Go forward to ndbm maps.
Go backward to Map Types.
Go up to Map Types.
File maps
---------
When Amd searches a file for a map entry it does a simple scan of
the file and supports both comments and continuation lines.
Continuation lines are indicated by a backslash character (`\') as
the last character of a line in the file. The backslash, newline
character *and any leading white space on the following line* are
discarded. A maximum line length of 2047 characters is enforced after
continuation lines are read but before comments are stripped. Each
line must end with a newline character; that is newlines are
terminators, not separators. The following examples illustrate this:
key valA valB; \
valC
specifies *three* locations, and is identical to
key valA valB; valC
However,
key valA valB;\
valC
specifies only *two* locations, and is identical to
key valA valB;valC
After a complete line has been read from the file, including
continuations, Amd determines whether there is a comment on the line.
A comment begins with a hash ("`#'") character and continues to the end
of the line. There is no way to escape or change the comment lead-in
character.
Note that continuation lines and comment support "only" apply to
file maps, or ndbm maps built with the `mk-amd-map' program.
When caching is enabled, file maps have a default cache mode of
`all' (see Automount Filesystem.).
|
