CODEWITHSUNDEEP
javascriptregex
JoJo
JoJo

Reputation: 125

Regex - regular expression match string exactly

I am using regular expression in adobe javascript to find a string of words in a drawing title block. Starting with a number (1) then a date then a varying number of words and 4 sets of initials

var re = new RegExp(1+"\\s\\d{1,2}\\.\\d{1,2}\\.\\d{2,4}\\s\\w+(?:\\s+\\w+){1,9}\\s([A-Z]{2,7})\\s([A-Z]{2,7})\\s([A-Z]{2,7})\\s([A-Z]{2,7})");

The drawing title block example has the following:

1 20.09.16 CHANGES FOR THIS TESTING SB SB BW CR

0 29.07.16 APPROVED FOR CONSTRUCTION MM SB BW GM

The regular expression result is

FOR CONSTRUCTION MM SB BW GM 1 20.09.16 CHANGES FOR THIS TESTING SB SB

I need the regular expression to be

1 20.09.16 CHAINAGES FOR THIS TEST SB SB BW CR

Can anyone advise how to find the exact match starting with the 1 and not random text as shown in the result.

Many thanks for any assistance.

Note: modified regex below works

var re = new RegExp(/^1\s\d{1,2}\.\d{1,2}\.\d{2,4}\s\w+(?:\s+\w+){1,10}\s([A-Z]{2,2})\s([A-Z]{2,2})\s([A-Z]{2,2})\s([A-Z]{2,2})$/g);

I need to replace the 1 at the beginning of the regex from text to a variable.

The regex starts with ^ first then the javascript variable then the regex

var re = new RegExp("//^"+firstWord+"\\s\\d{1,2}\\.\\d{1,2}\\.\\d{2,4}\\s\\w+(?:\\s+\\w+){1,9}\\s([A-Z]{2,4})\\s([A-Z]{2,4})\\s([A-Z]{2,4})\\s([A-Z]{2,4})$//g");

The regex is not working, can anyone advise how to combine java variable with regex?

Upvotes: 0

Views: 213

Answers (1)

davidhu
davidhu

Reputation: 10434

I'm not sure why your result turned out like that, but if you just do 

var str = '1 20.09.16 CHANGES FOR THIS TESTING SB SB BW CR 0 29.07.16 APPROVED FOR CONSTRUCTION MM SB BW GM'

var result = str.match(/1\s\d{1,2}\.\d{1,2}\.\d{2,4}\s\w+(?:\s+\w+){1,9}\s([A-Z]{2,7})\s([A-Z]{2,7})\s([A-Z]{2,7})\s([A-Z]{2,7})/g)

This return

[ '1 20.09.16 CHANGES FOR THIS TESTING SB SB BW CR' ]

To get the string, you just need to do result[0]

Upvotes: 1

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