Substring/Top and tail: Difference between revisions
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({{header|ZX Spectrum Basic}}) |
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* String with last character removed |
* String with last character removed |
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* String with both the first and last characters removed |
* String with both the first and last characters removed |
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=={{header|ZX Spectrum Basic}}== |
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<lang zxbasic> |
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10 PRINT FN f$("knight"): REM strip the first letter |
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20 PRINT FN l$("socks"): REM strip the last letter |
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30 PRINT FN b$("brooms"): REM strip both the first and last letter |
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100 STOP |
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9000 DEF FN f$(a$)=a$(2 TO LEN(a$)) |
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9010 DEF FN l$(a$)=a$(1 TO LEN(a$)-(1 AND (LEN(a$)>=1))) |
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9020 DEF FN b$(a$)=FN l$(FN f$(a$)) |
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</lang> |
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[[Category:String manipulation]] |
[[Category:String manipulation]] |
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Revision as of 22:53, 5 June 2011
Substring/Top and tail is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.
The task is to demonstrate how to remove the first and last characters from a string. The solution should demonstrate how to obtain the following results:
- String with first character removed
- String with last character removed
- String with both the first and last characters removed
ZX Spectrum Basic
<lang zxbasic> 10 PRINT FN f$("knight"): REM strip the first letter 20 PRINT FN l$("socks"): REM strip the last letter 30 PRINT FN b$("brooms"): REM strip both the first and last letter 100 STOP
9000 DEF FN f$(a$)=a$(2 TO LEN(a$)) 9010 DEF FN l$(a$)=a$(1 TO LEN(a$)-(1 AND (LEN(a$)>=1))) 9020 DEF FN b$(a$)=FN l$(FN f$(a$)) </lang>