parseNumber: Difference between revisions

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| An SQF equivalent of C++ [http://www.cplusplus.com/reference/cstdlib/atof/ atof] function. Parses the string, interpreting its content as a floating point number.
| An SQF equivalent of C++ [http://www.cplusplus.com/reference/cstdlib/atof/ atof] function. Parses the string, interpreting its content as a floating point number.
<br><br>The command first discards as many whitespace characters as necessary until the first non-whitespace character is found. Then, starting from this character, takes as many characters as possible that are valid following a syntax resembling that of [https://community.bistudio.com/wiki/Floating_Point_Number#Floating_Point_Literals floating point literals], and interprets them as a numerical value. The rest of the string after the last valid character is ignored and has no effect on the behavior of this command.
<br><br>The command first discards as many whitespace characters as necessary until the first non-whitespace character is found. Then, starting from this character, takes as many characters as possible that are valid following a syntax resembling that of [https://community.bistudio.com/wiki/Floating_Point_Number#Floating_Point_Literals floating point literals], and interprets them as a numerical value. The rest of the string after the last valid character is ignored and has no effect on the behavior of this command.
<br><br>If the first sequence of non-whitespace characters in string does not form a valid floating-point number, or if no such sequence exists because either string is empty or contains only whitespace characters, no conversion is performed and the command returns 0. |= Description
<br><br>If the first sequence of non-whitespace characters in string does not form a valid floating-point number, or if no such sequence exists because either string is empty or contains only whitespace characters, no conversion is performed and the command returns 0. |DESCRIPTION=
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| '''parseNumber''' string |= Syntax
| '''parseNumber''' string |SYNTAX=


|p1= string: [[String]] |= Parameter 1
|p1= string: [[String]] |PARAMETER1=


| [[Number]] |= Return value
| [[Number]] |RETURNVALUE=


| s2= '''parseNumber''' boolean &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;''(Since Arma 3 v1.49.131731)''|= Syntax
| s2= '''parseNumber''' boolean &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;''(Since Arma 3 v1.49.131731)''|SYNTAX=


|p21= boolean: [[Boolean]] |= Parameter 1
|p21= boolean: [[Boolean]] |PARAMETER1=


| r2= [[Number]] - 0 if [[false]], 1 if [[true]]|= Return value
| r2= [[Number]] - 0 if [[false]], 1 if [[true]]|RETURNVALUE=
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|x1= <code>_number = [[parseNumber]] "0.125"; //0.125</code> |= Example 1
|x1= <code>_number = [[parseNumber]] "0.125"; //0.125</code> |EXAMPLE1=


|x2= <code>_number = [[parseNumber]] "2 abc"; //2</code> |= Example 2
|x2= <code>_number = [[parseNumber]] "2 abc"; //2</code> |EXAMPLE2=


|x3= <code>_number = [[parseNumber]] [[true]]; //1</code> |= Example 3
|x3= <code>_number = [[parseNumber]] [[true]]; //1</code> |EXAMPLE3=
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| [[BIS_fnc_parseNumber]] |= See also
| [[BIS_fnc_parseNumber]] |SEEALSO=


}}
}}

Revision as of 14:44, 7 April 2019

-wrong parameter ("Arma") defined!-1.00
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Description

Description:
An SQF equivalent of C++ atof function. Parses the string, interpreting its content as a floating point number.

The command first discards as many whitespace characters as necessary until the first non-whitespace character is found. Then, starting from this character, takes as many characters as possible that are valid following a syntax resembling that of floating point literals, and interprets them as a numerical value. The rest of the string after the last valid character is ignored and has no effect on the behavior of this command.

If the first sequence of non-whitespace characters in string does not form a valid floating-point number, or if no such sequence exists because either string is empty or contains only whitespace characters, no conversion is performed and the command returns 0.
Groups:
Uncategorised

Syntax

Syntax:
parseNumber string
Parameters:
string: String
Return Value:
Number

Alternative Syntax

Syntax:
parseNumber boolean        (Since Arma 3 v1.49.131731)
Parameters:
boolean: Boolean
Return Value:
Number - 0 if false, 1 if true

Examples

Example 1:
_number = parseNumber "0.125"; //0.125
Example 2:
_number = parseNumber "2 abc"; //2
Example 3:
_number = parseNumber true; //1

Additional Information

See also:
BIS_fnc_parseNumber

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note

Notes

Posted on Aug 28, 2014
ffur2007slx2_5
(A3 1.26)It only detects the first occurrence of a number in the string, return 0 by default. parseNumber "2s4f"; // 2 parseNumber "s2f4"; // 0 parse config or code, currently BIS_fnc_parseNumber, occurrence is only limited with number, return -1 by default. {s3s4f} call BIS_fnc_parseNumber; // -1

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