csp 2016_4_3 路径解析

public class Main {public static void main(String[] args) {Scanner in = new Scanner(System.in);int p = in.nextInt();String a = in.nextLine();//读取多余换行符String str = in.nextLine();String []s = new String[p];for(int i = 0; i < p; i++ ) {s[i] = in.nextLine();}for(int i = 0; i < p; i++ ) {if(s[i].length() == 0) {//空字符默认为相对路径 但是不能直接输出 因为 可能 输入的当前路径str 也是待正则化的 路径s[i] = str+s[i];}}for(int i = 0; i < p; i++ ) {if(s[i].charAt(0) != '/') {s[i] = str + "/"+s[i];//路径为相对路径时}}int i, pos;for(i = 0; i < p; i++ ) {//处理//while((pos = s[i].indexOf("//")) != -1) {int count = 2;while(pos + count != s[i].length() && s[i].charAt(pos+count) == '/') {count++;}s[i] = s[i].substring(0, pos) + s[i].substring(pos+count-1, s[i].length());}//处理/./while((pos = s[i].indexOf("/./"))!= -1) {s[i] = s[i].substring(0, pos+1) + s[i].substring(pos+3,s[i].length());}//处理/../while((pos = s[i].indexOf("/../"))!= -1) {if(pos == 0) {s[i] = s[i].substring(3, s[i].length());}else {int tPos1 = s[i].lastIndexOf("/", pos-1);s[i] = s[i].substring(0, tPos1) + s[i].substring(pos+3, s[i].length());}}//处理末尾/if(s[i].length() > 1 && s[i].charAt(s[i].length()-1) == '/')s[i] = s[i].substring(0, s[i].length()-1);System.out.println(s[i]);}}}