Insert comma before a value if it is blank - powershell

Question

Below is the data I have
-Ignored:31,Modified,src,data,all,*file,MINOSFIC/UTMNUP10
-Ignored:33,Modified,src,&,tgt,data,all,*file,MINOSFIC/UVEGAP10
-Ignored:92,Synchro,is,running,*file,MINOSFIC/VM010P50
-Ignored:01,Object,hold,(synchro),*file,MINOSFIC/VM010U51
here I am parsing the data and keeping in csv
for 1st and 2nd line it is working but when it is coming to 3rd and 4th line, it is pushing the column value one forward as there is no data before *file
Please let me know how to handle this. how to insert a comma before *file if there is not entry (like for first 2 line it is all)
$allIGfiles = Get-ChildItem -Path 'C:\LG2' -Recurse -Filter "*LG_VFN*"
foreach($file in $allIGfiles)
{
$filename = $file.FullName
$data = Get-Content $filename | Select -SkipLast 1
$Lines = #()
foreach ($line in $data){
if($line -match "Ignored")
{
$Lines+=$line
}
}
$NewLines = #($Lines | % { ($_ -replace "\s{2,}",",") -replace "(\d) ", '$1,'} )
$NewLines | Export-Csv 'c:\file.csv' -append -NoTypeInformation
Original data
-Ignored:31 Modified src data all *file MINOSFIC/UTMNUP10
-Ignored:33 Modified src & tgt data all *file MINOSFIC/UVEGAP10
-Ignored:92 Synchro is running *file MINOSFIC/VM010P50
-Ignored:01 Object hold (synchro) *file MINOSFIC/VM010U51
Update:
I am now getting the data like below but when i am trying to put it in csv it is only writing numbers to the file
-Ignored:31,Modified src data,all *file,MINOSFIC/UTMNUP10
-Ignored:33,Modified src & tgt data,all *file,MINOSFIC/UVEGAP10
-Ignored:92,Synchro is running,*file,MINOSFIC/VM010P50
-Ignored:01,Object hold (synchro),*file,MINOSFIC/VM010U51
-Ignored:01,Object hold (synchro),*file,MINOSFIC/VM010U52
-Ignored:01,Object hold (synchro),*file,MINOSFIC/VM010U53
-Ignored:01,Object hold (synchro),*file,MINOSFIC/VM010U54
Data with other code
Object OK (partial) 97% *file MINOSFIC/VM011P10
-Ignored:18 Object hold *file MINOSFIC/VM011P50
Object OK (partial) 78% *file MINOSFIC/VM800P30
*Error: 09 Diff. Creation date *file MINOSSVG/S100000702
*Error: 09 Diff. Creation date *file MINOSSVG/S100000805
-Ignored:18 Object hold *file MINOSSVG/S100001154
*Error: 09 Diff. Creation date *file MINOSSVG/S100001227

Answer 1

You could do this by using a regex that at first ignores the all value, but when constructing the comma separated new string, this will be inserted when found:
Read the file as string array
$data = Get-Content -Path $filename
I'm faking that by using a Here-String below:
$data = #"
-Ignored:31 Modified src data all *file MINOSFIC/UTMNUP10
-Ignored:33 Modified src & tgt data all *file MINOSFIC/UVEGAP10
-Ignored:92 Synchro is running *file MINOSFIC/VM010P50
-Ignored:01 Object hold (synchro) *file MINOSFIC/VM010U51
"# -split '\r?\n'
$result = foreach ($line in $data) {
if ($line -match '^(-Ignored:\d+)\s+(.+)\s+(\*file)\s+(.*)') {
'{0},{1},{2},{3},{4}' -f $matches[1],
($matches[2] -replace 'all$').Trim(),
($matches[2] -split '\s{2,}')[-1],
$matches[3],
$matches[4]
}
}
# output to console screen
$result
# write to file
$result | Set-Content -Path 'X:\TheNewFile.txt'
Output:
-Ignored:31,Modified src data,all,*file,MINOSFIC/UTMNUP10
-Ignored:33,Modified src & tgt data,all,*file,MINOSFIC/UVEGAP10
-Ignored:92,Synchro is running,,*file,MINOSFIC/VM010P50
-Ignored:01,Object hold (synchro),,*file,MINOSFIC/VM010U51
To also do this with *Error.. lines as in your updated example, change the line
if ($line -match '^(-Ignored:\d+)\s+(.+)\s+(\*file)\s+(.*)') {
into
if ($line -match '^((?:-Ignored|\*Error):\s*\d+)\s+(.+)\s+(\*file)\s+(.*)') {
Regex details:
^ Assert position at the beginning of a line (at beginning of the string or after a line break character)
( Match the regular expression below and capture its match into backreference number 1
(?: Match the regular expression below
Match either the regular expression below (attempting the next alternative only if this one fails)
-Ignored Match the characters “-Ignored” literally
| Or match regular expression number 2 below (the entire group fails if this one fails to match)
\* Match the character “*” literally
Error Match the characters “Error” literally
)
: Match the character “:” literally
\s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
* Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\d Match a single digit 0..9
+ Between one and unlimited times, as many times as possible, giving back as needed (greedy)
)
\s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
+ Between one and unlimited times, as many times as possible, giving back as needed (greedy)
( Match the regular expression below and capture its match into backreference number 2
. Match any single character that is not a line break character
+ Between one and unlimited times, as many times as possible, giving back as needed (greedy)
)
\s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
+ Between one and unlimited times, as many times as possible, giving back as needed (greedy)
( Match the regular expression below and capture its match into backreference number 3
\* Match the character “*” literally
file Match the characters “file” literally
)
\s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
+ Between one and unlimited times, as many times as possible, giving back as needed (greedy)
( Match the regular expression below and capture its match into backreference number 4
. Match any single character that is not a line break character
* Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
)

Answer 2

One approach is to first replace two consecutive spaces with a comma. Then replace digit followed with a space with the same digit via capture group and a comma. Like so,
$data=#(
'-Ignored:31 Modified src data all *file MINOSFIC/UTMNUP10',
'-Ignored:33 Modified src & tgt data all *file MINOSFIC/UVEGAP10',
'-Ignored:92 Synchro is running *file MINOSFIC/VM010P50',
'-Ignored:01 Object hold (synchro) *file MINOSFIC/VM010U51')
$data | % { ($_ -replace "\s{2,}",",") -replace "(\d) ", '$1,'}
-Ignored:31,Modified src data,all *file,MINOSFIC/UTMNUP10
-Ignored:33,Modified src & tgt data,all *file,MINOSFIC/UVEGAP10
-Ignored:92,Synchro is running,*file,MINOSFIC/VM010P50
-Ignored:01,Object hold (synchro),*file,MINOSFIC/VM010U51
This would get all *file in same column as *file. Should that not be enough, use ConvertFrom-String or do another replacement to introduce the missing column. As of how, you probably need to calculate how many commas there are and deduct from that if the column is needed.