From 80b1d62bfcea65c59e2160da71dad84b1bd19cef Mon Sep 17 00:00:00 2001
From: "kenton@google.com"
 <kenton@google.com@630680e5-0e50-0410-840e-4b1c322b438d>
Date: Wed, 29 Jul 2009 01:13:20 +0000
Subject: Submit recent changes from internal branch, including "lite mode" for
 C++ and Java.  See CHANGES.txt for more details.

---
 src/google/protobuf/text_format.cc | 64 ++++++++++++++++++++++++++++----------
 1 file changed, 48 insertions(+), 16 deletions(-)

(limited to 'src/google/protobuf/text_format.cc')

diff --git a/src/google/protobuf/text_format.cc b/src/google/protobuf/text_format.cc
index ae88cdff..cf754024 100644
--- a/src/google/protobuf/text_format.cc
+++ b/src/google/protobuf/text_format.cc
@@ -142,6 +142,16 @@ class TextFormat::Parser::ParserImpl {
     }
   }
 
+  bool ParseField(const FieldDescriptor* field, Message* output) {
+    bool suc;
+    if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
+      suc = ConsumeFieldMessage(output, output->GetReflection(), field);
+    } else {
+      suc = ConsumeFieldValue(output, output->GetReflection(), field);
+    }
+    return suc && LookingAtType(io::Tokenizer::TYPE_END);
+  }
+
   void ReportError(int line, int col, const string& message) {
     had_errors_ = true;
     if (error_collector_ == NULL) {
@@ -252,24 +262,9 @@ class TextFormat::Parser::ParserImpl {
 
     // Perform special handling for embedded message types.
     if (field->cpp_type() == FieldDescriptor::CPPTYPE_MESSAGE) {
-      string delimeter;
-
       // ':' is optional here.
       TryConsume(":");
-
-      if (TryConsume("<")) {
-        delimeter = ">";
-      } else {
-        DO(Consume("{"));
-        delimeter = "}";
-      }
-
-      if (field->is_repeated()) {
-        DO(ConsumeMessage(reflection->AddMessage(message, field), delimeter));
-      } else {
-        DO(ConsumeMessage(reflection->MutableMessage(message, field),
-                          delimeter));
-      }
+      DO(ConsumeFieldMessage(message, reflection, field));
     } else {
       DO(Consume(":"));
       DO(ConsumeFieldValue(message, reflection, field));
@@ -278,6 +273,26 @@ class TextFormat::Parser::ParserImpl {
     return true;
   }
 
+  bool ConsumeFieldMessage(Message* message,
+                           const Reflection* reflection,
+                           const FieldDescriptor* field) {
+    string delimeter;
+    if (TryConsume("<")) {
+      delimeter = ">";
+    } else {
+      DO(Consume("{"));
+      delimeter = "}";
+    }
+
+    if (field->is_repeated()) {
+      DO(ConsumeMessage(reflection->AddMessage(message, field), delimeter));
+    } else {
+      DO(ConsumeMessage(reflection->MutableMessage(message, field),
+                        delimeter));
+    }
+    return true;
+  }
+
   bool ConsumeFieldValue(Message* message,
                          const Reflection* reflection,
                          const FieldDescriptor* field) {
@@ -750,6 +765,16 @@ bool TextFormat::Parser::MergeUsingImpl(io::ZeroCopyInputStream* input,
   return true;
 }
 
+bool TextFormat::Parser::ParseFieldValueFromString(
+    const string& input,
+    const FieldDescriptor* field,
+    Message* output) {
+  io::ArrayInputStream input_stream(input.data(), input.size());
+  ParserImpl parser(output->GetDescriptor(), &input_stream, error_collector_,
+                    ParserImpl::ALLOW_SINGULAR_OVERWRITES);
+  return parser.ParseField(field, output);
+}
+
 /* static */ bool TextFormat::Parse(io::ZeroCopyInputStream* input,
                                     Message* output) {
   return Parser().Parse(input, output);
@@ -1008,6 +1033,13 @@ void TextFormat::Printer::PrintFieldValue(
   return Printer().PrintFieldValueToString(message, field, index, output);
 }
 
+/* static */ bool TextFormat::ParseFieldValueFromString(
+    const string& input,
+    const FieldDescriptor* field,
+    Message* message) {
+  return Parser().ParseFieldValueFromString(input, field, message);
+}
+
 // Prints an integer as hex with a fixed number of digits dependent on the
 // integer type.
 template<typename IntType>
-- 
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