2010-10-10 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>

	Rewritten util::split()
	* src/util.h
	* test/UtilTest.cc

ChangeLog

@@ -1,3 +1,9 @@
+2010-10-10  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
+
+	Rewritten util::split()
+	* src/util.h
+	* test/UtilTest.cc
+
 2010-10-10  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
 
 	Code cleanup

src/util.h

@@ -338,30 +338,27 @@ OutputIterator split(const std::string& src, OutputIterator out,
                      const std::string& delims, bool doStrip = false,
                      bool allowEmpty = false)
 {
-  std::string::size_type p = 0;
-  while(1) {
-    std::string::size_type np = src.find_first_of(delims, p);
-    if(np == std::string::npos) {
-      std::string term = src.substr(p);
-      if(doStrip) {
-        term = util::strip(term);
-      }
-      if(allowEmpty || !term.empty()) {
-        *out = term;
-        ++out;
-      }
-      break;
+  std::string::const_iterator first = src.begin();
+  std::string::const_iterator last = src.end();
+  for(std::string::const_iterator i = first; i != last;) {
+    std::string::const_iterator j = i;
+    for(; j != last &&
+          std::find(delims.begin(), delims.end(), *j) == delims.end(); ++j);
+    std::string t = doStrip?util::stripIter(i, j):std::string(i, j);
+    if(allowEmpty || !t.empty()) {
+      *out++ = t;
     }
-    std::string term = src.substr(p, np-p);
-    if(doStrip) {
-      term = util::strip(term);
-    }
-    p = np+1;
-    if(allowEmpty || !term.empty()) {
-      *out = term;
-      ++out;
+    i = j;
+    if(j != last) {
+      ++i;
     }
   }
+  if(allowEmpty &&
+     (src.empty() ||
+      std::find(delims.begin(), delims.end(),
+                src[src.size()-1]) != delims.end())) {
+    *out++ = A2STR::NIL;
+  }
   return out;
 }
 

test/UtilTest.cc

@@ -174,41 +174,94 @@ void UtilTest::testDivide() {
 }
 
 void UtilTest::testSplit() {
-  std::vector<std::string> v1;
-  util::split("name1=value1; name2=value2; name3=value3",std::back_inserter(v1),
-              ";", true);
-  CPPUNIT_ASSERT_EQUAL((size_t)3, v1.size());
-  std::vector<std::string>::iterator itr = v1.begin();
-  CPPUNIT_ASSERT_EQUAL(std::string("name1=value1"), *itr++);
-  CPPUNIT_ASSERT_EQUAL(std::string("name2=value2"), *itr++);
-  CPPUNIT_ASSERT_EQUAL(std::string("name3=value3"), *itr++);
+  std::vector<std::string> v;
+  util::split("k1; k2;; k3", std::back_inserter(v), ";", true);
+  CPPUNIT_ASSERT_EQUAL((size_t)3, v.size());
+  std::vector<std::string>::iterator itr = v.begin();
+  CPPUNIT_ASSERT_EQUAL(std::string("k1"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string("k2"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string("k3"), *itr++);
 
-  v1.clear();
+  v.clear();
 
-  util::split("name1=value1; name2=value2; name3=value3",std::back_inserter(v1),
-              ";", false);
-  CPPUNIT_ASSERT_EQUAL((size_t)3, v1.size());
-  itr = v1.begin();
-  CPPUNIT_ASSERT_EQUAL(std::string("name1=value1"), *itr++);
-  CPPUNIT_ASSERT_EQUAL(std::string(" name2=value2"), *itr++);
-  CPPUNIT_ASSERT_EQUAL(std::string(" name3=value3"), *itr++);
+  util::split("k1; k2; k3",
+              std::back_inserter(v), ";");
+  CPPUNIT_ASSERT_EQUAL((size_t)3, v.size());
+  itr = v.begin();
+  CPPUNIT_ASSERT_EQUAL(std::string("k1"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string(" k2"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string(" k3"), *itr++);
 
-  v1.clear();
+  v.clear();
 
-  util::split("k=v", std::back_inserter(v1), ";", false, true);
-  CPPUNIT_ASSERT_EQUAL((size_t)1, v1.size());
-  CPPUNIT_ASSERT_EQUAL(std::string("k=v"), v1[0]);
+  util::split("k=v", std::back_inserter(v), ";", false, true);
+  CPPUNIT_ASSERT_EQUAL((size_t)1, v.size());
+  itr = v.begin();
+  CPPUNIT_ASSERT_EQUAL(std::string("k=v"), *itr++);
 
-  v1.clear();
+  v.clear();
 
-  util::split(" ", std::back_inserter(v1), ";", true, true);
-  CPPUNIT_ASSERT_EQUAL((size_t)1, v1.size());
-  CPPUNIT_ASSERT_EQUAL(std::string(""), v1[0]);
+  util::split(";;k1;;k2;", std::back_inserter(v), ";", false, true);
+  CPPUNIT_ASSERT_EQUAL((size_t)6, v.size());
+  itr = v.begin();
+  CPPUNIT_ASSERT_EQUAL(std::string(""), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string(""), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string("k1"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string(""), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string("k2"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string(""), *itr++);
 
-  v1.clear();
+  v.clear();
 
-  util::split(" ", std::back_inserter(v1), ";", true);
-  CPPUNIT_ASSERT_EQUAL((size_t)0, v1.size());
+  util::split(";;k1;;k2;", std::back_inserter(v), ";");
+  CPPUNIT_ASSERT_EQUAL((size_t)2, v.size());
+  itr = v.begin();
+  CPPUNIT_ASSERT_EQUAL(std::string("k1"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string("k2"), *itr++);
+
+  v.clear();
+
+  util::split("k; ", std::back_inserter(v), ";");
+  CPPUNIT_ASSERT_EQUAL((size_t)2, v.size());
+  itr = v.begin();
+  CPPUNIT_ASSERT_EQUAL(std::string("k"), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string(" "), *itr++);
+
+  v.clear();
+
+  util::split(" ", std::back_inserter(v), ";", true, true);
+  CPPUNIT_ASSERT_EQUAL((size_t)1, v.size());
+  CPPUNIT_ASSERT_EQUAL(std::string(""), v[0]);
+
+  v.clear();
+
+  util::split(" ", std::back_inserter(v), ";", true);
+  CPPUNIT_ASSERT_EQUAL((size_t)0, v.size());
+
+  v.clear();
+
+  util::split(" ", std::back_inserter(v), ";");
+  CPPUNIT_ASSERT_EQUAL((size_t)1, v.size());
+  CPPUNIT_ASSERT_EQUAL(std::string(" "), v[0]);
+
+  v.clear();
+
+  util::split(";", std::back_inserter(v), ";");
+  CPPUNIT_ASSERT_EQUAL((size_t)0, v.size());
+
+  v.clear();
+
+  util::split(";", std::back_inserter(v), ";", false, true);
+  CPPUNIT_ASSERT_EQUAL((size_t)2, v.size());
+  itr = v.begin();
+  CPPUNIT_ASSERT_EQUAL(std::string(""), *itr++);
+  CPPUNIT_ASSERT_EQUAL(std::string(""), *itr++);
+
+  v.clear();
+
+  util::split("", std::back_inserter(v), ";", false, true);
+  CPPUNIT_ASSERT_EQUAL((size_t)1, v.size());
+  CPPUNIT_ASSERT_EQUAL(std::string(""), v[0]);
 }
 
 void UtilTest::testEndsWith() {