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103 lines
3.2 KiB
Markdown
103 lines
3.2 KiB
Markdown
## Introduction
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`avy-jump` is a GNU Emacs package for jumping to visible text using a char-based decision tree. See also [ace-jump-mode](https://github.com/winterTTr/ace-jump-mode) and [vim-easymotion](https://github.com/Lokaltog/vim-easymotion) - `avy-jump` uses the same idea.
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## Command overview
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You can bind some of these useful commands in your config.
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### `avy-goto-char`
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> Input one char, jump to it with a tree.
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```elisp
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(global-set-key (kbd "π") 'avy-goto-char)
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```
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After <kbd>πb</kbd>:
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### `avy-goto-char-2`
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> Input two consecutive chars, jump to the first one with a tree.
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The advantage over the previous one is less candidates for the tree search. And it's not too inconvenient to enter two consecutive chars instead of one.
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```elisp
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(global-set-key (kbd "C-'") 'avy-goto-char-2)
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```
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After <kbd>C-' bu</kbd>:
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### `avy-goto-line`
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> Input zero chars, jump to a line start with a tree.
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```elisp
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(global-set-key (kbd "M-g f") 'avy-goto-line)
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```
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After <kbd>M-g f</kbd>:
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You can actually replace the <kbd>M-g g</kbd> binding of `goto-line`, since if you enter a digit for `avy-goto-line`, it will switch to `goto-line` with that digit already entered.
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### `avy-goto-word-1`
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> Input one char at word start, jump to a word start with a tree.
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```elisp
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(global-set-key (kbd "M-g w") 'avy-goto-word-1)
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```
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After <kbd>M-g wb</kbd>:
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### `avy-goto-word-0`
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> Input zero chars, jump to a word start with a tree.
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Compared to `avy-goto-word-1`, there are a lot more candidates. But at a least there's not need to input the initial char.
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```elisp
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(global-set-key (kbd "M-g e") 'avy-goto-word-0)
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```
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After <kbd>M-g e</kbd>:
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### Other commands
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There are some more commands which you can explore yourself by looking at the code.
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### Bindings
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You add this to your config to bind some stuff:
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```elisp
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(avy-setup-default)
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```
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It will bind, for example, `avy-isearch` to <kbd>C-'</kbd> in `isearch-mode-map`, so that you can select one of the currently visible `isearch` candidates using `avy`.
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### Style customization
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There are four styles of overlay functions to choose from. You can choose to use one style for all functions, or you can select a different style for each function. Customize `avy-style` and `avy-styles-alist` respectively for this.
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The styles to choose from:
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- pre: the full path will be displayed before target, leaving all original text
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- at: the single character path will be displayed on target, obscuring the target
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- at-full: the full path will be displayed on target, obscuring the target and the text behind it
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- post: the full path will be displayed after target, leaving all original text
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At first it seems that `pre` and `post` are advantageous over `at` and `at-full`, since you can still see the original text with them. However, they make the text shift a bit. If you don't like that, use either `at` or `at-full`.
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