#/bin/sh

# Script to prepare the files for building a PCRE release. It does some
# processing of the documentation, detrails files, and creates pcre.h.generic
# and config.h.generic (for use by builders who can't run ./configure).

# You must run this script before runnning "make dist". If its first argument
# is "doc", it stops after preparing the documentation. There are no other
# arguments. The script makes use of the following files:

# 132html     A Perl script that converts a .1 or .3 man page into HTML. It
#             "knows" the relevant troff constructs that are used in the PCRE
#             man pages.

# CleanTxt    A Perl script that cleans up the output of "nroff -man" by
#             removing backspaces and other redundant text so as to produce
#             a readable .txt file.

# Detrail     A Perl script that removes trailing spaces from files.

# doc/index.html.src
#             A file that is copied as index.html into the doc/html directory
#             when the HTML documentation is built. It works like this so that
#             doc/html can be deleted and re-created from scratch.


# First, sort out the documentation

cd doc
echo Processing documentation

# Make Text form of the documentation. It needs some mangling to make it
# tidy for online reading. Concatenate all the .3 stuff, but omit the
# individual function pages.

cat <<End >pcre.txt
-----------------------------------------------------------------------------
This file contains a concatenation of the PCRE man pages, converted to plain
text format for ease of searching with a text editor, or for use on systems
that do not have a man page processor. The small individual files that give
synopses of each function in the library have not been included. Neither has 
the pcredemo program. There are separate text files for the pcregrep and
pcretest commands.
-----------------------------------------------------------------------------


End

echo "Making pcre.txt"
for file in pcre pcrebuild pcrematching pcreapi pcrecallout pcrecompat \
            pcrepattern pcresyntax pcrepartial pcreprecompile \
            pcreperform pcreposix pcrecpp pcresample pcrestack ; do
  echo "  Processing $file.3"
  nroff -c -man $file.3 >$file.rawtxt
  ../CleanTxt <$file.rawtxt >>pcre.txt
  /bin/rm $file.rawtxt
  echo "------------------------------------------------------------------------------" >>pcre.txt
  if [ "$file" != "pcresample" ] ; then
    echo " " >>pcre.txt
    echo " " >>pcre.txt
  fi
done

# The three commands
for file in pcretest pcregrep pcre-config ; do
  echo Making $file.txt
  nroff -c -man $file.1 >$file.rawtxt
  ../CleanTxt <$file.rawtxt >$file.txt
  /bin/rm $file.rawtxt
done


# Make pcredemo.3 from the pcredemo.c source file

echo "Making pcredemo.3"
perl <<"END" >pcredemo.3
  open(IN, "../pcredemo.c") || die "Failed to open pcredemo.c\n";
  open(OUT, ">pcredemo.3") || die "Failed to open pcredemo.3\n";
  print OUT ".\\\" Start example.\n" .
            ".de EX\n" .
            ".  nr mE \\\\n(.f\n" .
            ".  nf\n" .
            ".  nh\n" .
            ".  ft CW\n" .
            "..\n" .
            ".\n" .
            ".\n" .
            ".\\\" End example.\n" .
            ".de EE\n" .
            ".  ft \\\\n(mE\n" .
            ".  fi\n" .
            ".  hy \\\\n(HY\n" .
            "..\n" .
            ".\n" .
            ".EX\n" ; 
  while (<IN>)
    {
    s/\\/\\e/g;
    print OUT;
    }
  print OUT ".EE\n";
  close(IN);
  close(OUT);    
END
if [ $? != 0 ] ; then exit 1; fi


# Make HTML form of the documentation.

echo "Making HTML documentation"
/bin/rm html/*
cp index.html.src html/index.html

for file in *.1 ; do
  base=`basename $file .1`
  echo "  Making $base.html"
  ../132html -toc $base <$file >html/$base.html
done

# Exclude table of contents for function summaries. It seems that expr
# forces an anchored regex. Also exclude them for small pages that have
# only one section.

for file in *.3 ; do
  base=`basename $file .3`
  toc=-toc
  if [ `expr $base : '.*_'` -ne 0 ] ; then toc="" ; fi
  if [ "$base" = "pcresample" ] || \
     [ "$base" = "pcrestack" ]  || \
     [ "$base" = "pcrecompat" ] || \
     [ "$base" = "pcreperform" ] ; then
    toc=""
  fi
  echo "  Making $base.html"
  ../132html $toc $base <$file >html/$base.html
  if [ $? != 0 ] ; then exit 1; fi
done

# End of documentation processing; stop if only documentation required.

cd ..
echo Documentation done
if [ "$1" = "doc" ] ; then exit; fi

# These files are detrailed; do not detrail the test data because there may be
# significant trailing spaces. The configure files are also omitted from the
# detrailing.

files="\
  Makefile.am \
  Makefile.in \
  configure.ac \
  README \
  LICENCE \
  COPYING \
  AUTHORS \
  NEWS \
  NON-UNIX-USE \
  INSTALL \
  132html \
  CleanTxt \
  Detrail \
  ChangeLog \
  CMakeLists.txt \
  RunGrepTest \
  RunTest \
  RunTest.bat \
  pcre-config.in \
  libpcre.pc.in \
  libpcreposix.pc.in \
  libpcrecpp.pc.in \
  config.h.in \
  pcre_printint.src \
  pcre_chartables.c.dist \
  pcredemo.c \
  pcregrep.c \
  pcretest.c \
  dftables.c \
  pcreposix.c \
  pcreposix.h \
  pcre.h.in \
  pcre_internal.h
  pcre_compile.c \
  pcre_config.c \
  pcre_dfa_exec.c \
  pcre_exec.c \
  pcre_fullinfo.c \
  pcre_get.c \
  pcre_globals.c \
  pcre_info.c \
  pcre_maketables.c \
  pcre_newline.c \
  pcre_ord2utf8.c \
  pcre_refcount.c \
  pcre_study.c \
  pcre_tables.c \
  pcre_try_flipped.c \
  pcre_ucp_searchfuncs.c \
  pcre_valid_utf8.c \
  pcre_version.c \
  pcre_xclass.c \
  pcre_scanner.cc \
  pcre_scanner.h \
  pcre_scanner_unittest.cc \
  pcrecpp.cc \
  pcrecpp.h \
  pcrecpparg.h.in \
  pcrecpp_unittest.cc \
  pcre_stringpiece.cc \
  pcre_stringpiece.h.in \
  pcre_stringpiece_unittest.cc \
  perltest.pl \
  ucp.h \
  ucpinternal.h \
  ucptable.h \
  makevp.bat \
  pcre.def \
  libpcre.def \
  libpcreposix.def"

echo Detrailing
./Detrail $files doc/p* doc/html/*

echo Doing basic configure to get default pcre.h and config.h
# This is in case the caller has set aliases (as I do - PH)
unset cp ls mv rm
./configure >/dev/null

echo Converting pcre.h and config.h to generic forms
cp -f pcre.h pcre.h.generic

perl <<'END'
  open(IN, "<config.h") || die "Can't open config.h: $!\n";
  open(OUT, ">config.h.generic") || die "Can't open config.h.generic: $!\n";
  while (<IN>)
    {
    if (/^#define\s(?!PACKAGE)(\w+)/)
      {
      print OUT "#ifndef $1\n";
      print OUT;
      print OUT "#endif\n";
      }
    else
      {
      print OUT;
      }
    }
  close IN;
  close OUT;
END

echo Done

#End
