Empty string: Difference between revisions
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Add SmallBASIC |
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print "no empty" |
print "no empty" |
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.</syntaxhighlight> |
.</syntaxhighlight> |
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=={{header|ed}}== |
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ed has no concept of string, only lines. Still, one can empty (or even delete) a line. Checking for emptiness requires conditional matching with <tt>g</tt> and <tt>v</tt>. |
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<syntaxhighlight lang="sed"> |
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# Empty the string (line) |
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s/.*// |
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# Check for emptiness |
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g/.+/s//Not empty/ |
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v/Not empty/s//Empty</syntaxhighlight> |
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=={{header|Elena}}== |
=={{header|Elena}}== |
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