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30 .\" @(#)mkstr.1 8.1 (Berkeley) 6/6/93
37 .Nd create an error message file by massaging C source
45 creates files containing error messages extracted from C source,
46 and restructures the same C source, to use the created error message
50 was to reduce the size of large programs and
56 processes each of the specified
58 placing a restructured version of the input in a file whose name
59 consists of the specified
61 and the original name.
65 .Bd -literal -offset indent
66 mkstr pistrings xx *.c
69 This command causes all the error messages from the C source
70 files in the current directory to be placed in the file
72 and restructured copies of the sources to be placed in
73 files whose names are prefixed with
77 .Bl -tag -width indent
79 Error messages are placed at the end of the specified
80 message file for recompiling part of a large
87 finds error messages in the source by
88 searching for the string
91 Each time it occurs, the C string starting at the
94 in the message file followed by a null character and a new-line character;
95 The new source is restructured with
97 pointers into the error message file for retrieval.
98 .Bd -literal -offset indent
99 char efilname = "/usr/lib/pi_strings";
102 error(a1, a2, a3, a4)
107 efil = open(efilname, 0);
114 if (lseek(efil, a1, 0) \*[Lt] 0 || read(efil, buf, 256) \*[Le] 0)
116 printf(buf, a2, a3, a4);
128 was intended for the limited architecture of the PDP-11 family.
129 Very few programs actually use it.
130 It is not an efficient method, the error messages
131 should be stored in the program text.