highlight.h

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/*
 * Copyright 2026 The A11 Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef A11_FLOW_HIGHLIGHT_H_
#define A11_FLOW_HIGHLIGHT_H_
 
#include <string_view>
#include <vector>
 
#include <absl/types/span.h>
 
#include "a11/flow/token.h"
 
namespace a11::flow {
 
enum class SemanticKind {
  kComment,
  kString,
  kNumber,
  kDuration,
  kDeclarationKeyword,
  kStatementKeyword,
  kModifierKeyword,
  kStage,
  kBuiltin,
  kType,
  kStatusCode,
  kLogLevel,
  kConstant,
  kWordOperator,
  kFlowName,
  kActionName,
  kNodeMapName,
  kMember,
  kPortName,
  kIdentifier,
  kFlowOperator,
  kOperator,
  kBrace,
  kParenthesis,
  kBracket,
  kPunctuation,
  kBad,
};
 
struct SemanticToken {
  SemanticKind kind = SemanticKind::kIdentifier;
  size_t start = 0;
  size_t end = 0;
  int line = 1;
  int column = 1;
};
 
std::string_view SemanticKindName(SemanticKind kind);
 
SemanticKind SemanticKindFromName(std::string_view name);
 
std::vector<SemanticToken> Highlight(absl::Span<const Token> tokens);
 
void RefinePorts(std::string_view source, std::vector<SemanticToken>& semantic);
 
}  // namespace a11::flow
 
#endif  // A11_FLOW_HIGHLIGHT_H_