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ext-elastic_tabstops_lite.js
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ext-elastic_tabstops_lite.js
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ace.define("ace/ext/elastic_tabstops_lite",["require","exports","module","ace/editor","ace/config"], function(require, exports, module){"use strict";
var ElasticTabstopsLite = /** @class */ (function () {
function ElasticTabstopsLite(editor) {
this.$editor = editor;
var self = this;
var changedRows = [];
var recordChanges = false;
this.onAfterExec = function () {
recordChanges = false;
self.processRows(changedRows);
changedRows = [];
};
this.onExec = function () {
recordChanges = true;
};
this.onChange = function (delta) {
if (recordChanges) {
if (changedRows.indexOf(delta.start.row) == -1)
changedRows.push(delta.start.row);
if (delta.end.row != delta.start.row)
changedRows.push(delta.end.row);
}
};
}
ElasticTabstopsLite.prototype.processRows = function (rows) {
this.$inChange = true;
var checkedRows = [];
for (var r = 0, rowCount = rows.length; r < rowCount; r++) {
var row = rows[r];
if (checkedRows.indexOf(row) > -1)
continue;
var cellWidthObj = this.$findCellWidthsForBlock(row);
var cellWidths = this.$setBlockCellWidthsToMax(cellWidthObj.cellWidths);
var rowIndex = cellWidthObj.firstRow;
for (var w = 0, l = cellWidths.length; w < l; w++) {
var widths = cellWidths[w];
checkedRows.push(rowIndex);
this.$adjustRow(rowIndex, widths);
rowIndex++;
}
}
this.$inChange = false;
};
ElasticTabstopsLite.prototype.$findCellWidthsForBlock = function (row) {
var cellWidths = [], widths;
var rowIter = row;
while (rowIter >= 0) {
widths = this.$cellWidthsForRow(rowIter);
if (widths.length == 0)
break;
cellWidths.unshift(widths);
rowIter--;
}
var firstRow = rowIter + 1;
rowIter = row;
var numRows = this.$editor.session.getLength();
while (rowIter < numRows - 1) {
rowIter++;
widths = this.$cellWidthsForRow(rowIter);
if (widths.length == 0)
break;
cellWidths.push(widths);
}
return { cellWidths: cellWidths, firstRow: firstRow };
};
ElasticTabstopsLite.prototype.$cellWidthsForRow = function (row) {
var selectionColumns = this.$selectionColumnsForRow(row);
var tabs = [-1].concat(this.$tabsForRow(row));
var widths = tabs.map(function (el) { return 0; }).slice(1);
var line = this.$editor.session.getLine(row);
for (var i = 0, len = tabs.length - 1; i < len; i++) {
var leftEdge = tabs[i] + 1;
var rightEdge = tabs[i + 1];
var rightmostSelection = this.$rightmostSelectionInCell(selectionColumns, rightEdge);
var cell = line.substring(leftEdge, rightEdge);
widths[i] = Math.max(cell.replace(/\s+$/g, '').length, rightmostSelection - leftEdge);
}
return widths;
};
ElasticTabstopsLite.prototype.$selectionColumnsForRow = function (row) {
var selections = [], cursor = this.$editor.getCursorPosition();
if (this.$editor.session.getSelection().isEmpty()) {
if (row == cursor.row)
selections.push(cursor.column);
}
return selections;
};
ElasticTabstopsLite.prototype.$setBlockCellWidthsToMax = function (cellWidths) {
var startingNewBlock = true, blockStartRow, blockEndRow, maxWidth;
var columnInfo = this.$izip_longest(cellWidths);
for (var c = 0, l = columnInfo.length; c < l; c++) {
var column = columnInfo[c];
if (!column.push) {
console.error(column);
continue;
}
column.push(NaN);
for (var r = 0, s = column.length; r < s; r++) {
var width = column[r];
if (startingNewBlock) {
blockStartRow = r;
maxWidth = 0;
startingNewBlock = false;
}
if (isNaN(width)) {
blockEndRow = r;
for (var j = blockStartRow; j < blockEndRow; j++) {
cellWidths[j][c] = maxWidth;
}
startingNewBlock = true;
}
maxWidth = Math.max(maxWidth, width);
}
}
return cellWidths;
};
ElasticTabstopsLite.prototype.$rightmostSelectionInCell = function (selectionColumns, cellRightEdge) {
var rightmost = 0;
if (selectionColumns.length) {
var lengths = [];
for (var s = 0, length = selectionColumns.length; s < length; s++) {
if (selectionColumns[s] <= cellRightEdge)
lengths.push(s);
else
lengths.push(0);
}
rightmost = Math.max.apply(Math, lengths);
}
return rightmost;
};
ElasticTabstopsLite.prototype.$tabsForRow = function (row) {
var rowTabs = [], line = this.$editor.session.getLine(row), re = /\t/g, match;
while ((match = re.exec(line)) != null) {
rowTabs.push(match.index);
}
return rowTabs;
};
ElasticTabstopsLite.prototype.$adjustRow = function (row, widths) {
var rowTabs = this.$tabsForRow(row);
if (rowTabs.length == 0)
return;
var bias = 0, location = -1;
var expandedSet = this.$izip(widths, rowTabs);
for (var i = 0, l = expandedSet.length; i < l; i++) {
var w = expandedSet[i][0], it = expandedSet[i][1];
location += 1 + w;
it += bias;
var difference = location - it;
if (difference == 0)
continue;
var partialLine = this.$editor.session.getLine(row).substr(0, it);
var strippedPartialLine = partialLine.replace(/\s*$/g, "");
var ispaces = partialLine.length - strippedPartialLine.length;
if (difference > 0) {
this.$editor.session.getDocument().insertInLine({ row: row, column: it + 1 }, Array(difference + 1).join(" ") + "\t");
this.$editor.session.getDocument().removeInLine(row, it, it + 1);
bias += difference;
}
if (difference < 0 && ispaces >= -difference) {
this.$editor.session.getDocument().removeInLine(row, it + difference, it);
bias += difference;
}
}
};
ElasticTabstopsLite.prototype.$izip_longest = function (iterables) {
if (!iterables[0])
return [];
var longest = iterables[0].length;
var iterablesLength = iterables.length;
for (var i = 1; i < iterablesLength; i++) {
var iLength = iterables[i].length;
if (iLength > longest)
longest = iLength;
}
var expandedSet = [];
for (var l = 0; l < longest; l++) {
var set = [];
for (var i = 0; i < iterablesLength; i++) {
if (iterables[i][l] === "")
set.push(NaN);
else
set.push(iterables[i][l]);
}
expandedSet.push(set);
}
return expandedSet;
};
ElasticTabstopsLite.prototype.$izip = function (widths, tabs) {
var size = widths.length >= tabs.length ? tabs.length : widths.length;
var expandedSet = [];
for (var i = 0; i < size; i++) {
var set = [widths[i], tabs[i]];
expandedSet.push(set);
}
return expandedSet;
};
return ElasticTabstopsLite;
}());
exports.ElasticTabstopsLite = ElasticTabstopsLite;
var Editor = require("../editor").Editor;
require("../config").defineOptions(Editor.prototype, "editor", {
useElasticTabstops: {
set: function (val) {
if (val) {
if (!this.elasticTabstops)
this.elasticTabstops = new ElasticTabstopsLite(this);
this.commands.on("afterExec", this.elasticTabstops.onAfterExec);
this.commands.on("exec", this.elasticTabstops.onExec);
this.on("change", this.elasticTabstops.onChange);
}
else if (this.elasticTabstops) {
this.commands.removeListener("afterExec", this.elasticTabstops.onAfterExec);
this.commands.removeListener("exec", this.elasticTabstops.onExec);
this.removeListener("change", this.elasticTabstops.onChange);
}
}
}
});
}); (function() {
ace.require(["ace/ext/elastic_tabstops_lite"], function(m) {
if (typeof module == "object" && typeof exports == "object" && module) {
module.exports = m;
}
});
})();

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