Per-file trailer label lookup. More...

#include <OpenMS/FORMAT/HANDLERS/ThermoRawFileMetadata.h>

Public Types
using	Key = std::size_t
	Key of a registered label for find() / value().

Public Member Functions
Key	add (const std::string &label)
	Register `label` (exact match, including the trailing colon) and return its key.

const std::string *	find (const ThermoScan &scan, Key key)
	Value of the registered label in `scan`, or nullptr if the scan has no such entry.

const std::string &	value (const ThermoScan &scan, Key key)
	Value of the registered label in `scan`, or "" if absent.

Private Attributes
std::vector< std::string >	labels_
	registered labels by key

std::vector< std::size_t >	positions_
	last position of each label (npos_ if not seen yet)

Static Private Attributes
static constexpr std::size_t	npos_ = static_cast<std::size_t>(-1)

Detailed Description

Per-file trailer label lookup.

Thermo stores the trailer-extra layout once per controller, so every scan of a file lists the same labels in the same order. Labels are registered once (add()) and their position is learned from the first scan that has them; later scans only verify the label at that position (one string comparison) instead of searching all entries. A scan with a different layout falls back to a linear search and updates the cached position, so arbitrary trailers are still handled correctly.

Member Typedef Documentation

◆ Key

using Key = std::size_t

Key of a registered label for find() / value().

Member Function Documentation

◆ add()

Key add ( const std::string & label )

Register label (exact match, including the trailing colon) and return its key.

◆ find()

const std::string * find	(	const ThermoScan &	scan,
		Key	key
	)

Value of the registered label in scan, or nullptr if the scan has no such entry.

◆ value()

const std::string & value	(	const ThermoScan &	scan,
		Key	key
	)

Value of the registered label in scan, or "" if absent.

Member Data Documentation

◆ labels_

std::vector<std::string> labels_

private

registered labels by key

◆ npos_

constexpr std::size_t npos_ = static_cast<std::size_t>(-1)

staticconstexprprivate

◆ positions_

std::vector<std::size_t> positions_