本文整理汇总了TypeScript中vscode-html-languageservice.LanguageService.createScanner方法的典型用法代码示例。如果您正苦于以下问题：TypeScript LanguageService.createScanner方法的具体用法？TypeScript LanguageService.createScanner怎么用？TypeScript LanguageService.createScanner使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类vscode-html-languageservice.LanguageService的用法示例。
在下文中一共展示了LanguageService.createScanner方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: getEmbeddedContentForNode
function getEmbeddedContentForNode(languageService: LanguageService, document: TextDocument, node: Node): { languageId: string, start: number, end: number } {
if (node.tag === 'style') {
let scanner = languageService.createScanner(document.getText().substring(node.start, node.end));
let token = scanner.scan();
while (token !== TokenType.EOS) {
if (token === TokenType.Styles) {
return { languageId: 'css', start: node.start + scanner.getTokenOffset(), end: node.start + scanner.getTokenEnd() };
}
token = scanner.scan();
}
} else if (node.tag === 'script') {
let scanner = languageService.createScanner(document.getText().substring(node.start, node.end));
let token = scanner.scan();
let isTypeAttribute = false;
let languageId = 'javascript';
while (token !== TokenType.EOS) {
if (token === TokenType.AttributeName) {
isTypeAttribute = scanner.getTokenText() === 'type';
} else if (token === TokenType.AttributeValue) {
if (isTypeAttribute) {
if (/["'](text|application)\/(java|ecma)script["']/.test(scanner.getTokenText())) {
languageId = 'javascript';
} else {
languageId = void 0;
}
}
isTypeAttribute = false;
} else if (token === TokenType.Script) {
return { languageId, start: node.start + scanner.getTokenOffset(), end: node.start + scanner.getTokenEnd() };
}
token = scanner.scan();
}
}
return void 0;
}示例2: getDocumentRegions
export function getDocumentRegions(languageService: LanguageService, document: TextDocument): HTMLDocumentRegions {
let regions: EmbeddedRegion[] = [];
let scanner = languageService.createScanner(document.getText());
let lastTagName: string = '';
let lastAttributeName: string | null = null;
let languageIdFromType: string | undefined = undefined;
let importedScripts: string[] = [];
let token = scanner.scan();
while (token !== TokenType.EOS) {
switch (token) {
case TokenType.StartTag:
lastTagName = scanner.getTokenText();
lastAttributeName = null;
languageIdFromType = 'javascript';
break;
case TokenType.Styles:
regions.push({ languageId: 'css', start: scanner.getTokenOffset(), end: scanner.getTokenEnd() });
break;
case TokenType.Script:
regions.push({ languageId: languageIdFromType, start: scanner.getTokenOffset(), end: scanner.getTokenEnd() });
break;
case TokenType.AttributeName:
lastAttributeName = scanner.getTokenText();
break;
case TokenType.AttributeValue:
if (lastAttributeName === 'src' && lastTagName.toLowerCase() === 'script') {
let value = scanner.getTokenText();
if (value[0] === '\'' || value[0] === '"') {
value = value.substr(1, value.length - 1);
}
importedScripts.push(value);
} else if (lastAttributeName === 'type' && lastTagName.toLowerCase() === 'script') {
if (/["'](module|(text|application)\/(java|ecma)script)["']/.test(scanner.getTokenText())) {
languageIdFromType = 'javascript';
} else {
languageIdFromType = void 0;
}
} else {
let attributeLanguageId = getAttributeLanguage(lastAttributeName!);
if (attributeLanguageId) {
let start = scanner.getTokenOffset();
let end = scanner.getTokenEnd();
let firstChar = document.getText()[start];
if (firstChar === '\'' || firstChar === '"') {
start++;
end--;
}
regions.push({ languageId: attributeLanguageId, start, end, attributeValue: true });
}
}
lastAttributeName = null;
break;
}
token = scanner.scan();
}
return {
getLanguageRanges: (range: Range) => getLanguageRanges(document, regions, range),
getEmbeddedDocument: (languageId: string, ignoreAttributeValues: boolean) => getEmbeddedDocument(document, regions, languageId, ignoreAttributeValues),
getLanguageAtPosition: (position: Position) => getLanguageAtPosition(document, regions, position),
getLanguagesInDocument: () => getLanguagesInDocument(document, regions),
getImportedScripts: () => importedScripts
};
}示例3: getHTMLMode
export function getHTMLMode(htmlLanguageService: HTMLLanguageService): LanguageMode {
let globalSettings: Settings = {};
let htmlDocuments = getLanguageModelCache<HTMLDocument>(10, 60, document => htmlLanguageService.parseHTMLDocument(document));
let completionParticipants = [];
return {
getId() {
return 'html';
},
configure(options: any) {
globalSettings = options;
},
doComplete(document: TextDocument, position: Position, settings: Settings = globalSettings) {
let options = settings && settings.html && settings.html.suggest;
let doAutoComplete = settings && settings.html && settings.html.autoClosingTags;
if (doAutoComplete) {
options.hideAutoCompleteProposals = true;
}
const htmlDocument = htmlDocuments.get(document);
const offset = document.offsetAt(position);
const node = htmlDocument.findNodeBefore(offset);
const scanner = htmlLanguageService.createScanner(document.getText(), node.start);
let token = scanner.scan();
while (token !== TokenType.EOS && scanner.getTokenOffset() <= offset) {
if (token === TokenType.Content && offset <= scanner.getTokenEnd()) {
completionParticipants.forEach(participant => { if (participant.onHtmlContent) { participant.onHtmlContent(); } });
break;
}
token = scanner.scan();
}
return htmlLanguageService.doComplete(document, position, htmlDocument, options);
},
setCompletionParticipants(registeredCompletionParticipants: any[]) {
completionParticipants = registeredCompletionParticipants;
},
doHover(document: TextDocument, position: Position) {
return htmlLanguageService.doHover(document, position, htmlDocuments.get(document));
},
findDocumentHighlight(document: TextDocument, position: Position) {
return htmlLanguageService.findDocumentHighlights(document, position, htmlDocuments.get(document));
},
findDocumentLinks(document: TextDocument, documentContext: DocumentContext) {
return htmlLanguageService.findDocumentLinks(document, documentContext);
},
findDocumentSymbols(document: TextDocument) {
return htmlLanguageService.findDocumentSymbols(document, htmlDocuments.get(document));
},
format(document: TextDocument, range: Range, formatParams: FormattingOptions, settings: Settings = globalSettings) {
let formatSettings: HTMLFormatConfiguration = settings && settings.html && settings.html.format;
if (formatSettings) {
formatSettings = merge(formatSettings, {});
} else {
formatSettings = {};
}
if (formatSettings.contentUnformatted) {
formatSettings.contentUnformatted = formatSettings.contentUnformatted + ',script';
} else {
formatSettings.contentUnformatted = 'script';
}
formatSettings = merge(formatParams, formatSettings);
return htmlLanguageService.format(document, range, formatSettings);
},
doAutoClose(document: TextDocument, position: Position) {
let offset = document.offsetAt(position);
let text = document.getText();
if (offset > 0 && text.charAt(offset - 1).match(/[>\/]/g)) {
return htmlLanguageService.doTagComplete(document, position, htmlDocuments.get(document));
}
return null;
},
onDocumentRemoved(document: TextDocument) {
htmlDocuments.onDocumentRemoved(document);
},
dispose() {
htmlDocuments.dispose();
}
};
}示例4: getHTMLFoldingRegions
export function getHTMLFoldingRegions(htmlLanguageService: HTMLLanguageService, document: TextDocument, range: Range): FoldingRange[] {
const scanner = htmlLanguageService.createScanner(document.getText());
let token = scanner.scan();
let ranges: FoldingRange[] = [];
let stack: { startLine: number, tagName: string }[] = [];
let lastTagName = null;
let prevStart = -1;
function addRange(range: FoldingRange) {
ranges.push(range);
prevStart = range.startLine;
}
while (token !== TokenType.EOS) {
switch (token) {
case TokenType.StartTag: {
let tagName = scanner.getTokenText();
let startLine = document.positionAt(scanner.getTokenOffset()).line;
stack.push({ startLine, tagName });
lastTagName = tagName;
break;
}
case TokenType.EndTag: {
lastTagName = scanner.getTokenText();
break;
}
case TokenType.StartTagClose:
if (!lastTagName || !isEmptyElement(lastTagName)) {
break;
}
// fallthrough
case TokenType.EndTagClose:
case TokenType.StartTagSelfClose: {
let i = stack.length - 1;
while (i >= 0 && stack[i].tagName !== lastTagName) {
i--;
}
if (i >= 0) {
let stackElement = stack[i];
stack.length = i;
let line = document.positionAt(scanner.getTokenOffset()).line;
let startLine = stackElement.startLine;
let endLine = line - 1;
if (endLine > startLine && prevStart !== startLine) {
addRange({ startLine, endLine });
}
}
break;
}
case TokenType.Comment: {
let startLine = document.positionAt(scanner.getTokenOffset()).line;
let text = scanner.getTokenText();
let m = text.match(/^\s*#(region\b)|(endregion\b)/);
if (m) {
if (m[1]) { // start pattern match
stack.push({ startLine, tagName: '' }); // empty tagName marks region
} else {
let i = stack.length - 1;
while (i >= 0 && stack[i].tagName.length) {
i--;
}
if (i >= 0) {
let stackElement = stack[i];
stack.length = i;
let endLine = startLine;
startLine = stackElement.startLine;
if (endLine > startLine && prevStart !== startLine) {
addRange({ startLine, endLine, type: FoldingRangeType.Region });
}
}
}
} else {
let endLine = document.positionAt(scanner.getTokenOffset() + scanner.getTokenLength()).line;
if (startLine < endLine) {
addRange({ startLine, endLine, type: FoldingRangeType.Comment });
}
}
break;
}
}
token = scanner.scan();
}
return ranges;
}