Text Custom Extract

Node Function: The Text Custom Extract node extracts values of specified keys from JSON objects or arrays, supporting both precise matching and enhanced matching modes, with label filtering capabilities, ideal for data extraction and processing scenarios.

Inputs

Parameter Name	Input Selection	Data Type	Default Value	Value Range	Description
`json_data`	-	STRING	""	Multiline text	JSON object or array data
`key`	-	STRING	"zh"	Text	Key name to extract
`precision_match`	-	COMBO[STRING]	disabled	disabled, enabled	Precision matching mode switch
`label_filter`	Optional	STRING	""	Text	Filter by label values (comma separated, supports partial match)

Outputs

Output Name	Data Type	Description
`string`	STRING	Extracted value string

Function Description

Label Filtering

Filter support: Filter objects by label values before extracting specified keys
Multiple filters: Support comma-separated multiple filter conditions
Partial matching: Support partial string matching for flexible filtering
Chinese/English separators: Support both Chinese (，) and English (,) comma separators

Matching Modes

Precise matching (enabled): Only matches exactly identical key names
Enhanced matching (disabled): Supports multiple key name variants and language matching

Enhanced Matching Features

Case variants: Automatically matches different case combinations
Language mapping: Intelligently recognizes Chinese-English key name correspondences
- English related: en, English, eng, 英文, 英语
- Chinese related: zh, Chinese, chn, 中文
Common patterns: Supports common key name variants for coordinates, dimensions, etc.
- Coordinates: x/X, y/Y, pos_x, position_x
- Dimensions: width/w, height/h
- Identifiers: id/ID, name/NAME

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