The basic steps for developing a custom reader are as follows.
To develop a custom reader
Write the basic API functions:
From within the xxxFillBuffer()
function, it is necessary to call other functions that repeatedly read a chunk of a source file, parse the chunk, and generate a token stream until the entire source file is processed.
TPReaderInterface
structure.*.def
), exporting the reader interface and format detection functions.Modify the formats.ini
file to identify the custom reader and its associated format detection function. See xxxsrAutoDet(). For example, the following lines would be added to the [Formats]
section of the formats.ini
file for the UTF-8 reader:
456.1.0.0=utf8 [CustomFilters] 1=utf8sr