[ui/base;css] adding string template expression replacement

base/strings/string_util_unittest.cc

Index: base/strings/string_util_unittest.cc
diff --git a/base/strings/string_util_unittest.cc b/base/strings/string_util_unittest.cc
index ad7ff247c993c968d12d291a2f94fc93d1d04283..836d4ead76574c037518ab0326423a6a210aad12 100644
--- a/base/strings/string_util_unittest.cc
+++ b/base/strings/string_util_unittest.cc
@@ -883,6 +883,38 @@ TEST(StringUtilTest, EndsWith) {
   EXPECT_TRUE(EndsWith(string16(), string16(), true));
 }
 
+TEST(StringUtilTest, StdStringReplaceStringPlaceholdersWithMap) {
+  std::map<std::string, std::string> subst;
+  subst.insert(std::pair<std::string, std::string>("one", "9a"));
+  subst.insert(std::pair<std::string, std::string>("b", "8b"));
+  subst.insert(std::pair<std::string, std::string>("cc", "7c"));
+  subst.insert(std::pair<std::string, std::string>("four", "6d"));
+  subst.insert(
+      std::pair<std::string, std::string>("very long with spaces", "5e"));
+  subst.insert(std::pair<std::string, std::string>("", "4f"));
+  subst.insert(std::pair<std::string, std::string>("&", "3g"));
+  subst.insert(std::pair<std::string, std::string>("$", "2h"));
+  subst.insert(std::pair<std::string, std::string>("$$", "1i"));
+
+  std::string formatted = ReplaceStringPlaceholders(
+      "${one}a,${b}b,${cc}c,${four}d,${very long with "
+      "spaces}e,${}f,${&}g,${$}h,${$$}i",
+      subst);
+
+  EXPECT_EQ(formatted, "9aa,8bb,7cc,6dd,5ee,4ff,3gg,2hh,1ii");
+}
+
+TEST(StringUtilTest, ReplaceStringPlaceholdersConsecutiveDollarSignsWithMap) {
+  std::map<std::string, std::string> subst;
+  subst.insert(std::pair<std::string, std::string>("a", "9a"));
+  subst.insert(std::pair<std::string, std::string>("b", "8b"));
+  subst.insert(std::pair<std::string, std::string>("c", "7c"));
+  EXPECT_EQ(ReplaceStringPlaceholders("$${a} $$${b} $$$${c} $$", subst),
+            "${a} $${b} $$${c} $");

[Dan Beam, 2015/07/07 02:23:31]

please add one like $12 and ensure 12 is left over (or something)

[dschuyler, 2015/07/07 23:05:30]

Done.

+  EXPECT_EQ(ReplaceStringPlaceholders("$$", subst), "$");
+  EXPECT_EQ(ReplaceStringPlaceholders("$", subst), "");
+}
+
 TEST(StringUtilTest, GetStringFWithOffsets) {
   std::vector<string16> subst;
   subst.push_back(ASCIIToUTF16("1"));