Character - Whitespace

Data System Architecture


White-space characters is a set of characters that contains:

They are part of the non printing characters.

Space set

They may be a difference between the class:

  • space
  • and whitespace

as seen below between the regular expression definition and unicode.

Regular expression

In regular expression, the [:space:] class contains the following characters.

Note that the shorthand:

  • \S select anything that is not a whitespace character
  • \s or [:space:] select any whitespace character

Unicode code

See the whole set on Unicode by giving the class [:whitespace:]

How to

Show them

They are generally replaced by visible characters

Sh - Backslash Escape Characters (Whitespace, Tabs, Ends, End of Line, Newline) - Non-printing characters

Recommended Pages
Notepad Eol
A step by step on how to replace a text in Notepad++ with regular expression

A step by step tutorial and snippets on how to replace a portion of text in notepad++ with regular expression
Bash Liste Des Attaques Ovh
Bash - IFS (Field Separator)

The field separator is a set of character that defines one or more field separator that separates (delimit) field (word) in a string. DELIM It's defined in the IFS variable parameters statement...
CSS - Emphemeral unit (em | equal M)

CSS The emphemeral unit (em) is a relative size to the default font-size set in a browser (=16px on windows) A font-size of 0.875em translates to 87.5% of the default fontsize of the browser. To simplify:...
CSS - Relative Sizing (Length)

Relative Sizing is when you are using a length units that is relative to another length property. Style sheets that use relative units will more easily scale from one medium to another (e.g., from a...
Data System Architecture
Character - Tabulation

Tabulation are non-visible, control characters that permits to align text. The most known is the 0009Horizontal tabulation (ie HT, character 9) or \t as shorthand that is part of the space character...
Characters - Newline - End of Line ( EOL ) - Line Separators - Line Break

To mark line endings in text files, the following characters are used: Unix/Linux file systems use newlines (\n). MacOS uses carriage-returns (\r). Windows uses a carriage-return followed by...
Card Puncher Data Processing
Cryptography - Base64 Cipher

Base64 is a cipher (without key and reversible) that converts (encode) a data (message) in 64 characters of the ASCII string. See also the Google...
HTML - (Element|Tag|Markup)

element in HTML where: Tag In HTML, Tag name of an element are TR/html-markup/documents.htmlcase-insensitive. In XHTML, tag names are case sensitive and must be written in their canonical...
HTML - Whitespace

Whitespace character in HTML See
Regexp - Character Class (Character Set)

A character class defines a domain of permitted characters. character set ASCII characters with square brackets where: [ is the start character class definition ] is the end character class...

Share this page:
Follow us:
Task Runner