50 lines
1.4 KiB
EmacsLisp
50 lines
1.4 KiB
EmacsLisp
;; -*- no-byte-compile: t; -*-
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;;; lang/sh/config.el
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(defvar sh-extra-font-lock--keywords
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`((+sh--match-var-in-double-quoted-string
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(2 font-lock-variable-name-face prepend))
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(,(concat
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"\\<"
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(regexp-opt '("sudo" "echo" "ls" "sleep" "tee" "cd" "cat" "service"))
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"\\>")
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(0 'font-lock-builtin-face))))
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;;;###autoload
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(defun +sh--in-double-quoted-string-p ()
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"Non-nil if point in inside a double-quoted string."
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(let ((state (syntax-ppss)))
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(eq (nth 3 state) ?\")))
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;;;###autoload
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(defun +sh--match-var-in-double-quoted-string (limit)
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"Search for variables in double-quoted strings bounded by LIMIT."
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(let (res)
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(while
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(and (setq res
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(re-search-forward
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"\\$\\({#?\\)?\\([[:alpha:]_][[:alnum:]_]*\\|[-#?@!]\\)"
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limit t))
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(not (+sh--in-double-quoted-string-p))))
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res))
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;;;###autoload
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(defun +sh|extra-fontify ()
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"Activate sh-extra-font-lock."
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(interactive)
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(font-lock-add-keywords nil sh-extra-font-lock--keywords)
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(if (fboundp 'font-lock-flush)
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(font-lock-flush)
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(when font-lock-mode
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(with-no-warnings
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(font-lock-fontify-buffer)))))
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;;;###autoload
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(defun +sh/repl ()
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"Open a shell REPL."
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(let* ((dest-sh (symbol-name sh-shell))
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(sh-shell-file dest-sh))
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(sh-shell-process t)
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(with-current-buffer "*shell*"
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(rename-buffer (format "*shell [%s]*" dest-sh)))))
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