Add language_caddyfile (#104)

* added language_caddyfile

2 files changed, 105 insertions, 0 deletions

diff --git a/README.md b/README.md
index f5bf1fb..5fc4269 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,7 @@ to something other than a raw file it should be marked with an asterisk.*
 | [`language_autohotkey`](https://github.com/devPnal/lite-plugin-autohotkey)\*                                   | Syntax for the [AutoHotkey](https://www.autohotkey.com) programming language                                                                                                                                                                                                                    |
 | [`language_batch`](plugins/language_batch.lua?raw=1)                                                           | Syntax for Windows [Batch Files](https://en.wikipedia.org/wiki/Batch_file)                                                                                                                                                                                                                      |
 | [`language_bib`](plugins/language_bib.lua?raw=1)                                                               | Syntax for [BibTex](https://en.wikipedia.org/wiki/BibTeX) files                                                                                                                                                                                                                                 |
+| [`language_caddyfile`](plugins/language_caddyfile.lua?raw=1)                                                   | Syntax for the Caddyfile used on the [Caddy](https://caddyserver.com/) web server                                                                                                                                                                                                               |
 | [`language_cmake`](plugins/language_cmake.lua?raw=1)                                                           | Syntax for the CMake build system language                                                                                                                                                                                                                                                      |
 | [`language_containerfile`](https://github.com/FilBot3/lite-xl-language-containerfile)\*                        | Syntax for [Containerfile](https://github.com/containers/common/blob/main/docs/Containerfile.5.md)/[Dockerfile](https://docs.docker.com/engine/reference/builder/)                                                                                                                              |
 | [`language_cpp`](plugins/language_cpp.lua?raw=1)                                                               | Syntax for the [C++](https://isocpp.org/) programming language                                                                                                                                                                                                                                  |
diff --git a/plugins/language_caddyfile.lua b/plugins/language_caddyfile.lua
new file mode 100644
index 0000000..f918c16
--- /dev/null
+++ b/plugins/language_caddyfile.lua
@@ -0,0 +1,104 @@
+-- mod-version:3
+local syntax = require "core.syntax"
+
+syntax.add {
+  files = { "Caddyfile" },
+  comment = "#",
+  patterns = {
+    { pattern = { "#", "\n"},          type = "comment"  },
+    { pattern = { '"', '"', '\\' },    type = "string"   },
+    -- Matcher definition
+    { pattern = "@[%w_]+",             type = "operator" },
+    -- Snippet
+    { pattern = "%(%g+%)",             type = "operator" },
+    -- Properties
+    { pattern = "^[%a_][%w_]*()%s+%f[%g]",
+      type = { "function", "normal" }
+    },
+    { pattern = "^[%a_][%w_]*()%s+$",
+      type = { "function", "normal" }
+    },
+    { pattern = "^%s*()[%a_][%w_]*()%s+$",
+      type = { "normal", "function", "normal" }
+    },
+    { pattern = "^%s*()[%a_][%w_]*()%s+%f[%g]",
+      type = { "normal", "function", "normal" }
+    },
+    -- Environment variables
+    { pattern = "{()%$[%w_]+():()[%w_]+()}",
+      type = { "operator", "keyword2", "operator", "keyword2", "operator" }
+    },
+    { pattern = "{()%$[%w_]+()}",
+      type = { "operator", "keyword2", "operator" }
+    },
+    -- Place holder
+    { pattern = "{%g-}",               type = "keyword2"  },
+    -- Operators
+    { pattern = "[+%-,:]",             type = "operator" },
+    -- IP Address
+    { pattern = "%d+%.%d+%.%d+%.%d+",  type = "literal"  },
+    -- Path /path/subpath
+    { pattern = "/[%w%./]+",           type = "literal"  },
+    -- Wildcard domain *.levels
+    { pattern = "%*()[%w.]+",
+      type = { "operator", "literal" }
+    },
+    -- Match Operator
+    { pattern = "%*+",                 type = "operator" },
+    -- Domain leve1.level2
+    { pattern = "https?://[%w%./%*]+", type = "literal"  },
+    -- Domain leve1.level2
+    { pattern = "%w+%.[%w%.]+",        type = "literal"  },
+    -- Number
+    { pattern = "%d+[mhskbi]*",        type = "number"   },
+    -- Everything else for symbols to work
+    { pattern = "[%a_][%w_]*",         type = "symbol"   },
+  },
+  symbols = {
+    ["true"] = "literal",
+    ["false"] = "literal",
+    ["localhost"] = "literal",
+
+    -- built-in directives
+    ["abort"] = "keyword",
+    ["acme_server"] = "keyword",
+    ["basicauth"] = "keyword",
+    ["bind"] = "keyword",
+    ["encode"] = "keyword",
+    ["error"] = "keyword",
+    ["file_server"] = "keyword",
+    ["forward_auth"] = "keyword",
+    ["handle"] = "keyword",
+    ["handle_errors"] = "keyword",
+    ["handle_path"] = "keyword",
+    ["header"] = "keyword",
+    ["import"] = "keyword",
+    ["log"] = "keyword",
+    ["method"] = "keyword",
+    ["map"] = "keyword",
+    ["metrics"] = "keyword",
+    ["php_fastcgi"] = "keyword",
+    ["push"] = "keyword",
+    ["redir"] = "keyword",
+    ["request_body"] = "keyword",
+    ["request_header"] = "keyword",
+    ["respond"] = "keyword",
+    ["reverse_proxy"] = "keyword",
+    ["rewrite"] = "keyword",
+    ["root"] = "keyword",
+    ["route"] = "keyword",
+    ["templates"] = "keyword",
+    ["tls"] = "keyword",
+    ["tracing"] = "keyword",
+    ["try_files"] = "keyword",
+    ["uri"] = "keyword",
+    ["vars"] = "keyword",
+
+    -- Module directives
+    ["cgi"] = "keyword",
+    ["ssh"] = "keyword",
+    ["exec"] = "keyword",
+    ["supervisor"] = "keyword",
+    ["layer4"] = "keyword",
+  },
+}