find-encoding-option

find-encoding-option Function

Summary

Examines a buffer for an encoding option.

Package

system

Signature

find-encoding-option pathname ef-spec buffer length => result

Arguments

`pathname`⇩	Pathname identifying location of `buffer`.
`ef-spec`⇩	An external format spec.
`buffer`⇩	A buffer whose contents are examined.
`length`⇩	Length (an integer) up to which `buffer` should be examined.

Values

result⇩

An external format spec.

Description

The function find-encoding-option looks in buffer (bounded by length) for file options (EMACS-style -*- lines) containing an option called encoding or external-format, with value value.

If encoding or external-format is found, it reads value as a Lisp expression in the keyword package. If coding is found, it attempts to translate value from a GNU Emacs coding system name to a LispWorks external-format name.

It then merges ef-spec with the external format spec derived from value, and returns the result as result. Thus it does not override a supplied ef-spec.

pathname is ignored.