From ef7a4fdf4b7571c5be081b96f41ec74da218775b Mon Sep 17 00:00:00 2001
From: andy <1414772332@qq.com>
Date: Wed, 30 Oct 2024 23:30:35 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=8F=8C=E5=AD=97=E7=AC=A6?=
 =?UTF-8?q?=E7=AC=A6=E5=8F=B7=E7=9A=84=E8=A7=A3=E6=9E=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 main.c          |  4 ++--
 soft/clexical.c | 60 +++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 58 insertions(+), 6 deletions(-)

diff --git a/main.c b/main.c
index 5032add..eca4062 100644
--- a/main.c
+++ b/main.c
@@ -13,8 +13,8 @@
 
 
 const char g_str[ ] = "int main(){\n"
-"int index;\n"
-"while(1){\n"
+"int index=1000;\n"
+"while(index--){\n"
 "printf(index)\n"
 "}\n"
 "}";
diff --git a/soft/clexical.c b/soft/clexical.c
index 7ea0d62..e3d34c9 100644
--- a/soft/clexical.c
+++ b/soft/clexical.c
@@ -23,7 +23,17 @@ typedef enum {
     TOKEN_INT=263,
     TOKEN_VOID=264,
     TOKEN_NAME = 265 ,
-    TOKEN_NUM = 266 ,
+    TOKEN_NUM = 266 ,// 数字
+    TOKEN_INC = 267,// 自增
+    TOKEN_DEC = 268,// 自减
+    TOKEN_EQ = 269,// 相等
+    TOKEN_NEQ = 270,// 不相等
+    TOKEN_LSH = 271,// 左移
+    TOKEN_RSH = 272,// 右移
+    TOKEN_LEQ = 273,// 小于等于
+    TOKEN_GEQ = 274,// 大于等于
+    TOKEN_ELSE = 275,
+    TOKEN_CONTINUE = 276,
 }token_index_def;
 
 
@@ -37,6 +47,7 @@ typedef struct {
 
 const keywork_item_def g_keyword_table[ ] = {
     TOKEN_DEF(if,TOKEN_IF),
+    TOKEN_DEF(else,TOKEN_ELSE),
     TOKEN_DEF(break,TOKEN_IF),
     TOKEN_DEF(while,TOKEN_WHILE),
     TOKEN_DEF(switch,TOKEN_SWITCH),
@@ -45,7 +56,8 @@ const keywork_item_def g_keyword_table[ ] = {
     TOKEN_DEF(char,TOKEN_CHAR),
     TOKEN_DEF(int,TOKEN_INT),
     TOKEN_DEF(void,TOKEN_VOID),
-    {NULL } ,
+    TOKEN_DEF(continue,TOKEN_CONTINUE),
+    {NULL},
 };
 
 
@@ -242,12 +254,10 @@ int lex_analysis(const char *text,int len){
         case '[':
         case ']':
         case '~':
-        case '!':
         case ',':
         case ';':
         case ':':
         {
-            DBG_LOG("enter %c" , lex.current_c);
             lex_save_char(&lex);
             lex.token_buff.token = lex.current_c;
             lex_save_token(&lex);
@@ -274,6 +284,48 @@ int lex_analysis(const char *text,int len){
             }
             break;
         }
+        case '+':{
+            lex_save_char(&lex);
+            lex_get_next(&lex);
+            if(lex.current_c=='+'){
+                lex_save_char(&lex);
+                lex_get_next(&lex);
+                lex.token_buff.token = TOKEN_INC;
+            }else{
+                lex.token_buff.token = lex.current_c;
+            }
+            lex_save_token(&lex);
+            break;
+        }
+        case '-':{
+            lex_save_char(&lex);
+            lex_get_next(&lex);
+            if(lex.current_c=='-'){
+                lex_save_char(&lex);
+                lex_get_next(&lex);
+                lex.token_buff.token = TOKEN_DEC;
+            }else{
+                lex.token_buff.token = lex.current_c;
+            }
+            lex_save_token(&lex);
+            break;
+        }
+        case '!':
+        case '>':
+        case '<':
+        case '=':{
+            lex_save_char(&lex);
+            lex_get_next(&lex);
+            if(lex.current_c=='='){
+                lex_save_char(&lex);
+                lex_get_next(&lex);
+                lex.token_buff.token = TOKEN_EQ;
+            }else{
+                lex.token_buff.token = lex.current_c;
+            }
+            lex_save_token(&lex);
+            break;
+        }
         default:
             if (cislalpha(lex.current_c)) {
                 do {