Eliminate all code related to the AutomaticProfileResetter.

chrome/tools/profile_reset/jtl_parser.cc

-// Copyright 2013 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 "chrome/tools/profile_reset/jtl_parser.h"
-
-#include <algorithm>
-
-#include "base/logging.h"
-#include "third_party/re2/re2/re2.h"
-
-namespace {
-
-// RegEx that matches the first line of a text. Will throw away any potential
-// double-slash-introduced comments and the potential trailing EOL character.
-// Note: will fail in case the first line contains an unmatched double-quote
-// outside of comments.
-const char kSingleLineWithMaybeCommentsRE[] =
-    // Non-greedily match and capture sequences of 1.) string literals inside
-    // correctly matched double-quotes, or 2.) any other character.
-    "^((?:\"[^\"\\n]*\"|[^\"\\n])*?)"
-    // Greedily match and throw away the potential comment.
-    "(?://.*)?"
-    // Match and throw away EOL, or match end-of-string.
-    "(?:\n|$)";
-
-// RegEx to match either a double-quote-enclosed string literal or a whitespace.
-// Applied repeatedly and without overlapping, can be used to remove whitespace
-// outside of string literals.
-const char kRemoveWhitespaceRE[] = "(\"[^\"]*\")|\\s";
-
-// The substitution pattern to use together with the above when replacing. As
-// the whitespace is not back-referenced here, it will get removed.
-const char kRemoveWhitespaceRewrite[] = "\\1";
-
-// Separator to terminate a sentence.
-const char kEndOfSentenceSeparator[] = ";";
-
-// The 'true' Boolean keyword.
-const char kTrueKeyword[] = "true";
-
-// RegEx that matches and captures one argument, which is either a double-quote
-// enclosed string, or a Boolean value. Will throw away a trailing comma.
-const char kSingleArgumentRE[] = "(?:(?:\"([^\"]*)\"|(true|false))(?:,|$))";
-
-// RegEx-es that, when concatenated, will match a single operation, and capture
-// the: operation name, the optional arguments, and the separator that follows.
-const char kOperationNameRE[] = "([[:word:]]+)";
-const char kMaybeArgumentListRE[] =
-    "(?:\\("                    // Opening parenthesis.
-    "((?:\"[^\"]*\"|[^\")])*)"  // Capture: anything inside, quote-aware.
-    "\\))?";                    // Closing parenthesis + everything optional.
-const char kOperationSeparatorRE[] = "(;|\\.)";
-
-}  // namespace
-
-struct JtlParser::ParsingState {
-  explicit ParsingState(const re2::StringPiece& compacted_source)
-      : single_operation_regex(std::string(kOperationNameRE) +
-                               kMaybeArgumentListRE +
-                               kOperationSeparatorRE),
-        single_argument_regex(kSingleArgumentRE),
-        remaining_compacted_source(compacted_source),
-        last_line_number(0) {}
-
-  RE2 single_operation_regex;
-  RE2 single_argument_regex;
-  re2::StringPiece remaining_compacted_source;
-  re2::StringPiece last_context;
-  size_t last_line_number;
-};
-
-JtlParser::JtlParser(const std::string& compacted_source_code,
-                     const std::vector<size_t>& newline_indices)
-    : compacted_source_(compacted_source_code),
-      newline_indices_(newline_indices) {
-  state_.reset(new ParsingState(compacted_source_));
-}
-
-JtlParser::~JtlParser() {}
-
-// static
-bool JtlParser::RemoveCommentsAndAllWhitespace(
-    const std::string& verbose_text,
-    std::string* compacted_text,
-    std::vector<size_t>* newline_indices,
-    size_t* error_line_number) {
-  DCHECK(compacted_text);
-  DCHECK(newline_indices);
-  std::string line;
-  RE2 single_line_regex(kSingleLineWithMaybeCommentsRE);
-  RE2 remove_whitespace_regex(kRemoveWhitespaceRE);
-  re2::StringPiece verbose_text_piece(verbose_text);
-  compacted_text->clear();
-  newline_indices->clear();
-  while (!verbose_text_piece.empty()) {
-    if (!RE2::Consume(&verbose_text_piece, single_line_regex, &line)) {
-      if (error_line_number)
-        *error_line_number = newline_indices->size();
-      return false;
-    }
-    RE2::GlobalReplace(
-        &line, remove_whitespace_regex, kRemoveWhitespaceRewrite);
-    *compacted_text += line;
-    newline_indices->push_back(compacted_text->size());
-  }
-  return true;
-}
-
-bool JtlParser::HasFinished() {
-  return state_->remaining_compacted_source.empty();
-}
-
-bool JtlParser::ParseNextOperation(std::string* name,
-                                   base::ListValue* argument_list,
-                                   bool* ends_sentence) {
-  DCHECK(name);
-  DCHECK(argument_list);
-  DCHECK(ends_sentence);
-
-  state_->last_context = state_->remaining_compacted_source;
-  state_->last_line_number = GetOriginalLineNumber(
-      compacted_source_.size() - state_->remaining_compacted_source.length());
-
-  std::string arguments, separator;
-  if (!RE2::Consume(&state_->remaining_compacted_source,
-                    state_->single_operation_regex,
-                    name,
-                    &arguments,
-                    &separator))
-    return false;
-
-  *ends_sentence = (separator == kEndOfSentenceSeparator);
-  state_->last_context.remove_suffix(state_->remaining_compacted_source.size());
-
-  re2::StringPiece arguments_piece(arguments);
-  std::string string_value, boolean_value;
-  while (!arguments_piece.empty()) {
-    if (!RE2::Consume(&arguments_piece,
-                      state_->single_argument_regex,
-                      &string_value,
-                      &boolean_value))
-      return false;
-
-    if (!boolean_value.empty()) {
-      argument_list->Append(
-          new base::FundamentalValue(boolean_value == kTrueKeyword));
-    } else {
-      // |string_value| might be empty for an empty string
-      argument_list->Append(new base::StringValue(string_value));
-    }
-  }
-  return true;
-}
-
-size_t JtlParser::GetOriginalLineNumber(size_t compacted_index) const {
-  return static_cast<size_t>(std::upper_bound(newline_indices_.begin(),
-                                              newline_indices_.end(),
-                                              compacted_index) -
-                             newline_indices_.begin());
-}
-
-size_t JtlParser::GetLastLineNumber() const { return state_->last_line_number; }
-
-std::string JtlParser::GetLastContext() const {
-  return state_->last_context.ToString();
-}