MNeMoNiCuZ-ComfyUI-mnemic-nodes/web/docs/MNeMiC_StringCleaning.md

🧹 String Cleaning

Cleans text with operations applied from top to bottom. Each step shows only its own fields.

Inputs

• input_string: Text to clean.
• Operation: First step; defaults to Collapse Spaces.
• Add Operation: Append another step and choose its operation.
• Remove Last Operation: Remove the last added step.

Every operation and field has an example in its tooltip.

Operation	Settings	Input	Output
Whitespace
Collapse Spaces	None	"red fox"	"red fox"
Trim Whitespace	None	" red fox "	"red fox"
Trim Each Line	None	" red \n fox "	"red\nfox"
Trim Line Starts	None	" red fox"	"red fox"
Trim Line Ends	None	"red fox "	"red fox"
Normalize Whitespace	None	" red\t fox\n "	"red fox"
Remove All Spaces	None	"red fox"	"redfox"
Lines
Normalize Line Breaks	None	"red\r\nfox\rcat"	"red\nfox\ncat"
Remove Empty Lines	None	"red\n\nfox"	"red\nfox"
Remove Duplicate Lines	None	"red\nfox\nred"	"red\nfox"
Remove Line Breaks	None	"red\nfox"	"redfox"
Line Breaks to Sentences	None	"Hello\nWorld"	"Hello. World"
Punctuation
Remove Leading Punctuation	None	"...Hello"	"Hello"
Remove Trailing Punctuation	None	"Hello!!!"	"Hello"
Text removal
Remove Line Prefix	Text: "Chapter "	"Chapter 1: Hello"	"1: Hello"
Remove Line Suffix	Text: " END"	"Hello END"	"Hello"
Remove Text	Text: cat	"cat and cat"	" and "
Remove Before Marker	Markers: <START>	"Header<START>Hello"	"Hello"
Remove After Marker	Markers: <END>	"Hello<END>Footer"	"Hello"
Remove From Start Until	Delimiter: /	"folder/sub/file.txt"	"sub/file.txt"
Remove From End Until	Delimiter: .	"photo.v2.png"	"photo.v2"
Remove Bracketed Content	Character Pairs: ()	"Hello (draft)world"	"Hello world"
Remove Between Tags	Opening: <think>, Closing: </think>	"<think>draft</think>Hello"	"Hello"
Replacement and case
Find and Replace	Find: cat, Replace With: dog	"a cat"	"a dog"
Case	Format: camelCase	"red fox"	"redFox"

Quotes show spaces; do not enter the quotes. \t is a tab, \r is CR, and \n is LF (a line break).

Case formats

Format	Input	Output
lowercase	Red FOX	red fox
UPPERCASE	Red fox	RED FOX
Title Case	the red fox	The Red Fox
Sentence case	HELLO. GOODBYE!	Hello. Goodbye!
camelCase	red fox	redFox
PascalCase	red fox	RedFox
snake_case	RedFox	red_fox
CONSTANT_CASE	red fox	RED_FOX
kebab-case	red fox	red-fox
Train-Case	red fox	Red-Fox
dot.case	red fox	red.fox
tOGGLE cASE	Red FOX	rED fox

Joined formats split words at whitespace, punctuation and case boundaries: HTTPServer becomes http_server with snake_case. Other case formats keep punctuation and spacing. Sentence case treats ., !, ? and line breaks as sentence boundaries.

Outputs

• cleaned_string: Text after all operations.

Examples

1. Remove Line Prefix, Text "Chapter ": "Chapter red fox" becomes " red fox".
2. Trim Line Starts: becomes "red fox".
3. Collapse Spaces: becomes "red fox".

Notes

• Text fields take one entry per line, applied in order. Matching is case-sensitive.
• Prefix/suffix removal repeats at the selected end of each line. Spaces are significant except around marker entries.
• Remove All Spaces removes ordinary spaces, keeping tabs and line breaks.
• Normalize Whitespace also replaces tabs and line breaks with spaces. Remove Duplicate Lines keeps the first exact match; trim lines first to ignore surrounding whitespace.
• Remove From Start/End Until uses the first/last delimiter in the whole string. Empty or missing delimiters leave text unchanged. Keep Delimiter retains it: photo.v2.png becomes photo.v2. when trimming from the end with ..
• Character Pairs needs two characters per nonempty line. Opening/Closing Tags need equal nonempty line counts.
• Brackets and tags match across lines to the nearest closing delimiter; nesting is not supported.
• Find and Replace needs equal line counts. Empty Find lines are skipped; empty replacements delete matches.