#include?“com.h“
Table?table（?Table?tp?int?level）
?{
??int?i;
??Table?newTemp?=?（Table）?malloc（?sizeof（?struct?table?）?）;
??newTemp->previous?=?tp;
??newTemp->level?=?level;?
??for（?i?=?0;?i???{
???newTemp->buckets[i]?=?NULL;
??}
??if?（tp）
???newTemp->all?=?tp->all;
??return?newTemp;
?}

?struct?symbol?*?install（char?*name?Table?*tpp?int?level?int?sclass）
?{
??Table?tp?=?*tpp;
??struct?entry?*p;
??int?len;
??unsigned?h?=?name[0]?&?（HASHSIZE?-?1）;
??if?（level?>?0?&&?tp->level????tp?=?*tpp?=?table（tp?level）;
??currentTable?=?tp;
??p?=?（struct?entry?*）?malloc（?sizeof（?struct?entry?）?）;
??len?=?strlen（?name?）;
??p->sym.name?=?（char?*）?malloc（?len?*?sizeof（?char?）?）;
??strcpy（?p->sym.name?name?）;
??p->sym.scope?=?level;
??p->sym.up?=?tp->all;
??p->sym.sclass?=?sclass;
??tp->all?=?&p->sym;
??p->link?=?tp->buckets[h];
??tp->buckets[h]?=?p;
??return?&p->sym;
?}

?struct?symbol?*?lookup（char?*name?Table?tp）?{
??struct?entry?*p;
??unsigned?h?=?name[0]?&?（HASHSIZE-1）;
??if（?tp?==?NULL?）?return?NULL;
??do
???for?（p?=?tp->buckets[h];?p;?p?=?p->link?）
???{
????if?（?p?!=?NULL?&&?strcmp（name?p->sym.name）?==?0?）
?????return?&p->sym;
???}
??while?（（tp?=?tp->previous）?!=?NULL）;
??return?NULL;
?}

?void?enterscope（）?{
??currentLevel++;
?}
?void?exitscope（）?{
??if?（currentTable->level?==?currentLevel）?{
???Table?tt?=?currentTable;
???currentTable?=?currentTable->previous;
???free（?tt?）;
??}
??--currentLevel;
?}
?Symbol?makeSym（?char?*text?）
?{
??int?len;
??Symbol?temp?=?（Symbol）?malloc（?sizeof（?struct?symbol?）?）;
??len?=?strlen（?text?）;
??temp->name?=?（char?*）?malloc（?len?*?sizeof（?char?）?）;
??strcpy（?temp->name?text?）;
??temp->scope?=?currentLevel;
??return?temp;
?}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????45540??2009-09-10?16:21??compile\c

?????文件???????1782??2009-09-10?01:41??compile\com.c

?????文件???????1976??2009-09-10?01:59??compile\com.h

?????文件????????247??2009-09-10?01:33??compile\common.h

?????文件????????303??2009-09-10?17:14??compile\hello.c

?????文件?????763771??2009-09-09?09:45??compile\Lex&Yacc.pdf

?????文件???????1410??2009-09-10?01:40??compile\lex.l

?????文件??????50222??2009-09-10?16:20??compile\lex.yy.c

?????文件?????????63??2009-09-09?18:22??compile\new?2

?????文件????????679??2009-09-19?12:32??compile\result.txt

?????文件??????33877??2009-09-10?14:14??compile\syntax.y

?????文件??????37101??2009-09-09?12:39??compile\syntax.y~

?????文件?????100362??2009-09-10?16:20??compile\y.tab.c

?????文件???????3078??2009-09-10?16:20??compile\y.tab.h

?????目錄??????????0??2010-01-19?14:06??compile

-----------?---------??----------?-----??----

??????????????1040411????????????????????15