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superstring.py

superstring.py is an efficient library for heavy-text manipulation in Python, that achieves a remarkable memory and CPU optimization.

superstring.py uses Rope (data structure) and optimization techniques.

Performance example

alt text

The two plots show the comparison in terms of memory consumption and execution time between superstring.py and python build-in string (the comparison program consists of appending to a list all possible substrings of a 50000 bytes text).

Features

  • Fast and Memory-optimized.
  • Rich API.
  • Similar functionalities to python built-in string
  • Easy to embed and use.
  • MIT Licence

Installing

pip install superstring

How to use

from superstring import SuperString

string1 = SuperString("  This is ")
string2 = SuperString("SuperString!  ")

# concatenation
string = string1 + string2 # "  This is SuperString!  "

# print
print(string)

# length
len(string)
string.length()

# character
string[10] # "S"
string.characterAt(10) # "S"

# substring
string[10:21] # "SuperString"
string.substring(10, 21) # "SuperString"

# strip
string.strip() # "This is SuperString!"

# lower
string.lower() # "  this is superstring!  "

# upper
string.upper() # "  THIS IS SUPERSTRING!  "

Roadmap

  • Optimize even more (I think it's possible 😎)
  • Support for negative indexing
  • More benchmark and memory profiling

Contribute and support

You have any feature idea, a bug to correct or an improvement, feel free to open a issue or send your pull request. You can also support the author of superstring.py via Paypal.

LICENCE

MIT LICENCE