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*) Tool to find out the percentage of letters in a text. First step to build a tool which detects the language a text is written in.

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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4010 6c8d7289-2bf4-0310-a012-ef5d649a1542
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low012 18 years ago
parent 3ee9a26ef2
commit 33e2423bde
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source/de/anomic/language/languageDataExtractor.java
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// languageDataExtractor.java
// -----------------------
// part of YaCy
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
//
// This File is contributed by Marc Nause
//
// $LastChangedDate: 2007-07-29 $
// $LastChangedRevision: $
// $LastChangedBy: low012 $
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
// This program creates a file with information about the percentage
// in which letters are included in a text.
//
// The program can be started with the following arguments:
//
// input=filename name of the file the text is stored in
// output=filename name of the file the data will be stored in
// name=langugaename name of the language the text is written in
// name=code code of the language the text is written in (e.g. en-GB)
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
public class languageDataExtractor {
public static void main (String[] args) {
BufferedReader inputFile = null;
BufferedWriter outputFile = null;
char key = 'x';
Float fValue = new Float(0);
HashMap map = new HashMap();
int quantity = 0;
Iterator mapiter;
String code = "";
String file = "";
String input = "";
String line = "";
String name = "";
String output = "";
String sKey = "";
//Program started with arguments 'input' or 'output'?
if (args.length <= 4) {
for(int i=0;i<args.length;i++){
String temp = args[i];
if (temp.startsWith("input=")) {
input = temp.substring(6);
} else if (temp.startsWith("output=")) {
output = temp.substring(7);
} else if (temp.startsWith("name=")) {
name = temp.substring(5);
} else if (temp.startsWith("code=")) {
code = temp.substring(5);
}
}
}
//Ask user if arguments were not used when starting program.
if ((input == "") || (output == "") || (name == "") || (code == "")) {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
try {
if(input == "") {
System.out.print("Name of file text is to be read from: ");
input = in.readLine();
}
if(name == "") {
System.out.print("Name of the language the text is written in: ");
name = in.readLine();
}
if(code == "") {
System.out.print("Code of the language the text is writen in (e.g. en-GB): ");
code = in.readLine();
}
if(output == "") {
System.out.print("Name of file data is to be written to: ");
output = in.readLine();
}
}
catch (IOException e) {
System.out.println(e);
System.out.println("Program aborted!");
}
}
//Trying to open input file.
try {
inputFile = new BufferedReader(new InputStreamReader(new FileInputStream(input), "UTF8"));
}
catch (IOException e) {
System.out.println("Error openinging file "+input);
System.out.println("Program aborted! No data has been written!");
System.exit(1);
}
//Trying to read from input file and put quantity of letters into map.
try {
while ((line = inputFile.readLine()) != null) {
for(int i=0;i<line.length();i++){
key = line.charAt(i);
if(Character.isLetter(key)){
key = Character.toLowerCase(key);
sKey = "" + key;
if (map.containsKey(sKey)) {
fValue = new Float(Float.parseFloat(map.get(sKey).toString()) + 1);
}
else {
fValue = new Float(1);
}
map.put(sKey, fValue);
quantity++;
}
}
}
}
catch (IOException e) {
System.out.println("Error reading file "+input);
System.out.println("Program aborted! No data has been written!");
System.exit(1);
}
//Creating content for file.
file = "<language name=\""+name+"\" code=\""+code+"\">\n";
mapiter = map.keySet().iterator();
while(mapiter.hasNext()){
key = mapiter.next().toString().charAt(0);
sKey = "" + key;
file += "\n <letter>\n <name>"+key+"</name>\n <quantity>"+(Float.parseFloat(map.get(sKey).toString())/quantity*100)+"</quantity>\n <letter>\n";
}
file += "\n</language>";
//Writing file.
try {
outputFile = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(output), "UTF8"));
outputFile.write(file);
outputFile.close();
}
catch (IOException e) {
System.out.println("Error writing file "+input);
System.out.println("Program aborted! No data has been written!");
System.exit(1);
}
}
}
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