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import { Disposable, Position, TextDocumentContentChangeEvent, TextEditor, TextLine, window, workspace } from "vscode";
import { Config, ConfigType } from "../Config";
import CodeParser from "./CodeParser";
import CParser from "./CParser";
import CppParser from "./CppParser";
/**
*
* Checks if the event matches the specified guidelines and if a parser exists for this language
*
* @export
* @class CodeParserController
*/
export default class CodeParserController {
private disposable: Disposable;
private indicators: string[] = [];
/**
* Creates an instance of CodeParserController
*
* @memberOf CodeParserController
*/
public constructor() {
const subscriptions: Disposable[] = [];
// Hand off the event to the parser if a valid parser is found
workspace.onDidChangeTextDocument((event) => {
const activeEditor: TextEditor = window.activeTextEditor;
if (activeEditor && event.document === activeEditor.document) {
this.readConfig();
this.onEvent(activeEditor, event.contentChanges[0]);
}
}, this, subscriptions);
this.disposable = Disposable.from(...subscriptions);
}
/**
*
* Disposes of the subscriptions
*
* @memberOf CodeParserController
*/
public dispose() {
this.disposable.dispose();
}
/***************************************************************************
Implementation
***************************************************************************/
private readConfig() {
this.indicators.pop();
this.indicators.push(workspace.getConfiguration(ConfigType.generic).get<string>(Config.commentStart, "/**"));
}
private check(activeEditor: TextEditor, event: TextDocumentContentChangeEvent): boolean {
if (activeEditor == null || event.text == null) {
return false;
}
const activeSelection: Position = activeEditor.selection.active;
const activeLine: TextLine = activeEditor.document.lineAt(activeSelection.line);
const activeChar: string = activeLine.text.charAt(activeSelection.character);
const startsWith: boolean = event.text.startsWith("\n") || event.text.startsWith("\r\n");
// Check if enter was pressed. Note the !
if (!((activeChar === "") && startsWith)) {
return false;
}
const cont: string = activeLine.text.trim();
let found: boolean = false;
this.indicators.forEach((element: string) => {
if (element === cont) { // Compare the content from the line with the valid indicators
found = true;
return;
}
});
return found;
}
private onEvent(activeEditor: TextEditor, event: TextDocumentContentChangeEvent) {
if (!this.check(activeEditor, event)) {
return null;
}
const lang: string = activeEditor.document.languageId;
let parser: CodeParser;
switch (lang) {
case "c":
parser = new CParser();
break;
case "cpp":
parser = new CppParser();
break;
default:
// tslint:disable-next-line:no-console
console.log("No comments can be generated for language: " + lang);
return null;
}
parser.Parse(activeEditor, event).GenerateDoc();
}
}
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