gd::GrammarTerminals Namespace Reference

Functions
bool	IsWhitespace (gd::String::value_type character)
bool	IsParameterSeparator (gd::String::value_type character)
bool	IsDot (gd::String::value_type character)
bool	IsQuote (gd::String::value_type character)
bool	IsBracket (gd::String::value_type character)
bool	IsOpeningParenthesis (gd::String::value_type character)
bool	IsClosingParenthesis (gd::String::value_type character)
bool	IsOpeningSquareBracket (gd::String::value_type character)
bool	IsClosingSquareBracket (gd::String::value_type character)
bool	IsExpressionEndingChar (gd::String::value_type character)
bool	IsExpressionOperator (gd::String::value_type character)
bool	IsUnaryOperator (gd::String::value_type character)
bool	IsNumberSign (gd::String::value_type character)
bool	IsTermOperator (gd::String::value_type character)
bool	IsNumberFirstChar (gd::String::value_type character)
bool	IsNonZeroDigit (gd::String::value_type character)
bool	IsZeroDigit (gd::String::value_type character)
bool	IsAdditionalReservedCharacter (gd::String::value_type character)
bool	IsAllowedInIdentifier (gd::String::value_type character)

Detailed Description

Contains functions to handle the grammar of the expressions accepted by GDevelop.

Warning

This file is ported to JavaScript (notably IsAllowedInIdentifier and the character sets it relies on). Any change here must be mirrored in:

• newIDE/app/src/EventsSheet/EventsTree/TextRenderer/EventScriptIdentifiers.js (this repository),
• generation-api/src/lib/gdevelop-identifiers.js (GDevelop-services repository).

Function Documentation

IsAllowedInIdentifier()

bool gd::GrammarTerminals::IsAllowedInIdentifier ( gd::String::value_type  character )

inline

Check if the given character can be used in an identifier. This is any unicode character, except for: ‘, . " () [] {} + - < > ? ^ = \ : ! / * ~ ’ % # @ | & $ ;` and backtick and whitespaces (space, line break, carriage return).

This is loosely based on what is allowed in languages like JavaScript (see https://mathiasbynens.be/notes/javascript-properties), without support for unicode escape syntax, and allowing all unicode ranges. The only disallowed characters are the one used for the grammar.