30 lines
		
	
	
	
		
			750 B
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			30 lines
		
	
	
	
		
			750 B
		
	
	
	
		
			Text
		
	
	
	
	
	
| [[ "\\" =~ ["."] ]] && echo bad 1
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| 
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| [[ "\\" =~ "[.]" ]] && echo bad 2
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| [[ "\\" =~ [\. ]] && echo bad 3
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| [[ "\\" =~ [\.] ]] && echo bad 4
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| [[ "\\" =~ [\\] ]] || echo bad 5
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| [[ dog =~ [[=d=]].. ]] && echo ok 1
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| [[ d.. =~ [[=d=]]\.\. ]] && echo ok 2
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| [[ dog =~ ['[=d=]'].. ]] && echo ok 3	# dubious
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| [[ dog =~ [[=d=]].[[=G=][=g=]] ]] && echo ok 4
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| [[ dog =~ [[=d=]].[\[=G=][=g=]] ]] && echo ok 4a
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| [[ dog =~ "d.." ]] || echo ok 5
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| [[ dog =~ [[.d.][.D.]]o. ]] && echo ok 6
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| [[ dog =~ ([[.d.][.D.]])o(.) ]] && echo ok 7 -- ${BASH_REMATCH[1]}
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| [[ dog =~ d([[.o.][.O.]])(.) ]] && echo ok 8 -- ${BASH_REMATCH[1]}
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| [[ dog =~ .([[.o.][.O.]])(.) ]] && echo ok 9
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| [[ dog =~ 'd''o''g' ]] && echo ok 10
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| [[ ']' =~ [']'] ]] && echo ok 11
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| [[ a =~ ['a]'] ]] || echo ok 12
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