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https://github.com/gbdev/rgbds.git
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66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
#ifndef RGBDS_ASM_LEXER_H
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#define RGBDS_ASM_LEXER_H
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#include <stdio.h>
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#include "types.h"
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#define LEXHASHSIZE (1 << 11)
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#define MAXSTRLEN 255
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struct sLexInitString {
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char *tzName;
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ULONG nToken;
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};
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struct sLexFloat {
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ULONG(*Callback) (char *s, ULONG size);
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ULONG nToken;
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};
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struct yy_buffer_state {
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char *pBufferRealStart; // actual starting address
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char *pBufferStart; // address where the data is initially written
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// after the "safety margin"
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char *pBuffer;
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ULONG nBufferSize;
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ULONG oAtLineStart;
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};
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enum eLexerState {
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LEX_STATE_NORMAL,
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LEX_STATE_MACROARGS
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};
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#define INITIAL 0
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#define macroarg 3
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typedef struct yy_buffer_state *YY_BUFFER_STATE;
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extern void yy_set_state(enum eLexerState i);
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extern YY_BUFFER_STATE yy_create_buffer(FILE * f);
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extern YY_BUFFER_STATE yy_scan_bytes(char *mem, ULONG size);
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extern void yy_delete_buffer(YY_BUFFER_STATE);
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extern void yy_switch_to_buffer(YY_BUFFER_STATE);
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extern ULONG lex_FloatAlloc(struct sLexFloat * tok);
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extern void lex_FloatAddRange(ULONG id, UWORD start, UWORD end);
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extern void lex_FloatDeleteRange(ULONG id, UWORD start, UWORD end);
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extern void lex_FloatAddFirstRange(ULONG id, UWORD start, UWORD end);
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extern void lex_FloatDeleteFirstRange(ULONG id, UWORD start, UWORD end);
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extern void lex_FloatAddSecondRange(ULONG id, UWORD start, UWORD end);
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extern void lex_FloatDeleteSecondRange(ULONG id, UWORD start, UWORD end);
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extern void lex_Init(void);
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extern void lex_AddStrings(struct sLexInitString * lex);
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extern void lex_SetBuffer(char *buffer, ULONG len);
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extern ULONG yylex(void);
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extern void yyunput(char c);
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extern void yyunputstr(char *s);
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extern void yyskipbytes(ULONG count);
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extern void yyunputbytes(ULONG count);
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extern YY_BUFFER_STATE pCurrentBuffer;
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extern void upperstring(char *s);
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extern void lowerstring(char *s);
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#endif
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