From f23f56057fa207b937d6bb537740d994fc1bb2a6 Mon Sep 17 00:00:00 2001
From: huiwen-yayaya <2926371624@qq.com>
Date: Sat, 9 Dec 2023 15:19:02 +0000
Subject: [PATCH] update src/lexer/lexical_analyzer.l.

Signed-off-by: huiwen-yayaya <2926371624@qq.com>
---
 src/lexer/lexical_analyzer.l | 77 ++++++++++++++++++++++++++++++++----
 1 file changed, 70 insertions(+), 7 deletions(-)

diff --git a/src/lexer/lexical_analyzer.l b/src/lexer/lexical_analyzer.l
index c6ac08f..210896a 100755
--- a/src/lexer/lexical_analyzer.l
+++ b/src/lexer/lexical_analyzer.l
@@ -20,11 +20,48 @@ int pos_end;
  /******************TODO*********************/
  /****请在此补全所有flex的模式与动作  start******/
  //STUDENT TO DO
-
-. {return ERROR;}
-
-
-
+ 
+\+ {pos_start=pos_end;pos_end=pos_start+1;return ADD;}
+\- {pos_start=pos_end;pos_end=pos_start+1;return SUB;}
+\* {pos_start=pos_end;pos_end=pos_start+1;return MUL;}
+\/ {pos_start=pos_end;pos_end=pos_start+1;return DIV;}
+\< {pos_start=pos_end;pos_end=pos_start+1;return LT;}
+"<=" {pos_start=pos_end;pos_end=pos_start+2;return LTE;}
+\> {pos_start=pos_end;pos_end=pos_start+1;return GT;}
+">=" {pos_start=pos_end;pos_end=pos_start+2;return GTE;}
+"==" {pos_start=pos_end;pos_end=pos_start+2;return EQ;}
+"!=" {pos_start=pos_end;pos_end=pos_start+2;return NEQ;}
+\= {pos_start=pos_end;pos_end=pos_start+1;return ASSIN;}
+
+\; {pos_start=pos_end;pos_end=pos_start+1;return SEMICOLON;}
+\, {pos_start=pos_end;pos_end=pos_start+1;return COMMA;}
+\( {pos_start=pos_end;pos_end=pos_start+1;return LPARENTHESE;}
+\) {pos_start=pos_end;pos_end=pos_start+1;return RPARENTHESE;}
+\[ {pos_start=pos_end;pos_end=pos_start+1;return LBRACKET;}
+\] {pos_start=pos_end;pos_end=pos_start+1;return RBRACKET;}
+\{ {pos_start=pos_end;pos_end=pos_start+1;return LBRACE;}
+\} {pos_start=pos_end;pos_end=pos_start+1;return RBRACE;}
+
+else {pos_start=pos_end;pos_end=pos_start+4;return ELSE;}
+if {pos_start=pos_end;pos_end=pos_start+2;return IF;}
+int {pos_start=pos_end;pos_end=pos_start+3;return INT;}
+float {pos_start=pos_end;pos_end=pos_start+5;return FLOAT;}
+return {pos_start=pos_end;pos_end=pos_start+6;return RETURN;}
+void {pos_start=pos_end;pos_end=pos_start+4;return VOID;}
+while {pos_start=pos_end;pos_end=pos_start+5;return WHILE;}
+
+[a-zA-Z]+ {pos_start=pos_end;pos_end=pos_start+strlen(yytext);return IDENTIFIER;}
+[0-9]+ {pos_start=pos_end;pos_end=pos_start+strlen(yytext);return INTEGER;}
+[0-9]*\.[0-9]+ {pos_start=pos_end;pos_end=pos_start+strlen(yytext);return FLOATPOINT;}
+"[]" {pos_start=pos_end;pos_end=pos_start+2;return ARRAY;}
+[a-zA-Z] {pos_start=pos_end;pos_end=pos_start+1;return LETTER;}
+[0-9]+\. {pos_start=pos_end;pos_end=pos_start+strlen(yytext);return FLOATPOINT;}
+
+\n {return EOL;}
+\/\*([^\*]|(\*)*[^\*\/])*(\*)*\*\/ {return COMMENT;}
+" " {return BLANK;}
+\t {return BLANK;}
+. {pos_start=pos_end;pos_end=pos_start+strlen(yytext);return ERROR;}
 
  /****请在此补全所有flex的模式与动作  end******/
 %%
@@ -52,12 +89,38 @@ void analyzer(char* input_file, Token_Node* token_stream){
         switch(token){
             case COMMENT:
                 //STUDENT TO DO
+                {
+                pos_start=pos_end;
+                pos_end=pos_start+2;
+                int i=2;
+      			while(yytext[i]!='*' || yytext[i+1]!='/')
+      			{  			
+      				if(yytext[i]=='\n')
+      				{
+						lines=lines+1;
+						pos_end=1;
+					}
+					else
+						pos_end=pos_end+1;
+					i=i+1;
+				}
+				pos_end=pos_end+2;
+				break;
+               }
             case BLANK:
                 //STUDENT TO DO
-                break;
+                {
+                	pos_start=pos_end;
+                	pos_end=pos_start+1;
+                	break;
+                }
             case EOL:
                 //STUDENT TO DO
-                break;
+                {
+                	lines+=1;
+                	pos_end=1;
+                	break;
+                }
             case ERROR:
                 printf("[ERR]: unable to analysize %s at %d line, from %d to %d\n", yytext, lines, pos_start, pos_end);
             default :
-- 
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