1 files changed, 95 insertions, 0 deletions
diff --git a/plugins/language_crystal.lua b/plugins/language_crystal.lua
new file mode 100644
index 0000000..ef4ba03
--- /dev/null
+++ b/plugins/language_crystal.lua
@@ -0,0 +1,95 @@
+-- mod-version:2 -- lite-xl 2.0
+-- based on the ruby plugin, see https://github.com/Tamnac/lite-xl-plugins to contribute
+local syntax = require "core.syntax"
+
+syntax.add {
+  name = "Crystal",
+  files = { "%.cr" },
+  headers = "^#!.*[ /]crystal",
+  comment = "#",
+  patterns = {
+    { pattern = { '"', '"', '\\' },     type = "string"   },
+    { pattern = { "'", "'", '\\' },     type = "string"   },
+    { pattern = "-?0x%x+",              type = "number"   },
+    { pattern = "%#.-\n",               type = "comment"  },
+    { pattern = "-?%d+[%d%.eE]*f?",     type = "number"   },
+    { pattern = "-?%.?%d+f?",           type = "number"   },
+    { pattern = "[%+%-=/%*%^%%<>!~|&]", type = "operator" },
+    { pattern = "[%a_][%w_]*%f[(?]",    type = "function" },
+    { pattern = "@?@[%a_][%w_]*",       type = "keyword2" },
+    { pattern = "::[%w_]*",             type = "symbol"   },
+    { pattern = ":[%w_]*",              type = "keyword2" },
+    { pattern = "[%a_][%w_]*:[^:]",     type = "keyword2" },
+    { pattern = "[%a_][%w_]*",          type = "symbol"   },
+  },
+  symbols = {
+    ["__ENCODING__"] = "keyword",
+    ["__FILE__"]     = "keyword",
+    ["__LINE__"]     = "keyword",
+    ["alias"]        = "keyword",
+    ["annotation"]   = "keyword2",
+    ["Array"]        = "keyword2",
+    ["BEGIN"]        = "keyword",
+    ["begin"]        = "keyword",
+    ["Bool"]         = "keyword2",
+    ["break"]        = "keyword",
+    ["case"]         = "keyword",
+    ["Char"]         = "keyword2",
+    ["class"]        = "keyword",
+    ["def"]          = "keyword",
+    ["defined?"]     = "keyword",
+    ["do"]           = "keyword",
+    ["else"]         = "keyword",
+    ["elsif"]        = "keyword",
+    ["END"]          = "keyword",
+    ["end"]          = "keyword",
+    ["ensure"]       = "keyword",
+    ["enum"]         = "keyword2",
+    ["extend"]       = "keyword",
+    ["false"]        = "literal",
+    ["Float32"]      = "keyword2",
+    ["Float64"]      = "keyword2",
+    ["fun"]          = "keyword",
+    ["if"]           = "keyword",
+    ["in"]           = "keyword",
+    ["include"]      = "keyword",
+    ["Int8"]         = "keyword2",
+    ["Int16"]        = "keyword2",
+    ["Int32"]        = "keyword2",
+    ["Int64"]        = "keyword2",
+    ["module"]       = "keyword",
+    ["NamedTuple"]   = "keyword2",
+    ["next"]         = "keyword",
+    ["nil"]          = "literal",
+    ["not"]          = "keyword",
+    ["out"]          = "function",
+    ["private"]      = "keyword",
+    ["Proc"]         = "keyword2",
+    ["redo"]         = "keyword",
+    ["require"]      = "keyword",
+    ["rescue"]       = "keyword",
+    ["retry"]        = "keyword",
+    ["return"]       = "keyword",
+    ["self"]         = "keyword",
+    ["String"]       = "keyword2",
+    ["struct"]       = "keyword2",
+    ["super"]        = "keyword",
+    ["then"]         = "keyword",
+    ["times"]        = "function", 
+    ["true"]         = "literal",
+    ["Tuple"]        = "keyword2",
+    ["UInt8"]        = "keyword2",
+    ["UInt16"]       = "keyword2",
+    ["UInt32"]       = "keyword2",
+    ["UInt64"]       = "keyword2",
+    ["undef"]        = "keyword",
+    ["union"]        = "keyword2",
+    ["unless"]       = "keyword",
+    ["until"]        = "keyword",
+    ["when"]         = "keyword",
+    ["while"]        = "keyword",
+    ["yield"]        = "keyword"
+  },
+}
+
+