https://github.com/sogaiu/janet-unwrap

https://github.com/sogaiu/janet-unwrap

editor janet source

Last synced: 8 days ago
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• Host: GitHub
• URL: https://github.com/sogaiu/janet-unwrap
• Owner: sogaiu
• Created: 2023-07-21T08:27:49.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2024-09-06T13:59:09.000Z (4 months ago)
• Last Synced: 2024-09-06T16:18:32.266Z (4 months ago)
• Topics: editor, janet, source
• Language: Janet
• Homepage:
• Size: 68.4 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# janet-unwrap

Code for determining bounds for unwrapping forms in strings of Janet

source code.

## Demo

Given the file `data/unwrap-input.txt` with content:

```

Name: tracev

Line: 2

Column: 10

(def a

  (tracev (+ 3

             (- 1 2))))

```

To determine the bounds of a `(tracev ...)` form wrapping the location

line 2, column 10:

```

cat data/unwrap-input.txt | janet janet-unwrap/unwrap.janet

```

The result should be:

```

2 3 3 23 2 11 3 22

```

The first four numbers refer to the bounds of the whole `(tracev ...)`

form:

```

start: line 2, column 3

  end: line 3, column 23

```

while the next four numbers refer to the bounds of the "wrapped" form

`(+ 3 (- 1 2))`:

```

start: line 2, column 11

  end: line 3, column 22

```

## Usages

Below are some usages of a provided function named `find-wrap-info`.

```janet

(find-wrap-info

  ``

  (def a

    (tracev (+ 3

               (- 1 2))))

  ``

  2 10 "def")

# =>

[[1 1 3 24] [1 6 3 23]]

(find-wrap-info

  ``

  (comment

    (+ 1 1)

    # =>

    2

    )

  ``

  3 3 "comment")

# =>

[[1 1 7 4] [3 3 5 4]]

```

## Use

The code is currently used via Emacs Lisp code in

[janet-editor-elf](https://github.com/sogaiu/janet-editor-elf) via

process invocation to aid in unwrapping content within `comment` and

`tracev` forms.