RIGHT$: Difference between revisions
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(Created page with "The '''RIGHT$''' function returns a set number of characters in a STRING variable starting from the end and counting backwards. {{PageSyntax}} :: '''RIGHT$('''''stringvalue$, numberofcharacters%''''')''' {{Parameters}} * The ''stringvalue$'' can be any string of ASCII characters as a STRING variable. * The ''numberofcharacters'' INTEGER value determines the number of characters to return from the right end of the string. {{PageDescription}} * If th...") |
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''Example 1:'' Getting the right portion of a string value such as a person's last name. | ''Example 1:'' Getting the right portion of a string value such as a person's last name. | ||
{{CodeStart}} | {{CodeStart}} | ||
name$ = "Tom Williams" | name$ = "Tom Williams" | ||
Last$ = {{Cl|RIGHT$}}(name$, {{Cl|LEN}}(name$) - {{Cl|INSTR}}(name$, " ")) 'subtract space position from string length | Last$ = {{Cl|RIGHT$}}(name$, {{Cl|LEN}}(name$) - {{Cl|INSTR}}(name$, " ")) 'subtract space position from string length | ||
{{Cl|PRINT}} Last$ | {{Cl|PRINT}} Last$ | ||
{{CodeEnd}} | {{CodeEnd}} | ||
{{OutputStart}}Williams {{OutputEnd}} | {{OutputStart}}Williams {{OutputEnd}} | ||
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''Example 2:'' Adding the leading zero in single digit [[HEX$]] values using RIGHT to take the right two hexadecimal string digits. | ''Example 2:'' Adding the leading zero in single digit [[HEX$]] values using RIGHT to take the right two hexadecimal string digits. | ||
{{CodeStart}} | {{CodeStart}} | ||
{{Cl|SCREEN}} {{Cl|_NEWIMAGE}}(640, 480, 32) '32 bit screen modes ONLY! | {{Cl|SCREEN}} {{Cl|_NEWIMAGE}}(640, 480, 32) '32 bit screen modes ONLY! | ||
red = 255 | red = 255 | ||
| Line 44: | Line 44: | ||
{{Cl|PRINT}} hexadecimal$ | {{Cl|PRINT}} hexadecimal$ | ||
{{Cl|COLOR}} {{Cl|VAL}}(hexadecimal$) | {{Cl|COLOR}} {{Cl|VAL}}(hexadecimal$) | ||
{{Cl|END SUB}} | {{Cl|END SUB}} | ||
{{CodeEnd}} | {{CodeEnd}} | ||
{{OutputStart}}'''{{text|&HFFFF0080|white}}''' | {{OutputStart}}'''{{text|&HFFFF0080|white}}''' | ||
| Line 51: | Line 51: | ||
''See also:'' | ''See also:'' | ||
* [[LEFT$]], [[MID$]] | * [[LEFT$]], [[MID$]] | ||
* [[LTRIM$]], [[RTRIM$]] | * [[LTRIM$]], [[RTRIM$]] | ||
* [[INSTR]], [[HEX$]] | * [[INSTR]], [[HEX$]] | ||
{{PageNavigation}} | {{PageNavigation}} | ||
Revision as of 02:31, 23 January 2023
The RIGHT$ function returns a set number of characters in a STRING variable starting from the end and counting backwards.
Syntax
- RIGHT$(stringvalue$, numberofcharacters%)
- The stringvalue$ can be any string of ASCII characters as a STRING variable.
- The numberofcharacters INTEGER value determines the number of characters to return from the right end of the string.
Description
- If the number of characters exceeds the string length(LEN) the entire string is returned.
- RIGHT$ returns always start at the last character of the string, even if a space. RTRIM$ can remove ending spaces.
- Number of characters cannot be a negative value.
Example 1: Getting the right portion of a string value such as a person's last name.
name$ = "Tom Williams" Last$ = RIGHT$(name$, LEN(name$) - INSTR(name$, " ")) 'subtract space position from string length PRINT Last$ |
Williams |
Example 2: Adding the leading zero in single digit HEX$ values using RIGHT to take the right two hexadecimal string digits.
SCREEN _NEWIMAGE(640, 480, 32) '32 bit screen modes ONLY! red = 255 green = 0 blue = 128 Color32 red, green, blue PRINT "Colored text" SUB Color32 (R, G, B) R = R AND &HFF: G = G AND &HFF: B = B AND &HFF ' limit values to 0 to 255 hexadecimal$ = "&HFF" + RIGHT$("0" + HEX$(R), 2) + RIGHT$("0" + HEX$(G), 2) + RIGHT$("0" + HEX$(B), 2) PRINT hexadecimal$ COLOR VAL(hexadecimal$) END SUB |
&HFFFF0080 Colored text |
- Note: When a single hexadecimal digit is returned the resulting value will need the leading zero added. Otherwise the hexa- decimal value created will have a byte missing from the value. EX: Color &HFF000000 is valid while &HFF000 is not.
See also: