126 lines
2.1 KiB
C
126 lines
2.1 KiB
C
#pragma once
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typedef enum {
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TOKEN_LEFT_PAREN, TOKEN_RIGHT_PAREN,
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TOKEN_LEFT_BRACE, TOKEN_RIGHT_BRACE,
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TOKEN_LEFT_SQUARE, TOKEN_RIGHT_SQUARE,
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TOKEN_COLON,
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TOKEN_COMMA,
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TOKEN_DOT,
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TOKEN_MINUS,
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TOKEN_PLUS,
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TOKEN_SEMICOLON,
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TOKEN_SOLIDUS,
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TOKEN_ASTERISK,
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TOKEN_POW,
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TOKEN_MODULO,
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TOKEN_AT,
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TOKEN_CARET, /* ^ (xor) */
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TOKEN_AMPERSAND, /* & (and) */
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TOKEN_PIPE, /* | (or) */
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TOKEN_TILDE, /* ~ (negate) */
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TOKEN_LEFT_SHIFT, /* << */
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TOKEN_RIGHT_SHIFT,/* >> */
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TOKEN_BANG,
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TOKEN_GREATER,
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TOKEN_LESS,
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/* Comparisons */
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TOKEN_GREATER_EQUAL,
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TOKEN_LESS_EQUAL,
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TOKEN_BANG_EQUAL,
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TOKEN_EQUAL_EQUAL,
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/* Assignments */
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TOKEN_EQUAL,
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TOKEN_LSHIFT_EQUAL, /* <<= */
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TOKEN_RSHIFT_EQUAL, /* >>= */
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TOKEN_PLUS_EQUAL, /* += */
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TOKEN_MINUS_EQUAL, /* -= */
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TOKEN_PLUS_PLUS, /* ++ */
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TOKEN_MINUS_MINUS, /* -- */
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TOKEN_CARET_EQUAL,
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TOKEN_PIPE_EQUAL,
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TOKEN_AMP_EQUAL,
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TOKEN_SOLIDUS_EQUAL,
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TOKEN_ASTERISK_EQUAL,
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TOKEN_POW_EQUAL,
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TOKEN_MODULO_EQUAL,
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TOKEN_STRING,
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TOKEN_BIG_STRING,
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TOKEN_NUMBER,
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/*
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* Everything after this, up to indentation,
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* consists of alphanumerics.
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*/
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TOKEN_IDENTIFIER,
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TOKEN_AND,
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TOKEN_CLASS,
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TOKEN_DEF,
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TOKEN_DEL,
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TOKEN_ELSE,
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TOKEN_FALSE,
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TOKEN_FOR,
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TOKEN_IF,
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TOKEN_IMPORT,
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TOKEN_IN,
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TOKEN_IS,
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TOKEN_LET,
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TOKEN_NONE,
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TOKEN_NOT,
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TOKEN_OR,
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TOKEN_ELIF,
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TOKEN_PASS,
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TOKEN_RETURN,
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TOKEN_SELF,
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TOKEN_SUPER,
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TOKEN_TRUE,
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TOKEN_WHILE,
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TOKEN_TRY,
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TOKEN_EXCEPT,
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TOKEN_RAISE,
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TOKEN_BREAK,
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TOKEN_CONTINUE,
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TOKEN_AS,
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TOKEN_FROM,
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TOKEN_LAMBDA,
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TOKEN_WITH,
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TOKEN_PREFIX_B,
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TOKEN_INDENTATION,
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TOKEN_EOL,
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TOKEN_RETRY,
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TOKEN_ERROR,
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TOKEN_EOF,
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} KrkTokenType;
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typedef struct {
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KrkTokenType type;
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const char * start;
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size_t length;
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size_t line;
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const char * linePtr;
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size_t col;
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size_t literalWidth;
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} KrkToken;
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typedef struct {
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const char * start;
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const char * cur;
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const char * linePtr;
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size_t line;
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int startOfLine;
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int hasUnget;
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KrkToken unget;
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} KrkScanner;
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extern void krk_initScanner(const char * src);
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extern KrkToken krk_scanToken(void);
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extern void krk_ungetToken(KrkToken token);
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extern void krk_rewindScanner(KrkScanner to);
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extern KrkScanner krk_tellScanner(void);
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