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Elisp: can't read buffer content with with-current-buffer
From: |
Alessandro Bertulli |
Subject: |
Elisp: can't read buffer content with with-current-buffer |
Date: |
Thu, 02 Jun 2022 18:45:25 +0200 |
Hi all!
I'm trying to set up some custom Elisp function to help me run Java
programs. Since it's possible I have different classes containing a main
method (for instance, when developing multi process or client-server
applications) I wanted to use completing-read. Therefore, I need a
list/function for completion. To do so, I need to scan the project I'm
working on, and search for the main methods that can be run. No problem
here, I can do that using grep and regexp. But then I don't know how to
collect those results in a list!
Specifically, let's say I have the directory "my_project" containing
some Java files. I want a list of strings, each one being one of the
files returned by grep, like:
'("~/my_project/src/main/java/ClassOne.java"
"~/my_project/src/main/java/ClassTwo.java")
In this function I wrote, however, it seems I can't do that:
(defun get-main-method-list ()
"Scan the project for main methods to run."
(interactive)
(let* ((project-root (projectile-acquire-root))
(output-buffer (get-buffer-create "*java-grep*")))
(async-shell-command (format "grep --include=\\*.java -rnwl \'%s\' -e
\'%s\'"
project-root
"public[[:space:]]\\+static[[:space:]]\\+void[[:space:]]\\+main")
output-buffer
output-buffer)
(with-current-buffer output-buffer
(let ((buffer-content (buffer-string)))
(print buffer-content) ;; debug
(set-text-properties 0 (length buffer-content) nil buffer-content)
(split-string buffer-content "\n")))))
See where I put a debug (print): it prints nothing or newlines, and the
function seems to return '(""). Is this a problem in using
with-current-buffer? If no, what am I getting wrong? Is this the
preferred way to tokenize a buffer into a list of strings?
Thanks for your time, have a nice day!
Alessandro
- Elisp: can't read buffer content with with-current-buffer,
Alessandro Bertulli <=