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|
#!/usr/bin/perl -s
#/*@@
# @file f_file_processor.pl
# @date Jan 22 1995
# @author Paul Walker
# @desc
# Postprocessor for Fortran files.
#
# Reads STDIN, writes to STDOUT.
#
# removes all comments
# replaces && with newline and tab to col 7
# replaces &! with newline at col 0
# replaces \ at end of line with proper Fortran continuation lines
# (depending on -free_format)
# Breaks lines greater than 72 cols
# Does this using multi-line matching!
#
# If run with -free_format, chooses free-format
# line splitting.
#
# @enddesc
# @history
# @hdate Wed Apr 21 1997 @hauthor Joan Masso
# @hdesc get rid of cC comments and handle ! comments properly
# and fix it so now it is really 72 and we do not get
# breaks in the middle of fortran strings!
# @hdate Wed Nov 24 12:17:43 1999 @hauthor Tom Goodale
# @hdesc Added in Erik Schnetters free-format stuff
# grdoc-ed
# reformated as per rest of perl code in Cactus.
# @endhistory
# @version $Header$
#@@*/
$* = 1; # Multi-line is on!
# Pick the correct set of comments to remove.
if ($free_format)
{
$standard_comments = "\\s*[!]";
}
else
{
$standard_comments = "[cC!]";
}
# Loop over all lines.
while (<>)
{
# Get rid of final \n
chomp;
# concatenate lines if \ at end-of-line
while (/\\$/)
{
chop; # drop the backslash
chomp($_ .= <STDIN>); # concatenate the following line (sans \n)
}
next if (/^\s*$/); # Blank lines slow down compilation,
# and on some systems cpp makes ++lots of them
next if (/^\#/); # Remove any remaining # directives (e.g. line directives).
# Get rid of any tabs
s/\t/ /g;
# Ignore some fortran comments (they stay in code)
# (standard c C, or even ! comments)
if (/^$standard_comments.*$/ || /(.)![^'"]*$/)
{
print;
print "\n";
}
else
{
# Get rid of ! comments : a bit tricky as ! may appear inside strings
s/(.)![^'"]*$/\1\n/g;
# OK, now put in the line breaks (&& or &!)
s/\&\&\s*/\n /g;
s/\&\!\s*/\n/g;
# Get rid of lonesome semicolons
s/\s*\;\s*$//;
# And now we can fix the lines. This is actually a little complicated.
# since there is a different case if the thing matches a newline
# than if it doesn't.
if (/\n/)
{
foreach $LINE (split('\n',$_))
{
&splitline($LINE);
}
}
else
{
&splitline($_);
}
}
}
#/*@@
# @routine splitline
# @date Wed Nov 24 12:14:55 1999
# @author Tom Goodale
# @desc
# Chooses the correct routine to split lines.
# @enddesc
# @calls
# @calledby
# @history
#
# @endhistory
#
#@@*/
sub splitline
{
my ($line) = @_;
if($free_format)
{
&free_format_splitline($line);
}
else
{
&fixed_format_splitline($line);
}
}
#/*@@
# @routine fixed_format_splitline
# @date 1995
# @author Paul Walker
# @desc
# Splits lines for F77 or fixed-format F90
# @enddesc
# @calls
# @calledby
# @history
#
# @endhistory
#
#@@*/
sub fixed_format_splitline
{
my ($LINE) = @_;
# Remove ,, and , \) from blank thorns
while ($LINE =~ s/,\s*,/,/) {};
$LINE =~ s/,\s*\)/\)/;
# Strip out leading spaces in favor of 7 spaces
# $LINE =~ s/^\s+/ /;
# Note the new treatement of comments with \S
if ($LINE =~ /^([^\S].{71,71}).*/)
{
print "$1\n";
$LINE =~ s/.{72,72}//;
while ($LINE =~ /^(.{66,66}).*/)
{
print " &$1\n";
$LINE =~ s/.{66,66}//;
}
print " &$LINE\n";
}
else
{
print "$LINE\n";
}
}
#/*@@
# @routine free_format_splitline
# @date Thu Sep 30 12:05:36 1999
# @author Erik Schnetter
# @desc
# Splits lines for freeformat fortran 90.
# @enddesc
# @calls
# @calledby
# @history
#
# @endhistory
#
#@@*/
sub free_format_splitline
{
my ($LINE) = @_;
my $OUT;
# Remove ,, and , \) from blank thorns
while ($LINE =~ s/,\s*,/,/) {};
$LINE =~ s/,\s*\)/\)/;
# Remove trailing spaces
$LINE =~ s/\s*$//;
# Some preprocessors put extraneous spaces in 8-(
$LINE =~ s:\. ([a-zA-Z]+) \.:\.$1\.:ig;
# Strip out leading spaces in favor of 3 spaces
# $LINE =~ s/^\s+/ /;
if ($LINE =~ /^(.{78,78})...*/)
{
$OUT = $1;
print "$OUT";
# Check if the line already has a continuation mark.
print "&" if (! ($OUT =~ /\&[\s]*$/));
print "\n";
$LINE =~ s/.{78,78}//;
while ($LINE =~ /^(.{75,75}).*/)
{
$LINE =~ /^(.{74,74}).*/;
$OUT = $1;
print " &" if (! ($OUT =~ /^[\s]*\&/));
print "$OUT";
print "&" if (! ($OUT =~ /\&[\s]*$/));
print "\n";
$LINE =~ s/.{74,74}//;
}
print " &" if (! ($LINE =~ /^[\s]*\&/));
print "$LINE\n";
}
else
{
print "$LINE\n";
}
}
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