| 1 | ###########################################################################
|
|---|
| 2 | #
|
|---|
| 3 | # parse2.pm --
|
|---|
| 4 | #
|
|---|
| 5 | # A component of the Greenstone digital library software
|
|---|
| 6 | # from the New Zealand Digital Library Project at the
|
|---|
| 7 | # University of Waikato, New Zealand.
|
|---|
| 8 | #
|
|---|
| 9 | # Copyright (C) 2005-2010 New Zealand Digital Library Project
|
|---|
| 10 | #
|
|---|
| 11 | # This program is free software; you can redistribute it and/or modify
|
|---|
| 12 | # it under the terms of the GNU General Public License as published by
|
|---|
| 13 | # the Free Software Foundation; either version 2 of the License, or
|
|---|
| 14 | # (at your option) any later version.
|
|---|
| 15 | #
|
|---|
| 16 | # This program is distributed in the hope that it will be useful,
|
|---|
| 17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 19 | # GNU General Public License for more details.
|
|---|
| 20 | #
|
|---|
| 21 | # You should have received a copy of the GNU General Public License
|
|---|
| 22 | # along with this program; if not, write to the Free Software
|
|---|
| 23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|---|
| 24 | #
|
|---|
| 25 | ###########################################################################
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | #Last: Keeping doing the processArg for handing different type of arguments
|
|---|
| 29 |
|
|---|
| 30 | #parse2(\@_,$arguments,$self )
|
|---|
| 31 |
|
|---|
| 32 | package parse2;
|
|---|
| 33 |
|
|---|
| 34 | BEGIN {
|
|---|
| 35 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
|
|---|
| 36 | die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
|
|---|
| 37 |
|
|---|
| 38 | # - ensure perllib paths don't already exist in INC before adding, other-
|
|---|
| 39 | # wise we risk clobbering plugin/classifier inheritence implied by order
|
|---|
| 40 | # of paths in INC [jmt12]
|
|---|
| 41 | my $gsdl_perllib_path = $ENV{'GSDLHOME'} . '/perllib';
|
|---|
| 42 | my $found_path = 0;
|
|---|
| 43 | foreach my $inc_path (@INC)
|
|---|
| 44 | {
|
|---|
| 45 | if ($inc_path eq $gsdl_perllib_path)
|
|---|
| 46 | {
|
|---|
| 47 | $found_path = 1;
|
|---|
| 48 | last;
|
|---|
| 49 | }
|
|---|
| 50 | }
|
|---|
| 51 | if (!$found_path)
|
|---|
| 52 | {
|
|---|
| 53 | unshift (@INC, $gsdl_perllib_path);
|
|---|
| 54 | unshift (@INC, $gsdl_perllib_path . '/cpan');
|
|---|
| 55 | }
|
|---|
| 56 | }
|
|---|
| 57 |
|
|---|
| 58 | use strict;
|
|---|
| 59 | use util;
|
|---|
| 60 |
|
|---|
| 61 |
|
|---|
| 62 |
|
|---|
| 63 | #--Local Util Functions----------------------------
|
|---|
| 64 | #-----------------------------------------
|
|---|
| 65 | # Name: transformArg
|
|---|
| 66 | # Parameters: 1.(Array pointer of plugin pre-defined argument list)
|
|---|
| 67 | # Pre-condition: Call this function and pass a array pointer of argument list.
|
|---|
| 68 | # Post-condition: This function will transform the array to a hash table
|
|---|
| 69 | # with "Argument name" as its key
|
|---|
| 70 | # Return value: Return a hash table of plugin pre-defined argument
|
|---|
| 71 | # list with "argument name" as the key
|
|---|
| 72 | #-----------------------------------------
|
|---|
| 73 | sub transformArg
|
|---|
| 74 | {
|
|---|
| 75 | my ($aryptSysArguList) = @_;
|
|---|
| 76 | my %hashArg;
|
|---|
| 77 |
|
|---|
| 78 | foreach my $hashOneArg (@{$aryptSysArguList})
|
|---|
| 79 | {
|
|---|
| 80 | if(!(defined $hashArg{$hashOneArg->{"name"}}))
|
|---|
| 81 | {
|
|---|
| 82 | $hashArg{$hashOneArg->{"name"}} = $hashOneArg;
|
|---|
| 83 | }
|
|---|
| 84 | }
|
|---|
| 85 | return %hashArg;
|
|---|
| 86 | }
|
|---|
| 87 |
|
|---|
| 88 | sub checkRange
|
|---|
| 89 | {
|
|---|
| 90 | my ($strRange,$intInputArg,$strArgName) = @_;
|
|---|
| 91 | my @aryRange = split(",",$strRange);
|
|---|
| 92 | if(defined $aryRange[0])
|
|---|
| 93 | {
|
|---|
| 94 | if($intInputArg < $aryRange[0])
|
|---|
| 95 | {
|
|---|
| 96 | print STDERR " Parameter Parsing Error (Incorrect Range): when parse argument parameter for \"-$strArgName\"\n";
|
|---|
| 97 | return 0;
|
|---|
| 98 | }
|
|---|
| 99 | else
|
|---|
| 100 | {
|
|---|
| 101 | if(scalar(@aryRange) == 2)
|
|---|
| 102 | {
|
|---|
| 103 | if($intInputArg > $aryRange[1])
|
|---|
| 104 | {
|
|---|
| 105 | print STDERR " Parameter Parsing Error (Incorrect Range): when parse argument parameter for \"-$strArgName\"\n";
|
|---|
| 106 | return 0;
|
|---|
| 107 | }
|
|---|
| 108 | }
|
|---|
| 109 | }
|
|---|
| 110 | }
|
|---|
| 111 | else{ die " System error: minimum range is not defined. Possible mistyping in Argument list for $strArgName\n";}
|
|---|
| 112 | return 1;
|
|---|
| 113 | }
|
|---|
| 114 |
|
|---|
| 115 | sub checkCharLength
|
|---|
| 116 | {
|
|---|
| 117 | my ($intCharLength,$intInputArg,$strArgName) = @_;
|
|---|
| 118 | if($intCharLength =~ m/\d/)
|
|---|
| 119 | {
|
|---|
| 120 | if(length($intInputArg) != $intCharLength)
|
|---|
| 121 | {
|
|---|
| 122 | print STDERR " Parameter Parsing Error (Incorrect Char_Length): when parse argument parameter for \"-$strArgName\"\n";
|
|---|
| 123 | return 0;
|
|---|
| 124 | }
|
|---|
| 125 | }
|
|---|
| 126 | else
|
|---|
| 127 | {
|
|---|
| 128 | die " System error: incorrect char_length. Possible mistyping in Argument list for $strArgName\n";
|
|---|
| 129 | }
|
|---|
| 130 | return 1;
|
|---|
| 131 | }
|
|---|
| 132 | #-----------------------------------------
|
|---|
| 133 | # Name: processArg
|
|---|
| 134 | # Parameters: 1.(Hash pointer of one argument)
|
|---|
| 135 | # 2.(Array pointer of the user given argument)
|
|---|
| 136 | # 3.(Hash pointer of user given arguments' values)
|
|---|
| 137 | # Pre-condition: Given a argument ($hashOneArg)
|
|---|
| 138 | # Post-condition: System will check whether it need to get parameter
|
|---|
| 139 | # from $aryptInputArguList or not, and also check the
|
|---|
| 140 | # given parameter is following the argument description
|
|---|
| 141 | # Return value: 1 is parsing successful, 0 is failed.
|
|---|
| 142 | #-----------------------------------------
|
|---|
| 143 | sub processArg
|
|---|
| 144 | {
|
|---|
| 145 | my ($hashOneArg,$aryptInputArguList,$hashInputArg) = @_;
|
|---|
| 146 |
|
|---|
| 147 | # Since these two variables are going to be
|
|---|
| 148 | # used a lot, store them with some better names.
|
|---|
| 149 | my $strArgName = $hashOneArg->{"name"};
|
|---|
| 150 | my $strArgType = $hashOneArg->{"type"};
|
|---|
| 151 |
|
|---|
| 152 | # If the argument type is "flag" then
|
|---|
| 153 | # set it to 1(which is "true")
|
|---|
| 154 | if($strArgType eq "flag")
|
|---|
| 155 | {
|
|---|
| 156 | $hashInputArg->{$strArgName} = 1;
|
|---|
| 157 | }
|
|---|
| 158 |
|
|---|
| 159 | # If the argument type is "int" then
|
|---|
| 160 | # gets the next argument from $aryptInputArguList
|
|---|
| 161 | # and check whether it is a digit
|
|---|
| 162 | # TODO: check its "range" and "char_length"
|
|---|
| 163 | elsif($strArgType eq "int")
|
|---|
| 164 | {
|
|---|
| 165 | my $intInputArg = shift(@{$aryptInputArguList});
|
|---|
| 166 | if ($intInputArg =~ /\d+/)
|
|---|
| 167 | {
|
|---|
| 168 | $hashInputArg->{$strArgName} = $intInputArg;
|
|---|
| 169 | }
|
|---|
| 170 | else
|
|---|
| 171 | {
|
|---|
| 172 | print STDERR " Error: occur in parse2.pm::processArg()\n Unmatched Argument: -$strArgName with type $strArgType\n";
|
|---|
| 173 | return 0;
|
|---|
| 174 | }
|
|---|
| 175 | }
|
|---|
| 176 |
|
|---|
| 177 | # If the argument type is "enum" then
|
|---|
| 178 | elsif($strArgType eq "enum")
|
|---|
| 179 | {
|
|---|
| 180 | if(defined $hashOneArg->{"list"})
|
|---|
| 181 | {
|
|---|
| 182 | my $aryptList = $hashOneArg->{"list"};
|
|---|
| 183 | my $blnCheckInList = "false";
|
|---|
| 184 | my $strInputArg = shift(@{$aryptInputArguList});
|
|---|
| 185 | foreach my $hashEachItem (@$aryptList)
|
|---|
| 186 | {
|
|---|
| 187 | if($strInputArg eq $hashEachItem->{"name"})
|
|---|
| 188 | {
|
|---|
| 189 | $blnCheckInList = "true";
|
|---|
| 190 | }
|
|---|
| 191 | last if($blnCheckInList eq "true");
|
|---|
| 192 | }
|
|---|
| 193 | if($blnCheckInList ne "true")
|
|---|
| 194 | {
|
|---|
| 195 | print STDERR " Error: occur in parse2.pm::processArg()\n Unknown Enum List Type: -$strArgName with parameter: $strInputArg\n";
|
|---|
| 196 | return 0;
|
|---|
| 197 | } else {
|
|---|
| 198 | $hashInputArg->{$strArgName} = $strInputArg;
|
|---|
| 199 | }
|
|---|
| 200 |
|
|---|
| 201 | }
|
|---|
| 202 | else
|
|---|
| 203 | {
|
|---|
| 204 | print STDERR " Error: occur in parse2.pm::processArg(2)\n Unknown Type: -$strArgName with type $strArgType\n";
|
|---|
| 205 | return 0;
|
|---|
| 206 | }
|
|---|
| 207 | }
|
|---|
| 208 |
|
|---|
| 209 | # If the argument type is "string" or "metadata" or "quotestr" then
|
|---|
| 210 | # just shift the next argument from $aryptInputArguList
|
|---|
| 211 | # TODO: make sure if there is any checking required for this two types
|
|---|
| 212 | elsif($strArgType eq "string" || $strArgType eq "enumstring" || $strArgType eq "quotestr" || $strArgType eq "metadata" || $strArgType eq "regexp" || $strArgType eq "url")
|
|---|
| 213 | {
|
|---|
| 214 | $hashInputArg->{$strArgName}= shift(@{$aryptInputArguList});
|
|---|
| 215 | }
|
|---|
| 216 |
|
|---|
| 217 | # Report any undefined types
|
|---|
| 218 | else
|
|---|
| 219 | {
|
|---|
| 220 | print STDERR " Error: occur in parse2.pm::processArg(3)\n Unknown Type: -$strArgName with type $strArgType\n";
|
|---|
| 221 | return 0;
|
|---|
| 222 | }
|
|---|
| 223 |
|
|---|
| 224 | return 1;
|
|---|
| 225 | }
|
|---|
| 226 |
|
|---|
| 227 | #--Main Parsing Function----------------------------
|
|---|
| 228 | #-----------------------------------------
|
|---|
| 229 | # Name: parse
|
|---|
| 230 | # Parameters: 1.(Array pointer of the user given argument)
|
|---|
| 231 | # 2.(Array pointer of plugin pre-defined argument list)
|
|---|
| 232 | # 3.(Hash pointer, where we store all the argument value)
|
|---|
| 233 | # Pre-condition: Plugin gives the parameters to parse function in parse2
|
|---|
| 234 | # Post-condition: Store all the default or user given values to the hash->{$ArgumentName}.
|
|---|
| 235 | # Since hash may be a plugin $self, plugin will have every values we set.
|
|---|
| 236 | # 4. Optional "allow_extra_options" argument. If this is set, then
|
|---|
| 237 | # its ok to have arguments that are not in the predefined list
|
|---|
| 238 | # Return value: -1 if parsing is unsuccessful
|
|---|
| 239 | # other value for success. This will be 0 unless "allow_extra_options" is set, in which case it will be the number of extra arguments found.
|
|---|
| 240 | #-----------------------------------------
|
|---|
| 241 | sub parse
|
|---|
| 242 | {
|
|---|
| 243 | # Get the user supplied arguments pointer "\@_"
|
|---|
| 244 | my $aryptUserArguList = shift;
|
|---|
| 245 |
|
|---|
| 246 | # Check if allow extra arguments
|
|---|
| 247 | my $blnAllowExtraOptions = "false";
|
|---|
| 248 |
|
|---|
| 249 | if(scalar(@_) == 3)
|
|---|
| 250 | {
|
|---|
| 251 | my $strAllowExtraOptions = pop @_;
|
|---|
| 252 |
|
|---|
| 253 | if ($strAllowExtraOptions eq "allow_extra_options")
|
|---|
| 254 | {
|
|---|
| 255 | $blnAllowExtraOptions = "true";
|
|---|
| 256 | }
|
|---|
| 257 | }
|
|---|
| 258 |
|
|---|
| 259 | my ($aryptSysArguList,$self) = @_;
|
|---|
| 260 | my %hashArg;
|
|---|
| 261 | my %hashInputArg;
|
|---|
| 262 | my @ExtraOption;
|
|---|
| 263 |
|
|---|
| 264 | # Transform the system argument (predefined the code)
|
|---|
| 265 | # from array to hash table for increasing performance
|
|---|
| 266 | %hashArg = &transformArg($aryptSysArguList);
|
|---|
| 267 |
|
|---|
| 268 | # Process each User input argument and store the
|
|---|
| 269 | # information into hashInputArg
|
|---|
| 270 | while (my $strOneArg = shift(@{$aryptUserArguList}))
|
|---|
| 271 | {
|
|---|
| 272 | # Check whether it start with a "-" sign
|
|---|
| 273 | if ($strOneArg =~ /^-+\w/)
|
|---|
| 274 | {
|
|---|
| 275 | # If it is start with a "-" sign then take it off
|
|---|
| 276 | $strOneArg =~ s/^-+//;
|
|---|
| 277 |
|
|---|
| 278 | # If the inputed argument is defined in the argument
|
|---|
| 279 | # list from this plugin then process
|
|---|
| 280 |
|
|---|
| 281 | if(defined $hashArg{$strOneArg})
|
|---|
| 282 | {
|
|---|
| 283 | #$%^
|
|---|
| 284 | #print "($strOneArg) is processed\n";
|
|---|
| 285 | # Process this argument and store the related
|
|---|
| 286 | # information in %hashInputArg
|
|---|
| 287 | if(processArg($hashArg{$strOneArg},$aryptUserArguList,\%hashInputArg) == 0){
|
|---|
| 288 | print STDERR "<BadArgumentValue a=$strOneArg>\n";
|
|---|
| 289 | return -1;}
|
|---|
| 290 | }
|
|---|
| 291 |
|
|---|
| 292 | # Else check if it allows extra options, if yes
|
|---|
| 293 | # then push it to a new array, else return fault
|
|---|
| 294 | else
|
|---|
| 295 | {
|
|---|
| 296 | if($blnAllowExtraOptions eq "true")
|
|---|
| 297 | {
|
|---|
| 298 | push(@ExtraOption,"-$strOneArg");
|
|---|
| 299 | }
|
|---|
| 300 | else
|
|---|
| 301 | {
|
|---|
| 302 | print STDERR "<BadArgument a=$strOneArg>\n";
|
|---|
| 303 | print STDERR " Error: occur in parse2.pm::parse()\n Extra Arguments: $strOneArg\n";
|
|---|
| 304 | return -1;
|
|---|
| 305 | }
|
|---|
| 306 | }
|
|---|
| 307 | }
|
|---|
| 308 |
|
|---|
| 309 | # This part follow the previous parsing system.
|
|---|
| 310 | # It doesn't return error message even user
|
|---|
| 311 | # gave a invalid argument.
|
|---|
| 312 | else
|
|---|
| 313 | {
|
|---|
| 314 | if($blnAllowExtraOptions eq "true")
|
|---|
| 315 | {
|
|---|
| 316 | push(@ExtraOption,$strOneArg);
|
|---|
| 317 | }
|
|---|
| 318 | else
|
|---|
| 319 | {
|
|---|
| 320 | print STDERR " Error: occur in parse2.pm::parse()\n Invalid Argument: $strOneArg\n";
|
|---|
| 321 | return -1;
|
|---|
| 322 | }
|
|---|
| 323 | }
|
|---|
| 324 | }
|
|---|
| 325 |
|
|---|
| 326 | # Store the extra option back
|
|---|
| 327 | # to the user given argument list.
|
|---|
| 328 | @$aryptUserArguList = @ExtraOption;
|
|---|
| 329 |
|
|---|
| 330 | # Now we go through all the pre defined arguments,
|
|---|
| 331 | # if the user has specified the arguments then just
|
|---|
| 332 | # set to whatever they set. Otherwise use the default value
|
|---|
| 333 | foreach my $hashOneArg (@{$aryptSysArguList})
|
|---|
| 334 | {
|
|---|
| 335 | my $strArgName = $hashOneArg->{"name"};
|
|---|
| 336 |
|
|---|
| 337 | # If the strArgName has defined in the %hashInputArg,
|
|---|
| 338 | # this means users has give this argument, store the
|
|---|
| 339 | # user given to self->{"$strArgName"}
|
|---|
| 340 | if(defined $hashInputArg{$strArgName})
|
|---|
| 341 | {
|
|---|
| 342 | if(defined $hashOneArg->{"range"})
|
|---|
| 343 | {
|
|---|
| 344 | if(checkRange($hashOneArg->{"range"},$hashInputArg{$strArgName},$strArgName) == 0){ return -1;}
|
|---|
| 345 | }
|
|---|
| 346 | if(defined $hashOneArg->{"char_length"})
|
|---|
| 347 | {
|
|---|
| 348 | if(checkCharLength($hashOneArg->{"char_length"},$hashInputArg{$strArgName},$strArgName) == 0){ return -1;}
|
|---|
| 349 | }
|
|---|
| 350 | $self->{"$strArgName"} = $hashInputArg{"$strArgName"};
|
|---|
| 351 | }
|
|---|
| 352 | elsif (!defined $self->{$strArgName})
|
|---|
| 353 | {
|
|---|
| 354 | # don't want to override default with superclass value
|
|---|
| 355 |
|
|---|
| 356 | # Else use the default value of the arguments,
|
|---|
| 357 | # if there is no default value, then it must be a flag,
|
|---|
| 358 | # then set it to 0 (which is false)
|
|---|
| 359 |
|
|---|
| 360 | if(defined $hashOneArg->{"deft"})
|
|---|
| 361 | {
|
|---|
| 362 | $self->{"$strArgName"} = $hashOneArg->{"deft"};
|
|---|
| 363 | $self->{"default_$strArgName"} = 1;
|
|---|
| 364 |
|
|---|
| 365 | }
|
|---|
| 366 | else
|
|---|
| 367 | {
|
|---|
| 368 | if($hashOneArg->{"type"} eq "flag"){
|
|---|
| 369 | $self->{"$strArgName"} = 0;
|
|---|
| 370 | $self->{"default_$strArgName"} = 1;
|
|---|
| 371 | }
|
|---|
| 372 | else {
|
|---|
| 373 | # all other cases, use "" as default
|
|---|
| 374 | $self->{"$strArgName"} = "";
|
|---|
| 375 | $self->{"default_$strArgName"} = 1;
|
|---|
| 376 | }
|
|---|
| 377 | }
|
|---|
| 378 | }
|
|---|
| 379 | }
|
|---|
| 380 |
|
|---|
| 381 | # If allow_extra_options is set, then return the number of arguments left in the argument list.
|
|---|
| 382 | if($blnAllowExtraOptions eq "true")
|
|---|
| 383 | {
|
|---|
| 384 | return scalar(@$aryptUserArguList);
|
|---|
| 385 | }
|
|---|
| 386 | else
|
|---|
| 387 | {
|
|---|
| 388 | return 0;
|
|---|
| 389 | }
|
|---|
| 390 | }
|
|---|
| 391 |
|
|---|
| 392 | 1;
|
|---|
