Index: chrome/tools/profile_reset/jtl_parser.cc |
diff --git a/chrome/tools/profile_reset/jtl_parser.cc b/chrome/tools/profile_reset/jtl_parser.cc |
deleted file mode 100644 |
index c1d9c157b956d3d9b2e68b2ba0ea41f42ef2a9f3..0000000000000000000000000000000000000000 |
--- a/chrome/tools/profile_reset/jtl_parser.cc |
+++ /dev/null |
@@ -1,167 +0,0 @@ |
-// 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(); |
-} |