21 string functions for comparing first and last characters of a string

[adjiap]

SUMMARY

Implements necessary changes for #21

Reviewers: @numere-org/maintainers

IMPLEMENTATION

• Implementation: Add beginswith() and endswith() string function with aliases, startswith(STR,STR), STR.startsw() and STR.endsw() respectively-
• Implementation test:

  X = "Hello World"
  startswith(X, "Hel")  # True
  endswith(X, "rld") # True
  endswith(X, "asdf") # False
  X.startsw("Hel")  # True
  X.endsw("rld")    # True

DOCUMENTATION

• [x] ChangesLog updated
• [x] Code changes commented
• Documentation articles:
  • [x] corresponding documentation articles updated
  • [ ] new documentation articles created
  • [ ] not needed
• Language files:
  • [x] corresponding language files updated (Updated in separate PR, https://github.com/numere-org/Translation/pull/17
  • [ ] not needed

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TESTS BY REVIEWERS

• [x] Added to the automatic SW tests
• [ ] Tested manually

[adjiap]

@numeredev Should there be an Issue as well in Translation that I can make a feature branch out of? Or should I commit the changes some other name as a feature branch?

[numeredev]

@numeredev Should there be an Issue as well in Translation that I can make a feature branch out of? Or should I commit the changes some other name as a feature branch?

Easiest way is the following: create a branch in numere-org/Translation with the same name as this one, i.e. 21-string-functions-for-comparing-first-and-last-characters-of-a-string. Then open up a pull request and add the issue ID #21 in this pull request (second line or so).