Proof-of-concept CNL-file format parser

Get header as dict and csv lines as lists

simple_plotter.py

+#!/usr/bin/env python3
+# -*- coding:utf-8 -*-
+
+import sys
+from io import StringIO
+
+import json
+import csv
+
+
+
+def cnl_slice(file, start_delimiter, end_delimiter):
+
+    ## Find beginning
+    for line in file:
+        if ( line.startswith(start_delimiter) ):
+            break
+
+    ## Skip comments and quit on end
+    for line in file:
+        if ( line.startswith(end_delimiter) ):
+            return
+
+        # skip empty or commented lines
+        if ( not line or line[0] == "%" or line[0] == "#" ):
+            continue
+
+        yield line
+
+
+
+
+
+def read_header(f):
+    str_io = StringIO()
+
+    for line in cnl_slice(f, "%% Begin_Header", "%% End_Header"):
+        str_io.write(line)
+
+    str_io.seek(0)
+    header = json.load( str_io )
+
+    return header
+
+
+
+
+
+
+## MAIN ##
+if __name__ == "__main__":
+
+    filename = sys.argv[1]
+    print( filename )
+
+    with open( filename ) as in_file:
+        assert( in_file.readline() == "%% CPUnetLOGv1\n" )
+
+        header = read_header(in_file)
+        print( json.dumps(header, sort_keys=True, indent=4) )  ## XXX
+
+        print ("///")
+        print()
+
+        for l in csv.reader( cnl_slice(in_file, "%% Begin_Body", "%% End_Body") ):
+            print( l )
+            pass
+
+
+
+