Linux System - Table 12 > Packages - Table 1 & 2 > expat

\"XML Parser Toolkit Expat is a stream-oriented parser. You registercallback (or handler) functions and then start feeding it the document.As the parser recognizes parts of the document, it will call theappropriate registered handler for that part. The document is fed tothe parser in pieces, so parsing can start before the whole document isavailable, allowing to parse documents that won't fit into memory.\"