# HG changeset patch
# User nobuyasu
# Date 1296443244 -32400
# Node ID 80a0c0eb67e0e5320d34081b91be226890e7054f
# Parent  60596de1cb2cb3cedb423ca9d585df9871be0d30
while

diff -r 60596de1cb2c -r 80a0c0eb67e0 read.c
--- a/read.c	Mon Jan 31 03:50:41 2011 +0900
+++ b/read.c	Mon Jan 31 12:07:24 2011 +0900
@@ -6,7 +6,6 @@
 
 int grep(char* string, char* pattern);
 
-
 int main(int argc, char **argv)
 {
   FILE *fp;
@@ -14,7 +13,6 @@
   char *filename;
   char *pattern;
 
-  
   if(argc > 2) {
     pattern = argv[1];
     filename = argv[2];
@@ -30,7 +28,8 @@
 
   while( (fgets(string, MAX_LEN - 1, fp)) != NULL){
     string[strlen(string) - 1] = '\0';
-    grep(string, pattern);
+    if(grep(pattern, string ))
+      puts(string);
   }
 
   fclose(fp);
@@ -38,16 +37,19 @@
   return 0;
 }
 
-int grep(char* string, char* pattern)
+
+int grep(char* pattern, char* string)
 {
+  char *pattern_;
   char *str_;
-  char *pattern_;
+
   do{
-    str_ = string;
-    pattern_ = pattern;
-  }while(*pattern_++ == *str_++);
-  if(*pattern_ == '\0')
-    return 1;
-  while(*++string != '\0'){}
-  return 0;
+  pattern_ = pattern;
+  str_ = string;
+  while(*pattern_++ == *str_++)
+    if(*pattern_ == '\0')
+      return 1;
+  }while(*++string != '\0');
+  if(*str_ == '\0')
+    return 0;
 }
diff -r 60596de1cb2c -r 80a0c0eb67e0 test.txt
--- a/test.txt	Mon Jan 31 03:50:41 2011 +0900
+++ b/test.txt	Mon Jan 31 12:07:24 2011 +0900
@@ -1,7 +1,5 @@
-iuisdufi
-
+aiuisdufi
 
 ababcifuiasdufiasd
 
-
 asdfiuasdoifj