cdk · johnmay · Mar 7, 2022 · Mar 6, 2022 · Mar 7, 2022
diff --git a/storage/inchi/src/main/java/org/openscience/cdk/inchi/InChIGenerator.java b/storage/inchi/src/main/java/org/openscience/cdk/inchi/InChIGenerator.java
@@ -152,7 +152,7 @@ protected InChIGenerator(IAtomContainer atomContainer, boolean ignoreAromaticBon
      * InChI library requires, then calls the library.
      *
      * @param atomContainer       AtomContainer to generate InChI for.
-     * @param optStr              Space delimited string of options to pass to InChI library.
+     * @param optStr              Space or comma delimited string of options to pass to InChI library.
      *                            Each option may optionally be preceded by a command line
      *                            switch (/ or -).
      * @param ignoreAromaticBonds if aromatic bonds should be treated as bonds of type single and double

diff --git a/storage/inchi/src/main/java/org/openscience/cdk/inchi/InChIGeneratorFactory.java b/storage/inchi/src/main/java/org/openscience/cdk/inchi/InChIGeneratorFactory.java
@@ -145,7 +145,7 @@ public InChIGenerator getInChIGenerator(IAtomContainer container) throws CDKExce
      * Gets InChI generator for CDK IAtomContainer.
      *
      * @param container AtomContainer to generate InChI for.
-     * @param options   String of options for InChI generation.
+     * @param options   Space or comma delimited string of options for InChI generation.
      * @return the InChI generator object
      * @throws CDKException if the generator cannot be instantiated
      */

diff --git a/storage/inchi/src/main/java/org/openscience/cdk/inchi/InChIOptionParser.java b/storage/inchi/src/main/java/org/openscience/cdk/inchi/InChIOptionParser.java
@@ -58,7 +58,7 @@ private void processString(String optstr) {
                     break;
                 case 'W': // timeout
                     pos++;
-                    int next = optstr.indexOf(',', pos);
+                    int next = getIndexOfEither(optstr,',',' ', pos);
                     if (next < 0)
                         next = optstr.length();
                     String substring = optstr.substring(pos, next);
@@ -70,19 +70,39 @@ private void processString(String optstr) {
                     }
                     break;
                 default:
-                    next = optstr.indexOf(',', pos);
+                    next = getIndexOfEither(optstr,',',' ', pos);
                     if (next < 0)
                         next = optstr.length();
                     InchiFlag flag = optMap.get(optstr.substring(pos, next));
                     if (flag != null)
                         options.withFlag(flag);
                     else
-                        logger.warn("Ignore unrecognized InChI flag:" + flag);
+                        logger.warn("Ignore unrecognized InChI flag:" + optstr.substring(pos, next));
                     pos = next;
             }
         }
     }
-
+
+    /**
+     * 
+     * @param str the string to search into.
+     * @param chA a character to search for (Unicode code point).
+     * @param chB a character to search for (Unicode code point).
+     * @param fromIndex the index to start the search from.
+     * @return the index of the first occurrence of either of the characters in the character 
+     * sequence represented by the string object that is greater than or equal to fromIndex, 
+     * or -1 if the character does not occur.
+     */
+    private static int getIndexOfEither(String str, char chA, char chB, int fromIndex) {
+    	int iA = str.indexOf(chA, fromIndex);
+    	int iB = str.indexOf(chB, fromIndex);
+    	if (iA<0)
+    		return iB;
+    	if (iB<0)
+    		return iA;
+    	return Math.min(iA, iB);
+    }
+
     static InchiOptions parseString(String str) {
         if (str == null)
             return null;

diff --git a/storage/inchi/src/test/java/org/openscience/cdk/inchi/InChIGeneratorFactoryTest.java b/storage/inchi/src/test/java/org/openscience/cdk/inchi/InChIGeneratorFactoryTest.java
@@ -41,6 +41,8 @@
 import org.openscience.cdk.templates.TestMoleculeFactory;
 import org.openscience.cdk.tools.manipulator.AtomContainerManipulator;
 
+import io.github.dan2097.jnainchi.InchiFlag;
+import io.github.dan2097.jnainchi.InchiStatus;
 import net.sf.jniinchi.INCHI_OPTION;
 import net.sf.jniinchi.INCHI_RET;
 import org.junit.Assert;
@@ -98,6 +100,35 @@ public void testGetInChIGenerator_IAtomContainer_NullString() throws Exception {
         Assert.assertEquals(gen.getReturnStatus(), INCHI_RET.OKAY);
         Assert.assertEquals("InChI=1S/ClH/h1H", gen.getInchi());
     }
+
+    /**
+     * We must get the same result from using space or comma delimited string
+     */
+    @Test
+    public void testGetInChIGenerator_IAtomContainer_StringSeparators() throws Exception {
+    	SmilesParser sp = new SmilesParser(DefaultChemObjectBuilder.getInstance());
+    	IAtomContainer ac = sp.parseSmiles("C[C@H](Cl)N");
+        String spaceSeparated = "";
+        String commaSeparated = "";
+        String commaAndSpaceSeparated = "";
+        InchiFlag[] opts = new InchiFlag[] {InchiFlag.SNon, InchiFlag.FixedH};
+        for (int i=0; i<opts.length; i++)
+        {
+        	spaceSeparated = spaceSeparated + " " + opts[i];
+        	commaSeparated = commaSeparated + "," + opts[i];
+        	commaAndSpaceSeparated = commaAndSpaceSeparated + ", " + opts[i];
+        }
+
+        InChIGenerator genSpace = InChIGeneratorFactory.getInstance().getInChIGenerator(ac, spaceSeparated);
+        InChIGenerator genComma = InChIGeneratorFactory.getInstance().getInChIGenerator(ac, commaSeparated);
+        InChIGenerator genBoth = InChIGeneratorFactory.getInstance().getInChIGenerator(ac, commaAndSpaceSeparated);
+
+        Assert.assertEquals(genSpace.getStatus(), InchiStatus.SUCCESS);
+        Assert.assertEquals(genComma.getStatus(), InchiStatus.SUCCESS);
+        Assert.assertEquals(genBoth.getStatus(), InchiStatus.SUCCESS);
+        Assert.assertEquals(genBoth.getInchi(),genSpace.getInchi());
+        Assert.assertEquals(genComma.getInchi(),genSpace.getInchi());
+    }
 
     /**
      * Because we are setting an options, we get a non-standard InChI.