From ff35ca7bd9edde93a8190514a4cfd20af877cb84 Mon Sep 17 00:00:00 2001
From: Joshua Ramon Enslin <joshua@museum-digital.de>
Date: Sat, 3 Oct 2020 16:10:43 +0200
Subject: [PATCH] Enable time splitter to deal with some roman numbers

---
 src/NodaTimeSplitter.php       | 14 +++++++++++++-
 tests/NodaTimeSplitterTest.php | 12 ++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/NodaTimeSplitter.php b/src/NodaTimeSplitter.php
index c79e89f..035af37 100644
--- a/src/NodaTimeSplitter.php
+++ b/src/NodaTimeSplitter.php
@@ -54,6 +54,14 @@ final class NodaTimeSplitter {
         "vor Christus" => "v. Chr.",
     ];
 
+    const STRINGS_TO_CLEAN_START = [
+        "V. "   => "5. ",
+        "IV. "  => "4. ",
+        "III. " => "3. ",
+        "II. "  => "2. ",
+        "I. "   => "1. ",
+    ];
+
     const STOP_STRINGS_GERMAN = [
         "-",
         ",",
@@ -118,6 +126,11 @@ final class NodaTimeSplitter {
         while (strpos($input, " -") !== false) $input = str_replace(" -", "-", $input);
         while (strpos($input, "- ") !== false) $input = str_replace("- ", "-", $input);
         $input = strtr($input, self::STRINGS_TO_CLEAN);
+        foreach (self::STRINGS_TO_CLEAN_START as $toCleanFrom => $toCleanTo) {
+            if (strpos($input, $toCleanFrom) === 0) {
+                $input = str_replace($toCleanFrom, $toCleanTo, $input);
+            }
+        }
         while (strpos($input, "..") !== false) $input = str_replace("..", ".", $input);
 
         return trim($input, ", [](){}");
@@ -752,7 +765,6 @@ final class NodaTimeSplitter {
 
         // 1. Jahrhundert
         if (preg_match("/^[0-9]\.\ (Jh\.|Jahrhundert|sz|század)$/", $datum)) {
-            echo "HI";
             if ($centuryNo = intval(substr($datum, 0, 1))) {
                 $centuryNo--;
                 return [(string)$centuryNo . "01", strval($centuryNo + 1) . "00", "00", "00", $bcBceIndicator, ""];
diff --git a/tests/NodaTimeSplitterTest.php b/tests/NodaTimeSplitterTest.php
index a0c45b5..c287c87 100644
--- a/tests/NodaTimeSplitterTest.php
+++ b/tests/NodaTimeSplitterTest.php
@@ -362,6 +362,18 @@ final class NodaTimeSplitterTest extends TestCase {
         self::assertEquals(NodaTimeSplitter::timePartsToTimeName($output), "1901-2000");
         self::assertEquals(NodaTimeSplitter::timePartsToCountingYear($output), 1951);
 
+        $output = NodaTimeSplitter::attempt_splitting("III. század");
+        self::assertEquals($output, [
+            0 => "201",
+            1 => "300",
+            2 => "00",
+            3 => "00",
+            4 => "+",
+            5 => "",
+        ]);
+        self::assertEquals(NodaTimeSplitter::timePartsToTimeName($output), "201-300 n. Chr.");
+        self::assertEquals(NodaTimeSplitter::timePartsToCountingYear($output), 251);
+
         $output = NodaTimeSplitter::attempt_splitting("20. század");
         self::assertEquals($output, [
             0 => "1901",