logicpuzzle

The createlpsudoku bash script can transform Sudoku format files into lpsudoku environments. It can process files in the so called one line 81 format¹⁾ (option -e (default)) and in simple sudoku format (option -s).

Syntax: createlpsudoku [options] [-o output] -i input

It expects an input file with the option -i. You can specify an output file with the option -o. Otherwise it writes to stdout

Furthermore, the following options are possible:

createlpsudoku

#!/bin/bash
#
# createlpsudoku [options] [-o output] -i input
#
# transforms Sudokus in 81 format (-e) or Simple Sudoku format (-s)
# into lpsudoku environments for lpsudoku.sty
#
# License: LPPL
#
FORMAT="81"
VERSION="v1.1"
LINEENDINGS="UNIX"
IFILE=""
OFILE=""
#
typeset -i SLBEGIN=1
typeset -i SLEND=9
typeset -i COUNT=9
#
while getopts "eshwvi:o:" FLAG
do
  case "$FLAG" in
    e) FORMAT="81";;
    s) FORMAT="ss";;
    w) LINEENDINGS="WINDOWS";;
    i) IFILE="$OPTARG";;
    o) OFILE="$OPTARG";;
    h) echo "`basename $0` [options] [-o output] -i input"; exit 0;;
    v) echo "`basename $0` $VERSION (C) 2013 Josef Kleber"; exit 0;;
  esac
done
#
if [ -z "$IFILE" ]
then
  echo "no input file"
  echo "Usage: `basename $0` [options] [-o output] -i input"
  exit 1
fi
#
if [ ! -e "$IFILE" ]
then
  echo "ERROR: input file $IFILE does not exist"
  exit 1
fi
#
if [ -n "$OFILE" ]
then
  exec 1> $OFILE
fi
#
if [ "$FORMAT" = "ss" ]
then
  echo "\begin{lpsudoku}"
  for SDLINE in `cat $IFILE | sed -e '1d' -e'5d' -e'9d' -e'13,200d' | sed -e 's/|//g' | sed -e's/^[[:space:]]//g'`
  do
    ROWARG=`echo $SDLINE | sed -e's/\./{},/g' -e's/\([[:digit:]]\)/\1,/g' | sed -e's/,$//'`
    echo "  \setrow{$COUNT}{$ROWARG}"
    ((COUNT--)) 
  done
  echo "\end{lpsudoku}"
  echo 
fi
#
if [ "$FORMAT" = "81" ]
then
  for SUDOKU in `cat $IFILE | sed -e's/#.*//'`
  do
    echo "\begin{lpsudoku}"
    while [ $COUNT -gt 0 ]
    do
      SDLINE=`echo $SUDOKU | cut -c${SLBEGIN}-${SLEND}`
      ROWARG=`echo $SDLINE | sed -e's/\./{},/g' -e's/\([[:digit:]]\)/\1,/g' | sed -e's/,$//'`
      echo "  \setrow{$COUNT}{$ROWARG}"
      ((COUNT--))
      ((SLBEGIN+=9))
      ((SLEND+=9))
    done
    SLBEGIN=1
    SLEND=9
    COUNT=9
    echo "\end{lpsudoku}"
    echo
  done
fi
#
if [ -n "$OFILE" -a "$LINEENDINGS" = "WINDOWS" ]
then
  unix2dos -q $OFILE
fi
#
exit 0