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One example of this continued division of use is the type tool in Adobe Photoshop, where the return key produces a new line while the enter key ends editing mode. Another is Mathematica, where the Return key creates a new line, while the Enter key (or Shift-Return) submits the current command for execution.
Enable the Input menu (via the 'Input Sources' panel of the 'Keyboard' System Preferences). This gives access to: the Keyboard Viewer, which can be used to view and input characters accessed via the ⌥ Option key; the Character Viewer, which can be used to access any Unicode character. It is also available from the Special Characters tool
In SGML, HTML and XML documents, the logical constructs known as character data and attribute values consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series of characters called a character reference, of which there are two types: a numeric character reference and a character entity reference.
Ctrl+↵ Enter: ⇧ Shift+↵ Enter [notes 5] or Ctrl+↵ Enter or ⌥ Opt+↵ Enter [notes 5] (may be able to skip some editor-defined input processing) Ctrl+↵ Enter: Insert Unicode: Alt+X + character codepoint ⌥ Opt + character codepoint ("Unicode Hex Input" must be added and active as current input source) Ctrl+⇧ Shift+U + character ...
HTML 5 introduces a number of input tags that can be represented by other interface elements. Some are based upon text input fields and are intended to input and validate specific common data. These include <email> to enter email addresses, <tel> for telephone numbers, <number> for numeric values.
Unicode input is method to add a specific Unicode character to a computer file; it is a common way to input characters not directly supported by a physical keyboard. Characters can be entered either by selecting them from a display, by typing a certain sequence of keys on a physical keyboard, or by drawing the symbol by hand on touch-sensitive ...
Web pages authored using HyperText Markup Language may contain multilingual text represented with the Unicode universal character set.Key to the relationship between Unicode and HTML is the relationship between the "document character set", which defines the set of characters that may be present in an HTML document and assigns numbers to them, and the "external character encoding", or "charset ...
Incorrect HTML entity escaping may also open up security vulnerabilities for injection attacks such as cross-site scripting. If HTML attributes are left unquoted, certain characters, most importantly whitespace, such as space and tab, must be escaped using entities. Other languages related to HTML have their own methods of escaping characters.