markdown 尖叫青蛙自定义提取的正则表达式Cheatsheet

Posted 2021-05-05

## Google Analytics ID
#### Returns Google Analytics UA ID
```
["'](UA-.*?)["']
```
## Google Search Console
#### Returns Google Search Console Verification String
```
<meta\s+content=(?:'|")([^'">]+)(?:'|")\s+name=(?:'|")google-site-verification(?:'|")>
```
## Bing Webmaster Tools
#### Returns Bing Webmaster Tools Validation String
```
<meta\s+content=(?:'|")([^'">]+)(?:'|")\s+name=(?:'|")msvalidate.01(?:'|")>
```
## JSON-LD
#### Returns Property Name and Content
```
("image": ".*?")
```
```
("logo": ".*?")
```
```
("description": ".*?")
```
#### Returns all content within JSON-LD script tags
```
<script type=\"application\/ld\+json\">(.*?)</script>
```
## Microdata
#### Returns all itemtypes in the document
```
itemtype='(.*?)'
```
#### Returns all itemprops in the document
```
itemprop='(.*?)'
```
## Open Graph Protocol
#### Returns Open Graph Title when Content follows Property
```
<meta [^>]*property=[\"']og:title[\"'] [^>]*content=[\"']([^'^\"]+?)[\"'][^>]*>
```
#### Returns Open Graph Title when Property follows Content
```
<meta [^>]*content=[\"']([^'^\"]+?)[\"'] [^>]*property=[\"']og:title[\"'][^>]*>
```
## Twitter Cards
#### Returns Twitter Card Name when Content follows Name
```
<meta [^>]*name=[\"']twitter:title[\"'] [^>]*content=[\"']([^'^\"]+?)[\"'][^>]*>
```
#### Returns Twitter Card Name when Name follows Content
```
<meta [^>]*content=[\"']([^'^\"]+?)[\"'] [^>]*name=[\"']twitter:title[\"'][^>]*>
```
## Images
#### Returns Image Source URL for List Mode
```
<img\s.*?src=(?:'|")([^'">]+)(?:'|")
```

##### Sources:
* https://www.screamingfrog.co.uk/web-scraping/
* https://stackoverflow.com/questions/17712062/regex-for-parsing-facebook-open-graph-meta-tag
* https://stackoverflow.com/questions/18664997/how-can-i-use-regular-expression-to-grab-an-img-tag