Oolite
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src
Core
OOIsNumberLiteral.h
Go to the documentation of this file.
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/*
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OOISNumberLiteral.h
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Utility function to recognize certain number literals, corresponding to
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C-style decimal integer literals and floating point literals without
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trailing type suffixes.
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Copyright (C) 2008-2013 Jens Ayton
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#import "
OOCocoa.h
"
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/* Recognise C-style decimal integer or float literals, without type suffix.
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More formally, it tests against the following grammar:
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number ::= [<whitespace>] [<sign>] basicNumber [<exponent>] [<whitespace>]
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whitespace ::= <whitespaceChar> [<whitespace>]
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whitespaceChar ::= " " | "\t"
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sign ::= "+" | "-"
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basicNumber = integer [decimal] | decimal
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integer ::= <digit> [<integer>]
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digit ::= "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
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decimal ::= <decimalPoint> <integer>
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decimalPoint ::= "."
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exponent = <e> [<sign>] <integer>
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e ::= "e" | "E"
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if allowSpaces = NO, the [<whitespace>] terms are excluded.
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*/
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BOOL
OOIsNumberLiteral
(NSString *
string
, BOOL allowSpaces);
OOCocoa.h
OOIsNumberLiteral
BOOL OOIsNumberLiteral(NSString *string, BOOL allowSpaces)
Definition
OOIsNumberLiteral.m:35
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