#453 handle messed up number format

src/UglyToad.PdfPig.Tests/Parser/PageContentParserTests.cs

@@ -6,7 +6,6 @@
     using Logging;
     using PdfPig.Core;
     using PdfPig.Graphics;
-    using PdfPig.Graphics.Core;
     using PdfPig.Graphics.Operations.General;
     using PdfPig.Graphics.Operations.SpecialGraphicsState;
     using PdfPig.Graphics.Operations.TextObjects;
@@ -183,6 +182,30 @@ cm BT 0.0001 Tc 19 0 0 19 0 0 Tm /Tc1 1 Tf (   \(sleep 1; printf ""QUIT\\r\\n""\
             Assert.Equal(@"   (sleep 1; printf ""QUIT\r\n"") | ", text.Text);
         }
 
+        [Fact]
+        public void HandlesWeirdNumber()
+        {
+            // Issue 453
+            const string s = @"/Alpha1
+gs
+0
+0
+0
+rg
+0.00-90
+151555.0
+m
+302399.97
+151555.0
+l";
+
+            var input = StringBytesTestConverter.Convert(s, false);
+
+            var result = parser.Parse(1, input.Bytes, log);
+
+            Assert.Equal(4, result.Count);
+        }
+
         private static string LineEndingsToWhiteSpace(string str)
         {
             return str.Replace("\r\n", " ").Replace('\n', ' ').Replace('\r', ' ');

src/UglyToad.PdfPig.Tokenization/NumericTokenizer.cs

@@ -155,6 +155,12 @@
                     default:
                         if (!decimal.TryParse(str, NumberStyles.Any, CultureInfo.InvariantCulture, out var value))
                         {
+                            if (TryParseInvalidNumber(str, out value))
+                            {
+                                token = new NumericToken(value);
+                                return true;
+                            }
+
                             return false;
                         }
 
@@ -171,5 +177,34 @@
                 return false;
             }
         }
+
+        private static bool TryParseInvalidNumber(string numeric, out decimal result)
+        {
+            result = 0;
+
+            if (!numeric.Contains("-") && !numeric.Contains("+"))
+            {
+                return false;
+            }
+
+            var parts = numeric.Split(new string[] { "+", "-" }, StringSplitOptions.RemoveEmptyEntries);
+
+            if (parts.Length == 0)
+            {
+                return false;
+            }
+
+            foreach (var part in parts)
+            {
+                if (!decimal.TryParse(part, NumberStyles.Any, CultureInfo.InvariantCulture, out var partNumber))
+                {
+                    return false;
+                }
+
+                result += partNumber;
+            }
+
+            return true;
+        }
     }
 }