From 7605b626e8f8908da7520421f3be7c0ffc6eb67f Mon Sep 17 00:00:00 2001
From: Francesco Abbate <francesco.bbt@gmail.com>
Date: Mon, 19 Jul 2021 08:18:38 +0200
Subject: [PATCH] Add language_cpp plugins

Brought form the 1.16.12 release.

It provides support for C++ using multi-part syntax patterns. Take
the priority over C language plugins for header files.
---
 data/plugins/language_c.lua   |   2 +-
 data/plugins/language_cpp.lua | 122 ++++++++++++++++++++++++++++++++++
 2 files changed, 123 insertions(+), 1 deletion(-)
 create mode 100644 data/plugins/language_cpp.lua

diff --git a/data/plugins/language_c.lua b/data/plugins/language_c.lua
index b311884b..836e1692 100644
--- a/data/plugins/language_c.lua
+++ b/data/plugins/language_c.lua
@@ -2,7 +2,7 @@
 local syntax = require "core.syntax"
 
 syntax.add {
-  files = { "%.c$", "%.h$", "%.inl$", "%.cpp$", "%.hpp$" },
+  files = { "%.c$", "%.h$", "%.inl$" },
   comment = "//",
   patterns = {
     { pattern = "//.-\n",                type = "comment" },
diff --git a/data/plugins/language_cpp.lua b/data/plugins/language_cpp.lua
new file mode 100644
index 00000000..cf3d7cd2
--- /dev/null
+++ b/data/plugins/language_cpp.lua
@@ -0,0 +1,122 @@
+-- mod-version:1 -- lite-xl 1.16
+pcall(require, "plugins.language_c")
+
+local syntax = require "core.syntax"
+
+syntax.add {
+  files = {
+    "%.h$", "%.inl$", "%.cpp$", "%.cc$", "%.C$", "%.cxx$",
+    "%.c++$", "%.hh$", "%.H$", "%.hxx$", "%.hpp$", "%.h++$"
+  },
+  comment = "//",
+  patterns = {
+    { pattern = "//.-\n",                   type = "comment" },
+    { pattern = { "/%*", "%*/" },           type = "comment" },
+    { pattern = { '"', '"', '\\' },         type = "string"  },
+    { pattern = { "'", "'", '\\' },         type = "string"  },
+    { pattern = "0x%x+",                    type = "number"  },
+    { pattern = "%d+[%d%.eE]*f?",           type = "number"  },
+    { pattern = "%.?%d+f?",                 type = "number"  },
+    { pattern = "[%+%-=/%*%^%%<>!~|&]",     type = "operator" },
+    { pattern = "struct%s()[%a_][%w_]*",    type = {"keyword", "keyword2"} },
+    { pattern = "class%s()[%a_][%w_]*",     type = {"keyword", "keyword2"} },
+    { pattern = "union%s()[%a_][%w_]*",     type = {"keyword", "keyword2"} },
+    { pattern = "namespace%s()[%a_][%w_]*", type = {"keyword", "keyword2"} },
+    { pattern = "[%a_][%w_]*::",            type = "symbol" },
+    { pattern = "::",                       type = "symbol" },
+    { pattern = "[%a_][%w_]*",              type = "symbol" },
+    { pattern = "#include%s()<.->",         type = {"keyword", "string"} },
+    { pattern = "#[%a_][%w_]*",             type = "keyword" },
+  },
+  symbols = {
+    ["alignof"]  = "keyword",
+    ["alignas"]  = "keyword",
+    ["private"]  = "keyword",
+    ["protected"] = "keyword",
+    ["public"]   = "keyword",
+    ["register"] = "keyword",
+    ["nullptr"]  = "keyword",
+    ["operator"] = "keyword",
+    ["asm"]      = "keyword",
+    ["catch"]    = "keyword",
+    ["throw"]    = "keyword",
+    ["try"]      = "keyword",
+    ["compl"]    = "keyword",
+    ["explicit"] = "keyword",
+    ["export"]   = "keyword",
+    ["concept"]  = "keyword",
+    ["consteval"] = "keyword",
+    ["constexpr"] = "keyword",
+    ["constinit"] = "keyword",
+    ["const_cast"] = "keyword",
+    ["dynamic_cast"] = "keyword",
+    ["reinterpret_cast"] = "keyword",
+    ["static_cast"] = "keyword",
+    ["static_assert"] = "keyword",
+    ["template"]  = "keyword",
+    ["this"]      = "keyword",
+    ["thread_local"] = "keyword",
+    ["requires"]  = "keyword",
+    ["co_wait"]   = "keyword",
+    ["co_return"] = "keyword",
+    ["co_yield"]  = "keyword",
+    ["decltype"] = "keyword",
+    ["delete"]   = "keyword",
+    ["export"]   = "keyword",
+    ["friend"]   = "keyword",
+    ["typeid"]   = "keyword",
+    ["typename"] = "keyword",
+    ["mutable"]  = "keyword",
+    ["override"] = "keyword",
+    ["virtual"]  = "keyword",
+    ["using"]    = "keyword",
+    ["new"]      = "keyword",
+    ["noexcept"] = "keyword",
+    ["if"]       = "keyword",
+    ["then"]     = "keyword",
+    ["else"]     = "keyword",
+    ["elseif"]   = "keyword",
+    ["do"]       = "keyword",
+    ["while"]    = "keyword",
+    ["for"]      = "keyword",
+    ["break"]    = "keyword",
+    ["continue"] = "keyword",
+    ["return"]   = "keyword",
+    ["goto"]     = "keyword",
+    ["typedef"]  = "keyword",
+    ["enum"]     = "keyword",
+    ["extern"]   = "keyword",
+    ["static"]   = "keyword",
+    ["volatile"] = "keyword",
+    ["const"]    = "keyword",
+    ["inline"]   = "keyword",
+    ["switch"]   = "keyword",
+    ["case"]     = "keyword",
+    ["default"]  = "keyword",
+    ["auto"]     = "keyword",
+    ["const"]    = "keyword",
+    ["void"]     = "keyword",
+    ["int"]      = "keyword2",
+    ["short"]    = "keyword2",
+    ["long"]     = "keyword2",
+    ["float"]    = "keyword2",
+    ["double"]   = "keyword2",
+    ["char"]     = "keyword2",
+    ["unsigned"] = "keyword2",
+    ["bool"]     = "keyword2",
+    ["true"]     = "keyword2",
+    ["false"]    = "keyword2",
+    ["#include"] = "keyword",
+    ["#if"]      = "keyword",
+    ["#ifdef"]   = "keyword",
+    ["#ifndef"]  = "keyword",
+    ["#else"]    = "keyword",
+    ["#elseif"]  = "keyword",
+    ["#endif"]   = "keyword",
+    ["#define"]  = "keyword",
+    ["#warning"] = "keyword",
+    ["#error"]   = "keyword",
+    ["#pragma"]  = "keyword",
+   },
+}
+