working

viewer/node_modules/markdown-it/lib/rules_inline/newline.js

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+// Proceess '\n'
+
+'use strict';
+
+var isSpace = require('../common/utils').isSpace;
+
+
+module.exports = function newline(state, silent) {
+  var pmax, max, ws, pos = state.pos;
+
+  if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false; }
+
+  pmax = state.pending.length - 1;
+  max = state.posMax;
+
+  // '  \n' -> hardbreak
+  // Lookup in pending chars is bad practice! Don't copy to other rules!
+  // Pending string is stored in concat mode, indexed lookups will cause
+  // convertion to flat mode.
+  if (!silent) {
+    if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) {
+      if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) {
+        // Find whitespaces tail of pending chars.
+        ws = pmax - 1;
+        while (ws >= 1 && state.pending.charCodeAt(ws - 1) === 0x20) ws--;
+
+        state.pending = state.pending.slice(0, ws);
+        state.push('hardbreak', 'br', 0);
+      } else {
+        state.pending = state.pending.slice(0, -1);
+        state.push('softbreak', 'br', 0);
+      }
+
+    } else {
+      state.push('softbreak', 'br', 0);
+    }
+  }
+
+  pos++;
+
+  // skip heading spaces for next line
+  while (pos < max && isSpace(state.src.charCodeAt(pos))) { pos++; }
+
+  state.pos = pos;
+  return true;
+};