gh-mirror/mikepaul-LuaJIT
1
0
Fork 0
mirror of https://github.com/LuaJIT/LuaJIT.git synced 2025-02-07 23:24:09 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Simplify lexer a bit.

Browse Source
This commit is contained in:
Mike Pall 2010-04-24 20:23:02 +02:00
parent 28a6284642
commit 3a32bbc7cb
1 changed files with 12 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/lj_lex.c
View File

@ -58,14 +58,6 @@ static void save(LexState *ls, int c)
ls->sb.buf[ls->sb.n++] = cast(char, c);
}
static int check_next(LexState *ls, const char *set)
{
if (!strchr(set, ls->current))
return 0;
save_and_next(ls);
return 1;
}
static void inclinenumber(LexState *ls)
{
int old = ls->current;
@ -85,8 +77,12 @@ static void read_numeral(LexState *ls, TValue *tv)
do {
save_and_next(ls);
} while (lj_ctype_isdigit(ls->current) || ls->current == '.');
if (check_next(ls, "Ee")) /* `E'? */
check_next(ls, "+-"); /* optional exponent sign */
if (ls->current == 'e' || ls->current == 'E' ||
ls->current == 'p' || ls->current == 'P') {
save_and_next(ls);
if (ls->current == '+' || ls->current == '-')
save_and_next(ls);
}
while (lj_ctype_isident(ls->current))
save_and_next(ls);
save(ls, '\0');
@ -277,11 +273,13 @@ static int llex(LexState *ls, TValue *tv)
return TK_string;
case '.':
save_and_next(ls);
if (check_next(ls, ".")) {
if (check_next(ls, "."))
if (ls->current == '.') {
next(ls);
if (ls->current == '.') {
next(ls);
return TK_dots; /* ... */
else
return TK_concat; /* .. */
}
return TK_concat; /* .. */
} else if (!lj_ctype_isdigit(ls->current)) {
return '.';
} else {