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This weekend, I finnaly did something that I should have done long ago: |
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I implemented text search for my gopher- and gemini-client ncgopher [1]. |
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I've had this on my TODO list for ages, but in my head it was not so |
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easy to implement. Turned out that I was totally wrong, and that it only |
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took a couple of hours. Most of the time, I spent scratching my head |
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over some Rust compiler errors. It's been a while that I've been written |
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any Rust code... |
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My aim was to provide a vim-like search where you just type '/' followed |
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by your search query. So pressing '/' switches the status line at the |
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bottom of the screen into an input field. You can type your search |
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term. If you delete the term or press ESC, the input field will close |
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and vanish. To trigger a search you press enter. (No incremental search |
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for now, but that would be trivial to implement, just call the search |
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function on every update). |
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Once the search is executed, all occurrences of the search term will be |
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highlighted and the current row is moved to the first occurrence of the |
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search term. If no occurrences are below the current position, the first |
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occurrence in the document will be highlighted instead (wrapping). If |
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the search term is not found nothing happens (Should probably show a |
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message). |
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For navigation between search result I settled for the vim-keys n (goto |
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next result) and N (goto previous result). It would also be easy to add |
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backward search, but the '?'-shortcut is already taken for the help |
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function. The 'n' key was originally used for jump-to-next-link (and |
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'p' for the opposite). I changed these to 'l' and 'L'. |
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There are several ways to improve this search function: |
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- Incremental search, maybe configurable. |
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- Backward search. |
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- Case-insensitive search |
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- Highlighting of search terms is not optimal, because it's invisible |
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on the currently selected line. |
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- Search term history. Press '/' and arrow up to see previous search |
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terms. |
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The new editfield opens a lot of doors. Vim-like commands are possible |
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now, like ':help'. Maybe ':bn' and ':bp' for switching between buffers |
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("tabs") would be cool. |
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[1] http://github.com/jansc/ncgopher |
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Gophered by Gophernicus/3.0.1 on FreeBSD/arm64 14.3 |
