Java uses regular expressions to parse the LRC lyrics file

The LRC lyrics is a widely used lyrics file for parsing

Standard format: [minutes: seconds. milliseconds] Lyrics

1 ImportJava.io.BufferedReader;2 ImportJava.io.File;3 ImportJava.io.FileInputStream;4 ImportJava.io.InputStreamReader;5 Importjava.util.ArrayList;6 ImportJava.util.HashMap;7 Importjava.util.List;8 ImportJava.util.Map;9 ImportJava.util.Map.Entry;Ten ImportJava.util.regex.Matcher; One ImportJava.util.regex.Pattern; A  -  Public classTESTLRC { -  the      Public Static voidMain (string[] args) { -String Path = "D:\\A.LRC";//Lyrics file path -TESTLRC LRC =NewTESTLRC (); -List<map<long, string>> list =lrc.parse (path); +         if(List! =NULL) { - PRINTLRC (list); +         } A     } at  -     /** - * Parse the LRC lyrics file -      *  -      * @paramPath - * LRC file path in      * @return -      */ to     PrivateList<map<long, string>>Parse (String path) { +         //Store All lyrics information -List<map<long, string>> list =NewArraylist<map<long, string>>(); the         Try { *             //String encoding = "Utf-8";//character encoding, if it does not match the lyrics file encoding will appear garbled $String encoding = "GBK";Panax NotoginsengFile File =NewFile (path); -             if(File.isfile () && file.exists ()) {//determine if a file exists theInputStreamReader Read =NewInputStreamReader ( +                         NewFileInputStream (file), encoding); ABufferedReader BufferedReader =NewBufferedReader (read); theString regex = "\\[(\\d{1,2}):(\\d{1,2}). (\\d{1,2}) \ \] "; +Pattern pattern = pattern.compile (regex);//Create a Pattern object -String Linestr =NULL;//reads a row of strings at a time $                  while((Linestr = Bufferedreader.readline ())! =NULL) { $Matcher Matcher =Pattern.matcher (LINESTR); -                      while(Matcher.find ()) { -                         //a container for storing current time and text information theMap<long, string> map =NewHashmap<long, string>(); -                         //System.out.println (m.group (0));//example: [02:34.94]Wuyi                         //[02:34.94]----corresponds to---> [minutes: Seconds. milliseconds] theString min = matcher.group (1);//minutes -String sec = Matcher.group (2);//seconds WuString Mill = Matcher.group (3);//milliseconds, and note that this is actually multiplied by ten. -                         LongTime = Getlongtime (min, sec, Mill + "0"); About                         //gets the text content of the current time $String Text =linestr.substring (Matcher.end ()); -                         //System.out.println ("text-->" + text); -Map.put (time, text);//Add to Container - list.add (map); A                     } +                 } the read.close (); -                 returnlist; $}Else { theSYSTEM.OUT.PRINTLN ("The specified file cannot be found:" +path); the             } the}Catch(Exception e) { theSYSTEM.OUT.PRINTLN ("Error reading file contents!")); - e.printstacktrace (); in         } the         return NULL; the     } About  the     /** the * Converts the minutes, seconds, and milliseconds given as a string into a long number in milliseconds the      *  +      * @parammin - * minutes the      * @paramsecBayi * seconds the      * @paramMill the * milliseconds -      * @return -      */ the     Private Longgetlongtime (String min, string sec, String mill) { the         //turn into integral type the         intm =integer.parseint (min); the         ints =Integer.parseint (sec); -         intms =Integer.parseint (mill); the  the         if(S >= 60) { theSystem.out.println ("Warning: An incorrect item has occurred for one second--" + min + ":" + sec + "."94+ mill.substring (0, 2) + "]"); the         } the         //The time in milliseconds that is combined into a long integer the         LongTime = m * * + + S * 1000 +MS;98         returnTime ; About     } - 101     /**102 * Print lyrics information103      */104     Private Static voidPRINTLRC (List<map<long, string>>list) { the         if(List! =NULL&&List.isEmpty ()) {106System.out.println ("No lyrics information!") ");107         }108          for(Map<long, string>map:list) {109              for(Entry<long, string>Entry:map.entrySet ()) { theSystem.out.println ("Time:" + entry.getkey () + "\ T lyrics:"111+Entry.getvalue ()); the             }113         } the     } the}

Java uses regular expressions to parse the LRC lyrics file