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48 lines
1.1 KiB
48 lines
1.1 KiB
/*
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** $Id: llex.h,v 1.4 1997/11/26 18:53:45 roberto Exp roberto $
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** Lexical Analizer
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** See Copyright Notice in lua.h
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*/
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#ifndef llex_h
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#define llex_h
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#include "lobject.h"
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#include "lzio.h"
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#define MAX_IFS 5
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/* "ifstate" keeps the state of each nested $if the lexical is dealing with. */
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struct ifState {
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int elsepart; /* true if its in the $else part */
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int condition; /* true if $if condition is true */
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int skip; /* true if part must be skiped */
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};
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struct textBuff {
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char *text; /* always points to luaM_buffer */
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int tokensize;
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int buffsize;
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};
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typedef struct LexState {
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int current; /* look ahead character */
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struct zio *lex_z; /* input stream */
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int linenumber; /* input line counter */
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struct textBuff textbuff; /* buffer for tokens */
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int linelasttoken; /* line where last token was read */
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int lastline; /* last line wherein a SETLINE was generated */
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struct ifState ifstate[MAX_IFS];
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int iflevel; /* level of nested $if's (for lexical analysis) */
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} LexState;
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void luaX_init (void);
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void luaX_setinput (ZIO *z);
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char *luaX_lasttoken (void);
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#endif
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