正则表达式以匹配特定词并忽略特定文本

Question

i have a list of below error messages

def errorMessages = ["Line : 1 Invoice does not foot Reported"
                     "Line : 2 Could not parse INVOICE_DATE value"
                     "Line 3 : Could not parse ADJUSTMENT_AMOUNT value"
                     "Line 4 : MATH ERROR"
                     "cl_id is a required field"
                     "File Error : The file does not contain delimiters"
                     "lf_name is a required field"]

Am trying to create a new list which doesnt match the regex "^Line\\\\s(?:(\\\\d+)\\\\s)?\\\\s*:\\\\s+(\\\\d+)?.+" but has the text Invoice does not foot Reported

my desired new list should be like below

def headErrors= ["Line : 1 Invoice does not foot Reported"
                 "cl_id is a required field"
                 "File Error : The file does not contain delimiters"
                 "lf_name is a required field"]

this is what am doing for now

regex = "^Line\\s(?:(\\d+)\\s)?\\s*:\\s+(\\d+)?.+"
errorMessages.each{
    if(it.contains('Invoice does not foot Reported'))
        headErrors.add(it)
    else if(!it.matches(regex)
        headErrors.add(it)
}

Is there a way it can be done just using regex instead of if else?

Answer 1

1. At first match the line which contains the text Invoice does not foot Reported in the message part.

2. Then use a negative lookahead assertion at the start to not to match a line if it is startswith the chars which are actually matched by Line\\\\s(?:(\\\\d+)\\\\s)?\\\\s*:\\\\s+(\\\\d+)? pattern.

Regex:

"^Line\\s(?:(\\d+)\\s)?\\s*:\\s+(\\d+)?.*?Invoice does not foot Reported.*|^(?!Line\\s(?:(\\d+)\\s)?\\s*:\\s+(\\d+)?.*).+"

DEMO