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73 lines
1.7 KiB
73 lines
1.7 KiB
#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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