Add files via upload
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Drift Johnson
@@ -0,0 +1,518 @@
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"""
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DJZ Prompt Extractor V2 - ComfyUI Custom Node
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Extracts text prompts from PNG image metadata generated by ComfyUI.
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V2 Features:
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- Returns all strings sorted by length (longest first)
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- Offset parameter to select which string to return (1 = longest, 2 = second longest, etc.)
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- Improved system_prompt filtering with prefix matching
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- Support for widgets_values segmented prompts
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Author: Drift Johnson
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Repository: https://github.com/MushroomFleet/ComfyUI_PromptExtractor_nodes
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"""
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import json
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import os
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from PIL import Image
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import numpy as np
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import torch
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import folder_paths
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class DJZ_PromptExtractorV2:
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"""
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A ComfyUI node that extracts text prompts from PNG metadata with offset selection.
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Returns strings sorted by length (longest first). Use the offset parameter to
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select which string to return:
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- offset=1: longest string (default)
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- offset=2: second longest string
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- offset=N: Nth longest string
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This approach solves issues with mislabeled or duplicated metadata by allowing
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users to iterate through all available strings.
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Uses Load Image style file selector for full metadata access.
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"""
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def __init__(self):
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pass
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@classmethod
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def INPUT_TYPES(cls):
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input_dir = folder_paths.get_input_directory()
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files = [f for f in os.listdir(input_dir) if os.path.isfile(os.path.join(input_dir, f))]
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# Filter for image files (primarily PNG but allow others)
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image_extensions = ('.png', '.jpg', '.jpeg', '.webp', '.gif', '.bmp')
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files = sorted([f for f in files if f.lower().endswith(image_extensions)])
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return {
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"required": {
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"image": (files, {"image_upload": True}),
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},
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"optional": {
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"offset": ("INT", {
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"default": 1,
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"min": 1,
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"max": 100,
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"step": 1,
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"display": "number",
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"tooltip": "Which string to return: 1=longest, 2=second longest, etc."
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}),
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"ignore_system_prompt": ("BOOLEAN", {
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"default": True,
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"tooltip": "Filter out system_prompt content from results"
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}),
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}
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}
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RETURN_TYPES = ("STRING", "STRING", "INT", "STRING", "IMAGE",)
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RETURN_NAMES = ("selected_string", "all_strings_json", "total_count", "debug_info", "image",)
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FUNCTION = "extract_prompt"
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CATEGORY = "DJZ-Nodes"
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OUTPUT_NODE = False
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@classmethod
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def IS_CHANGED(cls, image, offset=1, ignore_system_prompt=True):
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image_path = folder_paths.get_annotated_filepath(image)
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return os.path.getmtime(image_path)
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@classmethod
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def VALIDATE_INPUTS(cls, image, offset=1, ignore_system_prompt=True):
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if not folder_paths.exists_annotated_filepath(image):
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return f"Invalid image file: {image}"
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return True
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@staticmethod
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def find_all_strings(obj, strings=None):
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"""Recursively find all strings in a JSON object/array."""
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if strings is None:
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strings = []
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if isinstance(obj, str):
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strings.append(obj)
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elif isinstance(obj, list):
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for item in obj:
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DJZ_PromptExtractorV2.find_all_strings(item, strings)
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elif isinstance(obj, dict):
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for value in obj.values():
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DJZ_PromptExtractorV2.find_all_strings(value, strings)
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return strings
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@staticmethod
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def collect_system_prompts(obj, prefixes, full_strings, current_key=""):
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"""Recursively collect system_prompt values from nested objects."""
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if isinstance(obj, str):
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# If we're inside a key that looks like system_prompt, collect it
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if 'system_prompt' in current_key.lower() or 'systemprompt' in current_key.lower():
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if len(obj) >= 20:
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prefixes.append(obj[:20])
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full_strings.add(obj)
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elif isinstance(obj, list):
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for item in obj:
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DJZ_PromptExtractorV2.collect_system_prompts(item, prefixes, full_strings, current_key)
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elif isinstance(obj, dict):
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for key, value in obj.items():
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DJZ_PromptExtractorV2.collect_system_prompts(value, prefixes, full_strings, key)
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@staticmethod
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def find_widgets_values(obj, results=None):
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"""Extract and join widgets_values arrays (segmented prompts)."""
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if results is None:
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results = []
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if isinstance(obj, list):
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for item in obj:
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DJZ_PromptExtractorV2.find_widgets_values(item, results)
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elif isinstance(obj, dict):
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# Check if this object has widgets_values
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if 'widgets_values' in obj and isinstance(obj['widgets_values'], list):
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# Filter to only string values and join them
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string_values = [
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v.strip() for v in obj['widgets_values']
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if isinstance(v, str) and v.strip() and v.strip() != ','
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]
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if len(string_values) > 1:
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# Join the values - this is likely a segmented prompt
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joined = ' '.join(string_values)
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joined = ' '.join(joined.split()) # Normalize whitespace
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if joined:
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results.append(joined)
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# Recurse into object values
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for value in obj.values():
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DJZ_PromptExtractorV2.find_widgets_values(value, results)
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return results
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def extract_all_sorted_strings_from_info(self, img_info, ignore_system_prompt=True):
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"""
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Extract all unique strings from PNG metadata info dict, sorted by length (longest first).
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Args:
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img_info: The img.info dict from PIL Image
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Returns:
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tuple: (sorted_strings_list, metadata_dict, debug_info)
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"""
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# Get metadata from PNG info
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metadata = {}
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system_prompt_prefixes = []
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system_prompt_full_strings = set()
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all_strings_set = set()
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# First pass: collect system_prompt content if filtering
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if ignore_system_prompt:
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for key, value in img_info.items():
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key_lower = key.lower()
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# Direct system_prompt key
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if key_lower == 'system_prompt' or key_lower == 'systemprompt':
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if isinstance(value, str):
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try:
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parsed = json.loads(value)
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for s in self.find_all_strings(parsed):
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if len(s) >= 20:
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system_prompt_prefixes.append(s[:20])
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system_prompt_full_strings.add(s)
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except json.JSONDecodeError:
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if len(value) >= 20:
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system_prompt_prefixes.append(value[:20])
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system_prompt_full_strings.add(value)
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else:
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# Scan inside other chunks for embedded system_prompt keys
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if isinstance(value, str):
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try:
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parsed = json.loads(value)
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self.collect_system_prompts(parsed, system_prompt_prefixes, system_prompt_full_strings)
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except json.JSONDecodeError:
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pass
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def matches_system_prompt(s):
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"""Check if a string matches any collected system_prompt."""
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if not ignore_system_prompt:
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return False
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if s in system_prompt_full_strings:
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return True
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if len(s) >= 20 and system_prompt_prefixes:
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s_prefix = s[:20]
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if any(prefix == s_prefix for prefix in system_prompt_prefixes):
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return True
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return False
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# Second pass: collect all strings
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for key, value in img_info.items():
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key_lower = key.lower()
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# Skip system_prompt key entirely if filtering
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if ignore_system_prompt and (key_lower == 'system_prompt' or key_lower == 'systemprompt'):
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if isinstance(value, str):
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try:
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metadata[key] = json.loads(value)
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except json.JSONDecodeError:
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metadata[key] = value
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continue
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if isinstance(value, str):
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try:
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parsed = json.loads(value)
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metadata[key] = parsed
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# Find widgets_values joined strings
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for s in self.find_widgets_values(parsed):
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if s.strip() and not matches_system_prompt(s):
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all_strings_set.add(s)
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# Find regular strings
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for s in self.find_all_strings(parsed):
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if s.strip() and not matches_system_prompt(s):
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all_strings_set.add(s)
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except json.JSONDecodeError:
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# Not JSON, add raw string
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metadata[key] = value
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if value.strip() and not matches_system_prompt(value):
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all_strings_set.add(value)
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elif isinstance(value, bytes):
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try:
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decoded = value.decode('utf-8')
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parsed = json.loads(decoded)
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metadata[key] = parsed
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for s in self.find_widgets_values(parsed):
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if s.strip() and not matches_system_prompt(s):
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all_strings_set.add(s)
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for s in self.find_all_strings(parsed):
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if s.strip() and not matches_system_prompt(s):
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all_strings_set.add(s)
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except:
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pass
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# Convert to list and sort by length (longest first)
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sorted_strings = sorted(
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[s for s in all_strings_set if s],
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key=len,
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reverse=True
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)
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debug_info = f"Found {len(sorted_strings)} unique strings"
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if ignore_system_prompt and system_prompt_full_strings:
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debug_info += f", filtered {len(system_prompt_full_strings)} system_prompt values"
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return sorted_strings, metadata, debug_info
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def extract_prompt(self, image, offset=1, ignore_system_prompt=True):
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"""
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Main extraction function.
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Args:
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image: Filename of the image in the input directory
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offset: Which string to return (1=longest, 2=second longest, etc.)
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ignore_system_prompt: Whether to filter out system_prompt content
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Returns:
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tuple: (selected_string, all_strings_json, total_count, debug_info, image_tensor)
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"""
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# Get full path from the selected filename
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image_path = folder_paths.get_annotated_filepath(image)
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# Open image and get metadata
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try:
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img = Image.open(image_path)
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img_info = img.info
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except Exception as e:
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# Return empty tensor on error
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empty_tensor = torch.zeros((1, 64, 64, 3), dtype=torch.float32)
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return (
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f"[Error opening image: {str(e)}]",
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"[]",
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0,
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f"Error: {str(e)}",
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empty_tensor
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)
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# Load the image as tensor for output
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img_rgb = img.convert("RGB")
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image_tensor = torch.from_numpy(np.array(img_rgb).astype(np.float32) / 255.0).unsqueeze(0)
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# Extract strings from metadata
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sorted_strings, metadata, debug_info = self.extract_all_sorted_strings_from_info(
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img_info,
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ignore_system_prompt
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)
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if not sorted_strings:
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return (
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"[No strings found]",
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"[]",
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0,
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debug_info or "No text content found in metadata",
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image_tensor
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)
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# Adjust offset to 0-based index
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index = offset - 1
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# Clamp index to valid range
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if index < 0:
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index = 0
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elif index >= len(sorted_strings):
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index = len(sorted_strings) - 1
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debug_info += f" | Offset {offset} exceeds count, using last string (index {index + 1})"
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selected_string = sorted_strings[index]
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# Create JSON array of all strings with their lengths
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strings_with_info = [
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{"index": i + 1, "length": len(s), "preview": s[:100] + "..." if len(s) > 100 else s}
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for i, s in enumerate(sorted_strings)
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]
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all_strings_json = json.dumps(strings_with_info, indent=2)
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return (
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selected_string,
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all_strings_json,
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len(sorted_strings),
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debug_info,
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image_tensor
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)
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class DJZ_PromptExtractorV2_Batch:
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"""
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Batch version of V2 extractor that processes multiple images from a directory.
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"""
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def __init__(self):
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pass
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"directory_path": ("STRING", {
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"default": "",
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"multiline": False,
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"placeholder": "Path to directory containing PNG files"
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}),
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},
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"optional": {
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"offset": ("INT", {
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"default": 1,
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"min": 1,
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"max": 100,
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"step": 1,
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"display": "number",
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"tooltip": "Which string to extract from each image: 1=longest, 2=second longest, etc."
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}),
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"max_images": ("INT", {
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"default": 10,
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"min": 1,
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"max": 100,
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"step": 1
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}),
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"ignore_system_prompt": ("BOOLEAN", {
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"default": True,
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}),
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}
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}
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RETURN_TYPES = ("STRING", "STRING", "INT",)
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RETURN_NAMES = ("prompts_list", "filenames_list", "processed_count",)
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FUNCTION = "extract_batch"
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CATEGORY = "DJZ-Nodes"
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OUTPUT_NODE = False
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def extract_from_path(self, filepath, offset=1, ignore_system_prompt=True):
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"""Extract prompt from a file path (for batch processing)."""
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try:
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img = Image.open(filepath)
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img_info = img.info
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except Exception as e:
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return f"[Error: {str(e)}]"
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extractor = DJZ_PromptExtractorV2()
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sorted_strings, _, _ = extractor.extract_all_sorted_strings_from_info(
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img_info,
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ignore_system_prompt
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)
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if not sorted_strings:
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return "[No strings found]"
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# Adjust offset to 0-based index
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index = offset - 1
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if index < 0:
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index = 0
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elif index >= len(sorted_strings):
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index = len(sorted_strings) - 1
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return sorted_strings[index]
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def extract_batch(self, directory_path, offset=1, max_images=10, ignore_system_prompt=True):
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"""Extract prompts from all PNG files in a directory."""
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if not os.path.isdir(directory_path):
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return (f"[Error: Directory not found: {directory_path}]", "", 0)
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# Find all PNG files
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png_files = [f for f in os.listdir(directory_path) if f.lower().endswith('.png')]
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png_files = png_files[:max_images]
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if not png_files:
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return ("[No PNG files found in directory]", "", 0)
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prompts = []
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filenames = []
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for filename in png_files:
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filepath = os.path.join(directory_path, filename)
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selected_string = self.extract_from_path(filepath, offset, ignore_system_prompt)
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if selected_string and not selected_string.startswith("["):
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prompts.append(selected_string)
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filenames.append(filename)
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# Join with separators
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prompts_output = "\n---\n".join(prompts) if prompts else "[No prompts extracted]"
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filenames_output = "\n".join(filenames) if filenames else ""
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return (prompts_output, filenames_output, len(prompts))
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||||
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||||
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||||
class DJZ_PromptExtractorV2_StringNavigator:
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"""
|
||||
Helper node that takes the all_strings_json output and allows navigation
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through the strings with offset selection.
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||||
"""
|
||||
|
||||
def __init__(self):
|
||||
pass
|
||||
|
||||
@classmethod
|
||||
def INPUT_TYPES(cls):
|
||||
return {
|
||||
"required": {
|
||||
"all_strings_json": ("STRING", {
|
||||
"multiline": True,
|
||||
"placeholder": "Connect to all_strings_json output from PromptExtractorV2"
|
||||
}),
|
||||
"offset": ("INT", {
|
||||
"default": 1,
|
||||
"min": 1,
|
||||
"max": 100,
|
||||
"step": 1,
|
||||
"display": "number",
|
||||
}),
|
||||
},
|
||||
}
|
||||
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||||
RETURN_TYPES = ("STRING", "INT", "STRING",)
|
||||
RETURN_NAMES = ("selected_string", "string_length", "preview",)
|
||||
FUNCTION = "navigate"
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||||
CATEGORY = "DJZ-Nodes"
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||||
OUTPUT_NODE = False
|
||||
|
||||
def navigate(self, all_strings_json, offset=1):
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||||
"""Navigate through the strings list using offset."""
|
||||
try:
|
||||
strings_info = json.loads(all_strings_json)
|
||||
except json.JSONDecodeError:
|
||||
return ("[Invalid JSON input]", 0, "")
|
||||
|
||||
if not strings_info:
|
||||
return ("[No strings available]", 0, "")
|
||||
|
||||
# Adjust offset to 0-based index
|
||||
index = offset - 1
|
||||
|
||||
if index < 0:
|
||||
index = 0
|
||||
elif index >= len(strings_info):
|
||||
index = len(strings_info) - 1
|
||||
|
||||
item = strings_info[index]
|
||||
|
||||
# The preview contains the actual string (possibly truncated)
|
||||
# We need to return the full string, which is in preview
|
||||
# For full string access, user should use the main extractor
|
||||
preview = item.get("preview", "")
|
||||
length = item.get("length", 0)
|
||||
|
||||
return (preview, length, f"String {offset} of {len(strings_info)}: {length} chars")
|
||||
|
||||
|
||||
# Node registration for ComfyUI
|
||||
NODE_CLASS_MAPPINGS = {
|
||||
"DJZ_PromptExtractorV2": DJZ_PromptExtractorV2,
|
||||
"DJZ_PromptExtractorV2_Batch": DJZ_PromptExtractorV2_Batch,
|
||||
"DJZ_PromptExtractorV2_StringNavigator": DJZ_PromptExtractorV2_StringNavigator,
|
||||
}
|
||||
|
||||
NODE_DISPLAY_NAME_MAPPINGS = {
|
||||
"DJZ_PromptExtractorV2": "DJZ Prompt Extractor V2",
|
||||
"DJZ_PromptExtractorV2_Batch": "DJZ Prompt Extractor V2 (Batch)",
|
||||
"DJZ_PromptExtractorV2_StringNavigator": "DJZ String Navigator V2",
|
||||
}
|
||||
@@ -1,201 +1,21 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
MIT License
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
Copyright (c) 2025 Drift Johnson
|
||||
|
||||
1. Definitions.
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
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|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
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|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
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|
||||
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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|
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|
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|
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|
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
END OF TERMS AND CONDITIONS
|
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|
||||
APPENDIX: How to apply the Apache License to your work.
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||||
|
||||
To apply the Apache License to your work, attach the following
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You may obtain a copy of the License at
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SOFTWARE.
|
||||
|
||||
+24
-2
@@ -10,10 +10,32 @@ from .DJZ_PromptExtractor import (
|
||||
DJZ_PromptExtractor,
|
||||
DJZ_PromptExtractorFromPath,
|
||||
DJZ_PromptExtractorBatch,
|
||||
NODE_CLASS_MAPPINGS,
|
||||
NODE_DISPLAY_NAME_MAPPINGS,
|
||||
)
|
||||
|
||||
from .DJZ_PromptExtractorV2 import (
|
||||
DJZ_PromptExtractorV2,
|
||||
DJZ_PromptExtractorV2_Batch,
|
||||
DJZ_PromptExtractorV2_StringNavigator,
|
||||
)
|
||||
|
||||
NODE_CLASS_MAPPINGS = {
|
||||
"DJZ_PromptExtractor": DJZ_PromptExtractor,
|
||||
"DJZ_PromptExtractorFromPath": DJZ_PromptExtractorFromPath,
|
||||
"DJZ_PromptExtractorBatch": DJZ_PromptExtractorBatch,
|
||||
"DJZ_PromptExtractorV2": DJZ_PromptExtractorV2,
|
||||
"DJZ_PromptExtractorV2_Batch": DJZ_PromptExtractorV2_Batch,
|
||||
"DJZ_PromptExtractorV2_StringNavigator": DJZ_PromptExtractorV2_StringNavigator,
|
||||
}
|
||||
|
||||
NODE_DISPLAY_NAME_MAPPINGS = {
|
||||
"DJZ_PromptExtractor": "DJZ Prompt Extractor",
|
||||
"DJZ_PromptExtractorFromPath": "DJZ Prompt Extractor (Path)",
|
||||
"DJZ_PromptExtractorBatch": "DJZ Prompt Extractor (Batch)",
|
||||
"DJZ_PromptExtractorV2": "DJZ Prompt Extractor V2",
|
||||
"DJZ_PromptExtractorV2_Batch": "DJZ Prompt Extractor V2 (Batch)",
|
||||
"DJZ_PromptExtractorV2_StringNavigator": "DJZ String Navigator V2",
|
||||
}
|
||||
|
||||
__all__ = ["NODE_CLASS_MAPPINGS", "NODE_DISPLAY_NAME_MAPPINGS"]
|
||||
|
||||
WEB_DIRECTORY = "./web"
|
||||
|
||||
Reference in New Issue
Block a user