From 0b1623d07db963ecf3789aba7163321812cba88e Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Thu, 18 Feb 2021 07:55:39 -0500
Subject: Add QUtil::path_basename

---
 libqpdf/QUtil.cc | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'libqpdf')

diff --git a/libqpdf/QUtil.cc b/libqpdf/QUtil.cc
index a3fa94f4..17b163f5 100644
--- a/libqpdf/QUtil.cc
+++ b/libqpdf/QUtil.cc
@@ -663,6 +663,37 @@ QUtil::file_provider(std::string const& filename)
     };
 }
 
+std::string
+QUtil::path_basename(std::string const& filename)
+{
+#ifdef _WIN32
+    char const* pathsep = "/\\";
+#else
+    char const* pathsep = "/";
+#endif
+    std::string last = filename;
+    auto len = last.length();
+    while (len > 1)
+    {
+        auto pos = last.find_last_of(pathsep);
+        if (pos == len - 1)
+        {
+            last.pop_back();
+            --len;
+        }
+        else if (pos == std::string::npos)
+        {
+            break;
+        }
+        else
+        {
+            last = last.substr(pos + 1);
+            break;
+        }
+    }
+    return last;
+}
+
 char*
 QUtil::copy_string(std::string const& str)
 {
-- 
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