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

SCCS: Source Code Control System XENIX Programming
The data specification is a string of data keywords and text. A data keyword is an
uppercase letter, enclosed in colons (:). It represents a value contained in the given
s-file. For example, the keyword :1: represents the SID of a given version; :F:
represents the file name of the given s-file; and :C: represents the comment line
associated with a given version. Data keywords are replaced by these values when the
information is printed.
For example, the command
prs -d " version: :1: fi lename: :F: " s.demo.c
may produce the line
version: 2.1 fi lename: s.demo.c
A complete list of the data keywords is given in the entry prs in Appendix B,
"Programming Commands."
Printing a Specific Version
You can print information about a specific version in a given s-file by using the -r option
of the prs command. The command has the form
prs -rS/0 s. filename
where -rSID gives the SID of the desired version, and s.filename is the name of the s-file
containing the version. For example, the command
prs -r2. 1 s.demo.c
prints information about version 2.1 in the s-file s.demo.c.
If the -r option is not specified, the command prints information about the most
recently created delta.
Printing later and Earlier Versions
You can print information about a group of versions by using the -1 and -e options of the
prs command. The -1 option causes the command to print information about all versions
immediately succeeding the given version. The -e option causes the command to print
information about all versions immediately preceding the given version. For example,
the command
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prs -r1 .4 -e s.demo.c