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Merge pull request #879 from Arthur-Milchior/Tex_keep_alt

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Add Alt text to latex image
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Damien Elmes 2020-12-31 12:02:40 +10:00 committed by GitHub
commit 6199548ba9
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1 changed files with 11 additions and 4 deletions
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15
rslib/src/latex.rs
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@ -66,7 +66,7 @@ pub(crate) fn extract_latex(text: &str, svg: bool) -> (String, Vec<ExtractedLate
}; };
let latex_text = strip_html_for_latex(&latex); let latex_text = strip_html_for_latex(&latex);
let fname = fname_for_latex(&latex_text, svg); let fname = fname_for_latex(&latex_text, svg);
let img_link = image_link_for_fname(&fname); let img_link = image_link_for_fname(&latex_text, &fname);
extracted.push(ExtractedLatex { extracted.push(ExtractedLatex {
fname, fname,
latex: latex_text.into(), latex: latex_text.into(),
@ -97,8 +97,12 @@ fn fname_for_latex(latex: &str, svg: bool) -> String {
format!("latex-{}.{}", csum, ext) format!("latex-{}.{}", csum, ext)
} }
fn image_link_for_fname(fname: &str) -> String { fn image_link_for_fname(src: &str, fname: &str) -> String {
format!("<img class=latex src=\"{}\">", fname) format!(
"<img class=latex alt=\"{}\" src=\"{}\">",
htmlescape::encode_attribute(src),
fname
)
} }
#[cfg(test)] #[cfg(test)]
@ -111,7 +115,10 @@ mod test {
assert_eq!( assert_eq!(
extract_latex("a[latex]one<br>and<div>two[/latex]b", false), extract_latex("a[latex]one<br>and<div>two[/latex]b", false),
( (
format!("a<img class=latex src=\"{}\">b", fname), format!(
"a<img class=latex alt=\"one&#x0A;and&#x0A;two\" src=\"{}\">b",
fname
),
vec![ExtractedLatex { vec![ExtractedLatex {
fname: fname.into(), fname: fname.into(),
latex: "one\nand\ntwo".into() latex: "one\nand\ntwo".into()