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HTML writer: render inline formulas correctly with --webtex (#5656)

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We add `\textstyle` to the beginning of the formula to ensure it will be rendered in inline style.
Closes #5655.
This commit is contained in:
Philip Pesca 2019-07-23 12:21:32 -07:00 committed by John MacFarlane
parent db5f6dd4fe
commit bc508534a6
2 changed files with 18 additions and 1 deletions
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5
src/Text/Pandoc/Writers/HTML.hs
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@ -1062,8 +1062,11 @@ inlineToHtml opts inline = do
case writerHTMLMathMethod opts of
WebTeX url -> do
let imtag = if html5 then H5.img else H.img
let s = case t of
InlineMath -> "\\textstyle "
DisplayMath -> ""
let m = imtag ! A.style "vertical-align:middle"
! A.src (toValue $ url ++ urlEncode str)
! A.src (toValue $ url ++ urlEncode (s ++ str))
! A.alt (toValue str)
! A.title (toValue str)
let brtag = if html5 then H5.br else H.br

14
test/command/5655.md Normal file
View file

@ -0,0 +1,14 @@
````
% pandoc --webtex
$T_n={n+1 \choose 2}$
^D
<p><img style="vertical-align:middle" src="https://latex.codecogs.com/png.latex?%5Ctextstyle%20T_n%3D%7Bn%2B1%20%5Cchoose%202%7D" alt="T_n={n+1 \choose 2}" title="T_n={n+1 \choose 2}" /></p>
````
````
% pandoc --webtex
$$T_n={n+1 \choose 2}$$
^D
<p><br /><img style="vertical-align:middle" src="https://latex.codecogs.com/png.latex?T_n%3D%7Bn%2B1%20%5Cchoose%202%7D" alt="T_n={n+1 \choose 2}" title="T_n={n+1 \choose 2}" /><br /></p>
````