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72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
$! 28 December 2006. SMS.
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$!
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$! Info-ZIP VMS accessory procedure.
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$!
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$! Find the BZIP2 object library under P1, starting in the [.'P2']
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$! destination directory. (We assume, initially, that the BZIP2
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$! directory has a destination directory structure like ours.)
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$!
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$! Set the P4 logical name to the directory where it was found.
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$! P5 and P6 may be used for qualifiers on the DEFINE command.
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$!
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$ bz_orig = p1
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$ dest = p2
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$ libbz2 = p3
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$!
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$! Remove any trailing colon, to allow logical name translation.
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$!
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$ bz_dev_dir = ""
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$ bz_base = bz_orig
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$ if (f$extract( (f$length( bz_base)- 1), 1, bz_base) .eqs. ":")
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$ then
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$ bz_base = bz_base- ":"
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$ endif
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$!
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$ bz_base_eqv = f$trnlnm( bz_base)
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$ if (bz_base_eqv .nes. "")
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$ then
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$ bz_orig = bz_base_eqv
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$ bz_base = bz_base_eqv
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$ endif
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$ bz_base = bz_base- "]"
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$!
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$! Candidate 1 = the actual analogue destination directory.
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$!
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$ bz_dev_dir_cand = bz_base+ "."+ dest+ "]"
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$ lib_cand = bz_dev_dir_cand+ libbz2
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$ if (f$search( lib_cand) .nes. "")
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$ then
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$ bz_dev_dir = bz_dev_dir_cand
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$ else
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$!
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$! Candidate 2 = the actual analogue destination directory + "L".
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$!
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$ bz_dev_dir_cand = bz_base+ "."+ dest+ "L]"
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$ lib_cand = bz_dev_dir_cand+ libbz2
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$ if (f$search( lib_cand) .nes. "")
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$ then
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$ bz_dev_dir = bz_dev_dir_cand
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$ else
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$!
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$! Candidate 3 = the actual user-specified directory.
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$!
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$ bz_dev_dir_cand = bz_orig
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$ lib_cand = bz_dev_dir_cand+ libbz2
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$ if (f$search( lib_cand) .nes. "")
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$ then
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$ bz_dev_dir = bz_dev_dir_cand
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$ endif
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$ endif
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$ endif
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$!
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$ if (bz_dev_dir .nes. "")
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$ then
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$ if (p4 .eqs. "")
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$ then
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$ write sys$output bz_dev_dir
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$ else
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$ define 'p5' 'p4' 'bz_dev_dir' 'p6'
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$ endif
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$ endif
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$!
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