本文整理汇总了TypeScript中dom5.predicates类的典型用法代码示例。如果您正苦于以下问题：TypeScript predicates类的具体用法？TypeScript predicates怎么用？TypeScript predicates使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了predicates类的9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: attributeSelectorToPredicate
function attributeSelectorToPredicate(selector: cssWhat.Attribute):
dom5.Predicate {
switch (selector.action) {
case 'exists':
return dom5.predicates.hasAttr(selector.name);
case 'equals':
return dom5.predicates.hasAttrValue(selector.name, selector.value);
case 'start':
return (el) => {
const attrValue = dom5.getAttribute(el, selector.name);
return attrValue != null && attrValue.startsWith(selector.value);
};
case 'end':
return (el) => {
const attrValue = dom5.getAttribute(el, selector.name);
return attrValue != null && attrValue.endsWith(selector.value);
};
case 'element':
return dom5.predicates.hasSpaceSeparatedAttrValue(
selector.name, selector.value);
case 'any':
return (el) => {
const attrValue = dom5.getAttribute(el, selector.name);
return attrValue != null && attrValue.includes(selector.value);
};
}
const never: never = selector.action;
throw new Error(
`Unexpected type of attribute matcher from CSS parser ${never}`);
}示例2: simpleSelectorToPredicate
function simpleSelectorToPredicate(
selector: cssWhat.Simple, isPolymerTemplate: boolean) {
switch (selector.type) {
case 'adjacent':
case 'child':
case 'descendant':
case 'parent':
case 'sibling':
case 'pseudo':
throw new Error(`Unsupported CSS operator: ${selector.type}`);
case 'attribute':
if (isPolymerTemplate) {
return dom5.predicates.OR(
attributeSelectorToPredicate(selector),
attributeSelectorToPredicate(
{...selector, name: selector.name + '$'}));
}
return attributeSelectorToPredicate(selector);
case 'tag':
return dom5.predicates.hasTagName(selector.name);
case 'universal':
return () => true;
}
const never: never = selector;
throw new Error(`Unexpected node type from css parser: ${never}`);
}示例3: createLinks
export function createLinks(
html: string,
baseUrl: string,
deps: Set<string>,
absolute: boolean = false): string {
const ast = parse5.parse(html, {locationInfo: true});
const baseTag = dom5.query(ast, dom5.predicates.hasTagName('base'));
const baseTagHref = baseTag ? dom5.getAttribute(baseTag, 'href') : '';
// parse5 always produces a <head> element.
const head = dom5.query(ast, dom5.predicates.hasTagName('head'))!;
for (const dep of deps) {
let href;
if (absolute && !baseTagHref) {
href = absUrl(dep);
} else {
href = relativeUrl(absUrl(baseUrl), absUrl(dep));
}
const link = dom5.constructors.element('link');
dom5.setAttribute(link, 'rel', 'prefetch');
dom5.setAttribute(link, 'href', href);
dom5.append(head, link);
}
dom5.removeFakeRootElements(ast);
return parse5.serialize(ast);
}示例4: _addSharedImportsToShell
_addSharedImportsToShell(bundles: Map<string, string[]>): string {
console.assert(this.shell != null);
let shellDeps = bundles.get(this.shell)
.map((d) => path.relative(path.dirname(this.shell), d));
let file = this.analyzer.files.get(this.shell);
console.assert(file != null);
let contents = file.contents.toString();
let doc = dom5.parse(contents);
let imports = dom5.queryAll(doc, dom5.predicates.AND(
dom5.predicates.hasTagName('link'),
dom5.predicates.hasAttrValue('rel', 'import')
));
// Remove all imports that are in the shared deps list so that we prefer
// the ordering or shared deps. Any imports left should be independent of
// ordering of shared deps.
let shellDepsSet = new Set(shellDeps);
for (let _import of imports) {
if (shellDepsSet.has(dom5.getAttribute(_import, 'href'))) {
dom5.remove(_import);
}
}
// Append all shared imports to the end of <head>
let head = dom5.query(doc, dom5.predicates.hasTagName('head'));
for (let dep of shellDeps) {
let newImport = dom5.constructors.element('link');
dom5.setAttribute(newImport, 'rel', 'import');
dom5.setAttribute(newImport, 'href', dep);
dom5.append(head, newImport);
}
let newContents = dom5.serialize(doc);
return newContents;
}示例5:
const hasMarker = (doc: ASTNode, id: string) => {
const marker = dom5.query(
doc,
dom5.predicates.AND(
dom5.predicates.hasTagName('div'),
dom5.predicates.hasAttrValue('id', id)));
return marker != null;
};示例6: test
test('bundle documents should not have tags added to them', async () => {
const {ast} = await bundle('imports/simple-import.html');
assert.isNull(dom5.query(
ast,
dom5.predicates.OR(
dom5.predicates.hasTagName('html'),
dom5.predicates.hasTagName('head'),
dom5.predicates.hasTagName('body'))));
});示例7: _moveUnhiddenHtmlImportsIntoHiddenDiv
/**
* Move any remaining htmlImports that are not inside the hidden div
* already, into the hidden div.
*/
private _moveUnhiddenHtmlImportsIntoHiddenDiv(ast: ASTNode) {
const unhiddenHtmlImports = dom5.queryAll(
ast,
dom5.predicates.AND(
matchers.eagerHtmlImport,
dom5.predicates.NOT(matchers.inHiddenDiv)));
for (const htmlImport of unhiddenHtmlImports) {
removeElementAndNewline(htmlImport);
dom5.append(this._findOrCreateHiddenDiv(ast), htmlImport);
}
}示例8: test
test('works for elements', async () => {
const liTags =
dom5.queryAll(document.ast, dom5.predicates.hasTagName('li'));
assert.equal(liTags.length, 4);
assert.deepEqual(
await underliner.underline(document.sourceRangeForNode(liTags[0]!)!),
`
<li>1
~~~~~
<li>2</li>
~~~~~~~~`);
assert.deepEqual(
await underliner.underline(document.sourceRangeForNode(liTags[1]!)!),
`
<li>2</li>
~~~~~~~~~~`);
assert.deepEqual(
await underliner.underline(document.sourceRangeForNode(liTags[2]!)), `
<li><li>
~~~~`);
assert.deepEqual(
await underliner.underline(document.sourceRangeForNode(liTags[3]!)), `
<li><li>
~~~~
</ul>
~~~~~~`);
const pTags =
dom5.queryAll(document.ast, dom5.predicates.hasTagName('p'));
assert.equal(pTags.length, 2);
assert.deepEqual(
await underliner.underline(document.sourceRangeForNode(pTags[0]!)), `
<p>
~~~
This is a paragraph without a closing tag.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<p>This is a paragraph with a closing tag.</p>
~~~~`);
assert.deepEqual(
await underliner.underline(document.sourceRangeForNode(pTags[1]!)), `
<p>This is a paragraph with a closing tag.</p>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`);
});示例9: ParsedHtmlDocument
/**
* Parse html into ASTs.
*
* @param {string} htmlString an HTML document.
* @param {string} href is the path of the document.
*/
parse(
contents: string, url: ResolvedUrl, urlResolver: UrlResolver,
inlineInfo?: InlineDocInfo<any>): ParsedHtmlDocument {
const ast = parseHtml(contents, {locationInfo: true});
// There should be at most one <base> tag and it must be inside <head> tag.
const baseTag = query(
ast,
p.AND(
p.parentMatches(p.hasTagName('head')),
p.hasTagName('base'),
p.hasAttr('href')));
let baseUrl;
if (baseTag) {
const baseHref = getAttribute(baseTag, 'href')! as FileRelativeUrl;
baseUrl = urlResolver.resolve(baseHref, url, undefined);
} else {
baseUrl = url;
}
const isInline = !!inlineInfo;
inlineInfo = inlineInfo || {};
return new ParsedHtmlDocument({
url,
baseUrl,
contents,
ast,
locationOffset: inlineInfo.locationOffset,
astNode: inlineInfo.astNode,
isInline,
});
}