57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
// see: https://github.com/markdown-it/markdown-it/issues/375
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//
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// we use a custom paragraph rule cause we have to signal when a
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// link starts with a space, so we can bypass a onebox
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// this is a freedom patch, so careful, may break on updates
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function newline(state, silent) {
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let token,
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pmax,
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max,
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pos = state.pos;
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if (state.src.charCodeAt(pos) !== 0x0a /* \n */) {
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return false;
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}
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pmax = state.pending.length - 1;
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max = state.posMax;
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// ' \n' -> hardbreak
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// Lookup in pending chars is bad practice! Don't copy to other rules!
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// Pending string is stored in concat mode, indexed lookups will cause
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// convertion to flat mode.
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if (!silent) {
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if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) {
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if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) {
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state.pending = state.pending.replace(/ +$/, "");
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token = state.push("hardbreak", "br", 0);
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} else {
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state.pending = state.pending.slice(0, -1);
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token = state.push("softbreak", "br", 0);
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}
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} else {
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token = state.push("softbreak", "br", 0);
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}
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}
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pos++;
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// skip heading spaces for next line
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while (pos < max && state.md.utils.isSpace(state.src.charCodeAt(pos))) {
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if (token) {
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token.leading_space = true;
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}
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pos++;
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}
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state.pos = pos;
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return true;
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}
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export function setup(helper) {
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helper.registerPlugin((md) => {
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md.inline.ruler.at("newline", newline);
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});
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}
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