c# - Is there any scenario where the Rope data structure is more efficient than a string builder -


Based on a comment by the user, related to

In any scenario where the data string is more efficient than string builder? This is the opinion of some people that rope data structures are almost never better in terms of speed compared to native string or string builder operations in normal situations, so I look forward to seeing a realistic scenario where the ropes are really good .

The documentation for this comes in some detail on big o behaviors, which The factor is the enlightening.

In their documentation, examples are provided for reference about contains very long strings , 10 MB string . Very few programs will be written along with some such programs, and for the many sections of problems with such needs, they need full string for stream based to replicate them again Also possible, the result is. As the rope is meant for non-streaming manipulation of multi-megabyte character sequences, when you are able to behave properly in the form of rope instead of the sequence of characters in the form of class (self ropes).

Important professionals:

  • Inclusion / insertion becomes almost constant time operation
  • Previous rope to allow sharing in some operating memory Can reuse sections.
    • Note that the net string does not share character buffers on substrings, unlike java strings - an option with professionals and cons in case of memory footprint. Ropes have a tendency to avoid such issues.
    • Suspended shipment of substrings is allowed until ropes are required
      • Note that it is difficult to obtain properly, it is very easy to use Due to excessive curiosity rendering useless and it requires a consumer code to behave as a rope, not the sequence of characters.

      • Use of random reading becomes o (log n)
      • Sequential read reach continuous factors between reach between 5 and 10
      • Efficient use of

      This leads to some 'clear'

    • '(Firstly outlined by the SGI).

      • Easy Undo / Redo
        • Edit buffers on large files, at some point you may have to write changes on the disk, streaming through the whole string To include, so it is only useful if most of the edits are primarily in the memes
        • Manipulation of DNA segments, where there is significant manipulation, but very little production actually happens
        • Multiple threads E algorithms that change the local sub-sections of string. In theory, such cases can be closed to separate the threads and the core without taking local copies of the sub-clauses and then they are re-assembled, saves enough memory, and in the end, one with the operation Avoids expensive serial combinations.

        In cases where the domain specific behavior in the string can be coupled with a relatively simple increase for rope implementation:

        • Only significant general substrings The number of is adaptable for simple internation for significant memory saving.
        • Strings with sparse structures, or significant local recurrence, still allow the length encoding to be run by allowing the proper level of random access.
        • Where sub string boundaries are themselves 'nodes', where information can be stored, although such structure is quite possible as they are rarely modified but often read.

        You can see from the listed examples, all come nicely in the 'niche' category. In addition, if you want to rewrite the algorithm instead of a stream processing operation, then there are several good options.


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