maven 索引文件格式

[cctc_841227]

在maven仓库的index文件夹中nexus-maven-repository-index.gz解压后的文件用记事本打开

  *愖硥    1   (652d6a08fb05dbbb9d8fb8376c51d9678ba60f5d d   0Apache OpenJPA implementation of JSR-317 JPA 2.0 i   !pom|1282233902000|55645|0|0|0|pom m   
1282233902430 n   OpenJPA Parent POM u   3org.apache.openjpa|openjpa-parent|2.1.0-SNAPSHOT|NA    1   (5b1bb9ca32747517bfbbc46d07a7cd533a9de45d d   0Apache OpenJPA implementation of JSR-317 JPA 2.0 i   xml|1282233904000|918|2|2|0|xml m   
1282233904060 n   OpenJPA Parent POM u   9org.apache.openjpa|openjpa-parent|2.1.0-SNAPSHOT|site|xml    1   (77a0d01e4080df1c058f5a664f35faf830dae2d5 c  ?org/apache/openjpa/lib/log/LogFactoryImpl
/org/apache/openjpa/lib/log/Log
/org/apache/openjpa/lib/log/SLF4JLogFactory
/org/apache/openjpa/lib/log/NoneLogFactory
/org/apache/openjpa/lib/log/Log4JLogFactory
/org/apache/openjpa/lib/log/AbstractLog
/org/apache/openjpa/lib/log/MultiLogFactory
/org/apache/openjpa/lib/log/LogFactoryAdapter
/org/apache/openjpa/lib/log/LogOutputStream
/org/apache/openjpa/lib/log/CommonsLogFactory
/org/apache/openjpa/lib/log/LogFactory
/org/apache/openjpa/lib/ant/AbstractTask
/org/apache/openjpa/lib/encryption/EncryptionProvider
/org/apache/openjpa/lib/graph/NodeInfo
/org/apache/openjpa/lib/graph/Edge
/org/apache/openjpa/lib/graph/GraphVisitor
/org/apache/openjpa/lib/graph/BreadthFirstWalk
/org/apache/openjpa/lib/graph/Graph
/org/apache/openjpa/lib/graph/DepthFirstAnalysis
/org/apache/openjpa/lib/conf/FileValue
/org/apache/openjpa/lib/conf/ProductDerivations
/org/apache/openjpa/lib/conf/AbstractProductDerivation
/org/apache/openjpa/lib/conf/IntValue
/org/apache/openjpa/lib/conf/StringListValue
/org/apache/openjpa/lib/conf/ValueListener
/org/apache/openjpa/lib/conf/Configuration
/org/apache/openjpa/lib/conf/PluginValue
/org/apache/openjpa/lib/conf/Configurations

在网上找了好久也明白这文件是什么格式和编码，其中乱码部分是什么，还请知道的大牛们赐教