Am 12.12.2022 um 17:07 schrieb Massimiliano Gubinelli <address@hidden>:TeXmacs/Guile can interact with the user via popup windows in the UI. Please give a look at the files$TEXMACS_PATH/progs/kernel/texmacs/tm-dialogue.scmwhere you have functions like the following:;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Questions with user interaction;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;(define-public (user-ask prompt cont)(tm-interactive cont(if (string? prompt)(list (build-interactive-arg prompt))(list prompt))))(define-public (user-confirm prompt default cont)(let ((k (lambda (answ) (cont (yes? answ)))))(if default(user-ask (list prompt "question" (translate "yes") (translate "no")) k)(user-ask (list prompt "question" (translate "no") (translate "yes")) k))))(define-public (user-url prompt type cont)(user-delayed (lambda () (choose-file cont prompt type))))(define-public (user-delayed cont)(exec-delayed cont))they work via continuations, so you will have to rewrite a bit your program.Also you can create full-fedged widgets, look for example the file$TEXMACS_PATH/progs/kernel/gui/tm-menu-test.scmBestMaxOn 12 Dec 2022, at 15:11, Wolfgang Lindner <address@hidden> wrote:Hi group,Currently I work through the book of G Springer about Scheme using TeXmacs/Guile.Until ch. 5 there were no problems and all programs run like a charm.Now in Ch.6 about input/output I run into problems.Here is a typical one.;------------------------------------------------------------------; - Program 6.6, pg. 174 -(define read-demo(lambda ()(display "Enter data (enter done when finished): ")(let ((response (read)))(cond((eq? response 'done) (display "Thank you. Good-bye."))(else (display "You entered: ")(write response)(newline)(read-demo)))))); - End Program -;------------------------------------------------------------------Is it possible to use Texmacs-Guile interactive?I know: use ‚format ..' instead of write/display ..But what to do with (read) ??How to work with user input and output?Any hints or making the program about working are very welcome-Best, Wolfgang----
Dr. Wolfgang Lindner
Leichlingen, Germany
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