SBMLWrite - XPP output

In this mode SBMLWrite will read an SBML file and generate an input file for XPP based on differential equations derived from the SBML Model.

	SBMLWrite[inputfile -> "foo.xml", 
	          format -> "XPP", 
	          outputfile ->"foo.ode"]

As an example, consider the following input file:

<?xml version='1.0' encoding='UTF-8'?>
<sbml xmlns='http://www.sbml.org/sbml/level2'
    level='2'
    version='1'>
 <model id='enzyme'>
  <listOfCompartments>
   <compartment id='cell'/>
  </listOfCompartments>
  <listOfSpecies>
   <species id='A'
       compartment='cell'
       initialConcentration='1'
       boundaryCondition='false'/>
   <species id='B'
       compartment='cell'
       initialConcentration='0.999'
       boundaryCondition='false'/>
   <species id='X'
       compartment='cell'
       initialConcentration='0.001'
       boundaryCondition='false'/>
   <species id='C'
       compartment='cell'
       initialConcentration='0'
       boundaryCondition='false'/>
  </listOfSpecies>
  <listOfReactions>
   <reaction id='R1'
       reversible='true'
       fast='false'>
    <listOfReactants>
     <speciesReference species='A'/>
     <speciesReference species='B'/>
    </listOfReactants>
    <listOfProducts>
     <speciesReference species='X'/>
    </listOfProducts>
    <listOfModifiers/>
    <kineticLaw>
     <math xmlns='http://www.w3.org/1998/Math/MathML'>
      <apply>
       <plus/>
       <apply>
        <times/>
        <ci>a</ci>
        <ci>A</ci>
        <ci>B</ci>
       </apply>
       <apply>
        <times/>
        <cn type='integer'>-1</cn>
        <apply>
         <times/>
         <ci>d</ci>
         <ci>X</ci>
        </apply>
       </apply>
      </apply>
     </math>
     <listOfParameters>
      <parameter id='a'
          value='1'/>
      <parameter id='d'
          value='1'/>
     </listOfParameters>
    </kineticLaw>
   </reaction>
   <reaction id='R2'
       reversible='false'
       fast='false'>
    <listOfReactants>
     <speciesReference species='X'/>
    </listOfReactants>
    <listOfProducts>
     <speciesReference species='B'/>
     <speciesReference species='C'/>
    </listOfProducts>
    <listOfModifiers/>
    <kineticLaw>
     <math xmlns='http://www.w3.org/1998/Math/MathML'>
      <apply>
       <times/>
       <ci>k</ci>
       <ci>X</ci>
      </apply>
     </math>
     <listOfParameters>
      <parameter id='k'
          value='1'/>
     </listOfParameters>
    </kineticLaw>
   </reaction>
  </listOfReactions>
 </model>
</sbml>

Here is the outputfile.

# Model Name:    enzyme
#
# Creation Time: 5-September-2003 10:15:00.426344
# User:          pikachu
# Machine:       mac00202075536
# System:        PowerPC PowerMac MacOSX
# Generated by MathSBML 2.1.4 (5 Sept 2003)
# 
# Differential Equations
# 
enzyme_A'=-1.*enzyme_A*enzyme_B+1.*enzyme_X
enzyme_B'=-1.*enzyme_A*enzyme_B+2.*enzyme_X
enzyme_C'=1.*enzyme_X
enzyme_X'=1.*enzyme_A*enzyme_B-2.*enzyme_X
# 
# 
# Parameters
# 
par enzyme_R1_a=1.
par enzyme_R1_d=1.
par enzyme_R2_k=1.
# 
# 
# Initial Conditions
# 
init enzyme_A=1.
init enzyme_B=0.999
init enzyme_X=0.001
init enzyme_C=0
# 
done