ComfyUI Node: iTools Line Loader

iTools Line Loader:

The iToolsLineLoader node is designed to efficiently extract a specific line from a multi-line text input based on a given index, referred to as the seed. This node is particularly useful when you need to retrieve specific lines from a block of text, such as a list of prompts or commands, without manually parsing the text. By leveraging the seed index, the node can dynamically select and return the desired line, making it a versatile tool for text manipulation tasks. Additionally, the node offers a fallback mechanism that ensures a valid line is returned even if the seed index is out of range, enhancing its robustness and reliability in various scenarios.

iTools Line Loader Input Parameters:

lines

The lines parameter is a multi-line string input that contains the text from which a specific line will be extracted. This parameter is essential as it provides the source text for the node to process. The default value is a string with three lines: cat, dog, and bunny. This parameter supports multiline input, allowing you to input a block of text with each line separated by a newline character. The content of this parameter directly impacts the output, as it determines the pool of lines from which the node can select.

seed

The seed parameter is an integer that specifies the index of the line to be extracted from the lines input. It acts as a pointer to the desired line, with indexing starting from zero. The default value is 0, meaning the first line will be selected by default. The parameter has a minimum value of 0 and a maximum value of 4095 (0xfff in hexadecimal). If the seed index is out of range, the node can use a fallback mechanism to ensure a valid line is returned. This parameter is crucial for dynamically selecting lines based on varying conditions or requirements.

iTools Line Loader Output Parameters:

line loaded

The line loaded output is a string that represents the line extracted from the lines input based on the specified seed index. This output is the primary result of the node's operation, providing the specific line requested. If the seed index is valid, the corresponding line is returned. If the index is out of range and the fallback mechanism is enabled, a line is selected using a modulo operation to wrap around the available lines. This output is essential for tasks that require specific lines from a text block.

count

The count output is an integer that indicates the total number of lines present in the lines input. This output provides additional context about the input text, allowing you to understand the range of valid seed indices. It is useful for validating the seed index and ensuring that it falls within the acceptable range. The count output can also be used to dynamically adjust the seed index or implement custom logic based on the number of lines available.

iTools Line Loader Usage Tips:

• Use the seed parameter to dynamically select lines based on external conditions or user input, allowing for flexible text processing.
• Leverage the fallback mechanism by setting the seed to values beyond the line count to test how the node wraps around and selects lines, ensuring robustness in your workflows.

iTools Line Loader Common Errors and Solutions:

IndexError: list index out of range

• Explanation: This error occurs when the seed index is greater than or equal to the number of lines in the lines input, and the fallback mechanism is not enabled.
• Solution: Ensure that the seed index is within the range of available lines, or enable the fallback mechanism by setting the fallback parameter to "Yes" to allow the node to wrap around and select a valid line.

ValueError: invalid literal for int() with base 10

• Explanation: This error might occur if the seed parameter is not properly set as an integer.
• Solution: Verify that the seed parameter is correctly specified as an integer within the allowed range (0 to 4095).