40 lines
2.0 KiB
Markdown
40 lines
2.0 KiB
Markdown
# Text Custom Extract
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**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.
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## Inputs
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| Parameter Name | Input Selection | Data Type | Default Value | Value Range | Description |
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| -------------- | --------------- | --------- | ------------- | ----------- | ----------- |
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| `json_data` | - | STRING | "" | Multiline text | JSON object or array data |
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| `key` | - | STRING | "zh" | Text | Key name to extract |
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| `precision_match` | - | COMBO[STRING] | disabled | disabled, enabled | Precision matching mode switch |
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| `label_filter` | Optional | STRING | "" | Text | Filter by label values (comma separated, supports partial match) |
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## Outputs
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| Output Name | Data Type | Description |
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|-------------|-----------|-------------|
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| `string` | STRING | Extracted value string |
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## Function Description
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### Label Filtering
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- **Filter support**: Filter objects by label values before extracting specified keys
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- **Multiple filters**: Support comma-separated multiple filter conditions
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- **Partial matching**: Support partial string matching for flexible filtering
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- **Chinese/English separators**: Support both Chinese (，) and English (,) comma separators
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### Matching Modes
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- **Precise matching (enabled)**: Only matches exactly identical key names
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- **Enhanced matching (disabled)**: Supports multiple key name variants and language matching
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### Enhanced Matching Features
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- **Case variants**: Automatically matches different case combinations
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- **Language mapping**: Intelligently recognizes Chinese-English key name correspondences
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- English related: en, English, eng, 英文, 英语
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- Chinese related: zh, Chinese, chn, 中文
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- **Common patterns**: Supports common key name variants for coordinates, dimensions, etc.
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- Coordinates: x/X, y/Y, pos_x, position_x
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- Dimensions: width/w, height/h
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- Identifiers: id/ID, name/NAME |