dtable-utils
Version:
dtable common utils
65 lines (63 loc) • 1.72 kB
JavaScript
var hrefReg = /\[.+\]\(\S+\)|<img src=(\S+).+\/>|!\[\]\(\S+\)|<\S+>/g;
var imageReg1 = /^<img src="(\S+)" .+\/>/;
var imageReg2 = /^!\[\]\((\S+)\)/;
var linkReg1 = /^\[.+\]\(\S+\)/;
var linkReg2 = /^<(\S+)>$/;
var skipCharacterTypes = ['#', '`', '*', '[', ']', '-'];
function getLinks(hrefs) {
var hrefObj = {
links: [],
images: []
};
hrefs.forEach(function (href) {
if (href.search(linkReg1) >= 0) {
hrefObj.links.push(href);
} else if (href.search(linkReg2) >= 0) {
hrefObj.links.push(href.match(linkReg2)[1]);
} else {
var imageSrcs = href.match(imageReg1);
var imageSrcs1 = href.match(imageReg2);
if (imageSrcs) {
hrefObj.images.push(imageSrcs[1]);
} else if (imageSrcs1) {
hrefObj.images.push(imageSrcs1[1]);
}
}
});
return hrefObj;
}
function getPreviewContent(markdownContent) {
var preview = '';
var newMarkdownContent = markdownContent.replace(hrefReg, '');
var newMarkdownLength = newMarkdownContent.length;
for (var index = 0; index < newMarkdownLength; index++) {
var letter = newMarkdownContent[index];
if (skipCharacterTypes.includes(letter)) {
continue;
} else if (letter === '\n') {
preview += ' ';
} else {
preview += newMarkdownContent[index];
}
if (preview.length === 150) {
break;
}
}
var hrefs = markdownContent.match(hrefReg);
if (hrefs) {
var _getLinks = getLinks(hrefs),
images = _getLinks.images,
links = _getLinks.links;
return {
preview: preview,
images: images,
links: links
};
}
return {
preview: preview,
images: [],
links: []
};
}
export { getPreviewContent as default };