String

String defines several useful functions for string manipulation. The following list gives a short overview:

• strip(string* pointer): Removes all whitespaces from a string. See getStripped for examples.
• getStripped(string): Removes all whitespaces and returns the modified string.
  • Example: getStripped(" test abc\tabc test\nThis is a newline! ") = "testabcabctestThisisanewline!"

• removeTrailingWhitespaces(string): Removes trailing whitespace and returns the modified string.
  • Example: removeTrailingWhitespaces(" test abc ") = "test abc"

• getNextQuote(string, start): Returns the position of the next quote in the string, starting with start.
  • Examples:
    • getNextQuote("012\"456\"89", 0) = 3
    • getNextQuote("012\"456\"89", 3) = 3
    • getNextQuote("012\"456\"89", 5) = 7
    • getNextQuote("012\"456\"89", 8) = std::string::npos
• isBetweenQuotes(string, position): Returns true if position is between two quotes.
  • Examples:
    • isBetweenQuotes("012\"456\"89", 0) = false
    • isBetweenQuotes("012\"456\"89", 3) = false
    • isBetweenQuotes("012\"456\"89", 4) = true
    • isBetweenQuotes("012\"456\"89", 7) = false
    • isBetweenQuotes("012\"456\"89", 8) = false

• hasStringBetweenQuotes(string): Returns true if the string contains something like '…"between quotes"…'.
  • Examples:
    • hasStringBetweenQuotes("test") = false
    • hasStringBetweenQuotes("test\"abc") = false
    • hasStringBetweenQuotes("test\"abc\"") = true
• getStringBetweenQuotes(string): If the string contains something like '…"between quotes"…' then 'between quotes' gets returned (without quotes).
  • Examples:
    • hasStringBetweenQuotes("test") = ""
    • hasStringBetweenQuotes("test\"abc") = ""
    • hasStringBetweenQuotes("test\"abc\"") = "abc"

• stripEnclosingQuotes(string): Removes enclosing quotes if available (including whitespaces at the outside of the quotes).
  • Examples:
    • stripEnclosingQuotes(" \"hello!\" ") = "hello!"
    • stripEnclosingQuotes(" \"hello! ") = " \"hello! "
• stripEnclosingBraces(string): Removes enclosing {braces} (braces must be exactly on the beginning and the end of the string).
  • Examples:
    • stripEnclosingBraces("{test}") = "test"
    • stripEnclosingBraces(" {test}") = " {test}"
    • stripEnclosingBraces("{ test }") = " test "

• isEmpty(string): Determines if a string is empty (contains only whitespaces (' ', \t, \n).
• isComment(string): Determines if a string is a comment (starts with a comment-symbol). A comment is defined by a leading '#', '%', ';' or ''.
  • Examples:
    • isComment("# test") = true
    • isComment("a # test") = false
    • isComment(" # test") = true
• isNumeric(string): Determines if a string contains only numbers and maximal one '.'.

• addSlashes(string): Adds backslashes to the given string which makes special chars visible. Existing slashes will be doubled.
  • Examples: "\\" → "\\\\", "\n" → "\\n"
• removeSlashes(string): Removes backslashes from the given string. Double backslashes are interpreted as one backslash.
  • Examples: "\\\\" → "\\", "\\n" → "\n"

• lowercase(string* pointer): Replaces each char between A and Z with its lowercase equivalent. Uses tolower (C function).
• getLowercase(string): Returns a copy of the given string without uppercase chars.

• uppercase(string* pointer): Replaces each char between a and z with its uppercase equivalent. Uses toupper (C function).
• getUppercase(string): Returns a copy of the given string without lowercase chars.

• nocaseCmp(string1, string2): Compares two strings ignoring different casing.
• nocaseCmp(string1, string2, length): Compares the first 'len' chars of two strings ignoring different casing.

• hasComment(string): Returns true if the string contains a comment, introduced by #, %, ; or .
  • Examples:
    • hasComment("test") = false
    • hasComment("# test") = true
    • hasComment(" # test") = true
    • hasComment("a # test") = true
• getComment(string): If the string contains a comment, the comment gets returned (including the comment symbol), an empty string otherwise.
  • Example: getComment("abc # test") = "# test"
• getCommentPosition(string): If the string contains a comment, the position of the comment-symbol gets returned, std::string::npos otherwise.
  • Examples:
    • getCommentPosition("# test") = 0
    • getCommentPosition("abc # test") = 4
    • getCommentPosition("abc test") = std::string::npos
• getNextCommentPosition(string, start): Returns the position of the next comment-symbol, starting with start.
  • Examples:
    • getCommentPosition("abc # test", 0) = 4
    • getCommentPosition("abc # test", 4) = 4
    • getCommentPosition("abc # test", 5) = std::string::npos