HTML: improve highlights & injections

CONTRIBUTING.md

@@ -162,6 +162,7 @@ Mainly for markup languages.
 @text.strong
 @text.emphasis
 @text.underline
+@text.strike
 @text.title
 @text.literal
 @text.uri

doc/nvim-treesitter.txt

@@ -580,6 +580,10 @@ For text to be represented with emphasis.
                                                                *hl-TSUnderline*
 For text to be represented with an underline.
 
+`TSStrike`
+								 *hl-TSStrike*
+For strikethrough text.
+
 `TSTitle`
                                                                   *hl-TSTitle*
 Text that is part of a title.

lua/nvim-treesitter/highlight.lua

@@ -78,6 +78,7 @@ hlmap["text"] = "TSText"
 hlmap["text.strong"] = "TSStrong"
 hlmap["text.emphasis"] = "TSEmphasis"
 hlmap["text.underline"] = "TSUnderline"
+hlmap["text.strike"] = "TSStrike"
 hlmap["text.title"] = "TSTitle"
 hlmap["text.literal"] = "TSLiteral"
 hlmap["text.uri"] = "TSURI"

plugin/nvim-treesitter.vim

@@ -74,6 +74,7 @@ highlight default link TSText TSNone
 highlight default TSStrong term=bold cterm=bold gui=bold
 highlight default TSEmphasis term=italic cterm=italic gui=italic
 highlight default TSUnderline term=underline cterm=underline gui=underline
+highlight default TSStrike term=strikethrough cterm=strikethrough gui=strikethrough
 highlight default link TSTitle Title
 highlight default link TSLiteral String
 highlight default link TSURI Underlined

queries/html/highlights.scm

@@ -6,6 +6,32 @@
 (quoted_attribute_value) @string
 (comment) @comment
 
+((element (start_tag (tag_name) @_tag) (text) @text.title)
+ (#match? @_tag "^(h[0-9]|title)$"))
+
+((element (start_tag (tag_name) @_tag) (text) @text.strong)
+ (#match? @_tag "^(strong|b)$"))
+
+((element (start_tag (tag_name) @_tag) (text) @text.emphasis)
+ (#match? @_tag "^(em|i)$"))
+
+((element (start_tag (tag_name) @_tag) (text) @text.strike)
+ (#match? @_tag "^(s|del)$"))
+
+((element (start_tag (tag_name) @_tag) (text) @text.underline)
+ (#match? @_tag "^u$"))
+
+((element (start_tag (tag_name) @_tag) (text) @text.literal)
+ (#match? @_tag "^(code|kbd)$"))
+
+((element (start_tag (tag_name) @_tag) (text) @text.uri)
+ (#match? @_tag "^a$"))
+
+((attribute
+   (attribute_name) @_attr
+   (quoted_attribute_value (attribute_value) @text.uri))
+ (#match? @_attr "^href$"))
+
 "=" @operator
 
 [
@@ -14,4 +40,4 @@
  ">"
  "</"
  "/>"
- ] @tag.delimiter
+] @tag.delimiter

queries/html/injections.scm

@@ -1,5 +1,10 @@
 ((style_element
   (raw_text) @css))
 
+((attribute
+   (attribute_name) @_attr
+   (quoted_attribute_value (attribute_value) @css))
+ (#match? @_attr "^style$"))
+
 ((script_element
   (raw_text) @javascript))