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    文件類型: .rar
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    發布日期: 2022-03-10
  • 語言: 其他
  • 標簽: c??語法分析??

資源簡介

c語法分析器,生成程序的語法樹 分析單個文件,不支持預處理, 不解析預處理符號#

資源截圖

代碼片段和文件信息


/*?Original?source?code?by?Compilerware?with?tabs?=?3?*/

#include?“c_main.h“
#include?“c_parser.h“
?? #include?“c_actions.h“

char?sym[200];??//長度200
char?temp[200];


#ifdef?TOKEN_ACTIONS

/////////////////////////////////////////////////////////////////////////////////////////////////////
//?????????????????????????????????????????????????????????????????????????????????????????????????//?
//????error????? ????????????????????????

int???c_token_action::error?(short?t)????????????????????
{
if?(token.end?==?token.start)?//?Illegal?character?
{
token.end++;
return?(t);?//?Return?zero?(t?should?be?zero).
}
//?Do?a?symbol?table?lookup?could?be?a?valid?keyword?or?constant.
return?(lookup?(t));?
}

/////////////////////////////////////////////////////////////////////////////////////////////////////
//?????????????????????????????????????????????????????????????????????????????????????????????????//?
//????lookup???? ????????????????????????

int???c_token_action::lookup?(short?t)?//?Look?for?Symbol.
{
//?Do?a?symbol-table?lookup?for?this?token.?
token.sti?=?add_symbol?(t?token.start?token.end);?
return?(symbol[token.sti].term);?//?Retuen?terminal?symbol?number.?
}

#endif
#ifdef?PARSE_ACTIONS

/////////////////////////////////////////////////////////////////////////////////////////////////////
//?????????????????????????????????????????????????????????????????????????????????????????????????//?
//????goal_?(not?used?for?testing?only) ????????????????????????

short?c_parse_action::goal_?(short?p)?
{
???short?a?=?pact_arg[p]; ??//?Get?first?argument?index.
??????return?(0);
}

/////////////////////////////////////////////////////////////////////////////////////////////////////
//?????????????????????????????????????????????????????????????????????????????????????????????????//?
//????defterm??? ????????????????????????

short?c_parse_action::defterm?(short?p)?
{
???short?i?=?pact_arg[p]; ???//?Get?first?argument?index.
??????short?sti?=?PS?[arg_numb[i]-1].sti;?//?Get?sti?for?first?argument.
??????symbol[sti].term?=?arg_numb?[i+1];??//?Set?term?to?second?argument.
??????return?(0);
}

//????defline??? ????????????????????????
short?c_parse_action::defline?(short?p)?
{
//在此寫行號重置的代碼?it‘s?good
//獲取token
//char*?ls?=?token.start;
//char*?le?=?token.end;
//int?len?=?-1;
//while?(ls? // len++;
// sym[len]?=?*ls;?
// ls++;
//}
//sym[len+1]?=?0;

//char?seps[]???=?“#??\t“;
//char?*token;
//int?cnt?=1;
//int?line_cnt=0;

//token?=?strtok(?sym?seps?);
//while(?token?!=?NULL?){????//While?there?are?tokens?in?“string“
// //printf(?“?%s\n“?token?);????????
// if(cnt?==?1){
// line_cnt?=?atoi(token);??//下一行
// }
// else?if(cnt?==?2){
// strcpy(sym?token);??//預處理行中所指示的文件名
// break;
// }
// token?=?strtok

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

?????文件??????10711??2012-10-17?16:39??c.grm

?????文件???????4549??2013-04-05?15:27??c.lgr

?????文件???????5589??2013-04-05?15:40??c_actions.cpp

?????文件????????716??2013-04-05?15:33??c_actions.h

?????文件??????73440??2013-04-05?15:27??c_lexer.cpp

?????文件???????1415??2013-04-05?15:27??c_lexer.h

?????文件???????6984??2013-04-05?15:51??c_main.cpp

?????文件???????2478??2012-02-02?15:36??c_main.h

?????文件??????98435??2013-04-05?16:02??c_parser.cpp

?????文件??????10467??2013-04-05?15:38??c_parser.h

?????文件???????4690??2013-04-05?16:03??cpr.dsp

?????文件????????529??2013-04-05?15:48??cpr.dsw

?????文件??????58368??2013-04-05?16:03??cpr.ncb

?????文件??????53760??2013-04-05?16:03??cpr.opt

?????文件???????1314??2013-04-05?16:02??cpr.plg

?????文件????????180??2013-04-05?16:08??說明.txt

?????文件?????225349??2013-04-05?16:02??Debug\cpr.exe

?????文件??????14587??2013-04-05?15:56??Debug\Editor.c

?????文件??????63169??2011-10-04?02:00??Debug\test.input.txt

?????目錄??????????0??2013-04-05?16:07??Debug

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

???????????????636730????????????????????20


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