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42 lines
1.2 KiB
42 lines
1.2 KiB
// Proceess '\n'
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import { isSpace } from '../common/utils.mjs'
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export default function newline (state, silent) {
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let pos = state.pos
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if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false }
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const pmax = state.pending.length - 1
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const 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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// Find whitespaces tail of pending chars.
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let ws = pmax - 1
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while (ws >= 1 && state.pending.charCodeAt(ws - 1) === 0x20) ws--
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state.pending = state.pending.slice(0, ws)
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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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state.push('softbreak', 'br', 0)
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}
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} else {
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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 && isSpace(state.src.charCodeAt(pos))) { pos++ }
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state.pos = pos
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return true
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}
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