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#! /usr/bin/perl
# c2optlist <main .c file>
#
# From one of our "standardized" main C files containing an
# ESL_OPTIONS block, print a table listing each option.
# Only the first block in the file is parsed, if multiple
# ones exist.
#
# Crosscomparisons with man2optlist and sqc2optlist allow verification
# that the options in a main .c file are documented in a .man page
# and tested in a .sqc unit test file.
#
# Options are looked for following a line
# static ESL_OPTIONS ...
# until a bare
# }
# is found on a line by itself.
#
# SRE, Tue Sep 15 10:04:30 2009 [Janelia]
# SVN $Id$
#
while (<>)
{
if (/^static ESL_OPTIONS/) { $in_optionblock = 1; next; }
if ($in_optionblock)
{
if (/^\s*{\s*"(-\S)",\s*([^,]+),/) { $option = $1; $arg = $2; } # short option
elsif (/^\s*{\s*"(--\S+)",\s*([^,]+),/) { $option = $1; $arg = $2; } # long option
elsif (/^\s*$/) { next; } # blank line
elsif (/^\s*\/\*/) { next; } # comment line
elsif (/^#if/) { next; } # allow conditional compilation of options
elsif (/^#end/) { next; } # allow conditional compilation of options
elsif (/^\s*{\s*0,\s*0,\s*0,/) { last; } # empty vector: end of options
else { die "unrecognized option line:\n$_"; }
if ($arg eq "eslARG_NONE") { $optarg = "-"; }
elsif ($arg eq "eslARG_INT") { $optarg = "<n>"; }
elsif ($arg eq "eslARG_REAL") { $optarg = "<x>"; }
elsif ($arg eq "eslARG_CHAR") { $optarg = "<c>"; }
elsif ($arg eq "eslARG_STRING") { $optarg = "<s>"; }
elsif ($arg eq "eslARG_INFILE") { $optarg = "<f>"; }
elsif ($arg eq "eslARG_OUTFILE") { $optarg = "<f>"; }
else { die "unrecognized option argument $arg on line:\n$_"; }
printf ("%-20s %s\n", $option, $optarg);
}
if (/^};/) { die "Reached end of option structure without seeing empty 0,0,0,... vector"; }
}
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