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############################################################################
#
# File: wif2pfd.icn
#
# Subject: Program to convert WIFs to PFDs
#
# Author: Ralph E. Griswold
#
# Date: June 13, 1999
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# The following options are supported:
#
# -p s palette; default "c1"
# -n s name; default "untitled"
#
# Note: The output is a pattern-form draft with the following lines:
#
# name
# threading sequence
# treadling sequence
# warp color sequence
# weft color sequence
# shafts
# treadles
# palette
# colors
# tieup
# liftplan
#
# There is a problem where there is treadling with multiple treadles
# and no liftplan. *Presumably* that treadling can be used like a
# liftplan, but without, necessarily, a direct tie-up. This problem
# problem has not been addressed yet.
#
# If there is a liftplan, then a direct tie-up is implied by the
# wording in the WIF documentation. However, that's in the interpretation
# of the draft. The tie-up produced here is the one given in the
#
# If there is a liftplan and a treadling with multiple treadles,
# the treadling is ignored.
#
# Also not handled is the possibility of multiple shafts per thread.
# This could be dealt with as for the liftplan. The idea is that
# instead of a threading corresponding to a single shaft, there are
# some number of different shaft patterns, like there are liftplan
# patterns.
#
# The liftplan is represented as concatenated rows of shaft patterns in the
# irder they first appear. Thus, the symbols used for them can be
# reconstructed with the PFD is processed.
#
# This program does not attempt to detect or correct errors in WIFs,
# but it does try to work around some common problems.
#
############################################################################
#
# Links: options, wifcvt
#
############################################################################
link options
link wifcvt
global data_default
global data_entries
global sections
global wif
procedure main(args)
local opts, title, palette
opts := options(args, "n:p:")
title := \opts["n"] | "untitled"
palette := \opts["p"] | "c1"
writepfd(&output, wif2pfd(&input, title, palette))
end
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