Data Extraction

This program is used to extract data from a buffer and print them with the following format on the standard output.

0.1545211
-0.5892455
... 

It parses every line of the input buffer and check if it matches with the given pattern (gave in argument to this program). If it does, it will extract the specified data from the buffer and print it, else it will ignore the line.

Usage

DataExtract input_buffer_file_path pattern n_arg 

• The input_buffer_file_path argument is the file path of the input buffer.
• The pattern argument is the pattern used to parse the line. This pattern is uses the same syntax as the printf function. Example: if you want to parse a complex number, you will have to use the following pattern: "%f + %fi".
• The n_arg argument specifies the index of the number to extract form the previously defined pattern.

Usage example:
To extract the 2nd number of a file which lines are defined as follow: integer float integer

DataExtract ./buffer.txt "%i %f %i" 2 

Information

All the files related to this module are located under /avr32/services/dsp/dsplib/utils/program/data_extract
In this directory you can find the source code and the binary of this module.