#!/bin/sh

# manpage tests using man/roff
#
# Contact: grubert@users.sourceforge.net
# Revision: $Revision: 9570 $
# Date: $Date: 2024-03-15 16:42:21 +0100 (Fr, 15. Mär 2024) $
# Copyright: This script has been placed in the public domain.

IN_DIR=input
OUT_DIR=output
EXP_DIR=expected

if [ -z "`man -?|grep -- '^ *-T'`" ] ; then
    echo 'WARNING: your man does not support "-T Format" to specify encoding'
    echo 'SKIPPING encoding tests'
    ENCS=""
    GROFF="ps"
else
    ENCS="latin1 utf8 ascii ps html nroff"
    GROFF=""
fi

if [ -z "$1" ] ; then
  FILES=*.man
else
  FILES=$1
fi

ERROR_CNT=0

inc_ERROR_CNT () {
    ERROR_CNT=$(( ERROR_CNT + 1 ))
}

report_ERROR_CNT () {
	echo "$ERROR_CNT errors"
}

for CMD in man mandoc ; do
  if [ "mandoc" = $CMD ] ; then
    OUT_DIR=output-mandoc
    EXP_DIR=expected-mandoc
  else 
    OUT_DIR=output
    EXP_DIR=expected
  fi
  for IN_F in $IN_DIR/$FILES ; do
    BASE=`basename $IN_F`
    F_BASE=${BASE%.man}

    for ENC in $ENCS ; do
      if [ -e $EXP_DIR/$F_BASE.$ENC ] ; then
        if [ "nroff" = $ENC ] ; then
          nroff -man $IN_F > $OUT_DIR/$F_BASE.$ENC
	else
          $CMD -T$ENC $IN_F > $OUT_DIR/$F_BASE.$ENC
	fi
        diff -s -u $EXP_DIR/$F_BASE.$ENC $OUT_DIR/$F_BASE.$ENC
        if [ $? -ne 0 ] ; then
          inc_ERROR_CNT
        fi
      fi
    done
    for ENC in $GROFF ; do
      if [ -e $EXP_DIR/$F_BASE.groff.$ENC ] ; then
        # macosx -t means troff means gross -Tps
        $CMD -t  IN_Fn > $OUT_DIR/$F_BASE.groff.$ENC
        diff -s -u $EXP_DIR/$F_BASE.groff.$ENC $OUT_DIR/$F_BASE.groff.$ENC
        if [ $? -ne 0 ] ; then
          inc_ERROR_CNT
        fi
      fi
    done
  done
done

report_ERROR_CNT