#!/usr/local/bin/klone
;;Skeleton of a typical klone script
;;(stack-dump-on-error t)
;;(kdb t)

(defvar ExpressionToFind '(bar-make ()))

(setq files (getopts "USAGE: find-bar-nils files...
prints usage of (bar-make ()) which will conflict with the new syntax"
    ("-v" () verbose "verbose operation")
))

(setq *quote-inlines* t)

(defun main (&aux
  )
  (dolist (file files)
    (catch 'ALL
      (process-file file)
    )
  )
)

(defun process-file (file &aux
    (fd (open file))
    expr
  )
  (catch 'EOF
    (while t
      (setq expr (read fd))
      (setq is-in-expr:count 0)
      (if (is-in-expr expr ExpressionToFind)
	(print-format "%0:%1: %2 occurences in: %3\n"
	  file (file-lineno fd) is-in-expr:count (truncate-to expr 40)
)))))

;; find current line in file
(defun file-lineno (fd &aux
    (cur-pos (file-position fd))
    (line 0)
  )
  (file-position fd 0)			;rewind
  (catch 'EOF
    (while (< (file-position fd) cur-pos)	;count from start
      (read-line fd)
      (incf line)
  ))
  (file-position fd cur-pos)
  line
)

(defvar is-in-expr:count 0)

(defun is-in-expr (expr subexpr)
  (if (= expr subexpr)
    (incf is-in-expr:count)
    (if (typep expr List)
      (catch 'Found
	(dolist (se expr)
	  (if (is-in-expr se subexpr)
	    (throw 'Found t)
	))
	()
      )
      () 
)))

(defun truncate-to (expr N &aux
    (s (print-format String "%0" expr))
  )
  (if (> (length s) N)
    (subseq s 0 N)
    s
  )
)


(main)

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