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ctype 'lalpha' includes '_' (as '_' behaves as a letter from the

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point of view of Lua)
This commit is contained in:
Roberto Ierusalimschy 2009-03-11 10:27:32 -03:00
parent 6427c61e7c
commit 6ffcf21367
3 changed files with 11 additions and 9 deletions
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4
lctype.c
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@ -1,5 +1,5 @@
/*
** $Id: lctype.c,v 1.2 2009/02/20 13:11:15 roberto Exp roberto $
** $Id: lctype.c,v 1.3 2009/03/10 17:42:33 roberto Exp roberto $
** 'ctype' functions for Lua
** See Copyright Notice in lua.h
*/
@ -20,7 +20,7 @@ const char luai_ctype_[UCHAR_MAX + 1] = {
0x04, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x05,
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
0x05, 0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x04,
0x05, 0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x05,
0x04, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x05,
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,

8
lctype.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lctype.h,v 1.2 2009/02/20 13:11:15 roberto Exp roberto $
** $Id: lctype.h,v 1.3 2009/03/10 17:42:33 roberto Exp roberto $
** 'ctype' functions for Lua
** See Copyright Notice in lua.h
*/
@ -23,8 +23,10 @@
#define MASK(B) (1 << (B))
#define lisalpha(x) (luai_ctype_[x] & MASK(ALPHABIT))
#define lisalnum(x) (luai_ctype_[x] & (MASK(ALPHABIT) | MASK(DIGITBIT)))
/* 'lalpha' (Lua alphabetic) includes '_' */
#define lislalpha(x) (luai_ctype_[x] & MASK(ALPHABIT))
/* ditto */
#define lislalnum(x) (luai_ctype_[x] & (MASK(ALPHABIT) | MASK(DIGITBIT)))
#define lisdigit(x) (luai_ctype_[x] & MASK(DIGITBIT))
#define lisspace(x) (luai_ctype_[x] & MASK(SPACEBIT))
#define lisprint(x) (luai_ctype_[x] & MASK(PRINTBIT))

8
llex.c
View File

@ -1,5 +1,5 @@
/*
** $Id: llex.c,v 2.30 2009/02/11 18:25:20 roberto Exp roberto $
** $Id: llex.c,v 2.31 2009/02/19 17:18:25 roberto Exp roberto $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@ -206,7 +206,7 @@ static void read_numeral (LexState *ls, SemInfo *seminfo) {
} while (lisdigit(ls->current) || ls->current == '.');
if (check_next(ls, "Ee")) /* `E'? */
check_next(ls, "+-"); /* optional exponent sign */
while (lisalnum(ls->current) || ls->current == '_')
while (lislalnum(ls->current))
save_and_next(ls);
save(ls, '\0');
buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */
@ -408,12 +408,12 @@ static int llex (LexState *ls, SemInfo *seminfo) {
read_numeral(ls, seminfo);
return TK_NUMBER;
}
else if (lisalpha(ls->current) || ls->current == '_') {
else if (lislalpha(ls->current)) {
/* identifier or reserved word */
TString *ts;
do {
save_and_next(ls);
} while (lisalnum(ls->current) || ls->current == '_');
} while (lislalnum(ls->current));
ts = luaX_newstring(ls, luaZ_buffer(ls->buff),
luaZ_bufflen(ls->buff));
if (ts->tsv.reserved > 0) /* reserved word? */