Function: idlwave-complete-sysvar-or-tag

idlwave-complete-sysvar-or-tag is an interactive and byte-compiled function defined in idlwave.el.gz.

Signature

(idlwave-complete-sysvar-or-tag)

Documentation

Complete a system variable.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/progmodes/idlwave.el.gz
(defun idlwave-complete-sysvar-or-tag ()
  "Complete a system variable."
  (interactive)
  (let ((pos (point))
	(case-fold-search t))
    (cond ((save-excursion
	     ;; Check if the context is right for system variable
	     (skip-chars-backward "a-zA-Z0-9_$")
	     (equal (char-before) ?!))
	   (setq idlwave-completion-help-info '(idlwave-complete-sysvar-help))
	   (idlwave-complete-in-buffer 'sysvar 'sysvar
				       idlwave-system-variables-alist nil
				       "Select a system variable"
				       "system variable")
	   t)  ; return t to skip other completions
	  ((save-excursion
	     ;; Check if the context is right for sysvar tag
	     (skip-chars-backward "a-zA-Z0-9_$.")
	     (and (equal (char-before) ?!)
		  (looking-at "\\([a-zA-Z][a-zA-Z0-9_$]*\\)\\.")
		  (<= (match-end 0) pos)))
	   ;; Complete a system variable tag
	   (let* ((var (idlwave-sintern-sysvar (match-string 1)))
		  (entry (assq var idlwave-system-variables-alist))
		  (tags (cdr (assq 'tags entry))))
	     (or entry (error "!%s is not a known system variable" var))
	     (or tags (error "System variable !%s is not a structure" var))
	     (setq idlwave-completion-help-info
		   (list 'idlwave-complete-sysvar-tag-help var))
	     (idlwave-complete-in-buffer 'sysvartag 'sysvartag
					 tags nil
					 "Select a system variable tag"
					 "system variable tag")
	     t)) ; return t to skip other completions
	  (t nil))))