笙默考试管理系统-MyExamTest----codemirror（22）

笙默考试管理系统-MyExamTest----codemirror（22）

目录

一、 笙默考试管理系统-MyExamTest

二、 笙默考试管理系统-MyExamTest

三、 笙默考试管理系统-MyExamTest

四、 笙默考试管理系统-MyExamTest

五、 笙默考试管理系统-MyExamTest

• 笙默考试管理系统-MyExamTest

  return {line: line, ch: ch};

        }

        function moveH(dir, unit) {

            var pos = dir < 0 ? sel.from : sel.to;

            if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit);

            setCursor(pos.line, pos.ch, true);

        }

• 笙默考试管理系统-MyExamTest

        function deleteH(dir, unit) {

            if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to);

            else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to);

            else replaceRange("", sel.from, findPosH(dir, unit));

            userSelChange = true;

        }

        var goalColumn = null;

        function moveV(dir, unit) {

            var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true);

            if (goalColumn != null) pos.x = goalColumn;

            if (unit == "page") dist = scroller.clientHeight;

            else if (unit == "line") dist = textHeight();

            var target = coordsChar(pos.x, pos.y + dist * dir + 2);

            setCursor(target.line, target.ch, true);

            goalColumn = pos.x;

        }

• 笙默考试管理系统-MyExamTest

        function selectWordAt(pos) {

            var line = getLine(pos.line).text;

            var start = pos.ch, end = pos.ch;

            while (start > 0 && isWordChar(line.charAt(start - 1))) --start;

            while (end < line.length && isWordChar(line.charAt(end))) ++end;

            setSelectionUser({line: pos.line, ch: start}, {line: pos.line, ch: end});

        }

        function selectLine(line) {

            setSelectionUser({line: line, ch: 0}, {line: line, ch: getLine(line).text.length});

        }

        function indentSelected(mode) {

            if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);

            var e = sel.to.line - (sel.to.ch ? 0 : 1);

            for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);

        }

• 笙默考试管理系统-MyExamTest

        function indentLine(n, how) {

            if (!how) how = "add";

            if (how == "smart") {

                if (!mode.indent) how = "prev";

                else var state = getStateBefore(n);

            }

• 笙默考试管理系统-MyExamTest

            var line = getLine(n), curSpace = line.indentation(options.tabSize),

                curSpaceString = line.text.match(/^\s*/)[0], indentation;

            if (how == "prev") {

                if (n) indentation = getLine(n-1).indentation(options.tabSize);

                else indentation = 0;