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(f90-equal-symbols, f90-looking-at-do, f90-looking-at-select-case)

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(f90-looking-at-if-then): Remove lets.
(f90-looking-at-where-or-forall): Handle if split over lines.
This commit is contained in:
Glenn Morris 2002-05-19 23:19:42 +00:00
parent 7340cc503b
commit f14ca2504b
2 changed files with 27 additions and 31 deletions
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3
lisp/ChangeLog
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@ -3,6 +3,9 @@
* progmodes/f90.el (f90-match-end, f90-break-line): Simplify a bit.
(f90-get-present-comment-type): Fix earlier change.
(f90-comment-indent): Doc fix.
(f90-equal-symbols, f90-looking-at-do, f90-looking-at-select-case)
(f90-looking-at-if-then): Remove lets.
(f90-looking-at-where-or-forall): Handle if split over lines.
2002-05-19 Richard M. Stallman <rms@gnu.org>

55
lisp/progmodes/f90.el
View File

@ -377,7 +377,7 @@ do\\([ \t]*while\\)?\\|select[ \t]*case\\|where\\|forall\\)\\)\\>"
'("\\<\\(case\\)[ \t]*\\(default\\|(\\)" . 1)
'("\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)"
(1 font-lock-keyword-face) (2 font-lock-constant-face))
;; line numbers (lines whose first character after number is letter)
;; Line numbers (lines whose first character after number is letter).
'("^[ \t]*\\([0-9]+\\)[ \t]*[a-z]+" (1 font-lock-constant-face t))))
"Highlights declarations, do-loops and other constructs.")
@ -918,44 +918,35 @@ For example, \"!\" or \"!!\"."
(defsubst f90-equal-symbols (a b)
"Compare strings A and B neglecting case and allowing for nil value."
(let ((a-local (if a (downcase a) nil))
(b-local (if b (downcase b) nil)))
(equal a-local b-local)))
(equal (if a (downcase a) nil)
(if b (downcase b) nil)))
;; XEmacs 19.11 & 19.12 return a single char when matching an empty regexp.
;; The next 2 functions are therefore longer than necessary.
(defsubst f90-looking-at-do ()
"Return (\"do\" NAME) if a do statement starts after point.
NAME is nil if the statement has no label."
(if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(do\\)\\>")
(let (label
(struct (match-string 3)))
(if (looking-at "\\(\\sw+\\)[ \t]*\:")
(setq label (match-string 1)))
(list struct label))))
(if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(do\\)\\>")
(list (match-string 3)
(if (looking-at "\\(\\sw+\\)[ \t]*:") (match-string 1)))))
(defsubst f90-looking-at-select-case ()
"Return (\"select\" NAME) if a select-case statement starts after point.
NAME is nil if the statement has no label."
(if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\
(if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\
\\(select\\)[ \t]*case[ \t]*(")
(let (label
(struct (match-string 3)))
(if (looking-at "\\(\\sw+\\)[ \t]*\:")
(setq label (match-string 1)))
(list struct label))))
(list (match-string 3)
(if (looking-at "\\(\\sw+\\)[ \t]*:") (match-string 1)))))
(defsubst f90-looking-at-if-then ()
"Return (\"if\" NAME) if an if () then statement starts after point.
NAME is nil if the statement has no label."
(save-excursion
(when (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(if\\)\\>")
(let (label
(struct (match-string 3)))
(if (looking-at "\\(\\sw+\\)[ \t]*\:")
(setq label (match-string 1)))
(let ((pos (scan-lists (point) 1 0)))
(and pos (goto-char pos)))
(when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(if\\)\\>")
(let ((struct (match-string 3))
(label (if (looking-at "\\(\\sw+\\)[ \t]*:") (match-string 1)))
(pos (scan-lists (point) 1 0)))
(and pos (goto-char pos))
(skip-chars-forward " \t")
(if (or (looking-at "then\\>")
(when (f90-line-continued)
@ -964,16 +955,18 @@ NAME is nil if the statement has no label."
(looking-at "then\\>")))
(list struct label))))))
(defsubst f90-looking-at-where-or-forall ()
(defun f90-looking-at-where-or-forall ()
"Return (KIND NAME) if a where or forall block starts after point.
NAME is nil if the statement has no label."
(if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\
\\(where\\|forall\\)[ \t]*(.*)[ \t]*\\(!\\|$\\)")
(let (label
(struct (match-string 3)))
(if (looking-at "\\(\\sw+\\)[ \t]*\:")
(setq label (match-string 1)))
(list struct label))))
(save-excursion
(when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\
\\(where\\|forall\\)\\>")
(let ((struct (match-string 3))
(label (if (looking-at "\\(\\sw+\\)[ \t]*:") (match-string 1)))
(pos (scan-lists (point) 1 0)))
(and pos (goto-char pos))
(skip-chars-forward " \t")
(if (looking-at "\\(!\\|$\\)") (list struct label))))))
(defsubst f90-looking-at-type-like ()
"Return (KIND NAME) if a type/interface/block-data block starts after point.