--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.cms/lib/codemirror/test/multi_test.js	Fri Oct 11 22:40:23 2024 +0000
@@ -0,0 +1,295 @@
+(function() {
+  namespace = "multi_";
+
+  function hasSelections(cm) {
+    var sels = cm.listSelections();
+    var given = (arguments.length - 1) / 4;
+    if (sels.length != given)
+      throw new Failure("expected " + given + " selections, found " + sels.length);
+    for (var i = 0, p = 1; i < given; i++, p += 4) {
+      var anchor = Pos(arguments[p], arguments[p + 1]);
+      var head = Pos(arguments[p + 2], arguments[p + 3]);
+      eqCharPos(sels[i].anchor, anchor, "anchor of selection " + i);
+      eqCharPos(sels[i].head, head, "head of selection " + i);
+    }
+  }
+  function hasCursors(cm) {
+    var sels = cm.listSelections();
+    var given = (arguments.length - 1) / 2;
+    if (sels.length != given)
+      throw new Failure("expected " + given + " selections, found " + sels.length);
+    for (var i = 0, p = 1; i < given; i++, p += 2) {
+      eqCursorPos(sels[i].anchor, sels[i].head, "something selected for " + i);
+      var head = Pos(arguments[p], arguments[p + 1]);
+      eqCharPos(sels[i].head, head, "selection " + i);
+    }
+  }
+
+  testCM("getSelection", function(cm) {
+    select(cm, {anchor: Pos(0, 0), head: Pos(1, 2)}, {anchor: Pos(2, 2), head: Pos(2, 0)});
+    eq(cm.getSelection(), "1234\n56\n90");
+    eq(cm.getSelection(false).join("|"), "1234|56|90");
+    eq(cm.getSelections().join("|"), "1234\n56|90");
+  }, {value: "1234\n5678\n90"});
+
+  testCM("setSelection", function(cm) {
+    select(cm, Pos(3, 0), Pos(0, 0), {anchor: Pos(2, 5), head: Pos(1, 0)});
+    hasSelections(cm, 0, 0, 0, 0,
+                  2, 5, 1, 0,
+                  3, 0, 3, 0);
+    cm.setSelection(Pos(1, 2), Pos(1, 1));
+    hasSelections(cm, 1, 2, 1, 1);
+    select(cm, {anchor: Pos(1, 1), head: Pos(2, 4)},
+           {anchor: Pos(0, 0), head: Pos(1, 3)},
+           Pos(3, 0), Pos(2, 2));
+    hasSelections(cm, 0, 0, 2, 4,
+                  3, 0, 3, 0);
+    cm.setSelections([{anchor: Pos(0, 1), head: Pos(0, 2)},
+                      {anchor: Pos(1, 1), head: Pos(1, 2)},
+                      {anchor: Pos(2, 1), head: Pos(2, 2)}], 1);
+    eqCharPos(cm.getCursor("head"), Pos(1, 2));
+    eqCharPos(cm.getCursor("anchor"), Pos(1, 1));
+    eqCharPos(cm.getCursor("from"), Pos(1, 1));
+    eqCharPos(cm.getCursor("to"), Pos(1, 2));
+    cm.setCursor(Pos(1, 1));
+    hasCursors(cm, 1, 1);
+  }, {value: "abcde\nabcde\nabcde\n"});
+
+  testCM("somethingSelected", function(cm) {
+    select(cm, Pos(0, 1), {anchor: Pos(0, 3), head: Pos(0, 5)});
+    eq(cm.somethingSelected(), true);
+    select(cm, Pos(0, 1), Pos(0, 3), Pos(0, 5));
+    eq(cm.somethingSelected(), false);
+  }, {value: "123456789"});
+
+  testCM("extendSelection", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1), Pos(2, 1));
+    cm.setExtending(true);
+    cm.extendSelections([Pos(0, 2), Pos(1, 0), Pos(2, 3)]);
+    hasSelections(cm, 0, 1, 0, 2,
+                  1, 1, 1, 0,
+                  2, 1, 2, 3);
+    cm.extendSelection(Pos(2, 4), Pos(2, 0));
+    hasSelections(cm, 2, 4, 2, 0);
+  }, {value: "1234\n1234\n1234"});
+
+  testCM("addSelection", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.addSelection(Pos(0, 0), Pos(0, 4));
+    hasSelections(cm, 0, 0, 0, 4,
+                  1, 1, 1, 1);
+    cm.addSelection(Pos(2, 2));
+    hasSelections(cm, 0, 0, 0, 4,
+                  1, 1, 1, 1,
+                  2, 2, 2, 2);
+  }, {value: "1234\n1234\n1234"});
+
+  testCM("replaceSelection", function(cm) {
+    var selections = [{anchor: Pos(0, 0), head: Pos(0, 1)},
+                      {anchor: Pos(0, 2), head: Pos(0, 3)},
+                      {anchor: Pos(0, 4), head: Pos(0, 5)},
+                      {anchor: Pos(2, 1), head: Pos(2, 4)},
+                      {anchor: Pos(2, 5), head: Pos(2, 6)}];
+    var val = "123456\n123456\n123456";
+    cm.setValue(val);
+    cm.setSelections(selections);
+    cm.replaceSelection("ab", "around");
+    eq(cm.getValue(), "ab2ab4ab6\n123456\n1ab5ab");
+    hasSelections(cm, 0, 0, 0, 2,
+                  0, 3, 0, 5,
+                  0, 6, 0, 8,
+                  2, 1, 2, 3,
+                  2, 4, 2, 6);
+    cm.setValue(val);
+    cm.setSelections(selections);
+    cm.replaceSelection("", "around");
+    eq(cm.getValue(), "246\n123456\n15");
+    hasSelections(cm, 0, 0, 0, 0,
+                  0, 1, 0, 1,
+                  0, 2, 0, 2,
+                  2, 1, 2, 1,
+                  2, 2, 2, 2);
+    cm.setValue(val);
+    cm.setSelections(selections);
+    cm.replaceSelection("X\nY\nZ", "around");
+    hasSelections(cm, 0, 0, 2, 1,
+                  2, 2, 4, 1,
+                  4, 2, 6, 1,
+                  8, 1, 10, 1,
+                  10, 2, 12, 1);
+    cm.replaceSelection("a", "around");
+    hasSelections(cm, 0, 0, 0, 1,
+                  0, 2, 0, 3,
+                  0, 4, 0, 5,
+                  2, 1, 2, 2,
+                  2, 3, 2, 4);
+    cm.replaceSelection("xy", "start");
+    hasSelections(cm, 0, 0, 0, 0,
+                  0, 3, 0, 3,
+                  0, 6, 0, 6,
+                  2, 1, 2, 1,
+                  2, 4, 2, 4);
+    cm.replaceSelection("z\nf");
+    hasSelections(cm, 1, 1, 1, 1,
+                  2, 1, 2, 1,
+                  3, 1, 3, 1,
+                  6, 1, 6, 1,
+                  7, 1, 7, 1);
+    eq(cm.getValue(), "z\nfxy2z\nfxy4z\nfxy6\n123456\n1z\nfxy5z\nfxy");
+  });
+
+  function select(cm) {
+    var sels = [];
+    for (var i = 1; i < arguments.length; i++) {
+      var arg = arguments[i];
+      if (arg.head) sels.push(arg);
+      else sels.push({head: arg, anchor: arg});
+    }
+    cm.setSelections(sels, sels.length - 1);
+  }
+
+  testCM("indentSelection", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.indentSelection(4);
+    eq(cm.getValue(), "    foo\n    bar\nbaz");
+
+    select(cm, Pos(0, 2), Pos(0, 3), Pos(0, 4));
+    cm.indentSelection(-2);
+    eq(cm.getValue(), "  foo\n    bar\nbaz");
+
+    select(cm, {anchor: Pos(0, 0), head: Pos(1, 2)},
+           {anchor: Pos(1, 3), head: Pos(2, 0)});
+    cm.indentSelection(-2);
+    eq(cm.getValue(), "foo\n  bar\nbaz");
+  }, {value: "foo\nbar\nbaz"});
+
+  testCM("killLine", function(cm) {
+    select(cm, Pos(0, 1), Pos(0, 2), Pos(1, 1));
+    cm.execCommand("killLine");
+    eq(cm.getValue(), "f\nb\nbaz");
+    cm.execCommand("killLine");
+    eq(cm.getValue(), "fbbaz");
+    cm.setValue("foo\nbar\nbaz");
+    select(cm, Pos(0, 1), {anchor: Pos(0, 2), head: Pos(2, 1)});
+    cm.execCommand("killLine");
+    eq(cm.getValue(), "faz");
+  }, {value: "foo\nbar\nbaz"});
+
+  testCM("deleteLine", function(cm) {
+    select(cm, Pos(0, 0),
+           {head: Pos(0, 1), anchor: Pos(2, 0)},
+           Pos(4, 0));
+    cm.execCommand("deleteLine");
+    eq(cm.getValue(), "4\n6\n7");
+    select(cm, Pos(2, 1));
+    cm.execCommand("deleteLine");
+    eq(cm.getValue(), "4\n6\n");
+  }, {value: "1\n2\n3\n4\n5\n6\n7"});
+
+  testCM("deleteH", function(cm) {
+    select(cm, Pos(0, 4), {anchor: Pos(1, 4), head: Pos(1, 5)});
+    cm.execCommand("delWordAfter");
+    eq(cm.getValue(), "foo bar baz\nabc ef ghi\n");
+    cm.execCommand("delWordAfter");
+    eq(cm.getValue(), "foo  baz\nabc  ghi\n");
+    cm.execCommand("delCharBefore");
+    cm.execCommand("delCharBefore");
+    eq(cm.getValue(), "fo baz\nab ghi\n");
+    select(cm, Pos(0, 3), Pos(0, 4), Pos(0, 5));
+    cm.execCommand("delWordAfter");
+    eq(cm.getValue(), "fo \nab ghi\n");
+  }, {value: "foo bar baz\nabc def ghi\n"});
+
+  testCM("goLineStart", function(cm) {
+    select(cm, Pos(0, 2), Pos(0, 3), Pos(1, 1));
+    cm.execCommand("goLineStart");
+    hasCursors(cm, 0, 0, 1, 0);
+    select(cm, Pos(1, 1), Pos(0, 1));
+    cm.setExtending(true);
+    cm.execCommand("goLineStart");
+    hasSelections(cm, 0, 1, 0, 0,
+                  1, 1, 1, 0);
+  }, {value: "foo\nbar\nbaz"});
+
+  testCM("moveV", function(cm) {
+    select(cm, Pos(0, 2), Pos(1, 2));
+    cm.execCommand("goLineDown");
+    hasCursors(cm, 1, 2, 2, 2);
+    cm.execCommand("goLineUp");
+    hasCursors(cm, 0, 2, 1, 2);
+    cm.execCommand("goLineUp");
+    hasCursors(cm, 0, 0, 0, 2);
+    cm.execCommand("goLineUp");
+    hasCursors(cm, 0, 0);
+    select(cm, Pos(0, 2), Pos(1, 2));
+    cm.setExtending(true);
+    cm.execCommand("goLineDown");
+    hasSelections(cm, 0, 2, 2, 2);
+  }, {value: "12345\n12345\n12345"});
+
+  testCM("moveH", function(cm) {
+    select(cm, Pos(0, 1), Pos(0, 3), Pos(0, 5), Pos(2, 3));
+    cm.execCommand("goCharRight");
+    hasCursors(cm, 0, 2, 0, 4, 1, 0, 2, 4);
+    cm.execCommand("goCharLeft");
+    hasCursors(cm, 0, 1, 0, 3, 0, 5, 2, 3);
+    for (var i = 0; i < 15; i++)
+      cm.execCommand("goCharRight");
+    hasCursors(cm, 2, 4, 2, 5);
+  }, {value: "12345\n12345\n12345"});
+
+  testCM("newlineAndIndent", function(cm) {
+    select(cm, Pos(0, 5), Pos(1, 5));
+    cm.execCommand("newlineAndIndent");
+    hasCursors(cm, 1, 2, 3, 2);
+    eq(cm.getValue(), "x = [\n  1];\ny = [\n  2];");
+    cm.undo();
+    eq(cm.getValue(), "x = [1];\ny = [2];");
+    hasCursors(cm, 0, 5, 1, 5);
+    select(cm, Pos(0, 5), Pos(0, 6));
+    cm.execCommand("newlineAndIndent");
+    hasCursors(cm, 1, 2, 2, 0);
+    eq(cm.getValue(), "x = [\n  1\n];\ny = [2];");
+  }, {value: "x = [1];\ny = [2];", mode: "javascript"});
+
+  testCM("goDocStartEnd", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.execCommand("goDocStart");
+    hasCursors(cm, 0, 0);
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.execCommand("goDocEnd");
+    hasCursors(cm, 1, 3);
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.setExtending(true);
+    cm.execCommand("goDocEnd");
+    hasSelections(cm, 1, 1, 1, 3);
+  }, {value: "abc\ndef"});
+
+  testCM("selectionHistory", function(cm) {
+    for (var i = 0; i < 3; ++i)
+      cm.addSelection(Pos(0, i * 2), Pos(0, i * 2 + 1));
+    cm.execCommand("undoSelection");
+    eq(cm.getSelection(), "1\n2");
+    cm.execCommand("undoSelection");
+    eq(cm.getSelection(), "1");
+    cm.execCommand("undoSelection");
+    eq(cm.getSelection(), "");
+    eqCharPos(cm.getCursor(), Pos(0, 0));
+    cm.execCommand("redoSelection");
+    eq(cm.getSelection(), "1");
+    cm.execCommand("redoSelection");
+    eq(cm.getSelection(), "1\n2");
+    cm.execCommand("redoSelection");
+    eq(cm.getSelection(), "1\n2\n3");
+  }, {value: "1 2 3"});
+
+  testCM("selectionsMayTouch", function(cm) {
+    select(cm, Pos(0, 0), Pos(0, 2))
+    cm.setExtending(true);
+    cm.extendSelections([Pos(0, 2), Pos(0, 4)])
+    hasSelections(cm, 0, 0, 0, 2,
+                  0, 2, 0, 4)
+    cm.extendSelections([Pos(0, 3), Pos(0, 4)])
+    hasSelections(cm, 0, 0, 0, 4)
+  }, {selectionsMayTouch: true, value: "1234"})
+})();