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// Copyright (c) 2020 Pantor. All rights reserved.
#ifndef INCLUDE_INJA_TOKEN_HPP_
#define INCLUDE_INJA_TOKEN_HPP_
#include <string>
#include "string_view.hpp"
namespace inja {
/*!
* \brief Helper-class for the inja Lexer.
*/
struct Token {
enum class Kind {
Text,
ExpressionOpen, // {{
ExpressionClose, // }}
LineStatementOpen, // ##
LineStatementClose, // \n
StatementOpen, // {%
StatementClose, // %}
CommentOpen, // {#
CommentClose, // #}
Id, // this, this.foo
Number, // 1, 2, -1, 5.2, -5.3
String, // "this"
Plus, // +
Minus, // -
Times, // *
Slash, // /
Percent, // %
Power, // ^
Comma, // ,
Dot, // .
Colon, // :
LeftParen, // (
RightParen, // )
LeftBracket, // [
RightBracket, // ]
LeftBrace, // {
RightBrace, // }
Equal, // ==
NotEqual, // !=
GreaterThan, // >
GreaterEqual, // >=
LessThan, // <
LessEqual, // <=
Unknown,
Eof,
};
Kind kind {Kind::Unknown};
nonstd::string_view text;
explicit constexpr Token() = default;
explicit constexpr Token(Kind kind, nonstd::string_view text) : kind(kind), text(text) {}
std::string describe() const {
switch (kind) {
case Kind::Text:
return "<text>";
case Kind::LineStatementClose:
return "<eol>";
case Kind::Eof:
return "<eof>";
default:
return static_cast<std::string>(text);
}
}
};
} // namespace inja
#endif // INCLUDE_INJA_TOKEN_HPP_
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