kythe.io@v0.0.68-0.20240422202219-7225dbc01741/kythe/cxx/extractor/textproto/textproto_schema.cc (about)

     1  /*
     2   * Copyright 2019 The Kythe Authors. All rights reserved.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *   http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  #include "textproto_schema.h"
    18  
    19  #include "absl/strings/ascii.h"
    20  #include "absl/strings/str_split.h"
    21  #include "absl/strings/string_view.h"
    22  #include "absl/strings/strip.h"
    23  
    24  namespace kythe {
    25  namespace lang_textproto {
    26  
    27  TextprotoSchema ParseTextprotoSchemaComments(absl::string_view textproto) {
    28    TextprotoSchema schema;
    29  
    30    for (absl::string_view line : absl::StrSplit(textproto, '\n')) {
    31      if (absl::ConsumePrefix(&line, "#")) {
    32        line = absl::StripLeadingAsciiWhitespace(line);
    33        if (absl::ConsumePrefix(&line, "proto-file:")) {
    34          schema.proto_file = absl::StripAsciiWhitespace(line);
    35        } else if (absl::ConsumePrefix(&line, "proto-message:")) {
    36          schema.proto_message = absl::StripAsciiWhitespace(line);
    37        } else if (absl::ConsumePrefix(&line, "proto-import:")) {
    38          schema.proto_imports.push_back(absl::StripAsciiWhitespace(line));
    39        }
    40      } else if (line.empty()) {
    41        // Skip blank lines.
    42        continue;
    43      } else {
    44        // Stop searching after the start of actual textproto content.
    45        break;
    46      }
    47    }
    48  
    49    return schema;
    50  }
    51  
    52  }  // namespace lang_textproto
    53  }  // namespace kythe