Contents
When to use with-temp-buffer in Elisp?
Note: most of the time, you should just use with-temp-buffer to create new buffers. Because that saves you code of creating buffer, switching to it, do something, possibly close it, and restore (switch back) to the buffer that was current.
How to evaluate an expression in Emacs Lisp?
Evaluate all the Emacs Lisp expressions in the buffer. M-: ( eval-expression) reads an expression using the minibuffer, and evaluates it. (Before evaluating the expression, the current buffer switches back to the buffer that was current when you typed M-:, not the minibuffer into which you typed the expression.)
Is there a way to evaluate Elisp in eshell?
You can evaluate elisp in Eshell directly from the prompt, with some limitations. I have covered this in greater detail in my article on Mastering Eshell. That just about covers evaluating code in Emacs, from one-liners to entire buffers of code.
How to evaluate a code block in org?
C-c C-c or C-c C-v e with the point on a code block 142 calls the org-babel-execute-src-block function, which executes the code in the block, collects the results, and inserts them in the buffer. By calling a named code block 143 from an Org mode buffer or a table.
How to return the name of a buffer?
The argument can usually be a buffer’s name, or a buffer object. Return the name of current buffer. Return the full path of the file, or nil if not a file. Temporarily make a buffer current. Most of the time, you want to use this.
Which is the best function for a buffer?
Here’s the most useful functions for buffer. Most buffer functions assume the current buffer if no argument is given. Some requires a argument. The argument can usually be a buffer’s name, or a buffer object. Return the name of current buffer. Return the full path of the file, or nil if not a file. Temporarily make a buffer current.
What happens if buffer or name does not exist?
If BUFFER-OR-NAME is a buffer datatype and the buffer exists, it’s just returned. if not exist, new is created. If BUFFER-OR-NAME is a string and start with a space, undo is not enabled. Close current buffer or a specified buffer.