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