This topic covers the implementation details of TmcDayHeader.

 

Scope: TypeDefinitions.pas; record. Prepared from the curated implementation supplied for this review on 2 October 2026.

 

Uses a byte buffer to read the header value and related members. The exact fields are recorded below. Do not assume a missing node triggers initialization: consult the reader’s explicit nil handling and enclosing TMiniCalOptions constructor.

 

Notation and shared helper rules: Reading this reference.

 

XML identity and composition

 

Literal rec_type values emitted within these routines: TmcDayHeader. Nested values may belong to child wrappers rather than this owner itself; the attribute entries below give their exact locations.

 

Exact XML fields and attributes

 

The paths below start at this record or property node. A slash identifies a child element; @ identifies an attribute. Curly braces mark a variable index or expression, not literal XML text. Initial values describe initialization; they do not establish what an omitted individual element does. The Implementation toggle below contains the supplied routines for exact branch order and conversions.

 

Length

 

XML representation: The text of the Length element.

 

Reading: Reads the element into Length when the record node exists.

 

Writing: Stores the numeric value of Length whenever the writer reaches this field.

 

CapStyle

 

XML representation: The text of the CapStyle element.

 

Reading: Reads the element into CapStyle when the record node exists.

 

Writing: Stores the numeric value of CapStyle (see the value table below) whenever the writer reaches this field.

 

@rec_type

 

XML representation: The rec_type attribute.

 

Writing: Stores the literal text “TmcDayHeader” whenever the writer reaches this field.

 

Initialization and reset values

 

This type has no separate initializer in the supplied code. Its starting values come from its enclosing object, inherited initialization, or existing state. Relevant enclosing initializers are identified below.

 

Enclosing initialization contexts

 

The following enclosing routines establish or override this record’s starting values. Follow the owner link for the complete initializer. Different enclosing objects can supply different defaults.

 

TMiniCalOptions.Create is documented in TMiniCalOptions.

 

Value namespaces used by this implementation

 

These are declared Pascal ordinal values. Use the ordinal only where the field serializer actually writes ord(...), an integer cast or an equivalent value. Set-marker strings and local option lists have their own representation; sentinel members in an enum are not automatically legal XML choices.

 

qppCapStyle

 

 

Text-style marker encoding

 

An empty style set is the empty string. A nonempty set has a leading comma, a comma after every marker and a trailing comma: for example ,B,I,FOSI,. The parser looks for complete case-sensitive marker substrings. HIDE replaces the ordinary style selection; RSET and IGNR are still processed. tsoAppend is declared but is not encoded by these two helpers.

 

 

Storage declarations relevant to interpretation

 

These are in-memory member and property types, not a list of mandatory XML children. They retain array bounds, fixed buffers and selector types. The field reference above defines what is actually serialized.

 

 

Implementation details

 

The Implementation toggle contains only TmcDayHeader methods. Initializers and helpers belonging to other types are identified separately below. Shared XML-helper limitations are explained in Reading this reference.

 

Declaration reproduces this record’s complete declaration from the supplied source, including its fields, properties and method signatures.

 

Declaration

 

Implementation