#include "stack.h"
#include "queue.h"
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include "editor.cpp"
int exit_flag;
std::string* info_fetch();
int exit_gracefully();
int exit_gracefully()
{
if (history != NULL)
{
delete history;
}
if (tmp != NULL)
{
delete tmp;
}
return 0;
}
std::string* info_fetch()
{
char buffer_[128];
fgets(buffer_, 128, stdin);
for (int i = 0; i < 128; i++)
{
if (buffer_[i] == '\n')
{
buffer_[i] = '\0';
}
}
if (buffer_[0] == '\0')
{
return NULL;
}
std::string* buffer = new std::string(buffer_);
return buffer;
}
void int_handle(int sig)
{
if (sig == SIGINT)
{
undo();
history->print();
printf("\n");
}
}
void quit_handle(int sig)
{
if (sig == SIGQUIT)
{
if (exit_flag == 0) {
printf("==========記憶體被清理=========\n");
exit_gracefully();
printf("====再按一次 Ctrl+\\ 可以退出====\n");
exit_flag = 1;
}
else {
printf("==========優雅地退出=========\n");
exit(0);
}
}
}
int main(int argc, char* argv[])
{
if (argc != 1) {
printf("Usage: ./main\n");
exit(1);
}
signal(SIGINT, int_handle);
signal(SIGQUIT, quit_handle);
printf("\n===========================\n請依照提示輸入\n按下 Ctrl+c 以回到上一步。\n按下 Ctrl+\\ 以退出\n===========================\n");
printf("請輸入一條指令, 或者輸入 resume 重做\n");
while (true)
{
std::string* buffer = info_fetch();
if (buffer == NULL)
{
continue;
}
if (buffer->compare("resume") == 0)
{
printf("==========重做上一步=========\n");
resume();
continue;
}
if (history == NULL)
{
history = new Stack<std::string>();
}
printf("=========收到操作指令========\n");
history->push(buffer);
}
return 0;
}
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標籤：C語言
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