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/*
* This file is part of the pdftk port to java
*
* Copyright (c) Marc Vinyals 2017-2018
*
* The program is a java port of PDFtk, the PDF Toolkit
* Copyright (c) 2003-2013 Steward and Lee, LLC
*
* 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.
*
* The 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, see <http://www.gnu.org/licenses/>.
*/
package com.gitlab.pdftk_java;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
class LoadableInt {
int ii = -1;
static int BufferInt(String buff, int buff_ii) {
// while( buff[buff_ii] && isspace(buff[buff_ii]) ) { ++buff_ii; }
Pattern p = Pattern.compile("\\s?(\\d+).*"); // one or no spaces before data
Matcher m = p.matcher(buff.substring(buff_ii));
if (m.matches()) {
return Integer.parseInt(m.group(1));
} else {
return 0;
}
}
boolean LoadInt(String buff, String label) {
int label_len = label.length();
if (buff.startsWith(label)) {
if (ii < 0) { // uninitialized ints are -1
ii = BufferInt(buff, label_len);
} else { // warning
System.err.println(
"pdftk Warning: "
+ label
+ " ("
+ ii
+ ") not empty when reading new "
+ label
+ " ("
+ BufferInt(buff, label_len)
+ ") -- skipping newer item");
}
return true;
}
return false;
}
LoadableInt(int ii) {
this.ii = ii;
}
public String toString() {
return Integer.toString(ii);
}
}
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