Intel XENIX 286 Programmers Guide (86) - Tenox.tc

Programming Commands XENIX Programming
delta (continued)
-m[mrlist]
If the SCCS file has the v flag set (see the entry for admin later in this
appendix), then a Modification Request (MR) number must be supplied as the
reason for creating the new delta.
If -m is not used and the standard input is a terminal, the prompt MRs? is issued
on the standard output before the standard input is read. If the standard input is
not a terminal, no prompt is issued. The MRs? prompt always precedes the
comments? prompt. (See the description of -y, which follows.)
MRs in a list are separated by blanks and/or tab characters. An unescaped
newline character terminates the MR list.
Note that if the v flag has a value (see admin), it is taken to be the name of a
program (or shell procedure) that will validate the correctness of the MR
num bers. If a nonzero exit status is returned from an MR number validation
program, delta terminates. (It assumes that the MR numbers were not all valid.)
-y[comment]
Arbitrary text used to describe the reason for making the delta. A null string is
considered a valid comment.
If -y is not specified and the standard input is a terminal, the prompt comments?
is issued on the standard output before the standard input is read. If the
standard input is not a terminal, no prompt is issued. An unescaped newline
character terminates the comment text.
-p Causes delta to print (on the standard output) the SCCS file differences before
and after the delta is applied. Differences are displayed in a diff format.
Files
All files of the form ?-file are explained in Chapter 5, "SCCS: Source Code Control
System." The naming conventions for these files are also described.
g-file
p-file
q-file
x-file
8-6 0
Existed before the execution of delta; removed after completion of delta.
Existed before the execution of delta; may exist after completion of delta.
Created during the execution of delta; removed after completion of delta.
Created during the execution of delta; renamed to SCCS file after
completion of delta.