C 게시판..

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

// debug
#define _ck(x) printf("ck%d\n",x);

#define _LINE 25
#define _COL  80
#define CMD_MAX 50
#define PER_MAX 100
#define PAGE_LF(x) for(int z=1;z<=x;z++) printf("\n")
#define BAR printf("###############################################################################\n")

#define TITLE_NO 50
#define BODY_NO 100
#define USER_NO 50

struct PERSONtag {
 char title[TITLE_NO];
 char body[BODY_NO];
 char user[USER_NO];
 int line;
} person[PER_MAX], *pPER;
int per_no=0;

char back(char *);
char input(char *);
void view();
void write();
void read(int);
void readFile();
void writeFile();
void remove(int);
int search_(int,char *);
int strsearch(char *str1,char *str2);

void main(void)
{
 char cmd[CMD_MAX], *pCMD=cmd;
 char inKey;
 

 readFile();
 while(inKey!='x' && inKey!='X') {
  switch (inKey=back(cmd)) {
   case 'p':
   case 'P':
    view();
    break;
   case 'w':
   case 'W':
    write();
    break;
   case 'm':
   case 'M':
    while (!isdigit(*pCMD) && *pCMD!=0) pCMD++;
    remove(*pCMD-'0');
   case 's':
   case 'S':
    pCMD++;
    if (*pCMD=='t' || *pCMD=='T') {
     pCMD = strchr(pCMD,' ');
     if(search_(1,++pCMD))
      return;
    }
    else if (*pCMD=='u' || *pCMD=='U') {
     pCMD = strchr(pCMD,' ');
     if(search_(2,++pCMD))
      return;
    }
   default :
    if (isdigit(inKey)) {
     if (inKey<=(per_no+'0'))
      read(inKey-'1');
    } else if (inKey!='x' && inKey!='X')
     printf("It's not command\n");
    break;
  }
 }
}

char back(char *in)
{
 view();
 return input(in);
}

char input(char *in)
{
 *in = 0;
 while (*in==10 || *in==0) {
  printf("[input command] ");
  gets(in);
 };

 return *in;
}

void view()
{
 printf("LIST ##########################################################################\n");
 printf("NO%20s %20s\n","title","user");
 if (per_no>0) {
  for (int i=0;i<per_no;i++)
   printf("%d %20s %20s\n",i+1,person[i].title,person[i].user);
 }
 PAGE_LF(_LINE-(per_no+5)); // 4 + command line(1)
 BAR;
 printf("Help(H|h) Write(W|w) Read(NO) reMove(M|m) Search(S|s) View(V|v) eXit(X|x)\n");
}

void write()
{
 char *bd = person[per_no].body;

 printf("Write####\n");
 printf("title : "); scanf("%s",person[per_no].title);
 printf("user : "); scanf("%s",person[per_no].user);
 printf("text : \n");
 person[per_no].line = 0;
 while ((*bd=getchar())!=24) {
  if (*bd==10)
   person[per_no].line++;
  bd++;
 }
 per_no++;
 *bd = 0;
 writeFile();
}

void read(int idx)
{
 BAR;
 printf("title : %s\n",person[idx].title);
 printf("user : %s\n",person[idx].user);
 printf("text : %s\n",person[idx].body);
 PAGE_LF(_LINE-(person[idx].line+3+3)); // 2 + command line(1)
 BAR;
    getchar();
}

void remove(int idx)
{
 if (per_no!=0) per_no--;
 
 if (per_no!=idx) {
  for (int i=idx-1;i<per_no;i++) {
   strcpy(person[i].title,person[i+1].title);
   strcpy(person[i].user,person[i+1].user);
   strcpy(person[i].body,person[i+1].body);
   person[i].line = person[i+1].line;
  }
 }
 writeFile();
}

void readFile()
{
 FILE *fp;

 if (!(fp=fopen("d:\\odete\\study\\board.txt","r")))
  return;

 per_no = fgetc(fp);
 fread((PERSONtag *)person,sizeof(person),1,fp);
 fclose(fp);
}

void writeFile()
{
 FILE *fp;

 if (!(fp=fopen("d:\\odete\\study\\board.txt","w")))
  return;

 fputc(per_no,fp);
 fwrite((PERSONtag *)person,sizeof(person),1,fp);
 fclose(fp);
}

int search_(int sel,char *key)
{
 int sh[PER_MAX];
 char cmd[CMD_MAX];
 int shi=0;
 int i;
 char inKey=0;

 if (sel==1) {
  for (i=0;i<per_no;i++) {
   if (!strsearch(person[i].title,key)) {
    sh[shi] = i;
    shi++;
   }
  }
 } else {
  for (i=0;i<per_no;i++) {
   if (!strsearch(person[i].user,key)) {
    sh[shi] = i;
    shi++;
   }
  }
 }

 while (inKey!='p' && inKey!='P') {
  printf("SEARCH ########################################################################\n");
  printf("NO%20s %20s\n","title","user");
  if (shi>0) {
   for (i=0;i<shi;i++)
    printf("%d %20s %20s\n",sh[i],person[sh[i]].title,person[sh[i]].user);
  }
  PAGE_LF(_LINE-(shi+5)); // 4 + command line(1)
  BAR;
  printf("Help(H|h) Read(NO) Up(P|p) eXit(X|x) \n");
  if (isdigit(inKey=input(cmd))) {
   if (inKey<=(per_no+'0'))
    read(inKey-'1');
  } else if (inKey=='x' || inKey=='X')
   return 1;
  else
   printf("It's not command\n");
 }
 return 0;
}

int strsearch(char *str1,char *str2)
{
 int len1, len2;
 int flag=0;
 
 len1 = strlen(str1);
 len2 = strlen(str2);
 if (len1<len2)
  return 1;

 for(int i=0,j=0;i<len1 && j<len2;i++) {
  if (flag==0) {
   if (*str1++==*str2) {
    flag = 1;
    j++; str2++;
    if (j==len2) return 0;
   }
  } else if (flag==1) {
   if (*str1++==*str2++)
    j++;
    if (j==len2) return 0;
   else flag = 0;
  } 
 }
 return 1;
}