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-rw-r--r--README.md47
1 files changed, 41 insertions, 6 deletions
diff --git a/README.md b/README.md
index 258ad95..cd5d73c 100644
--- a/README.md
+++ b/README.md
@@ -109,6 +109,10 @@ Mathsheet allows for the following customizations:
- **`mathsheet-output-directory`:** This is where worksheets should be
written. It defaults to your home directory. You'll probably want to
move it somewhere else.
+- **`dired-guess-shell-alist-user`:** This is an existing variable that
+ comes with dired which can be used to configure which programs are
+ associated with various file types. When mathsheet tries to open the
+ new worksheet, this will determine which program is used.
### Problem Templates
@@ -214,7 +218,7 @@ format.
;; Author: Ian Martins <ianxm@jhu.edu>
;; Keywords: tools, education, math
;; Homepage: https://gitlab.com/ianxm/mathsheet
- ;; Version: 1.2
+ ;; Version: 1.3
;; Package-Requires: ((peg "1.0")
;; (emacs "28.1"))
@@ -253,6 +257,8 @@ included in Emacs but we need to make sure they have been loaded.
(declare-function math-read-expr "calc-ext")
(declare-function calc-set-language "calc-lang")
+ (declare-function dired-do-shell-command "dired-aux")
+ (declare-function dired-guess-shell-command "dired-aux")
### Variables
@@ -322,6 +328,10 @@ scope where the macro is called.
(defvar mathsheet--field-problems nil
"The form record problems field.")
+In addition to these variables, we also use
+`dired-guess-shell-alist-user` to determine which program to use to open
+the generated PDF file.
+
## UI Form
@@ -533,15 +543,17 @@ This function is used to parse each problem row.
;; absolute path without extension
(fname (concat
(file-name-as-directory mathsheet-output-directory)
- (string-replace " " "-" (alist-get :name config)))))
+ (string-replace " " "-" (alist-get :name config))
+ ".pdf")))
(mathsheet--write-worksheet
fname
(alist-get :instr config)
problems
(alist-get :cols config))
- (message "Wrote %s problems to %s.pdf"
+ (message "Wrote %s problems to %s"
(alist-get :count config)
- fname))))
+ fname)
+ (mathsheet--open-worksheet fname))))
## Problem generation
@@ -985,7 +997,7 @@ of how each section is filled in is described below.
(let* ((default-directory mathsheet-output-directory)
(ret (shell-command-on-region
(point-min) (point-max)
- (format "groff -mm -e -Tpdf - > %s" (concat fname ".pdf")))))
+ (format "groff -mm -e -Tpdf - > %s" fname))))
(unless (eq ret 0)
(error "PDF generation failed")))))
@@ -1043,7 +1055,7 @@ fill-problems:
(unless (= index 0)
(insert ".NCOL\n"))
(dolist (row group)
- (message "convert to eqn %s -> %s" (car row) (mathsheet--convert-to-eqn (car row)))
+ ;; (message "convert to eqn %s -> %s" (car row) (mathsheet--convert-to-eqn (car row)))
(insert (format (if (nth 3 row)
".LI\n.EQ\n%s\n.EN\n.SP \\n[vs]p\n"
".LI\n.EQ\n%s =\n.EN\n\\l'5\\_'\n.SP \\n[vs]p\n")
@@ -1070,6 +1082,29 @@ fill-answers:
(if (< index (length problems)) "\n" "")))))
+### Open new worksheet
+
+This opens the worksheet PDF file after it is written. This makes it
+easy to review and print.
+
+This uses `dired-do-shell-command` to open the file, and
+`dired-guess-shell-command` to choose the program to use to open the
+file. The file should be a PDF so the program should be a PDF
+viewer. This can be configured for the local system using the variable
+`dired-guess-shell-alist-user`.
+
+ (defun mathsheet--open-worksheet (fname)
+ "Open the worksheet FNAME.
+
+ FNAME is the file to open, probably a worksheet."
+ (dired-do-shell-command
+ (dired-guess-shell-command
+ (format "Open %s with " fname)
+ (list fname))
+ nil
+ (list fname)))
+
+
## Convenience functions