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Modify text file if found multiple pattern match for every line.

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# 8  
Old 08-16-2018
OS: window xp, 7 and 10.
shell :MKS kornshell

sed version , i trying sed --version it not work.

i means the 2 request i'm asking if can split it to 2 difference code line.
# 9  
Old 08-16-2018
From mkssoftware.com:
Quote:
a,bb [label] branches to label. If you omit label, sed branches to the end of the script.
, so the script should work as given unless something weird happened when copying it. Try to add a space between b and ; .
Your request to split can't be satisfied that easy as the two are interwoven.
# 10  
Old 08-16-2018
Here is a multi-line sed script that does substitutions in the first ! IPG block only.
Code:
sed '
  /^! IPG: /{
    a\
\
testplan generation off
    :Loop
    n
    /^! IPG: /b
    /; permanent/bLoop
    /^ *$/bLoop
    s/; /&permanent, /
    tLoop
    s/$/; permanent/
    bLoop
  }
' file

The Unix sed has some shortcomings:
  1. The "label parser" treats a semicolon and trailing spaces as part of the label. A newline is a must. The man page only mentions the maximum length of 7 (or 8) characters.
  2. Before and after a } there must be a semicolon or newline. In some Unix sed versions a semicolon can lead to a wrong behavior; only the newlines are safe, i.e. place the } on a dedicated line. On some systems the man page says "only newlines allowed".
  3. An addtional -e is like a newline. So you can have -e '...;:label' -e '...' and -e '...' -e '}' -e '...'
Last edited by MadeInGermany; 08-16-2018 at 01:09 PM..
# 11  
Old 08-16-2018
Quote:
Originally Posted by MadeInGermany
Here is a multi-line sed script that does substitutions in the first ! IPG block only.
Code:
sed '
  /^! IPG: /{
    a\
\
testplan generation off
    :Loop
    n
    /^! IPG: /b
    /; permanent/bLoop
    /^ *$/bLoop
    s/; /&permanent, /
    tLoop
    s/$/; permanent/
    bLoop
  }
' file

The Unix sed has some shortcomings:
  1. The "label parser" treats a semicolon and trailing spaces as part of the label. A newline is a must. The man page only mentions the maximum length of 7 (or 8) characters.
  2. Before and after a } there must be a semicolon or newline. In some Unix sed versions a semicolon can lead to a wrong behavior; only the newlines are safe, i.e. place the } on a dedicated line. On some systems the man page says "only newlines allowed".
  3. An addtional -e is like a newline. So you can have -e '...;:label' -e '...' and -e '...' -e '}' -e '...'

Thank for reply, below is the output i get.
-testplan generation off is show at every line when it meet IPG, can it just show at 1st meet only?
permenent are not added , it only add after 2nd IPG meet, and it add to board 3 to 3 , can it just add if found "?
-and it not modify the file directly, i need to > to other file name, instate of using same file name.



Code:
!!!!   14    0    1 1533623476   0000                                         
! IPG: Tue Aug 07 14:31:17 2018

testplan generation off
! IPG: board type 00851-1712
boards 2 to 2
test shorts "shorts"
test capacitor "c488"; nulltest !tested in parallel with c480
test capacitor "c588"; nulltest !tested in parallel with c480
test analog powered "sp-p6"; comment
test digital "u423"
! IPG: board type 00851-1715

testplan generation off
boards 3 to 3; permanent
test shorts "shorts"; permanent
test capacitor "c590"; permanent
test capacitor "c591"; permanent, nulltest !tested in parallel with c590
test analog powered "bp-test"; permanent, comment

! IPG: board type 00860-0106
boards 1 to 1
test shorts "shorts"
test pins "pins"
test capacitor ".discharge"
test capacitor "c102"
test analog powered "u511%opamp_o_1"

# 12  
Old 08-17-2018
Did you try to apply the insight that MadeInGermany gave to the proposal in post#5?
# 13  
Old 08-17-2018
In my attempt to substitute only in the first ! IPG block I have not seen that the whole thing repeats with every 2nd ! IPG.
Because you seem to want substitutions in all blocks anyway, you can simply change the b (leave the loop) to bLoop (continue the loop):
Code:
    /^! IPG: /bLoop

# 14  
Old 08-23-2018
Hi Rubic,

i'm trying search web on it , but still unable to future to understand,

Quote:
Originally Posted by MadeInGermany
In my attempt to substitute only in the first ! IPG block I have not seen that the whole thing repeats with every 2nd ! IPG.
Because you seem to want substitutions in all blocks anyway, you can simply change the b (leave the loop) to bLoop (continue the loop):
Code:
    /^! IPG: /bLoop


testplan generation off
! IPG: board type 00851-1712
boards 2 to 2; permanent
test shorts "shorts"; permanent
test pins "pins"; permanent

this still come out.

Thank alot.

sorry that im 0 knowledge on, i trying to figure up what happen on it but unable to found it.
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