediverse] if you
+don't want to open an account.
+
+=== Pull requests
+
+Please use similar coding conventions as the rest of the project. The basic rule
+to remember is to write code in the same style as the existing/surrounding code.
+
+You can also send me your patches via mailto:{contact-email}[E-Mail], ideally
+using `git format-patch` or `git send-email`.
--- a/README.adoc
+++ b/README.adoc
@ -0,0 +1,70 @@
+:toc: preamble
+
+:project: mastorss
+:uri-base: https://schlomp.space/tastytea/{project}
+:uri-branch-main: {uri-base}/src/branch/main
+:uri-gcc: https://gcc.gnu.org/
+:uri-cmake: https://cmake.org/
+:uri-asciidoc: http://asciidoc.org/
+:uri-catch: https://github.com/catchorg/Catch2
+:uri-boost: https://www.boost.org/
+:uri-mastodon-cpp: https://schlomp.space/tastytea/mastodon-cpp
+:uri-jsoncpp: https://github.com/open-source-parsers/jsoncpp
+:uri-restclient-cpp: http://code.mrtazz.com/restclient-cpp/
+:uri-poco: https://pocoproject.org/
+
+*mastorss* reads RSS feeds and posts the items via the Mastodon API. Does not
+support Atom at the moment.
+
+== Install
+
+=== Dependencies
+
+* Tested OS: Linux
+* C++ compiler (tested: link:{uri-gcc}[gcc] 7/8/9)
+* link:{uri-cmake}[cmake] (at least: 3.9)
+* link:{uri-boost}[boost] (at least: 1.62)
+* link:{uri-mastodon-cpp}[mastodon-cpp] (at least: 0.111.3)
+** link:{uri-poco}[POCO] (at least: 1.7)
+* link:{uri-jsoncpp}[jsoncpp] (at least: 1.7)
+* link:{uri-restclient-cpp}[restclient-cpp] (at least: 0.5.1)
+
+=== Get sourcecode
+
+==== Development version
+
+[source,shell]
+--------------------------------------------------------------------------------
+git clone https://schlomp.space/tastytea/mastorss.git
+--------------------------------------------------------------------------------
+
+=== Compile
+
+[source,shell]
+--------------------------------------------------------------------------------
+mkdir build
+cd build/
+cmake ..
+cmake --build .
+--------------------------------------------------------------------------------
+
+Install with `make install`.
+
+== Usage
+
+See link:{uri-branch-main}/man/mastorss.1.adoc[manpage].
+
+=== Error codes
+
+Same as
+link:{uri-mastodon-cpp}/src/branch/master/README.adoc#_error_codes[mastodon-cpp],
+plus:
+
+[%autowidth,cols=">,<"]
+|===========================================================
+| Code | Explanation
+
+|    1 | Could not send post for unknown reasons.
+|===========================================================
+
+include::{uri-base}/raw/branch/main/CONTRIBUTING.adoc[]
--- a/README.md
+++ b/README.md
@ -1,90 +0,0 @@
-**mastorss** dumps RSS feeds into a mastodon account.
-Supports RSS 2.0 but not RSS 0.92. Does not support Atom at the moment.
-
-\<item\>s in feeds must have \<link\>, \<title\> and \<description\>.
-
-The documentation is far from complete, sorry.
-
-# Install
-
-## Dependencies
-
- * Tested OS: Linux
- * C++ compiler (tested: gcc 5 / 6 / 7 / 8)
- * [cmake](https://cmake.org/) (tested: 3.9 / 3.12)
- * [boost](http://www.boost.org/) (tested: 1.65 / 1.62)
- * [curlpp](http://www.curlpp.org/) (tested: 0.8)
- * [mastodon-cpp](https://schlomp.space/tastytea/mastodon-cpp) (at least:
-   0.105.0)
- * [jsoncpp](https://github.com/open-source-parsers/jsoncpp) (tested: 1.8 / 1.7)
-
-## Get sourcecode
-
-### Development version
-
-    git clone https://schlomp.space/tastytea/mastorss.git
-
-## Compile
-
-    mkdir build
-    cd build/
-    cmake ..
-    make
-
-## Install
-
-Install with `make install`.
-
-# Usage
-
-Put `watchwords.json` into `~/.config/mastorss/`. Launch with profile name.  The
-first occurence of every watchword in an RSS item will be turned into a hashtag.
-For profile-specific watchwords see the example in `watchwords.json`.  In the
-first run only the newest entry is tooted.
-
-The profile can't be named "global".
-
-## Example config file
-
-${HOME}/.config/mastorss/config-example.json
-
-    {
-        "example": {
-            "instance": "botsin.space",
-            "feedurl": "https:\/\/example.com\/feed.rss",
-            "access_token": "123abc",
-            "max_size": 400,
-            "titles_only": false,
-            "skip":
-            [
-                "If the entry starts with this, skip it",
-                "Skip me too!"
-            ],
-            "fixes":
-            [
-                "delete this",
-                "<p>[Rr]ead more(\.{3}|…)</p>"
-            ],
-            "append": "#bot"
-        }
-    }
-
-
-## Error codes
-
-Same as
-[mastodon-cpp](https://schlomp.space/tastytea/mastodon-cpp/src/branch/master/README.adoc#_error_codes),
-plus:
-
-|      Code | Explanation                             |
-| --------: |:----------------------------------------|
-|         1 | Could not send post for unknown reasons |
-
-# Copyright
-
-``` text
-Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>.
-License GPLv3: GNU GPL version 3 <https://www.gnu.org/licenses/gpl-3.0.html>.
-This program comes with ABSOLUTELY NO WARRANTY. This is free software,
-and you are welcome to redistribute it under certain conditions.
-```
--- a/cmake/debug_flags.cmake
+++ b/cmake/debug_flags.cmake
@ -0,0 +1,58 @@
+# Set compiler flags for Debug builds.
+# Only has an effect on GCC/Clang >= 5.0.
+
+set(DEBUG_CXXFLAGS "")
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang"
+    AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5")
+  list(APPEND DEBUG_CXXFLAGS
+    "-Wall"
+    "-Wextra"
+    "-Wpedantic"
+    "-Wuninitialized"
+    "-Wshadow"
+    "-Wnon-virtual-dtor"
+    "-Wconversion"
+    "-Wsign-conversion"
+    "-Wold-style-cast"
+    "-Wzero-as-null-pointer-constant"
+    "-Wmissing-declarations"
+    "-Wcast-align"
+    "-Wunused"
+    "-Woverloaded-virtual"
+    "-Wdouble-promotion"
+    "-Wformat=2"
+    "-ftrapv"
+    "-fsanitize=undefined"
+    "-g"
+    "-Og"
+    "-fno-omit-frame-pointer")
+  if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+    list(APPEND DEBUG_CXXFLAGS
+      "-Wlogical-op"
+      "-Wuseless-cast")
+    if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6")
+      list(APPEND DEBUG_CXXFLAGS
+        "-Wmisleading-indentation"
+        "-Wduplicated-cond"
+        "-Wnull-dereference")
+      if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "7")
+        list(APPEND DEBUG_CXXFLAGS
+          "-Wduplicated-branches")
+      endif()
+    endif()
+  endif()
+  add_compile_options("$<$<CONFIG:Debug>:${DEBUG_CXXFLAGS}>")
+
+  set(DEBUG_LDFLAGS
+    "-fsanitize=undefined")
+  # add_link_options was introduced in version 3.13.
+  if(${CMAKE_VERSION} VERSION_LESS 3.13)
+    set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${DEBUG_LDFLAGS}")
+  else()
+    add_link_options("$<$<CONFIG:Debug>:${DEBUG_LDFLAGS}>")
+  endif()
+else()
+  message(STATUS
+    "No additional compiler flags were set, "
+    "because your compiler was not anticipated.")
+endif()
--- a/man/CMakeLists.txt
+++ b/man/CMakeLists.txt
@ -0,0 +1,13 @@
+include(GNUInstallDirs)
+
+add_custom_command(
+  OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1"
+  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
+  DEPENDS "${PROJECT_NAME}.1.adoc"
+  COMMAND "${PROJECT_SOURCE_DIR}/man/build_manpage.sh"
+  ARGS "${PROJECT_VERSION}")
+
+add_custom_target(man ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1")
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1
+  DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
--- a/man/build_manpage.sh
+++ b/man/build_manpage.sh
@ -0,0 +1,13 @@
+#!/bin/sh
+
+name="mastorss"
+
+if [ -n "${1}" ]; then
+    dir=$(dirname "${0}")
+    version=${1}
+    cp -vf "${dir}/${name}.1.adoc" .
+    sed -Ei "s/(Revision: +)[0-9]+\.[0-9]\.[0-9]/\1${version}/" "${name}.1.adoc"
+    a2x --doctype manpage --format manpage --no-xmllint "${name}.1.adoc"
+else
+    echo "usage: ${0} VERSION" >&2
+fi
--- a/man/mastorss.1.adoc
+++ b/man/mastorss.1.adoc
@ -0,0 +1,190 @@
+= mastorss(1)
+:doctype:       manpage
+:Author:        tastytea
+:Email:         tastytea@tastytea.de
+:Date:          2019-12-25
+:Revision:      0.0.0
+:man source:    mastorss
+:man manual:    General Commands Manual
+
+== NAME
+
+mastorss - Another RSS to Mastodon bot.
+
+== SYNOPSIS
+
+*mastorss* [--help|--version] <profile>
+
+== DESCRIPTION
+
+*mastorss* reads RSS feeds and posts the items via the Mastodon API. Does not
+support Atom at the moment.
+
+== OPTIONS
+
+*--help*::
+Show help message.
+
+*--version*::
+Show version, copyright and license.
+
+== USAGE
+
+Put `watchwords.json` into `${XDG_CONFIG_HOME}/mastorss/`. Launch with profile
+name. The first occurence of every watchword in an RSS item will be turned into
+a hashtag. For profile-specific watchwords see the example in
+`watchwords.json`. In the first run only the newest entry is posted.
+
+The profile is the identifier for a feed and can't be named "global".
+
+.Launch mastorss with the profile “example”.
+================================================================================
+[source,shellsession]
+--------------------------------------------------------------------------------
+% mastorss example
+--------------------------------------------------------------------------------
+================================================================================
+
+=== Configuration
+
+If the profile does not exist yet, a configuration will be created interactively
+and then saved to `${XDG_CONFIG_HOME}/mastorss/config-<profile>.json`.
+
+*access_token*::
+The API token needed to communicate with the Mastodon API on the _instance_
+you're using to post.
+
+*append*::
+This string will be appended to every post.
+
+*feedurl*::
+The URI of the source feed.
+
+*fixes*::
+Array of regular expressions that should be deleted from the text. For
+information about the syntax see *perlre*(1).
+
+*instance*::
+Hostname of the instance you're using to post.
+
+*interval*::
+Time to wait between posts.
+
+*max_size*::
+Maximum number of characters a post can have.
+
+*skip*::
+Array of strings with titles of posts that should be skipped. Matched against
+the beginning of the title; this means: “Good Day” will match “Good Day in
+Happytown” but not “A Good Day in Happytown”.
+
+*titles_as_cw*::
+If true, the title will be used as the subject (also known as spoiler warning or
+content warning) of the post.
+
+*titles_only*::
+If true, only post titles, no descriptions.
+
+== EXAMPLES
+
+=== Configuration file
+
+[source,json]
+--------------------------------------------------------------------------------
+{
+    "example" :
+    {
+        "access_token" : "123abc",
+        "append" : "#bot",
+        "feedurl" : "https://example.com/feed.rss",
+        "fixes" :
+        [
+            "delete this",
+            "<p>[Rr]ead more(\.{3}|…)</p>"
+        ],
+        "instance" : "newsbots.eu",
+        "interval" : 600,
+        "max_size" : 500,
+        "skip" :
+        [
+            "If the title starts with this, skip it",
+            "Skip me too!"
+        ],
+        "titles_as_cw" : true,
+        "titles_only" : false
+    }
+}
+--------------------------------------------------------------------------------
+
+== PROTOCOL SUPPORT
+
+Currently only HTTP and HTTPS are supported.
+
+// == PROXY SERVERS
+
+// Since mastorss is built on libcurl, it respects the same proxy environment
+// variables. See *curl*(1), section _ENVIRONMENT_.
+
+// .Tunnel connections through tor.
+// ================================================================================
+// [source,shell]
+// --------------------------------------------------------------------------------
+// ALL_PROXY="socks4a://[::1]:9050" mastorss example
+// --------------------------------------------------------------------------------
+// ================================================================================
+
+== PROXY SERVERS
+
+mastorss supports HTTP proxies set via the environment variable
+_http_proxy_. Accepted format: _\http://[user[:password]@]host[:port]/_ No SOCKS
+proxy support yet, sorry.
+
+.Use mastorss with a proxy server
+================================================================================
+[source,shellsession]
+--------------------------------------------------------------------------------
+% http_proxy="http://localhost:3128/" mastorss example
+--------------------------------------------------------------------------------
+================================================================================
+
+== FILES
+
+*Configuration file directory*::
+`${XDG_CONFIG_HOME}/mastorss/`
+
+`${XDG_CONFIG_HOME}` is usually `~/.config`.
+
+== ERROR CODES
+
+[cols=">,<"]
+|===========================================================
+| Code | Explanation
+
+|    1 | No profile specified.
+|    2 | Network error.
+|    3 | File error.
+|    4 | Mastodon API error.
+|    9 | Unknown error.
+|===========================================================
+
+== DEBUGGING
+
+Define the variable `MASTORSS_DEBUG` to enable debug output.
+
+.Debug mastorss while using the profile “example”.
+================================================================================
+[source,shell]
+--------------------------------------------------------------------------------
+MASTORSS_DEBUG=1 mastorss example
+--------------------------------------------------------------------------------
+================================================================================
+
+== REPORTING BUGS
+
+Bugtracker: https://schlomp.space/tastytea/mastorss/issues
+
+E-mail: tastytea@tastytea.de
+
+== SEE ALSO
+
+*perlre*(1), *crontab*(1), *crontab*(5)
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@ -0,0 +1,40 @@
+include(GNUInstallDirs)
+
+# The minimum versions should be in Debian oldstable, if possible.
+find_package(Boost 1.62 REQUIRED COMPONENTS filesystem log regex)
+find_package(jsoncpp REQUIRED CONFIG) # 1.7.4 (Debian buster) has no version.
+find_package(CURL 7.52 REQUIRED)
+find_package(Threads REQUIRED)
+find_package(restclient-cpp 0.5 CONFIG)
+find_package(mastodon-cpp REQUIRED CONFIG)
+
+if(NOT ${restclient-cpp_FOUND})
+  find_file(restclient_h NAMES "restclient-cpp/restclient.h"
+    PATHS "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}")
+  if("${restclient_h}" STREQUAL "restclient_h-NOTFOUND")
+    message(FATAL_ERROR "Could not find restclient-cpp.")
+  else()
+    message(WARNING
+      "Your distribution of restclient-cpp doesn't contain the *Config.cmake "
+      "recipes, but the files seem to be in the standard directories. "
+      "Let's hope this works.")
+  endif()
+endif()
+
+# Write version in header.
+configure_file (
+  "${PROJECT_SOURCE_DIR}/src/version.hpp.in"
+  "${PROJECT_BINARY_DIR}/version.hpp")
+
+include_directories("${PROJECT_BINARY_DIR}")
+
+file(GLOB sources *.cpp)
+add_executable(mastorss ${sources})
+target_link_libraries(mastorss
+  PRIVATE
+  jsoncpp restclient-cpp mastodon-cpp::mastodon-cpp
+  Boost::filesystem Boost::log Boost::regex)
+if(BUILD_SHARED_LIBS)
+  target_compile_definitions(mastorss PRIVATE "BOOST_ALL_DYN_LINK=1")
+endif()
+install(TARGETS mastorss DESTINATION "${CMAKE_INSTALL_BINDIR}")
--- a/src/config.cpp
+++ b/src/config.cpp
@ -1,5 +1,5 @@
 /*  This file is part of mastorss.
- *  Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
@ -14,181 +14,261 @@
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

-#include <iostream>
-#include <string>
-#include <cstdint>
-#include <fstream>
-#include <sstream>
-#include <experimental/filesystem>
-#include <jsoncpp/json/json.h>
+#include "config.hpp"
+#include "exceptions.hpp"
+
+#include <boost/log/trivial.hpp>
 #include <mastodon-cpp/mastodon-cpp.hpp>
-#include "mastorss.hpp"

-using std::cout;
-using std::cerr;
-using std::cin;
-using std::string;
-namespace fs = std::experimental::filesystem;
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+#include <sstream>
+#include <stdexcept>
+#include <utility>

-std::uint16_t read_config(string &instance, string &access_token, string &feedurl)
+namespace mastorss
 {
-    bool config_changed = false;
+using std::stoul;
+using std::getenv;
+using std::ifstream;
+using std::ofstream;
+using std::cin;
+using std::cout;
+using std::stringstream;
+using std::getline;
+using std::move;

-    // Read config file, get access token
-    std::ifstream file(filepath + "config-" + profile + ".json");
-    if (file.is_open())
+std::ostream &operator <<(std::ostream &out, const ProfileData &data)
+{
+    out << "access_token: \"" << data.access_token << "\", "
+        << "append: \"" << data.append << "\", "
+        << "feedurl: \"" << data.feedurl << "\", "
+        << "fixes: [";
+    for (const auto &fix : data.fixes)
    {
-        std::stringstream json;
-        json << file.rdbuf();
-        file.close();
-        json >> config;
+        out << '"' << fix << '"';
+        if (fix != *data.fixes.rbegin())
+        {
+            out << ", ";
+        }
+    }
+    out << "], "
+        << "instance: \"" << data.instance << "\", "
+        << "interval: " << data.interval << ", "
+        << "last_guid: \"" << data.last_guid << "\", "
+        << "max_size: " << data.max_size << ", "
+        << "skip: [";
+    for (const auto &skip : data.skip)
+    {
+        out << '"' << skip << '"';
+        if (skip != *data.skip.rbegin())
+        {
+            out << ", ";
+        }
+    }
+    out << "], "
+        << "titles_as_cw: " << data.titles_as_cw << ", "
+        << "titles_only: " << data.titles_only;

-        instance = config[profile]["instance"].asString();
-        access_token = config[profile]["access_token"].asString();
-        feedurl = config[profile]["feedurl"].asString();
-        if (!config[profile]["max_size"].isNull())
-        {
-            max_size = config[profile]["max_size"].asUInt();
-        }
-        else
-        {
-            config[profile]["max_size"] = max_size;
-            config_changed = true;
-        }
+    return out;
+}
+
+Config::Config(string profile)
+    :_profile{move(profile)}
+{
+    const fs::path filename = get_filename();
+    BOOST_LOG_TRIVIAL(debug) << "Config filename is: " << filename;
+
+    ifstream file{filename.c_str()};
+    if (file.good())
+    {
+        stringstream rawjson;
+        rawjson << file.rdbuf();
+        rawjson >> _json;
+        parse();
    }
    else
    {
-        cout << "Config file not found. Building new one.\n";
-        fs::create_directory(filepath);
+        generate();
    }
-
-    if (instance.empty())
-    {
-        cout << "Instance: ";
-        std::getline(cin, instance);
-        config[profile]["instance"] = instance;
-        config_changed = true;
-    }
-    if (access_token.empty())
-    {
-        cout << "No access token found.\n";
-        string client_id, client_secret, url;
-        Mastodon::API masto(instance, "");
-        Mastodon::return_call ret
-            = masto.register_app1("mastorss",
-                                  "urn:ietf:wg:oauth:2.0:oob",
-                                  "write",
-                                  "https://schlomp.space/tastytea/mastorss",
-                                  client_id,
-                                  client_secret,
-                                  url);
-        if (!ret)
-        {
-            string code;
-            cout << "Visit " << url << " to authorize this application.\n";
-            cout << "Insert code: ";
-            std::getline(cin, code);
-
-            ret = masto.register_app2(client_id,
-                                      client_secret,
-                                      "urn:ietf:wg:oauth:2.0:oob",
-                                      code,
-                                      access_token);
-            if (!ret)
-            {
-                config[profile]["access_token"] = access_token;
-                config_changed = true;
-            }
-            else
-            {
-                cerr << "Error code: " << ret.error_code << '\n';
-                return ret.error_code;
-            }
-        }
-        else
-        {
-            cerr << "Error code: " << ret.error_code << '\n';
-            return ret.error_code;
-        }
-
-    }
-    if (feedurl.empty())
-    {
-        cout << "feedurl: ";
-        std::getline(cin, feedurl);
-        config[profile]["feedurl"] = feedurl;
-        config_changed = true;
-    }
-    if (config[profile]["titles_only"].isNull())
-    {
-        string titles_only;
-        cout << "post only titles? [y/n]: ";
-        std::getline(cin, titles_only);
-        if (titles_only[0] == 'y')
-        {
-            config[profile]["titles_only"] = true;
-        }
-        else
-        {
-            config[profile]["titles_only"] = false;
-        }
-        config_changed = true;
-    }
-    if (config[profile]["titles_as_cw"].isNull())
-    {
-        string titles_as_cw;
-        cout << "Use titles as CW? [y/n]: ";
-        std::getline(cin, titles_as_cw);
-        if (titles_as_cw[0] == 'y')
-        {
-            config[profile]["titles_as_cw"] = true;
-        }
-        else
-        {
-            config[profile]["titles_as_cw"] = false;
-        }
-        config_changed = true;
-    }
-    if (config[profile]["append"].isNull())
-    {
-        string append;
-        cout << "Append this string to each post []: ";
-        std::getline(cin, append);
-        config[profile]["append"] = append;
-        config_changed = true;
-    }
-    if (config[profile]["interval"].isNull())
-    {
-        string interval;
-        cout << "Interval between posts in seconds [60]: ";
-        std::getline(cin, interval);
-        if (interval.empty())
-        {
-            interval = "60";
-        }
-        config[profile]["interval"] = Json::Value::UInt64(std::stoul(interval));
-        config_changed = true;
-    }
-    if (config_changed)
-    {
-        write_config();
-    }
-
-    return 0;
 }

-
-bool write_config()
+fs::path Config::get_filename() const
 {
-    std::ofstream outfile(filepath + "config-" + profile + ".json");
-    if (outfile.is_open())
-    {
-        outfile.write(config.toStyledString().c_str(),
-                      config.toStyledString().length());
-        outfile.close();
+    char *envdir = getenv("XDG_CONFIG_HOME");
+    fs::path dir;

-        return true;
+    if (envdir != nullptr)
+    {
+        dir = envdir;
+    }
+    else
+    {
+        envdir = getenv("HOME");
+        if (envdir != nullptr)
+        {
+            dir = fs::path{envdir} /= ".config";
+        }
+        else
+        {
+            throw FileException{"Couldn't find configuration directory."};
+        }
    }

-    return false;
+    dir /= "mastorss";
+    if (fs::create_directories(dir))
+    {
+        BOOST_LOG_TRIVIAL(debug) << "Created config dir: " << dir;
+    }
+
+    return dir /= "config-" + _profile + ".json";
 }
+
+void Config::generate()
+{
+    string line;
+
+    cout << "Instance (domain): ";
+    getline(cin, line);
+    data.instance = line;
+
+    data.access_token = get_access_token(line);
+
+    cout << "URL of the feed: ";
+    std::getline(cin, line);
+    data.feedurl = line;
+
+    cout << "Post only titles? [y/n]: ";
+    std::getline(cin, line);
+    if (line[0] == 'y')
+    {
+        data.titles_only = true;
+    }
+    else
+    {
+        data.titles_only = false;
+    }
+
+    cout << "Post titles as cw? [y/n]: ";
+    std::getline(cin, line);
+    if (line[0] == 'y')
+    {
+        data.titles_as_cw = true;
+    }
+    else
+    {
+        data.titles_as_cw = false;
+    }
+
+    cout << "Append this string to each post: ";
+    std::getline(cin, line);
+    data.append = line;
+
+    cout << "Interval between posts in seconds [30]: ";
+    std::getline(cin, line);
+    if (line.empty())
+    {
+        line = "30";
+    }
+    data.interval = static_cast<uint32_t>(stoul(line));
+
+    cout << "Maximum size of posts [500]: ";
+    std::getline(cin, line);
+    if (line.empty())
+    {
+        line = "500";
+    }
+    data.max_size = stoul(line);
+
+    BOOST_LOG_TRIVIAL(debug) << "Generated configuration.";
+    write();
+}
+
+string Config::get_access_token(const string &instance) const
+{
+    string client_id;
+    string client_secret;
+    string url;
+    Mastodon::API masto(instance, "");
+
+    auto ret = masto.register_app1("mastorss", "urn:ietf:wg:oauth:2.0:oob",
+                                   "write",
+                                   "https://schlomp.space/tastytea/mastorss",
+                                   client_id, client_secret, url);
+
+    if (ret)
+    {
+        string code;
+        string access_token;
+
+        cout << "Visit " << url << " to authorize this application.\n";
+        cout << "Insert code: ";
+        std::getline(cin, code);
+        ret = masto.register_app2(client_id, client_secret,
+                                  "urn:ietf:wg:oauth:2.0:oob",
+                                  code, access_token);
+        if (ret)
+        {
+            BOOST_LOG_TRIVIAL(debug) << "Got access token: " << access_token;
+            return access_token;
+        }
+    }
+
+    throw MastodonException{ret.error_code};
+}
+
+void Config::parse()
+{
+    data.access_token = _json[_profile]["access_token"].asString();
+    data.append = _json[_profile]["append"].asString();
+    data.feedurl = _json[_profile]["feedurl"].asString();
+    for (const auto &fix : _json[_profile]["fixes"])
+    {
+        data.fixes.push_back(fix.asString());
+    }
+    data.instance = _json[_profile]["instance"].asString();
+    if (!_json[_profile]["interval"].isNull())
+    {
+        data.interval =
+            static_cast<uint32_t>(_json[_profile]["interval"].asUInt64());
+    }
+    data.last_guid = _json[_profile]["last_guid"].asString();
+    if (!_json[_profile]["max_size"].isNull())
+    {
+        data.max_size = _json[_profile]["max_size"].asUInt64();
+    }
+    for (const auto &skip : _json[_profile]["skip"])
+    {
+        data.skip.push_back(skip.asString());
+    }
+    data.titles_as_cw = _json[_profile]["titles_as_cw"].asBool();
+    data.titles_only = _json[_profile]["titles_only"].asBool();
+
+    BOOST_LOG_TRIVIAL(debug) << "Read config: " << data;
+}
+
+void Config::write()
+{
+    _json[_profile]["access_token"] = data.access_token;
+    _json[_profile]["append"] = data.append;
+    _json[_profile]["feedurl"] = data.feedurl;
+    // Leave fixes.
+    _json[_profile]["instance"] = data.instance;
+    _json[_profile]["interval"] = data.interval;
+    _json[_profile]["last_guid"] = data.last_guid;
+    _json[_profile]["max_size"]
+        = static_cast<Json::Value::UInt64>(data.max_size);
+    // Leave skip.
+    _json[_profile]["titles_as_cw"] = data.titles_as_cw;
+    _json[_profile]["titles_only"] = data.titles_only;
+
+    ofstream file{get_filename().c_str()};
+    if (file.good())
+    {
+        file << _json.toStyledString();
+    }
+
+    BOOST_LOG_TRIVIAL(debug) << "Wrote config file.";
+}
+} // namespace mastorss
--- a/src/config.hpp
+++ b/src/config.hpp
@ -0,0 +1,86 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MASTORSS_CONFIG_HPP
+#define MASTORSS_CONFIG_HPP
+
+#include <boost/filesystem.hpp>
+#include <jsoncpp/json/json.h>
+
+#include <cstdint>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace mastorss
+{
+namespace fs = boost::filesystem;
+using std::uint32_t;
+using std::string;
+using std::string_view;
+using std::vector;
+
+/*!
+ *  @brief  The configuration for a profile as data structure.
+ *
+ *  @since  0.10.0
+ */
+struct ProfileData
+{
+    string access_token;
+    string append;
+    string feedurl;
+    vector<string> fixes;
+    string instance;
+    uint32_t interval{30};
+    string last_guid;
+    size_t max_size{500};
+    vector<string> skip;
+    bool titles_as_cw{false};
+    bool titles_only{false};
+
+    friend std::ostream &operator <<(std::ostream &out,
+                                     const ProfileData &data);
+};
+
+/*!
+ *  @brief  A configuration file.
+ *
+ *  @since  0.10.0
+ */
+class Config
+{
+public:
+    explicit Config(string profile);
+
+    ProfileData data;
+
+    void write();
+
+private:
+    const string _profile;
+    Json::Value _json;
+
+    [[nodiscard]]
+    fs::path get_filename() const;
+    void generate();
+    [[nodiscard]]
+    string get_access_token(const string &instance) const;
+    void parse();
+};
+} // namespace mastorss
+
+#endif  // MASTORSS_CONFIG_HPP
--- a/src/document.cpp
+++ b/src/document.cpp
@ -0,0 +1,235 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "document.hpp"
+#include "exceptions.hpp"
+#include "version.hpp"
+
+#include <boost/log/trivial.hpp>
+#include <boost/property_tree/xml_parser.hpp>
+#include <boost/regex.hpp>
+#include <mastodon-cpp/mastodon-cpp.hpp>
+#include <restclient-cpp/connection.h>
+
+#include <list>
+#include <sstream>
+#include <string>
+#include <utility>
+
+namespace mastorss
+{
+using boost::regex;
+using boost::regex_replace;
+using std::list;
+using std::istringstream;
+using std::string;
+using std::move;
+
+bool operator !=(const Item &a, const Item &b)
+{
+    return a.guid != b.guid;
+}
+
+Document::Document(Config &cfg)
+    : _cfg{cfg}
+    , _profile{cfg.data}
+{
+    RestClient::init();
+
+    download();
+}
+
+Document::~Document()
+{
+    RestClient::disable();
+}
+
+void Document::download(const string &uri)
+{
+    RestClient::Connection connection{uri};
+    connection.SetUserAgent(string("mastorss/").append(version));
+    connection.FollowRedirects(false);
+
+    RestClient::Response response{connection.get("")};
+
+    switch (response.code)
+    {
+    case 200:
+    {
+        _raw_doc = response.body;
+        BOOST_LOG_TRIVIAL(debug) << "Downloaded feed: " << _profile.feedurl;
+        break;
+    }
+    case 301:
+    case 308:
+    {
+        _profile.feedurl = extract_location(response.headers);
+        if (_profile.feedurl.empty())
+        {
+            throw HTTPException{response.code};
+        }
+
+        BOOST_LOG_TRIVIAL(debug) << "Feed has new location (permanent): "
+                                 << _profile.feedurl;
+        _cfg.write();
+        download();
+        break;
+    }
+    case 302:
+    case 303:
+    case 307:
+    {
+        const string newuri{extract_location(response.headers)};
+        if (newuri.empty())
+        {
+            throw HTTPException{response.code};
+        }
+
+        BOOST_LOG_TRIVIAL(debug) << "Feed has new location (temporary): "
+                                 << _profile.feedurl;
+        download(newuri);
+        break;
+    }
+    case -1:
+    {
+        throw CURLException{errno};
+    }
+    default:
+    {
+        throw HTTPException{response.code};
+    }
+    }
+}
+
+void Document::download()
+{
+    download(_profile.feedurl);
+}
+
+void Document::parse()
+{
+    pt::ptree tree;
+    istringstream iss{_raw_doc};
+    pt::read_xml(iss, tree);
+
+    if (tree.front().first == "rss")
+    {
+        BOOST_LOG_TRIVIAL(debug) << "RSS detected.";
+        parse_rss(tree);
+    }
+}
+
+void Document::parse_rss(const pt::ptree &tree)
+{
+    for (const auto &child : tree.get_child("rss.channel"))
+    {
+        if (child.first == "item")
+        {
+            const auto &rssitem = child.second;
+
+            string guid{rssitem.get<string>("guid")};
+            if (guid.empty())   // We hope either <guid> or <link> are present.
+            {
+                guid = rssitem.get<string>("link");
+            }
+            if (guid == _profile.last_guid)
+            {
+                break;
+            }
+
+            bool skipthis{false};
+            string title{rssitem.get<string>("title")};
+            for (const auto &skip : _profile.skip)
+            {
+                if (title.substr(0, skip.length()) == skip)
+                {
+                    skipthis = true;
+                    break;
+                }
+            }
+            if (skipthis)
+            {
+                BOOST_LOG_TRIVIAL(debug) << "Skipped GUID: " << guid;
+                continue;
+            }
+
+            Item item;
+            item.description = [&]
+            {
+                string desc
+                    {remove_html(rssitem.get<string>("description"))};
+                for (const auto &fix : _profile.fixes)
+                {
+                    desc = regex_replace(desc, regex{fix}, "");
+                }
+                return desc;
+            }();
+            item.guid = move(guid);
+            item.link = rssitem.get<string>("link");
+            item.title = move(title);
+            new_items.push_front(item);
+
+            BOOST_LOG_TRIVIAL(debug) << "Found GUID: " << item.guid;
+
+            if (_profile.last_guid.empty())
+            {
+                BOOST_LOG_TRIVIAL(debug) << "This is the first run.";
+                break;
+            }
+        }
+    }
+}
+
+string Document::remove_html(string html) const
+{
+    html = Mastodon::unescape_html(html); // Decode HTML entities.
+
+    html = regex_replace(html, regex{"<p>"}, "\n\n");
+
+    const list re_list
+        {
+            regex{R"(<!\[CDATA\[)"},      // CDATA beginning.
+            regex{R"(\]\]>)"},            // CDATA end.
+            regex{"<[^>]+>"},             // HTML tags.
+            regex{R"(\r)"},               // Carriage return.
+            regex{"\\n[ \\t\u00a0]+\\n"}, // Whitespace between newlines.
+            regex{R"(^\n+)"}              // Newlines at the beginning.
+        };
+    for (const regex &re : re_list)
+    {
+        html = regex_replace(html, re, "");
+    }
+
+    // Remove excess newlines.
+    html = regex_replace(html, regex{R"(\n{3,})"}, "\n\n");
+    // Replace single newlines with spaces (?<= is lookbehind, ?= is lookahead).
+    html = regex_replace(html, regex{R"((?<=[^\n])\n(?=[^\n]))"}, " ");
+
+    BOOST_LOG_TRIVIAL(debug) << "Converted HTML to text.";
+
+    return html;
+}
+
+string Document::extract_location(const RestClient::HeaderFields &headers) const
+{
+    string location{headers.at("Location")};
+    if (location.empty())
+    {
+        location = headers.at("location");
+    }
+    return location;
+}
+} // namespace mastorss
--- a/src/document.hpp
+++ b/src/document.hpp
@ -0,0 +1,83 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MASTORSS_DOCUMENT_HPP
+#define MASTORSS_DOCUMENT_HPP
+
+#include "config.hpp"
+
+#include <boost/property_tree/ptree.hpp>
+#include <restclient-cpp/restclient.h>
+
+#include <string>
+#include <list>
+
+namespace mastorss
+{
+namespace pt = boost::property_tree;
+using std::string;
+using std::list;
+
+/*!
+ *  @brief  An Item of a feed.
+ *
+ *  @since  0.10.0
+ */
+struct Item
+{
+    string description;
+    string guid;
+    string link;
+    string title;
+
+    friend bool operator !=(const Item &a, const Item &b);
+};
+
+/*!
+ *  @brief  A feed.
+ *
+ *  @since  0.10.0
+ */
+class Document
+{
+public:
+    explicit Document(Config &cfg);
+    ~Document();
+    Document(const Document &other) = default;
+    Document &operator=(const Document &other) = delete;
+    Document(Document &&other) = default;
+    Document &operator=(Document &&other) = delete;
+
+    list<Item> new_items;
+
+    void download();
+    void download(const string &uri);
+    void parse();
+
+private:
+    Config &_cfg;
+    ProfileData &_profile;
+    string _raw_doc;
+
+    void parse_rss(const pt::ptree &tree);
+    [[nodiscard]]
+    string remove_html(string html) const;
+    [[nodiscard]]
+    string extract_location(const RestClient::HeaderFields &headers) const;
+};
+} // namespace mastorss
+
+#endif  // MASTORSS_DOCUMENT_HPP
--- a/src/exceptions.cpp
+++ b/src/exceptions.cpp
@ -0,0 +1,63 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "exceptions.hpp"
+
+#include <utility>
+
+using namespace mastorss;
+using std::to_string;
+using std::move;
+
+HTTPException::HTTPException(const int error)
+    : error_code{static_cast<uint16_t>(error)}
+{}
+
+const char *HTTPException::what() const noexcept
+{
+    static const string error_string{"HTTP error: " + to_string(error_code)};
+    return error_string.c_str();
+}
+
+CURLException::CURLException(const int error)
+    : error_code{static_cast<uint16_t>(error)}
+{}
+
+const char *CURLException::what() const noexcept
+{
+    static const string error_string{"libCURL error: " + to_string(error_code)};
+    return error_string.c_str();
+}
+
+MastodonException::MastodonException(const int error)
+    : error_code{static_cast<uint16_t>(error)}
+{}
+
+const char *MastodonException::what() const noexcept
+{
+    static const string error_string{"Mastodon error: "
+                                     + to_string(error_code)};
+    return error_string.c_str();
+}
+
+FileException::FileException(string message)
+    : _message{move(message)}
+{}
+
+const char *FileException::what() const noexcept
+{
+    return _message.c_str();
+}
--- a/src/exceptions.hpp
+++ b/src/exceptions.hpp
@ -0,0 +1,76 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MASTORSS_EXCEPTIONS_HPP
+#define MASTORSS_EXCEPTIONS_HPP
+
+#include <cstdint>
+#include <exception>
+#include <string>
+
+namespace mastorss
+{
+using std::uint16_t;
+using std::exception;
+using std::string;
+
+class HTTPException : public exception
+{
+public:
+    const uint16_t error_code;
+
+    explicit HTTPException(int error);
+
+    [[nodiscard]]
+    const char *what() const noexcept override;
+};
+
+class CURLException : public exception
+{
+public:
+    const uint16_t error_code;
+
+    explicit CURLException(int error);
+
+    [[nodiscard]]
+    const char *what() const noexcept override;
+};
+
+class MastodonException : public exception
+{
+public:
+    const uint16_t error_code;
+
+    explicit MastodonException(int error);
+
+    [[nodiscard]]
+    const char *what() const noexcept override;
+};
+
+class FileException : public exception
+{
+public:
+    explicit FileException(string message);
+
+    [[nodiscard]]
+    const char *what() const noexcept override;
+
+private:
+    const string _message;
+};
+} // namespace mastorss
+
+#endif  // MASTORSS_EXCEPTIONS_HPP
--- a/src/http.cpp
+++ b/src/http.cpp
@ -1,87 +0,0 @@
-/*  This file is part of mastorss.
- *  Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, version 3.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <string>
-#include <cstdint>
-#include <iostream>
-#include <istream>
-#include <ostream>
-#include <sstream>
-#include <curlpp/cURLpp.hpp>
-#include <curlpp/Easy.hpp>
-#include <curlpp/Options.hpp>
-#include <curlpp/Exception.hpp>
-#include <curlpp/Infos.hpp>
-#include "mastorss.hpp"
-
-using std::string;
-using std::cerr;
-
-namespace curlopts = curlpp::options;
-
-void curlpp_init()
-{
-    curlpp::initialize();
-}
-
-std::uint16_t http_get(const string &feedurl, string &answer,
-                       const string &useragent)
-{
-    try
-    {
-        std::ostringstream oss;
-        curlpp::Easy request;
-        request.setOpt<curlopts::Url>(feedurl);
-        request.setOpt<curlopts::UserAgent>(useragent);
-        request.setOpt<curlopts::HttpHeader>(
-        {
-            "Connection: close",
-        });
-        request.setOpt<curlopts::FollowLocation>(true);
-        request.setOpt<curlopts::WriteStream>(&oss);
-
-        request.perform();
-        std::uint16_t ret = curlpp::infos::ResponseCode::get(request);
-        if (ret == 200 || ret == 302 || ret == 307)
-        {   // OK or Found or Temporary Redirect
-            answer = oss.str();
-        }
-        else if (ret == 301 || ret == 308)
-        {   // Moved Permanently or Permanent Redirect
-            // FIXME: The new URL should be passed back somehow
-            answer = oss.str();
-        }
-        else
-        {
-            return ret;
-        }
-
-        return 0;
-    }
-    // TODO: More error codes
-    catch (curlpp::RuntimeError &e)
-    {
-        cerr << "RUNTIME ERROR: " << e.what() << std::endl;
-        return 0xffff;
-    }
-    catch (curlpp::LogicError &e)
-    {
-        cerr << "LOGIC ERROR: " << e.what() << std::endl;
-        return 0xffff;
-    }
-
-    return 0;
-}
--- a/src/main.cpp
+++ b/src/main.cpp
@ -0,0 +1,146 @@
+#include "config.hpp"
+#include "document.hpp"
+#include "exceptions.hpp"
+#include "mastoapi.hpp"
+#include "version.hpp"
+
+#include <boost/log/core.hpp>
+#include <boost/log/trivial.hpp>
+#include <boost/log/utility/setup/console.hpp>
+
+#include <chrono>
+#include <cstdlib>
+#include <iostream>
+#include <stdexcept>
+#include <string_view>
+#include <thread>
+#include <vector>
+
+using namespace mastorss;
+using std::chrono::seconds;
+using std::getenv;
+using std::cout;
+using std::cerr;
+using std::runtime_error;
+using std::string_view;
+using std::vector;
+using std::this_thread::sleep_for;
+
+namespace mastorss
+{
+namespace error
+{
+constexpr int noprofile = 1;
+constexpr int network = 2;
+constexpr int file = 3;
+constexpr int mastodon = 4;
+constexpr int unknown = 9;
+} // namespace error
+
+void print_version();
+void print_help(const string_view &command);
+
+void print_version()
+{
+    cout << "mastorss " << version << "\n"
+        "Copyright (C) 2019 tastytea <tastytea@tastytea.de>\n"
+        "License GPLv3: GNU GPL version 3 "
+        "<https://www.gnu.org/licenses/gpl-3.0.html>.\n"
+        "This program comes with ABSOLUTELY NO WARRANTY. "
+        "This is free software,\n"
+        "and you are welcome to redistribute it under certain conditions.\n";
+}
+
+void print_help(const string_view &command)
+{
+    cerr << "Usage: " << command << " [--version|--help] <profile>\n";
+}
+} // namespace mastorss
+
+int main(int argc, char *argv[])
+{
+    const vector<string_view> args(argv, argv + argc);
+
+    if (getenv("MASTORSS_DEBUG") == nullptr)
+    {
+        boost::log::core::get()->set_filter
+            (boost::log::trivial::severity >= boost::log::trivial::info);
+    }
+    else
+    {
+        boost::log::core::get()->set_filter
+            (boost::log::trivial::severity >= boost::log::trivial::debug);
+    }
+
+    if (args.size() == 1)
+    {
+        print_help(args[0]);
+        return error::noprofile;
+    }
+
+    if (args.size() > 1)
+    {
+        if (args[1] == "--version")
+        {
+            print_version();
+        }
+        else if (args[1] == "--help")
+        {
+            print_help(args[0]);
+        }
+        else
+        {
+            const string_view profile{args[1]};
+            BOOST_LOG_TRIVIAL(debug) << "Using profile: " << profile;
+
+            try
+            {
+                Config cfg{profile.data()};
+                Document doc{cfg};
+                doc.parse();
+
+                MastoAPI masto{cfg.data};
+                if (!doc.new_items.empty())
+                {
+                    for (const auto &item : doc.new_items)
+                    {
+                        masto.post_item(item);
+                        cfg.data.last_guid = item.guid;
+                        if (item != *doc.new_items.rbegin())
+                        {       // Don't sleep if this is the last item.
+                            sleep_for(seconds(cfg.data.interval));
+                        }
+                    }
+                    cfg.write();
+                }
+            }
+            catch (const FileException &e)
+            {
+                cerr << e.what() << '\n';
+                return error::file;
+            }
+            catch (const MastodonException &e)
+            {
+                cerr << e.what() << '\n';
+                return error::mastodon;
+            }
+            catch (const HTTPException &e)
+            {
+                cerr << e.what() << '\n';
+                return error::network;
+            }
+            catch (const CURLException &e)
+            {
+                cerr << e.what() << '\n';
+                return error::network;
+            }
+            catch (const runtime_error &e)
+            {
+                cerr << e.what() << '\n';
+                return error::unknown;
+            }
+        }
+    }
+
+    return 0;
+}
--- a/src/mastoapi.cpp
+++ b/src/mastoapi.cpp
@ -0,0 +1,89 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "exceptions.hpp"
+#include "mastoapi.hpp"
+
+#include <boost/log/trivial.hpp>
+
+#include <string>
+
+namespace mastorss
+{
+using std::string;
+
+MastoAPI::MastoAPI(const ProfileData &data)
+    : _profile{data}
+    , _masto{_profile.instance, _profile.access_token}
+{
+}
+
+void MastoAPI::post_item(const Item &item)
+{
+    string status{[&]
+    {
+        if (_profile.titles_as_cw)
+        {
+            if (_profile.titles_only)
+            {
+                return string{};
+            }
+            return item.description;
+        }
+
+        string s{item.title};
+        if (!_profile.titles_only)
+        {
+            s.append("\n\n" + item.description);
+        }
+        return s;
+    }()};
+    status.append("\n\n" + item.link);
+
+    if (!_profile.append.empty())
+    {
+        const size_t len{status.size()};
+        const size_t len_append{_profile.append.size() + 2};
+        const size_t len_max{_profile.max_size};
+
+        if ((len + len_append) > len_max)
+        {
+            status.resize(len_max - len_append);
+        }
+        status.append("\n\n" + _profile.append);
+    }
+
+    Mastodon::parameters params{{"status", {status}}};
+    if (_profile.titles_as_cw)
+    {
+        params.push_back({"spoiler_text", {item.title}});
+    }
+
+    const auto ret = _masto.post(Mastodon::API::v1::statuses, params);
+    if (!ret)
+    {
+        if (ret.http_error_code != 200)
+        {
+            throw HTTPException{ret.http_error_code};
+        }
+        else
+        {
+            throw MastodonException{ret.error_code};
+        }
+    }
+    BOOST_LOG_TRIVIAL(debug) << "Posted status with GUID: " << item.guid;
+}
+} // namespace mastorss
--- a/src/mastoapi.hpp
+++ b/src/mastoapi.hpp
@ -0,0 +1,40 @@
+/*  This file is part of mastorss.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MASTORSS_MASTOAPI_HPP
+#define MASTORSS_MASTOAPI_HPP
+
+#include "config.hpp"
+#include "document.hpp"
+
+#include <mastodon-cpp/mastodon-cpp.hpp>
+
+namespace mastorss
+{
+class MastoAPI
+{
+public:
+    explicit MastoAPI(const ProfileData &data);
+
+    void post_item(const Item &item);
+
+private:
+    const ProfileData &_profile;
+    Mastodon::API _masto;
+};
+} // namespace mastorss
+
+#endif  // MASTORSS_MASTOAPI_HPP
--- a/src/mastorss.cpp
+++ b/src/mastorss.cpp
@ -1,164 +0,0 @@
-/*  This file is part of mastorss.
- *  Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, version 3.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <iostream>
-#include <vector>
-#include <string>
-#include <cstdlib>  // getenv()
-#include <cstdint>
-#include <thread>
-#include <chrono>
-#include <jsoncpp/json/json.h>
-#include <mastodon-cpp/mastodon-cpp.hpp>
-#include <mastodon-cpp/easy/all.hpp>
-#include "version.hpp"
-#include "mastorss.hpp"
-
-using namespace Mastodon;
-
-using std::cout;
-using std::cerr;
-using std::cin;
-using std::endl;
-using std::string;
-using std::this_thread::sleep_for;
-using std::chrono::seconds;
-
-// Initialize global variables
-std::uint16_t max_size = 500;
-const string filepath = string(getenv("HOME")) + "/.config/mastorss/";
-Json::Value config;
-std::string profile;
-
-int main(int argc, char *argv[])
-{
-    if (argc < 2)
-    {
-        cerr << "usage: " << argv[0] << " <profile> [max size]\n";
-        return 10;
-    }
-
-    if (argc == 3)
-    {
-        max_size = std::stoi(argv[2]);
-    }
-
-    string instance = "";
-    string access_token = "";
-    string feedurl = "";
-    profile = argv[1];
-    std::uint_fast16_t ret;
-    string answer;
-    std::vector<Mastodon::Easy::Status> entries;
-
-    read_config(instance, access_token, feedurl);
-    curlpp_init();
-
-    ret = http_get(feedurl, answer, "mastorss/" + (string)global::version);
-    if (ret != 0)
-    {
-        std::cerr << "Error code: " << ret << '\n';
-        std::cerr << answer << '\n';
-        return ret;
-    }
-    entries = parse_feed(answer);
-
-    string last_entry = config[profile]["last_entry"].asString();
-    if (last_entry.empty())
-    {
-        // If no last_entry is stored in the config file,
-        // make last_entry the second-newest entry.
-        last_entry = entries.at(1).content();
-    }
-    config[profile]["last_entry"] = entries.front().content();
-
-    bool new_content = false;
-    for (auto rit = entries.rbegin(); rit != entries.rend(); ++rit)
-    {
-        if (!new_content && (*rit).content().compare(last_entry) == 0)
-        {
-            // If the last entry is found in entries,
-            // start tooting in the next loop.
-            new_content = true;
-            continue;
-        }
-        else if (!new_content)
-        {
-            continue;
-        }
-
-        Easy::return_entity<Easy::Status> ret_status;
-        Mastodon::Easy::API masto(instance, access_token);
-
-        ret_status = masto.send_post(*rit);
-
-        if (!ret_status)
-        {
-            const uint8_t err = ret_status.error_code;
-            switch (err)
-            {
-            case 110:
-            {
-                cerr << "Error " << err << ": Timeout\n";
-                break;
-            }
-            case 111:
-            {
-                cerr << "Error " << err << ": Connection refused\n";
-                cerr << "HTTP Error " << ret_status.http_error_code << endl;
-                break;
-            }
-            case 113:
-            {
-                cerr << "Error " << err << ": Could not reach host.\n";
-                break;
-            }
-            case 192:
-            case 193:
-            {
-                cerr << "Error " << err << ": curlpp error\n";
-                break;
-            }
-            default:
-            {
-                cerr << "Error " << err << '\n';
-                cerr << "HTTP status " << ret_status.http_error_code << endl;
-            }
-            }
-
-            cerr << ret_status.entity.to_string() << '\n';
-            return ret;
-        }
-
-        if (!ret_status.entity.valid())
-        {
-            cerr << "Could not send post for unknown reasons.\n";
-            cerr << "Please file a bug at "
-                "<https://schlomp.space/tastytea/mastorss/issues>.\n";
-            return 1;
-        }
-
-        if (rit != entries.rend())
-        {   // Only sleep if this is not the last entry
-            sleep_for(seconds(config[profile]["interval"].asUInt64()));
-        }
-    }
-
-    // Write the new last_entry only if no error happened.
-    write_config();
-
-    return 0;
-}
--- a/src/mastorss.hpp
+++ b/src/mastorss.hpp
@ -1,43 +0,0 @@
-/*  This file is part of mastorss.
- *  Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, version 3.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef mastorss_HPP
-#define mastorss_HPP
-
-#include <cstdint>
-#include <string>
-#include <vector>
-#include <jsoncpp/json/json.h>
-#include <mastodon-cpp/easy/easy.hpp>
-
-using std::string;
-
-extern std::uint16_t max_size;
-extern const string filepath;
-extern Json::Value config;
-extern std::string profile;
-
-std::uint16_t read_config(string &instance, string &access_token, string &feedurl);
-bool write_config();
-
-std::vector<Mastodon::Easy::Status> parse_feed(const string &xml);
-void individual_fixes(string &str);
-
-std::uint16_t http_get(const string &feedurl,
-                             string &answer, const string &useragent = "");
-void curlpp_init();
-
-#endif // mastorss_HPP
--- a/src/parse.cpp
+++ b/src/parse.cpp
@ -1,210 +0,0 @@
-/*  This file is part of mastorss.
- *  Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, version 3.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <iostream>
-#include <vector>
-#include <string>
-#include <cstdint>
-#include <regex>
-#include <sstream>
-#include <locale>
-#include <codecvt>
-#include <fstream>
-#include <algorithm>
-#include <iterator>
-#include <jsoncpp/json/json.h>
-#include <boost/property_tree/ptree.hpp>
-#include <boost/property_tree/xml_parser.hpp>
-#include <mastodon-cpp/mastodon-cpp.hpp>
-#include <mastodon-cpp/easy/all.hpp>
-#include "mastorss.hpp"
-
-using std::cerr;
-using std::string;
-namespace pt = boost::property_tree;
-
-std::vector<Mastodon::Easy::Status> parse_feed(const string &xml)
-{
-    Json::Value list;
-    std::vector<string> watchwords;
-
-    std::ifstream file(filepath + "watchwords.json");
-    if (file.is_open())
-    {
-        std::stringstream json;
-        json << file.rdbuf();
-        file.close();
-        json >> list;
-    }
-    else
-    {
-        cerr << "WARNING: " << filepath << "watchwords.json not found or not readable.\n";
-    }
-
-    // Read profile-specific hashtags or fail silently
-    const Json::Value &tags_profile = list[profile]["tags"];
-    std::transform(tags_profile.begin(), tags_profile.end(),
-                   std::back_inserter(watchwords),
-                   [](const Json::Value &value)
-                   { return value.asString(); });
-
-    // Read global hashtags or fail silently
-    const Json::Value &tags_global = list["global"]["tags"];
-    std::transform(tags_global.begin(), tags_global.end(),
-                   std::back_inserter(watchwords),
-                   [](const Json::Value &value)
-                   { return value.asString(); });
-
-    pt::ptree rss;
-    std::istringstream iss(xml);
-    pt::read_xml(iss, rss);
-    std::vector<Mastodon::Easy::Status> ret;
-
-    for (const pt::ptree::value_type &chanchild : rss.get_child("rss.channel"))
-    {
-        if (chanchild.second.size() > 0)
-        {
-            if (string(chanchild.first.data()).compare("item") == 0)
-            {
-                string title = chanchild.second.get_child("title").data();
-                string link = chanchild.second.get_child("link").data();
-                string desc = chanchild.second.get_child("description").data();
-
-                Mastodon::Easy::Status status;
-                string content = "";
-                if (config[profile]["titles_as_cw"].asBool())
-                {
-                    status.spoiler_text(Mastodon::unescape_html(title));
-                }
-                else
-                {
-                    content = title;
-                }
-                if (!config[profile]["titles_only"].asBool())
-                {
-                    if (!content.empty())
-                    {
-                        content += "\n\n";
-                    }
-                    content += desc;
-
-                    // Shrink overly long texts, to speed up replace operations
-                    if (content.length() > 2000)
-                    {
-                        content.resize(2000);
-                    }
-                }
-
-                bool skipthis = false;
-                try
-                {
-                    // Skip entries beginning with this text
-                    for (const Json::Value &v : config[profile]["skip"])
-                    {
-                        const string skip = v.asString();
-                        if (!skip.empty())
-                        {
-                            if (title.compare(0, skip.length(), skip) == 0)
-                            {
-                                skipthis = true;
-                                break;
-                            }
-                        }
-                    }
-                }
-                catch (const std::exception &e)
-                {
-                    // Node not found, no problem
-                }
-                if (skipthis)
-                {
-                    continue;
-                }
-
-                content = Mastodon::unescape_html(content);
-
-                // Try to turn the HTML into human-readable text
-                std::regex reparagraph("<p>");
-                std::regex recdata1("<!\\[CDATA\\[");
-                std::regex recdata2("\\]\\]>");
-                std::regex restrip("<[^>]*>");
-
-                individual_fixes(content);
-
-                content = std::regex_replace(content, reparagraph, "\n\n");
-                content = std::regex_replace(content, recdata1, "");
-                content = std::regex_replace(content, recdata2, "");
-                content = std::regex_replace(content, restrip, "");
-                // remove \r
-                content = std::regex_replace(content, std::regex("\\r"), "");
-                // replace NO-BREAK SPACE with space (UTF-8: 0xc2a0)
-                content = std::regex_replace(content, std::regex("\u00a0"), " ");
-                // remove whitespace between newlines
-                content = std::regex_replace(content, std::regex("\\n[ \t]+\\n"), "");
-                // remove excess newlines
-                content = std::regex_replace(content, std::regex("\\n{3,}"), "\n\n");
-
-                for (const string &hashtag : watchwords)
-                {
-                    std::regex rehashtag("([[:space:][:punct:]]|^)(" + hashtag
-                                         + ")([[:space:][:punct:]]|$)",
-                                         std::regex_constants::icase);
-                    content = std::regex_replace(content, rehashtag, "$1#$2$3",
-                                                 std::regex_constants::format_first_only);
-                }
-                // Why is this necessary? Why does ##hashtag happen?
-                content = std::regex_replace(content, std::regex("##"), "#");
-
-                uint16_t appendix_size = config[profile]["append"].asString().length();
-                if ((status.spoiler_text().size() + content.size() + link.size() + appendix_size)
-                    > static_cast<std::uint16_t>(max_size - 4))
-                {
-                    content.resize((max_size - status.spoiler_text().size()
-                                    - link.size() - appendix_size - 4));
-                    content.resize(content.rfind(' ')); // Cut at word boundary
-                    content += " […]";
-                }
-                // Remove trailing newlines
-                while (content.back() == '\n' ||
-                       content.back() == '\r')
-                {
-                    content.resize(content.length() - 1);
-                }
-
-                content += "\n\n" + link;
-
-                if (!config[profile]["append"].empty())
-                {
-                    content += "\n\n" + config[profile]["append"].asString();
-                }
-                status.content(content);
-                ret.push_back(status);
-            }
-        }
-    }
-
-    return ret;
-}
-
-// Read regular expressions from the config file and delete all matches.
-void individual_fixes(string &str)
-{
-    for (const Json::Value &v : config[profile]["fixes"])
-    {
-        std::regex refix(v.asString());
-        str = std::regex_replace(str, refix, "");
-    }
-}
--- a/src/version.hpp.in
+++ b/src/version.hpp.in
@ -1,9 +1,13 @@
-#ifndef VERSION_HPP
-#define VERSION_HPP
+#ifndef MASTORSS_VERSION_HPP
+#define MASTORSS_VERSION_HPP

-namespace global
+#include <string_view>
+
+namespace mastorss
 {
-    static constexpr char version[] = "@PROJECT_VERSION@";
-}
+using std::string_view;

-#endif // VERSION_HPP
+static constexpr string_view version = "@PROJECT_VERSION@";
+} // namespace mastorss
+
+#endif // MASTORSS_VERSION_HPP