Add libprisma from Fela for syntax highlighting.

.gitmodules

@@ -100,3 +100,6 @@
 [submodule "Telegram/ThirdParty/wayland"]
 	path = Telegram/ThirdParty/wayland
 	url = https://github.com/gitlab-freedesktop-mirrors/wayland.git
+[submodule "Telegram/ThirdParty/libprisma"]
+	path = Telegram/ThirdParty/libprisma
+	url = https://github.com/desktop-app/libprisma.git

Telegram/CMakeLists.txt

@@ -28,6 +28,7 @@ include(cmake/lib_ffmpeg.cmake)
 include(cmake/lib_stripe.cmake)
 include(cmake/lib_tgvoip.cmake)
 include(cmake/lib_tgcalls.cmake)
+include(cmake/lib_prisma.cmake)
 include(cmake/td_export.cmake)
 include(cmake/td_mtproto.cmake)
 include(cmake/td_lang.cmake)

Telegram/build/prepare/prepare.py

@@ -947,6 +947,10 @@ win:
     git checkout n11.1.5.1
 """)
 
+stage('regex', """
+    git clone -b boost-1.83.0 https://github.com/boostorg/regex.git
+""")
+
 stage('ffmpeg', """
     git clone https://github.com/FFmpeg/FFmpeg.git ffmpeg
     cd ffmpeg

Telegram/cmake/lib_prisma.cmake

@@ -0,0 +1,42 @@
+# This file is part of Telegram Desktop,
+# the official desktop application for the Telegram messaging service.
+#
+# For license and copyright information please follow this link:
+# https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+
+add_library(lib_prisma STATIC)
+init_target(lib_prisma)
+
+add_library(desktop-app::lib_prisma ALIAS lib_prisma)
+
+set(prisma_loc ${third_party_loc}/libprisma/libprisma)
+
+nice_target_sources(lib_prisma ${prisma_loc}
+PRIVATE
+    Highlight.cpp
+    Highlight.h
+    LanguageTree.cpp
+    LanguageTree.h
+    SyntaxHighlighter.cpp
+    SyntaxHighlighter.h
+    TokenList.cpp
+    TokenList.h
+)
+
+target_compile_definitions(lib_prisma
+PRIVATE
+    BOOST_NO_INTRINSIC_WCHAR_T
+    BOOST_REGEX_NO_W32
+)
+
+target_include_directories(lib_prisma
+PRIVATE
+    ${libs_loc}/regex/include
+PUBLIC
+    ${prisma_loc}
+)
+
+target_link_libraries(lib_prisma
+PRIVATE
+    desktop-app::external_boost_regex
+)