[PATCH] Backend: WST parser. Detect ranges of years in column-datum

[Wald Commits]

# HG changeset patch
# User Sascha L. Teichmann <teichmann at intevation.de>
# Date 1372440286 -7200
# Node ID b2eab164a4415cc119fa64e62a5705a7754aef8f
# Parent  1c68d4b2a1c0ba258cc7306068e12aa4e14768c2
Backend: WST parser. Detect ranges of years in column-datum

diff -r 1c68d4b2a1c0 -r b2eab164a441 backend/src/main/java/org/dive4elements/river/importer/parsers/WstParser.java
--- a/backend/src/main/java/org/dive4elements/river/importer/parsers/WstParser.java	Fri Jun 28 17:47:27 2013 +0200
+++ b/backend/src/main/java/org/dive4elements/river/importer/parsers/WstParser.java	Fri Jun 28 19:24:46 2013 +0200
@@ -61,6 +61,9 @@
     public static final Pattern UNIT =
         Pattern.compile("[^\\[]*\\[([^]]+)\\].*");
 
+    public static final Pattern YEAR_INTERVAL =
+        Pattern.compile("(\\d{4})\\s*[-/]\\s*(\\d{4})");
+
     public static final double INTERVAL_GAP = 0.00001d;
 
     protected ImportWst wst;
@@ -84,6 +87,13 @@
 
     public static ImportTimeInterval guessDate(String string) {
         try {
+            Matcher m = YEAR_INTERVAL.matcher(string);
+            if (m.matches()) {
+                return new ImportTimeInterval(
+                    DateGuesser.guessDate(m.group(1)),
+                    DateGuesser.guessDate(m.group(2)));
+            }
+
             return new ImportTimeInterval(
                 DateGuesser.guessDate(string));
         }