Regular expression (RegEx) not working

Question

I need a regular expression that matches a String at the beginning of the input which satisfies following conditions:

I have this expression so far:

^([a-zA-Z]+[a-zA-Z0-9 ]*[a-zA-Z0-9]+)|[a-zA-Z]

The OR statement in the expression is to allow a String that consists of one letter.

The problem is that the second part of the OR statement is always preferred, so when the input is query1, it matches only q.

How can I solve this problem?

Is there a way to simplify the expression? My way seems a little to complex for this relatively simple case.

vks · Accepted Answer · 2015-10-19 10:00:50Z

1

^([a-zA-Z]+[a-zA-Z0-9 ]*[a-zA-Z0-9]+)$|^[a-zA-Z]$

You can make use of ^$ anchors to imply that that it is only for single letter string

answered Oct 19, 2015 at 10:00

vks

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Comments

anubhava · Accepted Answer · 2015-10-19 10:01:13Z

1

You can use this regex to satisfy all conditions:

^[a-zA-Z](?:[a-zA-Z0-9 ]*[a-zA-Z0-9])?$

answered Oct 19, 2015 at 10:01

anubhava

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Manvendra_0611 · Accepted Answer · 2015-10-19 10:28:05Z

0

Regex to match with a character at the start, character, number or spaces in between and ends with character or number:

^[a-z|A-Z][a-z|A-Z|0-9| ]*[a-z|A-Z|0-9]$

answered Oct 19, 2015 at 10:28

Manvendra_0611

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