AWK support (helix-editor#3528)

book/src/generated/lang-support.md

@@ -1,5 +1,6 @@
 | Language | Syntax Highlighting | Treesitter Textobjects | Auto Indent | Default LSP |
 | --- | --- | --- | --- | --- |
+| awk | ✓ | ✓ |  | `awk-language-server` |
 | bash | ✓ |  |  | `bash-language-server` |
 | beancount | ✓ |  |  |  |
 | c | ✓ | ✓ | ✓ | `clangd` |

languages.toml

@@ -66,6 +66,20 @@ indent = { tab-width = 2, unit = "  " }
 name = "toml"
 source = { git = "https://github.com/ikatyang/tree-sitter-toml", rev = "7cff70bbcbbc62001b465603ca1ea88edd668704" }
 
+[[language]]
+name = "awk"
+scope = "source.awk"
+injection-regex = "awk"
+file-types = ["awk", "gawk", "nawk", "mawk"]
+roots = []
+comment-token = "#"
+language-server = { command = "awk-language-server" }
+indent = { tab-width = 2, unit = "  " }
+
+[[grammar]]
+name = "awk"
+source = { git = "https://github.com/Beaglefoot/tree-sitter-awk", rev = "a799bc5da7c2a84bc9a06ba5f3540cf1191e4ee3" }
+
 [[language]]
 name = "protobuf"
 scope = "source.proto"

runtime/queries/awk/highlights.scm

@@ -0,0 +1,122 @@
+; tree-sitter-awk v0.5.1
+
+; https://tree-sitter.github.io/tree-sitter/using-parsers#pattern-matching-with-queries
+
+; Order matters
+
+[
+  ";"
+  ","
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+] @operator
+
+(piped_io_statement [
+  "|"
+  "|&"
+] @operator)
+
+(redirected_io_statement [
+  ">"
+  ">>"
+] @operator)
+
+(update_exp [
+  "++"
+  "--"
+] @operator)
+
+(ternary_exp [
+  "?"
+  ":"
+] @operator)
+
+(assignment_exp [
+  "="
+  "+="
+  "-="
+  "*="
+  "/="
+  "%="
+  "^="
+] @operator)
+
+(unary_exp [
+  "!"
+  "+"
+  "-"
+] @operator)
+
+(binary_exp [
+  "^"
+  "**"
+  "*"
+  "/"
+  "%"
+  "+"
+  "-"
+  "<"
+  ">"
+  "<="
+  ">="
+  "=="
+  "!="
+  "~"
+  "!~"
+  "in"
+  "&&"
+  "||"
+] @operator)
+
+[
+  "@include"
+  "@load"
+  "@namespace"
+  (pattern)
+] @namespace
+
+[
+  "function"
+  "func"
+  "print"
+  "printf"
+  "if"
+  "else"
+  "do"
+  "while"
+  "for"
+  "in"
+  "delete"
+  "return"
+  "exit"
+  "switch"
+  "case"
+  "default"
+  (break_statement)
+  (continue_statement)
+  (next_statement)
+  (nextfile_statement)
+  (getline_input)
+  (getline_file)
+] @keyword
+
+(comment) @comment
+(regex) @string.regexp
+(number) @constant.numeric
+(string) @string
+
+(func_call name: (identifier) @function)
+(func_def name: (identifier) @function)
+
+(field_ref (_) @variable)
+[
+  (identifier)
+  (field_ref)
+] @variable
+
+(ns_qualified_name "::" @operator)
+(ns_qualified_name (namespace) @namespace)

runtime/queries/awk/injections.scm

@@ -0,0 +1,2 @@
+((comment) @injection.content
+ (#set! injection.language "comment"))

runtime/queries/awk/textobjects.scm

@@ -0,0 +1,10 @@
+
+(func_def name: (identifier) (block) @function.inside) @function.around
+
+(param_list (_) @parameter.inside) @parameter.around
+
+(args (_) @parameter.inside) @parameter.around
+
+(comment) @comment.inside
+
+(comment)+ @comment.around

runtime/queries/bash/injections.scm

@@ -1,2 +1,8 @@
 ((comment) @injection.content
  (#set! injection.language "comment"))
+
+(command
+  name: (command_name (word) @_command)
+  argument: (raw_string) @injection.content
+ (#match? @_command "^[gnm]?awk$")
+ (#set! injection.language "awk"))