May 2, 2022 · Newlines in folded block scalars (>) are subject to line folding, newlines in literal block scalars (|) are not. Line folding replaces a single newline between non-empty lines with a space, and in the case of empty lines, reduces the number of newline characters between the surrounding non-empty lines by one: one. two. three. four. five.

Specifically, the pipe indicates that (except for the indentation) the scalar value should be interpreted literally in such a way that preserves newlines. Conversely, the > character indicates that multi-line "folded" scalar follows, meaning that newlines are converted to spaces. For example: ... This is a multi-line. ... literal style scalar.

Sep 6, 2016 · Scalar content can be written in block notation, using a literal style (indicated by “|”) where all line breaks are significant. Alternatively, they can be written with the folded style (denoted by “>”) where each line break is folded to a space unless it ends an empty or …

Mar 25, 2025 · Values can span multiple lines using | or >. Spanning multiple lines using a “Literal Block Scalar” | will include the newlines and any trailing spaces. Using a “Folded Block Scalar” > will fold newlines to spaces; it is used to make what would otherwise be a very long line easier to read and edit. In either case the indentation will be ignored.

YAML (/ ˈjæməl / ⓘ; see § History and name) is a human-readable data serialization language. It is commonly used for configuration files and in applications where data is being stored or transmitted.

Jan 30, 2024 · Literal and folded block scalars use ‘|’ and ‘>’, respectively, for better representation of multi-line strings. YAML allows the reuse of previously defined nodes with an alias and anchor, keeping the document DRY (Don’t Repeat Yourself). Here, ‘defaults’ is an anchor, which is then bolted to the ‘development’ dictionary.

Nov 11, 2022 · YAML has the most human-readable, intuitive, and compact syntax for defining configurations compared to XML and JSON. YAML uses indentation to define structure in the file, which is helpful if you are used to writing Python code and are familiar with the indentation style the language uses.

%YAML 1.2---YAML: YAML Ain't Markup Language™ What It Is: YAML is a human-friendly data serialization language for all programming languages.

Jan 20, 2025 · YAML vs. YML - What’s the Correct Syntax? YAML parsers refer to the libraries or tools that read and process files formatted in the YAML language.

Jul 5, 2024 · But the JSON vs. YAML (YAML Ain’t Markup Language) debate is a bit more complicated. JSON’s popularity is an advantage, yet YAML may be a better fit depending on several factors (like data type and whether you need a …