From f6ebfc504645cd285f8b62b643ead8e38a0f496b Mon Sep 17 00:00:00 2001
From: Lin <1658352587@qq.com>
Date: Fri, 17 Nov 2023 15:12:26 +0000
Subject: [PATCH] update src/lexer/lexical_analyzer.l.

Signed-off-by: Lin <1658352587@qq.com>
---
 src/lexer/lexical_analyzer.l | 57 +++++++++++++++++++++++++++++++++---
 1 file changed, 53 insertions(+), 4 deletions(-)

diff --git a/src/lexer/lexical_analyzer.l b/src/lexer/lexical_analyzer.l
index c6ac08f..427af99 100755
--- a/src/lexer/lexical_analyzer.l
+++ b/src/lexer/lexical_analyzer.l
@@ -21,11 +21,51 @@ int pos_end;
  /****请在此补全所有flex的模式与动作  start******/
  //STUDENT TO DO
 
+ /******** 运算 ********/
+\+ {pos_start=pos_end;pos_end+=strlen(yytext);return ADD;}
+\- {pos_start=pos_end;pos_end+=strlen(yytext);return SUB;}
+\* {pos_start=pos_end;pos_end+=strlen(yytext);return MUL;}
+\/ {pos_start=pos_end;pos_end+=strlen(yytext);return DIV;}
+\< {pos_start=pos_end;pos_end+=strlen(yytext);return LT;}
+\<\= {pos_start=pos_end;pos_end+=strlen(yytext);return LTE;}
+\> {pos_start=pos_end;pos_end+=strlen(yytext);return GT;}
+\>\= {pos_start=pos_end;pos_end+=strlen(yytext);return GTE;}
+\=\= {pos_start=pos_end;pos_end+=strlen(yytext);return EQ;}
+\!\= {pos_start=pos_end;pos_end+=strlen(yytext);return NEQ;}
+\= {pos_start=pos_end;pos_end+=strlen(yytext);return ASSIN;}
+
+ /******** 符号 ********/
+\; {pos_start=pos_end;pos_end+=strlen(yytext);return SEMICOLON;}
+\, {pos_start=pos_end;pos_end+=strlen(yytext);return COMMA;}
+\( {pos_start=pos_end;pos_end+=strlen(yytext);return LPARENTHESE;}
+\) {pos_start=pos_end;pos_end+=strlen(yytext);return RPARENTHESE;}
+\[ {pos_start=pos_end;pos_end+=strlen(yytext);return LBRACKET;}
+\] {pos_start=pos_end;pos_end+=strlen(yytext);return RBRACKET;}
+\{ {pos_start=pos_end;pos_end+=strlen(yytext);return LBRACE;}
+\} {pos_start=pos_end;pos_end+=strlen(yytext);return RBRACE;}
+
+ /******** 关键字 ********/
+else {pos_start=pos_end;pos_end+=strlen(yytext);return ELSE;}
+if {pos_start=pos_end;pos_end+=strlen(yytext);return IF;}
+int {pos_start=pos_end;pos_end+=strlen(yytext);return INT;}
+float {pos_start=pos_end;pos_end+=strlen(yytext);return FLOAT;}
+return {pos_start=pos_end;pos_end+=strlen(yytext);return RETURN;}
+void {pos_start=pos_end;pos_end+=strlen(yytext);return VOID;}
+while {pos_start=pos_end;pos_end+=strlen(yytext);return WHILE;}
+
+ /******** ID和NUM ********/
+[a-zA-Z]+ {pos_start=pos_end;pos_end+=strlen(yytext);return IDENTIFIER;}
+[0-9]+ {pos_start=pos_end;pos_end+=strlen(yytext);return INTEGER;}
+[0-9]+\.|[0-9]+\.[0-9]+ {pos_start=pos_end;pos_end+=strlen(yytext);return FLOATPOINT;}
+\[\] {pos_start=pos_end;pos_end+=strlen(yytext);return ARRAY;}
+[a-zA-Z] {pos_start=pos_end;pos_end+=strlen(yytext);return LETTER;}
+
+ /******** others ********/
+[\n]+ {pos_start = 1;pos_end = 1;lines+=strlen(yytext);return EOL;}
+\/\*([^\*]|(\*)*[^\*\/])*(\*)*\*\/ {return COMMENT;}
+[ \f\n\r\t\v] {pos_start = pos_end;pos_end+=strlen(yytext);return BLANK;}
 . {return ERROR;}
 
-
-
-
  /****请在此补全所有flex的模式与动作  end******/
 %%
 /****************C代码 start*************/
@@ -51,7 +91,16 @@ void analyzer(char* input_file, Token_Node* token_stream){
     while(token = yylex()){
         switch(token){
             case COMMENT:
-                //STUDENT TO DO
+		//STUDENT TO DO
+		for(int i = 0;i < strlen(yytext);i++)
+		{
+		     pos_end++;
+		     if( yytext[i] == '\n' )
+		     {
+		 	lines += 1;pos_end = 1;
+		     }
+	        }
+	        break;
             case BLANK:
                 //STUDENT TO DO
                 break;
-- 
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