/***************************************************************************** # Copyright (C) 1994-2008 by David Gordon. # All rights reserved. # # This software is part of a beta-test version of the Consed/Autofinish # package. It should not be redistributed or # used for any commercial purpose, including commercially funded # sequencing, without written permission from the author and the # University of Washington. # # This software is provided ``AS IS'' and any express or implied # warranties, including, but not limited to, the implied warranties of # merchantability and fitness for a particular purpose, are disclaimed. # In no event shall the authors or the University of Washington be # liable for any direct, indirect, incidental, special, exemplary, or # consequential damages (including, but not limited to, procurement of # substitute goods or services; loss of use, data, or profits; or # business interruption) however caused and on any theory of liability, # whether in contract, strict liability, or tort (including negligence # or otherwise) arising in any way out of the use of this software, even # if advised of the possibility of such damage. # # Building Consed from source is error prone and not simple which is # why I provide executables. Due to time limitations I cannot # provide any assistance in building Consed. Even if you do not # modify the source, you may introduce errors due to using a # different version of the compiler, a different version of motif, # different versions of other libraries than I used, etc. For this # reason, if you discover Consed bugs, I can only offer help with # those bugs if you first reproduce those bugs with an executable # provided by me--not an executable you have built. # # Modifying Consed is also difficult. Although Consed is modular, # some modules are used by many other modules. Thus making a change # in one place can have unforeseen effects on many other features. # It may takes months for you to notice these other side-effects # which may not seen connected at all. It is not feasable for me to # provide help with modifying Consed sources because of the # potentially huge amount of time involved. # #*****************************************************************************/ #include "rwcstring.h" #include "rwcregexp.h" #include #include #include "bool.h" #include // Number of form 42. or 42.3 or 42 static RWCRegexp reg1( "^[+-]?[0-9]+[\\.]?[0-9]*$" ); // Number of form .3 with no digit before decimal point static RWCRegexp reg2( "^[+-]?\\.[0-9]+$" ); // Number of form -2.3e-25 // or 6e-06 (no decimal point) static RWCRegexp reg3( "^[+-]?[0-9]+[\\.]?[0-9]*[Ee][+-][0-9]+$" ); bool bIsNumericDouble( const RWCString& soNumber, double& dConvertedNumber ) { // chop off the leading and trailing whitespace RWCString soNumberLocalCopy = // the cast is just to get around the compiler complaining // that stripWhitespace is not a const function and soNumber // is a const variable ( ( RWCString )soNumber).stripWhitespace( RWCString::BOTH ); // handle case in which the string is either all whitespace, // or else it is empty if ( soNumberLocalCopy.isNull() ) return( false ); // match white space followed by +/- (maybe) followed by // numbers followed by white space // must handle the following cases: // .59 // 42. // 42.3 // as well as leading signs // However the following should be excluded: // . or -. or +. RWCString soTemp = soNumberLocalCopy( reg1 ); if (soTemp != soNumberLocalCopy ) { // See if it could it be of form .3 soTemp = soNumberLocalCopy( reg2 ); if ( soTemp != soNumberLocalCopy ) { soTemp = soNumberLocalCopy( reg3 ); if ( soTemp != soNumberLocalCopy ) { // give up return( false ); } } } dConvertedNumber = atof( soNumberLocalCopy.data() ); return( true ); }