Support sagemath language (#5649)

book/src/generated/lang-support.md

@@ -109,6 +109,7 @@
 | ron | ✓ |  | ✓ |  |
 | ruby | ✓ | ✓ | ✓ | `solargraph` |
 | rust | ✓ | ✓ | ✓ | `rust-analyzer` |
+| sage | ✓ | ✓ |  |  |
 | scala | ✓ |  | ✓ | `metals` |
 | scheme | ✓ |  |  |  |
 | scss | ✓ |  |  | `vscode-css-language-server` |

languages.toml

@@ -2109,3 +2109,13 @@ formatter = { command = "dhall" , args = ["format"] }
 [[grammar]]
 name = "dhall"
 source = { git = "https://github.com/jbellerb/tree-sitter-dhall", rev = "affb6ee38d629c9296749767ab832d69bb0d9ea8" }
+
+[[language]]
+name = "sage"
+scope = "source.sage"
+file-types = ["sage"]
+injection-regex = "sage"
+roots = []
+comment-token = "#"
+indent = { tab-width = 4, unit = "    " }
+grammar = "python"

runtime/queries/sage/highlights.scm

@@ -0,0 +1 @@
+; inherits: python

runtime/queries/sage/injections.scm

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

runtime/queries/sage/textobjects.scm

@@ -0,0 +1 @@
+; inherits: python