Handle single plus and minus signs better.

This resolves #206.

diff --git a/src/main/java/net/pterodactylus/sone/web/SearchPage.java b/src/main/java/net/pterodactylus/sone/web/SearchPage.java
index d50a254..2a1c1b0 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/web/SearchPage.java
+++ b/src/main/java/net/pterodactylus/sone/web/SearchPage.java
@@ -175,11 +175,20 @@ public class SearchPage extends SoneTemplatePage {
                List<Phrase> phrases = new ArrayList<Phrase>();
                for (String phrase : parsedPhrases) {
                        if (phrase.startsWith("+")) {
-                               phrases.add(new Phrase(phrase.substring(1), Phrase.Optionality.REQUIRED));
+                               if (phrase.length() > 1) {
+                                       phrases.add(new Phrase(phrase.substring(1), Phrase.Optionality.REQUIRED));
+                               } else {
+                                       phrases.add(new Phrase("+", Phrase.Optionality.OPTIONAL));
+                               }
                        } else if (phrase.startsWith("-")) {
-                               phrases.add(new Phrase(phrase.substring(1), Phrase.Optionality.FORBIDDEN));
+                               if (phrase.length() > 1) {
+                                       phrases.add(new Phrase(phrase.substring(1), Phrase.Optionality.FORBIDDEN));
+                               } else {
+                                       phrases.add(new Phrase("-", Phrase.Optionality.OPTIONAL));
+                               }
+                       } else {
+                               phrases.add(new Phrase(phrase, Phrase.Optionality.OPTIONAL));
                        }
-                       phrases.add(new Phrase(phrase, Phrase.Optionality.OPTIONAL));
                }
                return phrases;
        }