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package org.eclipse.cdt.internal.core.index;
/*
* (c) Copyright QNX Software Systems Ltd. 2002.
* All Rights Reserved.
*/
import java.io.BufferedReader;
import java.io.IOException;
/* This structure contains information about the tag file. */
public class CTagsHeader {
final static String TAG_FILE_FORMAT =
"!_TAG_FILE_FORMAT\t2\t/extended format; --format=1 will not append ;\" to lines/";
final static String TAG_FILE_SORTED =
"!_TAG_FILE_SORTED\t0\t/0=unsorted, 1=sorted/";
final static String TAG_PROGRAM_AUTHOR =
"!_TAG_PROGRAM_AUTHOR\tDarren Hiebert\t/dhiebert@users.sourceforge.net/";
final static String TAG_PROGRAM_NAME =
"!_TAG_PROGRAM_NAME\tExuberant Ctags\t//";
final static String TAG_PROGRAM_URL =
"!_TAG_PROGRAM_URL\thttp://ctags.sourceforge.net\t/official site/";
final static String TAG_PROGRAM_VERSION =
"!_TAG_PROGRAM_VERSION\t5.2.3\t//";
/* information about the structure of the tag file */
final String TAGS_PREFIX = "!_";
/* Format of tag file (1 = original, 2 = extended) */
String format;
/* Is the tag file sorted? (0 = unsorted, 1 = sorted) */
String sorted;
/* Information about the program which created this tag file */
/* Name of author of generating program (may be null) */
String author;
/* Name of program (may be null) */
String name;
/* URL of distribution (may be null) */
String url;
/* program version (may be null) */
String version;
void parse (BufferedReader in) throws IOException {
// !_TAG_FILE_FORMAT 2 /extended format; --format=1 will not append ;" to lines/
format = in.readLine();
if (format == null || !format.equals(TAG_FILE_FORMAT)) {
throw new IOException("Wrong Tag Format Header");
}
// !_TAG_FILE_SORTED 0 /0=unsorted, 1=sorted/
sorted = in.readLine();
if (sorted == null || !sorted.equals(TAG_FILE_SORTED)) {
throw new IOException("Wrong Tag Format Header");
}
// !_TAG_PROGRAM_AUTHOR Darren Hiebert /dhiebert@users.sourceforge.net/
author = in.readLine();
if (author == null || !author.equals(TAG_PROGRAM_AUTHOR)) {
throw new IOException("Wrong Tag Format Header");
}
// !_TAG_PROGRAM_NAME Exuberant Ctags //
name = in.readLine();
if (name == null || !name.equals(TAG_PROGRAM_NAME)) {
throw new IOException("Wrong Tag Format Header");
}
// !_TAG_PROGRAM_URL http://ctags.sourceforge.net /official site/
url = in.readLine();
if (url == null || !url.equals(TAG_PROGRAM_URL)) {
throw new IOException("Wrong Tag Format Header");
}
// !_TAG_PROGRAM_VERSION 5.2.3 //
version = in.readLine();
if (version == null || !version.equals(TAG_PROGRAM_VERSION)) {
throw new IOException("Wrong Tag Format Header");
}
}
public static String header() {
return
TAG_FILE_FORMAT + "\n" + TAG_FILE_SORTED + "\n" +
TAG_PROGRAM_AUTHOR + "\n" + TAG_PROGRAM_NAME + "\n" +
TAG_PROGRAM_URL + "\n" + TAG_PROGRAM_VERSION + "\n";
}
}
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