18 The SYSTEM Package
detect-eol-style
Function
- Summary
- Detects the end of line style of a file.
- Package
system- Signature
detect-eol-style pathname ef-spec buffer length => new-ef-spec- 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
-
- new-ef-spec
A new external format spec created by merging ef-spec with the encoding that was found.
- Description
- When the encoding in ef-spec has foreign type
(unsigned-byte 8), search buffer up to length for the first occurrence of the byte(10). If found, and it is preceded in buffer by(13), merge ef-spec with
(:default :eol-style :crlf)
- If found and is not preceded by
(13), merge ef-spec with
(:default :eol-style :lf)
- Thus a complete external format spec is constructed. Otherwise, return ef-spec.
- When the encoding in ef-spec has foreign type
(unsigned-byte 16), search buffer up to length for the first occurrence of the byte sequence(13 0 10). If found, merge ef-spec with
(:default :eol-style :crlf)
- If
(13 0 10)is not found, search buffer up to length for(10 0)or(0 10). If found, merge ef-spec with
(:default :eol-style :lf)
- Thus a complete external format spec is constructed. Otherwise, return ef-spec.
- See also