;|(xtcal)= 文本计数求和;----------------------------------------------------------------陌生人.2004.1
;v1.1 2004.1.对mtext的bug修正。消除重复符号;支持-.5写法,排除"写.法" ".." "+-";
功能：对选集中文本进行所有数字计算,支持一个text,mtext中有多个数字字符串,支持字符串中小数,负数:
返回: 有数字，数字相加后写文本，并返回求和数值(非字符串).无有效数字返回nil.
|;
(defun c:textcalc ( / ss filter mspace n e str asclst strs add pt txt txth)
  (defun *error* (msg) (if ss (x_draw ss 4)) (setq *error* oerr))
  (princ "\n选择要计算的文本(支持*TEXT选择集):")
  (setq oerr *error*
	ss (ssget '((0 . "*TEXT")))
	filter "0123456789.-+"
	mspace (vla-get-modelspace(vla-get-activedocument (vlax-get-acad-object)))
	str nil strs nil)
  (if ss
    (repeat (setq n (sslength ss))
      (x_draw ss 3)
      (setq n (1- n)
	    e (ssname ss n)
	    str (vla-get-textstring(vlax-ename->vla-object e))
	    strs (strcat (if strs strs " ") (x_txt2 str) " ")) ;;排除mtext bug.v1.1-2004.1
      )
    )
  (if (and ss (/= "" strs))
    (progn
      (setq add (eval (read (strcat "(+ " strs ")")))) 
      (princ "\n文本数字和为: ")(princ add)
      (if (setq pt (getpoint "\n标注位置<重新计算>:"))
	  (progn
            (setq prec (getint "\n精度(小数位数):")
		  txt (rtos add 2 prec)
		  txth (getdist "\n字高:"))
	    (vla-addtext mspace txt (vlax-3D-point pt) txth)
	    (x_draw ss 4)
	    (princ) add)
	  (progn (if ss (x_draw ss 4))(xtcal))  ;多次<重新计算>可以作为一个简易统计查看器.
      )
    )
    (progn (princ "\n!空选集或文本中无有效数字!\n") nil)
  )
)
;;
(defun x_draw (ss key / n e)
  (if (= 'PICKSET (type ss))
    (repeat (setq n (sslength ss))
      (setq n (1- n)
	    e (ssname ss n))
      (redraw e key)
    )
  )
)
;;
(defun x_txt2 (str / i key1 key2 str1)
(setq i 1 key2 nil)
(repeat (strlen str)
(cond
((= "{\\f" (substr str i 3)) (setq i (+ 3 i) key1 1 key2 1)) 
((and key1 (= "}" (substr str i 1))) (setq key1 nil key2 nil))
((and key1 (= ";" (substr str i 1))) (setq key2 nil))
((not key2)
(setq st (substr str i 1)
str1 (strcat (if (not str1) "" str1) 
(cond
((= "." st)(if (wcmatch (substr str (1+ i) 1) "#") st " "))
((member st '("+" "-")) (if (wcmatch (substr str (1+ i) 1) "#,'.") st " "))
(T (if (wcmatch filter (strcat "*" st "*")) st " ")) 
)
))
)
)
(setq i (1+ i))
)
(setq str str1)
)

