[MD settings] i18n template replacements in shared HTML resources

ui/base/template_expressions.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/template_expressions.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
+#include "base/values.h"
 #include "net/base/escape.h"
 
 namespace {
 const char kLeader[] = "$i18n";
 const size_t kLeaderSize = arraysize(kLeader) - 1;
 const char kKeyOpen = '{';
 const char kKeyClose = '}';
 }  // namespace
 
 namespace ui {
 
+void TemplateReplacementsFromDictionaryValue(
+    const base::DictionaryValue& dictionary,
+    TemplateReplacements* replacements) {
+  for (base::DictionaryValue::Iterator it(dictionary); !it.IsAtEnd();
+       it.Advance()) {
+    if (it.value().IsType(base::Value::Type::STRING)) {

[Dan Beam, 2017/01/04 22:41:51]

might be worth writing a small test for this (but it's basically dead simple, so
whatevs)

[dschuyler, 2017/01/04 23:18:29]

Acknowledged.

+      std::string str_value;
+      if (it.value().GetAsString(&str_value))
+        (*replacements)[it.key()] = str_value;
+    }
+  }
+}
+
 std::string ReplaceTemplateExpressions(
     base::StringPiece source,
     const TemplateReplacements& replacements) {
   std::string formatted;
   const size_t kValueLengthGuess = 16;
   formatted.reserve(source.length() + replacements.size() * kValueLengthGuess);
   // Two position markers are used as cursors through the |source|.
   // The |current_pos| will follow behind |next_pos|.
   size_t current_pos = 0;
   while (true) {
@@ skipping 37 matching lines @@
     }
 
     formatted.append(replacement);
 
     current_pos = key_end + sizeof(kKeyClose);
   }
   return formatted;
 }
 
 }  // namespace ui