Matn terminologiyasi

“is” Functions to determine type

• ischar true if the input argument is a character vector
• isstring true if the input argument is a string
• isStringScalar true if the input argument is a string scalar

“is” and true/false Functions

• functions for strings and character vectors:
• isletter true if the input argument is a letter of the alphabet
• isspace true if the input argument is a white space character
• isstrprop determines whether the characters in a string are in a category specified by second argument, e.g. ‘alphanumeric’
• contains determines whether a substring is somewhere within a string
• endsWith/startsWith determine whether text ends with (or starts with) a specified string

String/Number Functions

• Converting from strings to numbers and vice versa:
• int2str converts from an integer to a character vector storing the integer
• num2str converts a real number to a character vector containing the number
• string converts number(s) to strings
• str2num (and str2double) converts from a string or character vector containing number(s) to a number array
• Note: this is different from converting to/from ASCII equivalents

Common Pitfalls

• Trying to use == to compare character vectors for equality, instead of the strcmp function (and its variations)
• Confusing sprintf and fprintf. The syntax is the same, but sprintf creates a string whereas fprintf prints 
• Trying to create a vector of character vectors with varying lengths (use string arrays instead)
• Forgetting that when using strtok, the second argument returned (the “rest” of the string) contains the delimiter.

Programming Style Guidelines

• Make sure the correct string comparison function is used; for example, strcmpi if ignoring case is desired