projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| ef1f0408 CL |
1 | .\" Copyright (c) 1980, 1990 The Regents of the University of California. |
| 2 | .\" All rights reserved. | |
| b763ca03 | 3 | .\" |
| ef1f0408 | 4 | .\" %sccs.include.redist.man% |
| b763ca03 | 5 | .\" |
| d0719240 | 6 | .\" @(#)mkstr.1 6.5 (Berkeley) %G% |
| ef1f0408 | 7 | .\" |
| 5325ced3 CL |
8 | .Dd |
| 9 | .Dt MKSTR 1 | |
| 10 | .Sh NAME | |
| 11 | .Nm mkstr | |
| 12 | .Nd create an error message file by massaging C source | |
| 13 | .Sh SYNOPSIS | |
| 14 | .Nm mkstr | |
| 15 | .Op Fl | |
| 16 | .Ar messagefile | |
| 17 | .Ar prefix file ... | |
| 18 | .Sh DESCRIPTION | |
| 19 | .Nm Mkstr | |
| 20 | creates files containing error messages extracted from C source, | |
| 21 | and restructures the same C source, to utilize the created error message | |
| 22 | file. | |
| 23 | The intent of | |
| 24 | .Nm mkstr | |
| 25 | was to reduce the size of large programs and | |
| 26 | reduce swapping (see BUGS section below). | |
| 27 | .Pp | |
| 28 | .Nm Mkstr | |
| 29 | processes each of the specified | |
| 30 | .Ar files , | |
| 31 | placing a restructured version of the input in a file whose name | |
| b763ca03 | 32 | consists of the specified |
| 5325ced3 | 33 | .Ar prefix |
| b763ca03 KM |
34 | and the original name. |
| 35 | A typical usage of | |
| 5325ced3 CL |
36 | .Nm mkstr |
| 37 | is | |
| 38 | .Pp | |
| 39 | .Dl mkstr pistrings xx *.c | |
| 40 | .Pp | |
| 41 | This command causes all the error messages from the C source | |
| b763ca03 | 42 | files in the current directory to be placed in the file |
| 5325ced3 CL |
43 | .Ar pistrings |
| 44 | and restructured copies of the sources to be placed in | |
| b763ca03 | 45 | files whose names are prefixed with |
| 5325ced3 CL |
46 | .Ar xx . |
| 47 | .Pp | |
| 48 | Options: | |
| 49 | .Tw Ds | |
| 50 | .Tp Fl | |
| 51 | Error messages are placed at the end of the specified | |
| 52 | message file for recompiling part of a large | |
| 53 | .Nm mkstr | |
| 54 | ed | |
| 55 | program. | |
| 56 | .Tp | |
| 57 | .Pp | |
| 58 | .Nm mkstr | |
| 59 | finds error messages in the source by | |
| 60 | searching for the string | |
| 61 | .Li \&`error("' | |
| b763ca03 | 62 | in the input stream. |
| 5325ced3 CL |
63 | Each time it occurs, the C string starting at the |
| 64 | .Sq \&"\& | |
| 65 | is stored | |
| b763ca03 | 66 | in the message file followed by a null character and a new-line character; |
| 5325ced3 CL |
67 | The new source is restructured with |
| 68 | .Xr lseek 2 | |
| 69 | pointers into the error message file for retrieval. | |
| 70 | .Ds I | |
| 71 | char efilname = "/usr/lib/pi_strings"; | |
| 72 | int efil = -1; | |
| 73 | ||
| b763ca03 | 74 | error(a1, a2, a3, a4) |
| 5325ced3 CL |
75 | \&{ |
| 76 | char buf[256]; | |
| b763ca03 | 77 | |
| 5325ced3 | 78 | if (efil < 0) { |
| b763ca03 | 79 | efil = open(efilname, 0); |
| 5325ced3 | 80 | if (efil < 0) { |
| b763ca03 KM |
81 | oops: |
| 82 | perror(efilname); | |
| 5325ced3 | 83 | exit 1 ; |
| b763ca03 KM |
84 | } |
| 85 | } | |
| 5325ced3 CL |
86 | if (lseek(efil, (long) a1, 0) \ read(efil, buf, 256) <= 0) |
| 87 | goto oops; | |
| b763ca03 KM |
88 | printf(buf, a2, a3, a4); |
| 89 | } | |
| 5325ced3 CL |
90 | .De |
| 91 | .Sh SEE ALSO | |
| 92 | .Xr lseek 2 , | |
| 93 | .Xr xstr 1 | |
| 94 | .Sh HISTORY | |
| 95 | .Nm Mkstr | |
| 96 | appeared in 3 BSD. | |
| 97 | .Sh BUGS | |
| 98 | .Nm mkstr | |
| 99 | was intended for the limited architecture of the PDP 11 family. | |
| 100 | Very few programs in 4.4 BSD actually use it. The pascal interpreter, | |
| 101 | .Xr pi 1 | |
| 102 | and the editor, | |
| 103 | .Xr ex 1 | |
| 104 | are two programs that are built this way. | |
| 105 | It is not an efficient method, the error messages | |
| 106 | should be stored in the program text. |