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Fix line numbers when missing trailing newline

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_addLineNumbers expected code blocks to contain a trailing newline, but
this is not always the case.

Signed-off-by: Robin Townsend <robin@robin.town>
This commit is contained in:
Robin Townsend 2021-03-25 17:38:34 -04:00
parent 75bfaa58bb
commit f1a9c5ae93
1 changed files with 3 additions and 3 deletions
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6
src/components/views/messages/TextualBody.js
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@ -216,12 +216,12 @@ export default class TextualBody extends React.Component {
} }
_addLineNumbers(pre) { _addLineNumbers(pre) {
// Calculate number of lines in pre
const number = pre.innerHTML.replace(/\n(<\/code>)?$/, "").split(/\n/).length;
pre.innerHTML = '<span class="mx_EventTile_lineNumbers"></span>' + pre.innerHTML + '<span></span>'; pre.innerHTML = '<span class="mx_EventTile_lineNumbers"></span>' + pre.innerHTML + '<span></span>';
const lineNumbers = pre.getElementsByClassName("mx_EventTile_lineNumbers")[0]; const lineNumbers = pre.getElementsByClassName("mx_EventTile_lineNumbers")[0];
// Calculate number of lines in pre
const number = pre.innerHTML.split(/\n/).length;
// Iterate through lines starting with 1 (number of the first line is 1) // Iterate through lines starting with 1 (number of the first line is 1)
for (let i = 1; i < number; i++) { for (let i = 1; i <= number; i++) {
lineNumbers.innerHTML += '<span class="mx_EventTile_lineNumber">' + i + '</span>'; lineNumbers.innerHTML += '<span class="mx_EventTile_lineNumber">' + i + '</span>';
} }
} }