Internal Test: Uses integer tags to programmatically categorize matches and process them differently in a loop.
Internal Test: Verifies advanced formatting of the trace output using `ListFormat` to create a custom, detailed step-by-step log.
Internal Test: Verifies behavior for patterns at the end of the string and patterns that are not found.
Internal Test: Verifies correct name retrieval for symbolic operators, internal tokens, and empty items.
Internal Test: Verifies correct precedence with overlapping patterns and confirms that re-running Find produces the same results.
Internal Test: Verifies correct results with multiple variables and a function call within a tight loop using a pre-parsed expression.
Internal Test: Verifies instance isolation by ensuring Tokens collections from different uCalc instances correctly resolve to their respective parents.
Internal Test: Verifies precedence and traversal of rules with different patterns but the same starting anchor ('Testing').
Internal Test: Verifies rule precedence and tag retrieval by traversing the overload chain with NextOverload.
Internal Test: Verifies that `{@@Eval}` can correctly parse and evaluate an expression that is itself captured from the text.
Internal Test: Verifies that a built-in function using `ByHandle` arguments can correctly modify the state of variables passed to it.
Internal Test: Verifies that a rule defined in a nested LocalTransformer correctly resolves its parent to the root uCalc instance.
Internal Test: Verifies that any rule not on the root transformer is considered a child, regardless of nesting depth.
Internal Test: Verifies that descriptions are copied when token sets are imported, but remain independent afterward.
Internal Test: Verifies that multi-pass transformations work correctly when `RewindOnChange` is enabled for the entire rule set.
Internal Test: Verifies that only the division by zero flag is affected, while other floating-point exceptions like overflow remain unchanged by default.
Internal Test: Verifies that releasing a rule correctly 'un-shadows' a previously defined rule with the same pattern.
Internal Test: Verifies that requesting an out-of-bounds index for a token type returns an empty item.
Internal Test: Verifies that the `subMatchGroup` parameter correctly extracts a capture group's content and that `ItemIs::QuotedText` works as expected.
Internal Test: Verifies that the correct parent is returned when using a nested LocalTransformer, confirming hierarchical integrity.
Internal Test: Verifies that the correct pattern string is returned for rules created with both FromTo() and Pattern(), including complex syntax.
Internal Test: Verifies that the count updates correctly after Add() and Clear() operations, demonstrating the dynamic nature of the collection.
Internal Test: Verifies that the description property is correctly copied when a Transformer is cloned.
Internal Test: Verifies that the error state is correctly cleared after a subsequent successful operation.
Internal Test: Verifies that the parent uCalc instance can be retrieved even from an empty Matches collection.
Internal Test: Verifies the 'live view' behavior by modifying an extracted block and showing the change reflected in the parent string.
Internal Test: Verifies the filtering of nested matches using RootLevelOnly and InnermostOnly options.
Internal Test: Verifies the LIFO precedence order and the return value for a token not present in the collection.
ItemOf selection between infix version of - (minus) operator and unary prefix version with Properties
Iterates through a chain of rules with the same anchor to inspect their different replacement patterns.
Iterates through matches, retrieves the rule for each, and uses ParentTransformer to get the transformer's description for context.
