F supports type checked formatting of plain text using printf printfn sprintf and related functions. In that way all escape sequences in the string are ignored except that two quotation mark characters are interpreted.
F Code I Love
F quote string. However expression trees in c 3 0 are very limited when compared with f quotations so that s one of the many reasons why f is an interesting language. If you want to see how f represents some expressions you can try it in the fsi f interactive. To specify a string that contains an embedded quoted string you can either use a verbatim string or a triple quoted string.
F strings in f the string type represents immutable text as a sequence of unicode characters. You can mark a quoted expression in one of two ways. Dotnet fsi printfn hello s d d is d world 2 2 2 2.
A quoted expression is an f expression in your code that is delimited in such a way that it is not compiled as part of your program but instead is compiled into an object that represents an f expression. Introduction to f quotations. Example let string1 hello simple string let string2 line nnewline string with newline escape sequence let string3 line nsameline use to create a verbatim string literal let string4 line with quoutes inside double quoute to indicate a single quoute inside string let string5 single quote is ok triple quote string.
When a string literal is preceded by the symbol it is called a verbatim string. The last post was mostly used operation of any language the print. In this post we ll use the mostly used type and literals in code i e.
There are 3 different types of strings available in f. F also allows structured values to be formatted as plain text. Either with type information or without type information.
Verbatim string 3. So you will not see much different between the c string and. Types of strings in f.
String is an immutable data type in c and f is all about immutability. Hello world 2 2 is 4. In this case all escape sequences are ignored including double quotation mark characters.
Below is a sample code demonstrating these 3 different types of strings in f. If you use a verbatim string you must specify two quotation mark characters to indicate a single quotation mark character. In previous posts we learned and got familiar with the theory and code of functional programming language f.
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