python script to convert an ascii script into a binary file in the correct format

sample cmd line: python [login to view URL](track_id, window_size, overlay) - select fingerprints from fingerprints where id = track_id - fingerprints look like this in ascii text and can be a random length from 32 to thousands FPS = F803794049860E01B2DA00001 780269404D820E01B25A00002 780269404D830E00B64A00003 7C22694045920E0BA44A00004 FC2268404D930C03A44200005 F86268404C920C02A24200006 786220C043820C03A54200007 - Windows of fingerprints are taken 1 chunk at a time. Window size 288 and overlay of 32 would look like this: window 1 FPS[0:287] window 2 FPS[256:543] window 3 FPS[512:799] etc Window size 256 and overlay of 0 would look like this: window 1 FPS[0:255] window 2 FPS[256:511] window 3 FPS[513:767] This data needs to be converted into a format we need (binary) with start and end words for each window. Please refer to the attached sample in node for window = 256 and overlay = 0. The output of should match the binary output that I placed into a text file (please note this text file was generated by piping the output of hexdump -C). You will see the method the FP is loaded as binary as well as the start window definition and time stamp (simple counter). End window is every 256 lines. The FPS you will grab from the DB will have 5 hex chars at the end that you don''t need to use (its the time stamp) which is just a counter. If there isn't enough for a full window at the end make fake fingerprints filled with 0xff for 10 bytes (see user guide). var fps = [login to view URL]().split(/\n/); var count = 0; var words = []; _( fps ).each( function( fph ) { if ( !fph || [login to view URL] < 25 ) { return; } var fp = new [login to view URL]( fph, null, null, null ); var buf = [login to view URL](); if ( count % WINDOW_SIZE === 0 ) { [login to view URL]( createHeaderWord( [login to view URL], count + 1 ) ); buf[15] = 0x40; } else if ( count % WINDOW_SIZE === (WINDOW_SIZE - 1) ) { buf[15] = 0x50; } [login to view URL]( buf ); count++; }); while ( count % WINDOW_SIZE !== 0 ) { var pad = new Buffer(16); [login to view URL](0); for (var j=0; j<10; j++) { //pad[j] = [login to view URL]([login to view URL]() * 256); pad[j] = 0xff; } [login to view URL](pad); if ( count % WINDOW_SIZE === (WINDOW_SIZE - 1) ) { words[words.length-1][15] = 0x50; } else { words[words.length-1][15] = 0x20; } count++; } Here is an example: - track has 636 fingerprints - window size is defined as 256 - loop through 1 fingerprint at a time - start of each window needs the timebase timestamp (counter) and the track_id put in to the correct positions and the start value of 0x1 in buffer[15] (16th byte) - first fingerprint in the window will have 0x4 in buffer[15] (16th byte) - each word is 16 words - last fingerprint in the window will have 0x5 in buffer[15[ - if the last window is not a multiple of the window size it should be padded with 0's and have 0x2 in buffer[15] - there must be a end window