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28 .\" @(#)mkstr.1 8.1 (Berkeley) 6/6/93
36 .Nd create an error message file by massaging C source
45 utility creates a file containing error messages extracted from C source,
46 and restructures the same C source, to utilize the created error message
50 was to reduce the size of large programs and
57 utility processes each of the specified files,
58 placing a restructured version of the input in a file whose name
59 consists of the specified
61 and the original name.
66 .Dl "mkstr pistrings xx *.c"
68 This command causes all the error messages from the C source
69 files in the current directory to be placed in the file
71 and restructured copies of the sources to be placed in
72 files whose names are prefixed with
76 .Bl -tag -width indent
78 Error messages are placed at the end of the specified
79 message file for recompiling part of a large
86 utility finds error messages in the source by
87 searching for the string
90 Each time it occurs, the C string starting at the
93 in the message file followed by a null character and a new-line character;
94 The new source is restructured with
96 pointers into the error message file for retrieval.
97 .Bd -literal -offset indent
98 char efilname = "/usr/lib/pi_strings";
101 error(a1, a2, a3, a4)
106 efil = open(efilname, 0);
108 err(1, "%s", efilname);
110 if (lseek(efil, (off_t)a1, SEEK_SET) < 0 ||
111 read(efil, buf, 256) <= 0)
112 err(1, "%s", efilname);
113 printf(buf, a2, a3, a4);
123 utility first appeared in
134 utility was intended for the limited architecture of the PDP 11 family.
135 Very few programs actually use it.
136 The memory savings are negligible in modern computers.