Module dict 

FIX data dictionaries: what a tag is called, what type its values are, and what its enumerated codes mean.

The built-in dictionary is FIX 4.2, 4.4 and 5.0 SP2 merged, generated from QuickFIX’s data dictionaries by scripts/code/fix_dictionary.py. Custom ones are found on the format spec search path (~/.config/datui/formats/, $DATUI_FORMATS_PATH, [formats] path) or named by --dict, in two forms: a QuickFIX XML data dictionary, read as it is, or a short TOML file of kind = "fix". A custom dictionary may apply only to the messages of one counterparty (match on SenderCompID, TargetCompID or BeginString).

Structs

Dictionary

A FIX dictionary.

Layers

The dictionaries a FIX log is read with, in order: the built-in one, then the custom ones on the search path, then --dict. Later ones win.

Match

Which messages a dictionary applies to; every field given must match.

Resolved

What the dictionaries that apply to a message say of one tag.

TagDef

What one dictionary says of one tag.

Enums

FixType

What a tag’s values are, as far as datui types them.

Constants

MAX_FILE

The largest dictionary file read.

MAX_NAME

The longest tag name or enum name kept.

MAX_TAG

The highest tag number: FIX tags are positive and fit in a signed 32-bit integer.

Functions

built_in

The built-in dictionary, read once.

camel

SELL_SHORT as SellShort, as the built-in dictionary writes QuickFIX’s names.

is_fix_toml

Whether a TOML file is a FIX dictionary (kind = "fix") rather than a format spec.

parse_date

A YYYYMMDD date as days since the epoch.

parse_timestamp

A UTCTIMESTAMP as nanoseconds since the epoch: 20260102-03:04:05, with up to nine digits of fraction.