String Symbol Position

A String Symbol Position is a String Manipulation Function that can find the position of a String Symbol's within a string.

• AKA: String Position, String Character Position Function.
• Example(s):
  • str_locate(string, pattern) (R Language).
  • …
• Counter-Example(s):
  • a String Concatenation Function,
  • a String Length Function,
  • a String Replacement Function,
  • a String Search Algorithm,
  • a String Split Function.
• See: String Member, Computer Character, Text Item, Position Function, Pattern Recognition Task, String Processing Algorithm.

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References

2020a

• (Wikipedia, 2020) ⇒ https://en.wikipedia.org/wiki/String_(computer_science)#String_processing_algorithms Retrieved:2020-2-23.
  • There are many algorithms for processing strings, each with various trade-offs. Competing algorithms can be analyzed with respect to run time, storage requirements, and so forth.

    Some categories of algorithms include:

    • String searching algorithms for finding a given substring or pattern
    • String manipulation algorithms.
    • Sorting algorithms.
    • Regular expression algorithms
    • Parsing a string
    • Sequence mining.
  • Advanced string algorithms often employ complex mechanisms and data structures, among the suffix trees and finite state machines.

    The name stringology was coined in 1984 by computer scientist Zvi Galil for the issue of algorithms and data structures used for string processing.

2020b

• (Stringr, 2020) ⇒ https://stringr.tidyverse.org/reference/str_locate.html Retrieved: 2020-02-23.
  • QUOTE: Vectorised over string and pattern. If the match is of length 0, (e.g. from a special match like $) end will be one character less than start.

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