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141 lines
3.9 KiB
Markdown
141 lines
3.9 KiB
Markdown
Moar is a pager. It's designed to just do the right thing without any
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configuration:
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The intention is that Moar should work as a drop-in replacement for
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[Less](http://www.greenwoodsoftware.com/less/). If you find that Moar
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doesn't work that way,
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[please report it](https://github.com/walles/moar/issues)!
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Doing the right thing includes:
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* **Syntax highlight** source code by default if
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[Highlight](http://www.andre-simon.de/doku/highlight/en/highlight.php)
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is installed.
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* **Search is incremental** / find-as-you-type just like in
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[Chrome](http://www.google.com/chrome) or
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[Emacs](http://www.gnu.org/software/emacs/)
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* Search becomes case sensitive if you add any UPPER CASE characters
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to your search terms, just like in Emacs
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* [Regexp](http://en.wikipedia.org/wiki/Regular_expression#Basic_concepts)
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search if your search string is a valid regexp
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* Supports displaying ANSI color coded texts (like the output from
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"git diff" for example)
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* Supports UTF-8 input and output
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* The position in the file is always shown
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Installing
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----------
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FIXME: End-user install instructions for the Go-built product
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...
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And now you can just invoke `moar` from the prompt!
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Setting Moar as Your Default Pager
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----------------------------------
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Set it as your default pager by adding...
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```bash
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export PAGER=/usr/local/bin/moar
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```
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... to your `.bashrc`.
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Issues
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------
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Issues are tracked [here](https://github.com/walles/moar/issues), or
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you can send questions to <johan.walles@gmail.com>.
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Developing
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----------
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First, install [Highlight](http://www.andre-simon.de/zip/download.php),
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otherwise the test suite won't pass:
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* On macOS: [`brew install highlight`](https://brew.sh/)
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* On Ubuntu: [`sudo apt-get install highlight`](https://packages.ubuntu.com/search?suite=all&searchon=names&keywords=highlight)
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* Elsewhere, follow [instructions](http://www.andre-simon.de/zip/download.php)
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Also, you need the [go tools](https://golang.org/doc/install).
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Run tests:
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```bash
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./test.sh
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```
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Build + run:
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```bash
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./moar.sh ...
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```
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Install (into `/usr/local/bin`) from source:
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```bash
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./install.sh
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```
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Making a new Release
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--------------------
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FIXME: Go release instructions
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TODO
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----
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* Add '>' markers at the end of lines being cut because they are too long
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* Doing moar on an arbitrary binary (like /bin/ls) should put all
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line-continuation markers at the rightmost column. This really
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means our truncation code must work even with things like tabs and
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various control characters.
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* Make sure search hits are highlighted even when we have to scroll right
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to see them
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* Change out-of-file visualization to writing --- after the end of the
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file and leaving the rest of the screen blank.
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* Exit search on pressing up / down / pageup / pagedown keys and
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scroll. I attempted to do that spontaneously, so it's probably a
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good idea.
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* Release the `go` version as the new `moar`, replacing the previous Ruby
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implementation
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* Searching for something above us should wrap the search.
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* Handle all kinds of line endings.
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* Enable exiting using ^c (without restoring the screen).
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* Start at a certain line if run as "moar.rb file.txt:42"
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* Add licensing information (BSD)
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* Make sure version information is printed if there are warnings.
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* Redefine 'g' without any prefix to prompt for which line to go
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to. This definition makes more sense to me than having to prefix 'g'
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to jump.
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* Handle search hits to the right of the right screen edge. Searching
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forwards should move first right, then to the left edge and
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down. Searching backwards should move first left, then up and to the
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right edge (if needed for showing search hits).
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* Support viewing multiple files by pushing them in reverse order on
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the view stack.
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* Incremental search using ^s and ^r like in Emacs
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* Retain the search string when pressing / to search a second time.
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* Make sure "git grep" output gets highlighted properly.
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