Issue/strange behaveour I found when working with Rmd

[CorradoLanera]

• If I am in a chunk without highlighting anything and CTRL+ENTER, Positron sends the rest of the file to the console (instead of only the current line/piped expression). The code is not executed but only copied and pasted to the console. If I select all (in the console) and delete, the situation becomes quite strange: from this point, expressions won't be executed even if I select lines of code and CTRL+ENTER. To fix this, I select all and delete the console's content, and press ENTER to make a clean prompt appear. Next, everything returns as usual (i.e., only highlighted expressions will be executed when CTRL+ENTER).
• autocompletion, inline help, and regular help (F1) doesn't work in Rmd chunks
• Keras progress bar does not appear in the console nor
• Keras history interactive progress plot does not appear

Screen.Recording.2024-08-29.225621.mp4

Positron Version: 2024.08.0 (system setup) build 48
Code - OSS Version: 1.91.0
Commit: ed616b3
Date: 2024-08-19T03:30:12.447Z
Electron: 29.4.0
Chromium: 122.0.6261.156
Node.js: 20.9.0
V8: 12.2.281.27-electron.0
OS: Windows_NT x64 10.0.26120

[juliasilge]

Oh gosh, definitely weird!

I think that when you have code going to the console as console input but not executing, the console thinks the code is incomplete and is waiting for you to keep typing to finish the expression. Do you have an .Rmd you can share where you observe this behavior? Does this happen all the time for this particular .Rmd? Or intermittently?

[CorradoLanera]

@juliasilge , it happens all the time with that .Rmd. I tried it with another .Rmd, and it did not occur.

So, here, a minimal reprex to isolate the issue: it happens every time a header follows a chunk without an empty line in the middle:

This does not have any issue

---
title: "Issues with headers in Positron"
output: html_document
date: "2024-08-30"
---

```{r}
1+1
```

# Foo

```{r}
set.seed(123)
```

This shows the issue

---
title: "Issues with headers in Positron"
output: html_document
date: "2024-08-30"
---

```{r}
1+1
```
# Foo

```{r}
set.seed(123)
```

If you see in the video, Positron highlights the background of the header in light gray if there is no space between the previous chunk.

Screen.Recording.2024-08-30.071549.mp4

PS: To make the system work again, unlike my previous statement, you don't need to perform computations, but it is still necessary to type ENTER after clearing the console when the issue occurs.

[juliasilge]

Ah yep, I believe you have run into quarto-dev/quarto#493 because the Quarto extension does not support this kind of syntax currently:

---
title: "Issues with headers in Positron"
output: html_document
date: "2024-08-30"
---

```{r}
1+1
```
# Foo

```{r}
set.seed(123)
```

You do need the newline after the code chunk currently but that issue ⤴️ tracks whether this can be supported better, or at the least linted to prompt folks like you to add the new line.