Correct an XPath in description.
Akinori MUSHA
1 changed files with 1 additions and 1 deletions
+ 1
- 1
app/models/agents/website_agent.rb
@@ -31,7 +31,7 @@ module Agents |
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"body_text": { "css": "div.main", "value": ".//text()" }
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} |
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- "@_attr_" is the XPath expression to extract the value of an attribute named _attr_ from a node, and "//text()" is to extract all the enclosed texts. You can also use [XPath functions](http://www.w3.org/TR/xpath/#section-String-Functions) like `normalize-space` to strip and squeeze whitespace, `substring-after` to extract part of a text, and `translate` to remove comma from a formatted number, etc. Note that these functions take a string, not a node set, so what you may think would be written as `normalize-text(.//text())` should actually be `normalize-text(.)`. |
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+ "@_attr_" is the XPath expression to extract the value of an attribute named _attr_ from a node, and ".//text()" is to extract all the enclosed texts. You can also use [XPath functions](http://www.w3.org/TR/xpath/#section-String-Functions) like `normalize-space` to strip and squeeze whitespace, `substring-after` to extract part of a text, and `translate` to remove comma from a formatted number, etc. Note that these functions take a string, not a node set, so what you may think would be written as `normalize-text(.//text())` should actually be `normalize-text(.)`. |
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When parsing JSON, these sub-hashes specify [JSONPaths](http://goessner.net/articles/JsonPath/) to the values that you care about. For example: |
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