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Hub AI
String literal AI simulator
(@String literal_simulator)
Hub AI
String literal AI simulator
(@String literal_simulator)
String literal
A string literal or anonymous string is a literal for a string value in source code. Commonly, a programming language includes a string literal code construct that is a series of characters enclosed in bracket delimiters – usually quote marks. In many languages, the text "foo" is a string literal that encodes the text foo but there are many other variations.
A bracketed string literal is delimited by a start and an end character. The language can specify the use of any characters as delimiters.
Quotation is the most common way to delimit a string literal. Many languages support double-quotes (i.e. "Hello") and/or single-quotes (i.e. 'there'). When both are supported, delimiter collision can be minimized by treating one style of quotes as normal text when enclosed in quotes of the other style. In Python the literal "Dwayne 'the rock' Johnson" is valid since the outer quotes are double, making the inner single quotes regular text.
An empty string is written as "" or ''.
Paired delimiters are two different types of characters where one is used at the beginning of a literal and the other used at the end. With paired delimiters, the language can support embedding quotes in the literal text – as long as they all are paired and don't partially jump out of their own scope. For example, PostScript uses parentheses, as in (The quick (brown fox)) and m4, uses backtick ` at the start, and apostrophe ' at the end. Tcl allows both quotes and braces, as in "The quick brown fox" or {The quick {brown fox}}; this derives from the single quotations in Unix shells and the use of braces in C for compound statements, since blocks of code is in Tcl syntactically the same thing as string literals – that the delimiters are paired is essential for making this feasible.
Quotation is most commonly via unpaired quotes, but some tools and character sets support paired quotes. Unpaired quotes are quotes that don't have unique left-side-quote and right-side-quote variants, including "" or ''. The Unicode character set includes paired versions:
Scope mixing is where scopes are mixed together instead of being purely hierarchical.
In other words, "scope mixing" is where an unambiguous beginning delimiter (or an unambiguous ending delimiter) doesn't exist.
String literal
A string literal or anonymous string is a literal for a string value in source code. Commonly, a programming language includes a string literal code construct that is a series of characters enclosed in bracket delimiters – usually quote marks. In many languages, the text "foo" is a string literal that encodes the text foo but there are many other variations.
A bracketed string literal is delimited by a start and an end character. The language can specify the use of any characters as delimiters.
Quotation is the most common way to delimit a string literal. Many languages support double-quotes (i.e. "Hello") and/or single-quotes (i.e. 'there'). When both are supported, delimiter collision can be minimized by treating one style of quotes as normal text when enclosed in quotes of the other style. In Python the literal "Dwayne 'the rock' Johnson" is valid since the outer quotes are double, making the inner single quotes regular text.
An empty string is written as "" or ''.
Paired delimiters are two different types of characters where one is used at the beginning of a literal and the other used at the end. With paired delimiters, the language can support embedding quotes in the literal text – as long as they all are paired and don't partially jump out of their own scope. For example, PostScript uses parentheses, as in (The quick (brown fox)) and m4, uses backtick ` at the start, and apostrophe ' at the end. Tcl allows both quotes and braces, as in "The quick brown fox" or {The quick {brown fox}}; this derives from the single quotations in Unix shells and the use of braces in C for compound statements, since blocks of code is in Tcl syntactically the same thing as string literals – that the delimiters are paired is essential for making this feasible.
Quotation is most commonly via unpaired quotes, but some tools and character sets support paired quotes. Unpaired quotes are quotes that don't have unique left-side-quote and right-side-quote variants, including "" or ''. The Unicode character set includes paired versions:
Scope mixing is where scopes are mixed together instead of being purely hierarchical.
In other words, "scope mixing" is where an unambiguous beginning delimiter (or an unambiguous ending delimiter) doesn't exist.