Embedded JavaScript templating syntax support (#363)

* Embedded JavaScript templating syntax support

language_ejs.lua file, fork of language_html.lua to support .ejs files.

* Update README.md

* Update manifest.json

* Update manifest.json

* Pattern for ejs tags <%%>

`<%%>` now uses javascript syntax without any problems.

* Update language_ejs.lua

function instead of operator (i was testing something and uploaded without saving :)

* Update language_ejs.lua

1 files changed, 51 insertions, 0 deletions

diff --git a/plugins/language_ejs.lua b/plugins/language_ejs.lua
new file mode 100644
index 0000000..f303bad
--- /dev/null
+++ b/plugins/language_ejs.lua
@@ -0,0 +1,51 @@
+-- mod-version:3
+
+-- Embedded JavaScript templating
+-- provides .ejs syntax support (fork of language_html.lua).
+
+local syntax = require "core.syntax"
+
+syntax.add {
+  name = "EJS",
+  files = { "%.ejs$" },
+  block_comment = { "<!--", "-->" },
+  patterns = {
+    {
+      pattern = {
+        "<%%",
+        "%%>"
+      },
+      syntax = '.js',
+      type = "function"
+    },
+    {
+      pattern = {
+        "<%s*[sS][cC][rR][iI][pP][tT]%f[%s>].->",
+        "<%s*/%s*[sS][cC][rR][iI][pP][tT]%s*>"
+      },
+      syntax = ".js",
+      type = "function"
+    },
+    {
+      pattern = {
+        "<%s*[sS][tT][yY][lL][eE]%f[%s>].->",
+        "<%s*/%s*[sS][tT][yY][lL][eE]%s*>"
+      },
+      syntax = ".css",
+      type = "function"
+    },
+    { pattern = { "<!%-%-", "%-%->" },     type = "comment"  },
+    { pattern = { '%f[^>][^<]', '%f[<]' }, type = "normal"   },
+    { pattern = { '"', '"', '\\' },        type = "string"   },
+    { pattern = { "'", "'", '\\' },        type = "string"   },
+    { pattern = "0x[%da-fA-F]+",           type = "number"   },
+    { pattern = "-?%d+[%d%.]*f?",          type = "number"   },
+    { pattern = "-?%.?%d+f?",              type = "number"   },
+    { pattern = "%f[^<]![%a_][%w_]*",      type = "keyword2" },
+    { pattern = "%f[^<][%a_][%w_]*",       type = "function" },
+    { pattern = "%f[^<]/[%a_][%w_]*",      type = "function" },
+    { pattern = "[%a_][%w_]*",             type = "keyword"  },
+    { pattern = "[/<>=]",                  type = "operator" },
+  },
+  symbols = {},
+}