feat: Add lesskey syntax highlighting

It's kind of broken at the moment.

Author: hyperupcall

README.md

@@ -31,6 +31,7 @@ Syntax highlighting for
 - jq
 - JSON5
 - jsonl
+- lesskey
 - Linker Scripts
 - LLVM IR
 - Log

language-configuration/lesskey.language-configuration.json

@@ -0,0 +1,51 @@
+{
+	"comments": {
+		"lineComment": "# ",
+	},
+	"autoClosingPairs": [
+		{
+			"open": "{",
+			"close": "}",
+			"notIn": [
+				"string"
+			]
+		},
+		{
+			"open": "[",
+			"close": "]",
+			"notIn": [
+				"string"
+			]
+		},
+		{
+			"open": "(",
+			"close": ")",
+			"notIn": [
+				"string"
+			]
+		},
+		{
+			"open": "'",
+			"close": "'",
+			"notIn": [
+				"string"
+			]
+		},
+		{
+			"open": "\"",
+			"close": "\"",
+			"notIn": [
+				"string",
+				"comment"
+			]
+		},
+		{
+			"open": "`",
+			"close": "`",
+			"notIn": [
+				"string",
+				"comment"
+			]
+		}
+	]
+}

package.json

@@ -423,6 +423,16 @@
 				],
 				"configuration": "./language-configuration/jsonl.language-configuration.json"
 			},
+			{
+				"id": "lesskey",
+				"aliases": [
+					"lesskey"
+				],
+				"extensions": [
+					".lesskey"
+				],
+				"configuration": "./language-configuration/lesskey.language-configuration.json"
+			},
 			{
 				"id": "linkerscript",
 				"aliases": [
@@ -983,6 +993,11 @@
 				},
 				"path": "./syntaxes/jsonl.tmLanguage.json"
 			},
+			{
+				"language": "lesskey",
+				"scopeName": "source.lesskey",
+				"path": "./syntaxes/lesskey.tmLanguage.json"
+			},
 			{
 				"language": "linkerscript",
 				"scopeName": "source.ld",
@@ -1148,6 +1163,7 @@
 				"*.sublime-snippet": "xml",
 				"*.hbs": "html",
 				"*.ejs": "html",
+				"lesskey": "lesskey",
 				"*.Xresources": "xdefaults",
 				"i3/config": "i3",
 				"i3/*.conf": "i3",

syntaxes/lesskey.tmLanguage.json

@@ -0,0 +1,53 @@
+{
+	"name": "lesskey configuration file",
+	"patterns": [
+		{
+			"include": "#sections"
+		},
+		{
+			"include": "#section-keys"
+		},
+		{
+			"include": "#section-env"
+		},
+		{
+			"include": "#comments"
+		}
+	],
+	"repository": {
+		"sections": {
+			"patterns": [
+				{
+					"name": "entity.name.section",
+					"match": "^#(command|line-edit|env)[ \t]*$"
+				}
+			]
+		},
+		"section-keys": {
+			"patterns": [
+				{
+					"name": "entity.assignment",
+					"match": "^\\s*\\w\\s+\\s"
+				}
+			]
+		},
+		"section-env": {
+			"patterns": [
+				{
+					"name": "entity.assignment",
+					"match": "^\\s*\\w\\s*=\\s*\\w"
+				}
+			]
+		},
+		"comments": {
+			"patterns": [
+				{
+					"name": "comment.line",
+					"match": "^\\s*#.*\\n"
+				}
+			]
+		}
+	},
+	"scopeName": "source.lesskey",
+	"uuid": "dde9500d-f769-40fd-80dc-4a08f06ff35e"
+}

testdata/1.lesskey

@@ -0,0 +1,19 @@
+#command
+
+#line-edit
+
+#env
+a = b
+LESS = -FRQ
+LESS_ADVANCED_PREPROCESSOR=1 # lesspipe.sh
+# export LESSOPEN="|source-highlight-esc.sh %s"
+LESSHISTSIZE='32768'
+LESSHISTFILE="$XDG_STATE_HOME/history/less_history"
+LESS_TERMCAP_mb=$'\e[1;31m' # start blink
+LESS_TERMCAP_md=$'\e[1;36m' # start bold
+LESS_TERMCAP_me=$'\e[0m' # end all
+LESS_TERMCAP_so=$'\e[01;44;33m' # start reverse video
+LESS_TERMCAP_se=$'\e[0m' # end reverse video
+LESS_TERMCAP_us=$'\e[1;32m' # start underline
+LESS_TERMCAP_ue=$'\e[0m' # end underline
+LESS_TERMCAP_us=$'\e[1;32m' # start underline

testdata/lesskey

@@ -0,0 +1,9 @@
+#command
+
+#line-edit
+
+#env
+LESS = -FRQ
+LESS_ADVANCED_PREPROCESSOR = 1
+LESSOPEN= |source-highlight-esc.sh\ %s
+LESSHISTSIZE= 32768