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############################################################################
#
# File: labels.icn
#
# Subject: Program to format mailing labels
#
# Author: Ralph E. Griswold
#
# Date: December 30, 1991
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# This program produces labels using coded information taken
# from the input file. In the input file, a line beginning with #
# is a label header. Subsequent lines up to the next header or
# end-of-file are accumulated and output so as to be centered hor-
# izontally and vertically on label forms. Lines beginning with *
# are treated as comments and are ignored.
#
# Options: The following options are available:
#
# -c n Print n copies of each label.
#
# -s s Select only those labels whose headers contain a char-
# acter in s.
#
# -t Format for curved tape labels (the default is to format
# for rectangular mailing labels).
#
# -w n Limit line width to n characters. The default width is
# 40.
#
# -l n Limit the number of printed lines per label to n. The
# default is 8.
#
# -d n Limit the depth of the label to n. The default is 9 for
# rectangular labels and 12 for tape labels (-t).
#
# Options are processed from left to right. If the number of
# printed lines is set to a value that exceeds the depth of the
# label, the depth is set to the number of lines. If the depth is
# set to a value that is less than the number of printed lines, the
# number of printed lines is set to the depth. Note that the order
# in which these options are specified may affect the results.
#
# Printing Labels: Label forms should be used with a pin-feed pla-
# ten. For mailing labels, the carriage should be adjusted so that
# the first character is printed at the leftmost position on the
# label and so that the first line of the output is printed on the
# topmost line of the label. For curved tape labels, some experi-
# mentation may be required to get the text positioned properly.
#
# Diagnostics: If the limits on line width or the number of lines
# per label are exceeded, a label with an error message is written
# to standard error output.
#
############################################################################
#
# Links: options, io
#
############################################################################
#
# See also: address.doc, adllist.icn, adlfiltr.icn, adlcount.icn,
# adlcheck.icn, zipsort.icn
#
############################################################################
link options, io
global lsize, repet, llength, ldepth, opts, selectors
procedure main(args)
local y, i, line
selectors := '#'
lsize := 9
ldepth := 8
llength := 40
repet := 1
i := 0
opts := options(args,"c+d+l+s:tw+")
selectors := cset(\opts["s"])
if \opts["t"] then {
lsize := 12
if ldepth > lsize then ldepth := lsize
}
llength := nonneg("w")
if ldepth := nonneg("l") then {
if lsize < ldepth then lsize := ldepth
}
if lsize := nonneg("d") then {
if ldepth > lsize then ldepth := lsize
}
repet := nonneg("c")
while line := Read() do
line ? {
if any('#') & upto(selectors) then nextlbl()
}
end
# Obtain next label
#
procedure nextlbl()
local label, max, line
label := [Read()]
max := 0
while line := Read() do {
if line[1] == "*" then next
if line[1] == "#" then {
PutBack(line)
break
}
put(label,line)
max <:= *line
if *label > ldepth then {
error(label[1],1)
return
}
if max > llength then {
error(label[1],2)
return
}
}
every 1 to repet do format(label,max)
end
# Format a label
#
procedure format(label,width)
local j, indent
indent := repl(" ",(llength - width) / 2)
j := lsize - *label
every 1 to j / 2 do write()
every write(indent,!label)
every 1 to (j + 1) / 2 do write()
end
# Issue label for an error
#
procedure error(name,type)
static badform
initial badform := list(lsize)
case type of {
1: badform[3] := " **** too many lines"
2: badform[3] := " **** line too long"
}
badform[1] := name
every write(&errout,!badform)
end
procedure nonneg(s)
s := \opts[s] | fail
return 0 < integer(s) | stop("-",s," needs postive numeric parameter")
end
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