Function

Summary

Creates a new external format spec from two other external format specs.

Package

system

Signature

merge-ef-specs ef-spec1 ef-spec2 => ef-spec

Arguments

ef-spec1

An external format spec.

ef-spec2

An external format spec.

Values

ef-spec

The resultant external format spec created from information in ef-spec1 and ef-spec2.

Description

The function merge-ef-specs returns an external format spec constructed by adding information not supplied in ef-spec1 from ef-spec2.

Each external format spec argument is either a symbol or a list.

If ef-spec1 and ef-spec2 have the same value for their name component (whether they are lists or symbols), return ef-spec1 combined with any parameters from ef-spec2 that are not specified in ef-spec1.

Otherwise, if ef-spec1 is :default or a list beginning with :default, return ef-spec2 with parameters modified to be a union of the parameters from ef-spec1 and ef-spec2, with those from ef-spec1 taking priority.

Otherwise, return ef-spec1 with any :eol-style parameter from ef-spec2 if ef-spec1 does not specify :eol-style.