add hw2

node_modules/vscode-languageserver-textdocument/lib/esm/main.js

@@ -0,0 +1,264 @@
+/* --------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See License.txt in the project root for license information.
+ * ------------------------------------------------------------------------------------------ */
+'use strict';
+class FullTextDocument {
+    constructor(uri, languageId, version, content) {
+        this._uri = uri;
+        this._languageId = languageId;
+        this._version = version;
+        this._content = content;
+        this._lineOffsets = undefined;
+    }
+    get uri() {
+        return this._uri;
+    }
+    get languageId() {
+        return this._languageId;
+    }
+    get version() {
+        return this._version;
+    }
+    getText(range) {
+        if (range) {
+            const start = this.offsetAt(range.start);
+            const end = this.offsetAt(range.end);
+            return this._content.substring(start, end);
+        }
+        return this._content;
+    }
+    update(changes, version) {
+        for (const change of changes) {
+            if (FullTextDocument.isIncremental(change)) {
+                // makes sure start is before end
+                const range = getWellformedRange(change.range);
+                // update content
+                const startOffset = this.offsetAt(range.start);
+                const endOffset = this.offsetAt(range.end);
+                this._content = this._content.substring(0, startOffset) + change.text + this._content.substring(endOffset, this._content.length);
+                // update the offsets
+                const startLine = Math.max(range.start.line, 0);
+                const endLine = Math.max(range.end.line, 0);
+                let lineOffsets = this._lineOffsets;
+                const addedLineOffsets = computeLineOffsets(change.text, false, startOffset);
+                if (endLine - startLine === addedLineOffsets.length) {
+                    for (let i = 0, len = addedLineOffsets.length; i < len; i++) {
+                        lineOffsets[i + startLine + 1] = addedLineOffsets[i];
+                    }
+                }
+                else {
+                    if (addedLineOffsets.length < 10000) {
+                        lineOffsets.splice(startLine + 1, endLine - startLine, ...addedLineOffsets);
+                    }
+                    else { // avoid too many arguments for splice
+                        this._lineOffsets = lineOffsets = lineOffsets.slice(0, startLine + 1).concat(addedLineOffsets, lineOffsets.slice(endLine + 1));
+                    }
+                }
+                const diff = change.text.length - (endOffset - startOffset);
+                if (diff !== 0) {
+                    for (let i = startLine + 1 + addedLineOffsets.length, len = lineOffsets.length; i < len; i++) {
+                        lineOffsets[i] = lineOffsets[i] + diff;
+                    }
+                }
+            }
+            else if (FullTextDocument.isFull(change)) {
+                this._content = change.text;
+                this._lineOffsets = undefined;
+            }
+            else {
+                throw new Error('Unknown change event received');
+            }
+        }
+        this._version = version;
+    }
+    getLineOffsets() {
+        if (this._lineOffsets === undefined) {
+            this._lineOffsets = computeLineOffsets(this._content, true);
+        }
+        return this._lineOffsets;
+    }
+    positionAt(offset) {
+        offset = Math.max(Math.min(offset, this._content.length), 0);
+        const lineOffsets = this.getLineOffsets();
+        let low = 0, high = lineOffsets.length;
+        if (high === 0) {
+            return { line: 0, character: offset };
+        }
+        while (low < high) {
+            const mid = Math.floor((low + high) / 2);
+            if (lineOffsets[mid] > offset) {
+                high = mid;
+            }
+            else {
+                low = mid + 1;
+            }
+        }
+        // low is the least x for which the line offset is larger than the current offset
+        // or array.length if no line offset is larger than the current offset
+        const line = low - 1;
+        offset = this.ensureBeforeEOL(offset, lineOffsets[line]);
+        return { line, character: offset - lineOffsets[line] };
+    }
+    offsetAt(position) {
+        const lineOffsets = this.getLineOffsets();
+        if (position.line >= lineOffsets.length) {
+            return this._content.length;
+        }
+        else if (position.line < 0) {
+            return 0;
+        }
+        const lineOffset = lineOffsets[position.line];
+        if (position.character <= 0) {
+            return lineOffset;
+        }
+        const nextLineOffset = (position.line + 1 < lineOffsets.length) ? lineOffsets[position.line + 1] : this._content.length;
+        const offset = Math.min(lineOffset + position.character, nextLineOffset);
+        return this.ensureBeforeEOL(offset, lineOffset);
+    }
+    ensureBeforeEOL(offset, lineOffset) {
+        while (offset > lineOffset && isEOL(this._content.charCodeAt(offset - 1))) {
+            offset--;
+        }
+        return offset;
+    }
+    get lineCount() {
+        return this.getLineOffsets().length;
+    }
+    static isIncremental(event) {
+        const candidate = event;
+        return candidate !== undefined && candidate !== null &&
+            typeof candidate.text === 'string' && candidate.range !== undefined &&
+            (candidate.rangeLength === undefined || typeof candidate.rangeLength === 'number');
+    }
+    static isFull(event) {
+        const candidate = event;
+        return candidate !== undefined && candidate !== null &&
+            typeof candidate.text === 'string' && candidate.range === undefined && candidate.rangeLength === undefined;
+    }
+}
+export var TextDocument;
+(function (TextDocument) {
+    /**
+     * Creates a new text document.
+     *
+     * @param uri The document's uri.
+     * @param languageId  The document's language Id.
+     * @param version The document's initial version number.
+     * @param content The document's content.
+     */
+    function create(uri, languageId, version, content) {
+        return new FullTextDocument(uri, languageId, version, content);
+    }
+    TextDocument.create = create;
+    /**
+     * Updates a TextDocument by modifying its content.
+     *
+     * @param document the document to update. Only documents created by TextDocument.create are valid inputs.
+     * @param changes the changes to apply to the document.
+     * @param version the changes version for the document.
+     * @returns The updated TextDocument. Note: That's the same document instance passed in as first parameter.
+     *
+     */
+    function update(document, changes, version) {
+        if (document instanceof FullTextDocument) {
+            document.update(changes, version);
+            return document;
+        }
+        else {
+            throw new Error('TextDocument.update: document must be created by TextDocument.create');
+        }
+    }
+    TextDocument.update = update;
+    function applyEdits(document, edits) {
+        const text = document.getText();
+        const sortedEdits = mergeSort(edits.map(getWellformedEdit), (a, b) => {
+            const diff = a.range.start.line - b.range.start.line;
+            if (diff === 0) {
+                return a.range.start.character - b.range.start.character;
+            }
+            return diff;
+        });
+        let lastModifiedOffset = 0;
+        const spans = [];
+        for (const e of sortedEdits) {
+            const startOffset = document.offsetAt(e.range.start);
+            if (startOffset < lastModifiedOffset) {
+                throw new Error('Overlapping edit');
+            }
+            else if (startOffset > lastModifiedOffset) {
+                spans.push(text.substring(lastModifiedOffset, startOffset));
+            }
+            if (e.newText.length) {
+                spans.push(e.newText);
+            }
+            lastModifiedOffset = document.offsetAt(e.range.end);
+        }
+        spans.push(text.substr(lastModifiedOffset));
+        return spans.join('');
+    }
+    TextDocument.applyEdits = applyEdits;
+})(TextDocument || (TextDocument = {}));
+function mergeSort(data, compare) {
+    if (data.length <= 1) {
+        // sorted
+        return data;
+    }
+    const p = (data.length / 2) | 0;
+    const left = data.slice(0, p);
+    const right = data.slice(p);
+    mergeSort(left, compare);
+    mergeSort(right, compare);
+    let leftIdx = 0;
+    let rightIdx = 0;
+    let i = 0;
+    while (leftIdx < left.length && rightIdx < right.length) {
+        const ret = compare(left[leftIdx], right[rightIdx]);
+        if (ret <= 0) {
+            // smaller_equal -> take left to preserve order
+            data[i++] = left[leftIdx++];
+        }
+        else {
+            // greater -> take right
+            data[i++] = right[rightIdx++];
+        }
+    }
+    while (leftIdx < left.length) {
+        data[i++] = left[leftIdx++];
+    }
+    while (rightIdx < right.length) {
+        data[i++] = right[rightIdx++];
+    }
+    return data;
+}
+function computeLineOffsets(text, isAtLineStart, textOffset = 0) {
+    const result = isAtLineStart ? [textOffset] : [];
+    for (let i = 0; i < text.length; i++) {
+        const ch = text.charCodeAt(i);
+        if (isEOL(ch)) {
+            if (ch === 13 /* CharCode.CarriageReturn */ && i + 1 < text.length && text.charCodeAt(i + 1) === 10 /* CharCode.LineFeed */) {
+                i++;
+            }
+            result.push(textOffset + i + 1);
+        }
+    }
+    return result;
+}
+function isEOL(char) {
+    return char === 13 /* CharCode.CarriageReturn */ || char === 10 /* CharCode.LineFeed */;
+}
+function getWellformedRange(range) {
+    const start = range.start;
+    const end = range.end;
+    if (start.line > end.line || (start.line === end.line && start.character > end.character)) {
+        return { start: end, end: start };
+    }
+    return range;
+}
+function getWellformedEdit(textEdit) {
+    const range = getWellformedRange(textEdit.range);
+    if (range !== textEdit.range) {
+        return { newText: textEdit.newText, range };
+    }
+    return textEdit;
+}