DranDane
Joined: 26 Jun 2007
Posts: 54
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 Posted: Mon Feb 25, 2008 1:25 am Post subject: [Resolved][RegEx] A void string |
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Hi,
I hope than someone can help me here for this simple RegEx. I'm able to write more complex RegEx but not this simple case.
How can I evaluate that my string is void or only filled with blanks?
Last edited by DranDane on Mon Feb 25, 2008 11:01 am; edited 1 time in total |
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Lexikos
Joined: 17 Oct 2006
Posts: 2558
Location: Australia, Qld
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| Posted: Mon Feb 25, 2008 3:04 am Post subject: |
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| RegEx: Quick Reference wrote: | * An asterisk matches zero or more of the preceding character, set, or subpattern. For example, a* matches ab and aaab. It also matches at the very beginning of any string that contains no "a" at all.
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\s Matches any single whitespace character, mainly space, tab, and newline (`r and `n). Conversely, capital \S means "any non-whitespace character".
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Circumflex (^) and dollar sign ($) are called anchors because they don't consume any characters; instead, they tie the pattern to the beginning or end of the string being searched.
^ may appear at the beginning of a pattern to require the match to occur at the very beginning of a line. For example, ^abc matches abc123 but not 123abc.
$ may appear at the end of a pattern to require the match to occur at the very end of a line. For example, abc$ matches 123abc but not abc123.
The two anchors may be combined. For example, ^abc$ matches only abc (i.e. there must be no other characters before or after it).
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| Code: | var1 := " "
var2 := " . "
Loop 2
{
if RegExMatch(var%A_Index%, "^\s*$")
MsgBox regex: var%A_Index% is blank.
else
MsgBox regex: var%A_Index% is not blank.
if var%A_Index% is space
MsgBox ifis: var%A_Index% is blank.
else
MsgBox ifis: var%A_Index% is not blank.
} |
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