diff options
Diffstat (limited to 'lisp/progmodes/cc-mode.el')
| -rw-r--r-- | lisp/progmodes/cc-mode.el | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/lisp/progmodes/cc-mode.el b/lisp/progmodes/cc-mode.el index f92d3efdeb7..e3a924efb06 100644 --- a/lisp/progmodes/cc-mode.el +++ b/lisp/progmodes/cc-mode.el @@ -2541,13 +2541,21 @@ Key bindings: (defconst c-or-c++-mode--regexp (eval-when-compile - (let ((id "[a-zA-Z0-9_]+") (ws "[ \t\r]+") (ws-maybe "[ \t\r]*")) + (let ((id "[a-zA-Z_][a-zA-Z0-9_]*") (ws "[ \t\r]+") (ws-maybe "[ \t\r]*") + (headers '("string" "string_view" "iostream" "map" "unordered_map" + "set" "unordered_set" "vector" "tuple"))) (concat "^" ws-maybe "\\(?:" - "using" ws "\\(?:namespace" ws "std;\\|std::\\)" - "\\|" "namespace" "\\(:?" ws id "\\)?" ws-maybe "{" - "\\|" "class" ws id ws-maybe "[:{\n]" - "\\|" "template" ws-maybe "<.*>" - "\\|" "#include" ws-maybe "<\\(?:string\\|iostream\\|map\\)>" + "using" ws "\\(?:namespace" ws + "\\|" id "::" + "\\|" id ws-maybe "=\\)" + "\\|" "\\(?:inline" ws "\\)?namespace" + "\\(:?" ws "\\(?:" id "::\\)*" id "\\)?" ws-maybe "{" + "\\|" "class" ws id + "\\(?:" ws "final" "\\)?" ws-maybe "[:{;\n]" + "\\|" "struct" ws id "\\(?:" ws "final" ws-maybe "[:{\n]" + "\\|" ws-maybe ":\\)" + "\\|" "template" ws-maybe "<.*?>" + "\\|" "#include" ws-maybe "<" (regexp-opt headers) ">" "\\)"))) "A regexp applied to C header files to check if they are really C++.") @@ -2563,6 +2571,7 @@ should be used. This function attempts to use file contents to determine whether the code is C or C++ and based on that chooses whether to enable `c-mode' or `c++-mode'." + (interactive) (if (save-excursion (save-restriction (save-match-data |