Parsing complex text file in Python -

i have text file following:

#some_line     @another_line         original_string1|new_string1 #some_other_line     @and_another_line         original_string2|new_string2 

i want able associate every line @ preceding line #. cannot seem figure out strategy achieve in python.

here current code:

    open(self.file, 'r') f:         i, line in enumerate(f):             line = line.strip(' \t\n\r')             if '#' in line[:1]:                 self.parent[i] = line[1:]             if '@' in line[:1]:                 self.child[i] = line[1:]             if '|' in line:                 key, value = line.split('|')                 self.strings[key] = value 

i need able reference each parent entry , associate child entries it. lines '|' need associated parent well.

i think want mapping child strings parent strings. or maybe want mapping child strings , parent strings line numbers.

so here's i'll do: build mappings strings line numbers (i'm assuming each 1 unique, should easy fix if not), , build mapping child line numbers parent line numbers. if needed string-to-string mapping, or else, should able figure out this.

the strings-to-line-numbers part trivial, child-to-parent part, need keep track of last parent line number we've seen.

child_lines, parent_lines, child_parents = {}. {}. {} last_parent_line = none open(self.file) f:     i, line in enumerate(f):         line = line.strip(' \t\n\r')         marker, value = line[0], line[1:]         if marker == '#':             parent_lines[value] =             last_parent_line =         elif marker == '@':             child_lines[value] =             child_parents[i] = last_parent_line 

that's it.