--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.cms/lib/codemirror/src/line/pos.js	Fri Oct 11 22:40:23 2024 +0000
@@ -0,0 +1,40 @@
+import { getLine } from "./utils_line.js"
+
+// A Pos instance represents a position within the text.
+export function Pos(line, ch, sticky = null) {
+  if (!(this instanceof Pos)) return new Pos(line, ch, sticky)
+  this.line = line
+  this.ch = ch
+  this.sticky = sticky
+}
+
+// Compare two positions, return 0 if they are the same, a negative
+// number when a is less, and a positive number otherwise.
+export function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
+
+export function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
+
+export function copyPos(x) {return Pos(x.line, x.ch)}
+export function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
+export function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
+
+// Most of the external API clips given positions to make sure they
+// actually exist within the document.
+export function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
+export function clipPos(doc, pos) {
+  if (pos.line < doc.first) return Pos(doc.first, 0)
+  let last = doc.first + doc.size - 1
+  if (pos.line > last) return Pos(last, getLine(doc, last).text.length)
+  return clipToLen(pos, getLine(doc, pos.line).text.length)
+}
+function clipToLen(pos, linelen) {
+  let ch = pos.ch
+  if (ch == null || ch > linelen) return Pos(pos.line, linelen)
+  else if (ch < 0) return Pos(pos.line, 0)
+  else return pos
+}
+export function clipPosArray(doc, array) {
+  let out = []
+  for (let i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i])
+  return out
+}