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Some headlines return wrong offsets #404

terhechte opened this issue Sep 16, 2019 · 1 comment · May be fixed by #405


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commented Sep 16, 2019

In some situations, headlines are reported with an invalid offset. Here is an example.


use pulldown_cmark::*;

fn main() {
    let markdown = "

# Test


``` C
#include <stdio.h>

    let mut options = Options::empty();
    let parser = Parser::new_ext(markdown, options);
    let iter = parser.into_offset_iter();

    for (element, offset) in iter {
        println!("{:?}: {:?}", &element, &offset);

The second headline will be reported as having an offset of 21..0 which is wrong, the correct offset should be 21..22.

Here is the output:

Start(Heading(1)): 2..9
Text(Borrowed("Test")): 4..8
End(Heading(1)): 2..9
Start(Paragraph): 10..16
Text(Borrowed("Text.")): 10..15
End(Paragraph): 10..16
Rule: 17..21
Start(Heading(1)): 21..0
End(Heading(1)): 21..0
Start(CodeBlock(Borrowed("C"))): 23..51
Text(Borrowed("#include <stdio.h>\n")): 29..48
End(CodeBlock(Borrowed("C"))): 23..51

I've also seen this happen if a headline is opened at the very bottom of a document.

@marcusklaas marcusklaas added the bug label Sep 16, 2019

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commented Sep 16, 2019

Woops, that does look like a bug. Thanks for reporting this. We'll look into it.

@marcusklaas marcusklaas referenced a pull request that will close this issue Sep 17, 2019
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