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;;; ============================================================================
;;; CXTXTSTYLE - Change the style and height of texts
;;; Version 1.0.0
;;; CADXChange LISP tools - https://cadxchange.net/resources/lisp/cxtxtstyle
;;; Tested in: AutoCAD (full version). Other programs that run AutoLISP may work but are not tested.
;;; Copyright (c) CADXChange. Free for personal and commercial use; do not resell or
;;; republish it as a collection. Terms: https://cadxchange.net/legal/lisp-terms
;;; ============================================================================

;; Give the texts in NAMES the text style STYLE, and the height HEIGHT when it is above zero.
;; Returns how many texts were changed, or nil when the style does not exist.
(defun cx:txtstyle-run (names style height / n)
  (if (tblsearch "STYLE" style)
    (progn
      (setq n 0)
      (foreach e names
        (cx:upd e 7 style)
        (if (> height 0.0) (cx:upd e 40 height))
        (setq n (1+ n)))
      n)))

;; The names of the text styles in the drawing, for the prompt.
(defun cx:style-names (/ r out)
  (setq r (tblnext "STYLE" T))
  (while r
    (if (/= (cx:dxf 2 r) "") (setq out (cons (cx:dxf 2 r) out)))
    (setq r (tblnext "STYLE")))
  (reverse out))

(defun c:CXTXTSTYLE ( / *error* cx:sv ss style height n)
  (setq *error* cx:err)
  (if (setq ss (cx:pick "\nSelect texts: " '((0 . "TEXT,MTEXT"))))
    (progn
      (princ (strcat "\nText styles: " (cx:join (cx:style-names) ", ")))
      (setq style  (cx:ask-str "Text style" (getvar "TEXTSTYLE"))
            height (cx:ask-real "New text height (0 keeps the heights)" 0.0))
      (cx:start '(("CMDECHO" . 0)))
      (if (setq n (cx:txtstyle-run (cx:ss->list ss) style height))
        (princ (strcat "\n" (itoa n) " text(s) changed."))
        (princ (strcat "\nThere is no text style named " style ".")))
      (cx:end)))
  (princ))


;;; ---- Shared helpers (used by the command above; identical in every CADXChange tool) ----

;; Change one group of an entity: (cx:upd ename 8 "LAYER1"); the group is added when missing.
(defun cx:upd (ename code value / ed old)
  (setq ed (entget ename) old (assoc code ed))
  (entmod (if old (subst (cons code value) old ed) (append ed (list (cons code value)))))
  (entupd ename))

(defun cx:dxf (code ed)
  (cdr (assoc code ed)))

;; Close the undo step and put the system variables back.
(defun cx:end ()
  (foreach v cx:sv (setvar (car v) (cdr v)))
  (command "_.UNDO" "_End")
  (setq cx:sv nil)
  (princ))

;; Error handler: restores everything, stays quiet on Esc.
(defun cx:err (msg)
  (if (> (getvar "CMDACTIVE") 0) (command))
  (cx:end)
  (if (and msg (not (wcmatch (strcase msg) "*BREAK*,*CANCEL*,*EXIT*")))
    (princ (strcat "\nError: " msg)))
  (princ))

;; Use the objects already selected, or ask the user to select; FILTER is an ssget filter list or nil.
(defun cx:pick (msg filter / ss)
  (setq ss (if filter (ssget "_I" filter) (ssget "_I")))
  (if (null ss)
    (progn
      (princ msg)
      (setq ss (if filter (ssget filter) (ssget)))))
  ss)

(defun cx:join (lst delim / out)
  (setq out "")
  (foreach s lst
    (setq out (if (= out "") s (strcat out delim s))))
  (if lst out ""))

;; Ask for a string (spaces allowed) with a default; "-" means an empty string.
(defun cx:ask-str (msg def / v)
  (setq v (getstring T (strcat "\n" msg " <" def ">: ")))
  (cond ((= v "") def) ((= v "-") "") (T v)))

;; Real X as text with at most PREC decimals and no trailing zeros ("2.50" -> "2.5", "3.00" -> "3").
(defun cx:num (x prec / s)
  (setq s (rtos x 2 prec))
  (if (wcmatch s "*.*")
    (progn
      (while (= (substr s (strlen s)) "0") (setq s (substr s 1 (1- (strlen s)))))
      (if (= (substr s (strlen s)) ".") (setq s (substr s 1 (1- (strlen s)))))))
  (if (or (= s "-0") (= s "")) "0" s))

(defun cx:ask-real (msg def / v)
  (setq v (getreal (strcat "\n" msg " <" (cx:num def 6) ">: ")))
  (if v v def))

;; Save the system variables in VARS ((name . value) ...), set them, and open one undo step.
;; The caller declares cx:sv as a local so the saved values live exactly as long as the command.
(defun cx:start (vars)
  (setq cx:sv (mapcar (function (lambda (v) (cons (car v) (getvar (car v))))) vars))
  (command "_.UNDO" "_Begin")
  (foreach v vars (setvar (car v) (cdr v)))
  (princ))

;; Selection set to a list of entity names.
(defun cx:ss->list (ss / i out)
  (setq i 0)
  (if ss
    (repeat (sslength ss)
      (setq out (cons (ssname ss i) out)
            i   (1+ i))))
  (reverse out))

(princ "\nCXTXTSTYLE loaded. Type CXTXTSTYLE to start.")
(princ)

Weitere Befehle: Text

• CXNUMTexte fortlaufend nummerieren
• CXTXTADDVielen Texten ein Präfix oder Suffix hinzufügen
• CXTXTCUTZeichen am Anfang oder Ende von Texten abschneiden
• CXTXTCASEGroß- und Kleinschreibung vieler Texte ändern
• CXTXTREPLIn vielen Texten gleichzeitig suchen und ersetzen
• CXTXTCLEANLeerzeichen und Formatierung in Texten aufräumen
• CXT2MEinzeilige Texte zu einem mehrzeiligen Text verbinden
• CXM2TMehrzeiligen Text in einzeilige Texte zerlegen
• CXTXTALIGNTexte an einem Bezugstext ausrichten
• CXTXTCOUNTGleiche Texte zählen
• CXTXTSUMZahlen in Texten addieren