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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import * as TextUtils from '../text_utils/text_utils.js';
/**
* @param {!TextUtils.TextRange.TextRange} range
* @return {!{start: !CodeMirror.Pos, end: !CodeMirror.Pos}}
*/
export function toPos(range) {
return {
start: new CodeMirror.Pos(range.startLine, range.startColumn),
end: new CodeMirror.Pos(range.endLine, range.endColumn)
};
}
/**
* @param {!CodeMirror.Pos} start
* @param {!CodeMirror.Pos} end
* @return {!TextUtils.TextRange.TextRange}
*/
export function toRange(start, end) {
return new TextUtils.TextRange.TextRange(start.line, start.ch, end.line, end.ch);
}
/**
* @param {!CodeMirror.ChangeObject} changeObject
* @return {{oldRange: !TextUtils.TextRange.TextRange, newRange: !TextUtils.TextRange.TextRange}}
*/
export function changeObjectToEditOperation(changeObject) {
const oldRange = toRange(changeObject.from, changeObject.to);
const newRange = oldRange.clone();
const linesAdded = changeObject.text.length;
if (linesAdded === 0) {
newRange.endLine = newRange.startLine;
newRange.endColumn = newRange.startColumn;
} else if (linesAdded === 1) {
newRange.endLine = newRange.startLine;
newRange.endColumn = newRange.startColumn + changeObject.text[0].length;
} else {
newRange.endLine = newRange.startLine + linesAdded - 1;
newRange.endColumn = changeObject.text[linesAdded - 1].length;
}
return {oldRange: oldRange, newRange: newRange};
}
/**
* @param {!CodeMirror} codeMirror
* @param {number} linesCount
* @return {!Array.}
*/
export function pullLines(codeMirror, linesCount) {
const lines = [];
codeMirror.eachLine(0, linesCount, onLineHandle);
return lines;
/**
* @param {!{text: string}} lineHandle
*/
function onLineHandle(lineHandle) {
lines.push(lineHandle.text);
}
}
/**
* @implements {TextUtils.TextUtils.TokenizerFactory}
* @unrestricted
*/
export class TokenizerFactory {
/**
* @override
* @param {string} mimeType
* @return {function(string, function(string, ?string, number, number))}
*/
createTokenizer(mimeType) {
const mode = CodeMirror.getMode({indentUnit: 2}, mimeType);
const state = CodeMirror.startState(mode);
function tokenize(line, callback) {
const stream = new CodeMirror.StringStream(line);
while (!stream.eol()) {
const style = mode.token(stream, state);
const value = stream.current();
callback(value, style, stream.start, stream.start + value.length);
stream.start = stream.pos;
}
}
return tokenize;
}
}
