Revisions to Sed command that would ignore any commented match

deleted 120 characters in body

Source Link

edited Apr 10, 2015 at 15:29

59.4k
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You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|*/|!{    s|/\*|\n&|              #if ! */ ...
       repl 1st \|/\*|!{             #and if* !w/ \n/* ...
     h;      s|foo|bar|g;/\n/!b  s|foo|bar|g;b    #repl#hold; repl all foo w/ bar, branch out...
    };  s||\n|;h             bar; #elseifif ! */ and /* repl 1st /* w/ \n;\n savebranch
        s|foo|bar|g;G         #replG; all foo w/ bar; Get save
 s|\n.*\n||;:n       s|\n.*\n|/*|;:n;n    #Get; #removeclear difference; :new label;label
 new line
   n;      \|*/|!bn;s|^|\n/*|    #if ! new#new lineline; if ! */; branch new label
     };s|*/|\n&|g                    #repl all */ w/ \n*/
       s|foo|&\nbar|g;:r             #repl all foo w/ foo\nbar
       s|\(/\*[^\n]*\)\nbar|\1|g;tr  #repl all /*[^\n]*\nbar w/ foo
       s|foo\n\(b\)|\1|g             #repl all foo\nbar w/ bar
       s|^\n/.||;s|\n||g             #clear any \n inserts
'    <<\INPUT
asfoo   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|*/|!{                  #if ! */ ...
         \|/\*|!{             #and if ! /* ...
             s|foo|bar|g;b    #repl all foo w/ bar, branch out...
    };  s||\n|;h              #elseif ! */ and /* repl 1st /* w/ \n; save
        s|foo|bar|g;G         #repl all foo w/ bar; Get save
        s|\n.*\n|/*|;:n;n     #remove difference; :new label; new line
        \|*/|!bn;s|^|\n/*|    #if ! new line */; branch new label
};s|*/|\n&|g                  #repl all */ w/ \n*/
s|foo|&\nbar|g;:r             #repl all foo w/ foo\nbar
s|\(/\*[^\n]*\)\nbar|\1|g;tr  #repl all /*[^\n]*\nbar w/ foo
s|foo\n\(b\)|\1|g             #repl all foo\nbar w/ bar
s|^\n/.||;s|\n||g             #clear any \n inserts
'    <<\INPUT
asfoo   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|*/|!{ s|/\*|\n&|              #if ! */ repl 1st /* w/ \n/*
     h;      s|foo|bar|g;/\n/!b      #hold; repl all foo/bar; if ! \n branch
     G;      s|\n.*\n||;:n           #Get; clear difference; :new label
     n;      \|*/|!bn;s|^|\n/*|      #new line; if ! */ branch new label
     };s|*/|\n&|g                    #repl all */ w/ \n*/
       s|foo|&\nbar|g;:r             #repl all foo w/ foo\nbar
       s|\(/\*[^\n]*\)\nbar|\1|g;tr  #repl all /*[^\n]*\nbar w/ foo
       s|foo\n\(b\)|\1|g             #repl all foo\nbar w/ bar
       s|^\n/.||;s|\n||g             #clear any \n inserts
'    <<\INPUT
asfoo   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

deleted 2 characters in body

Source Link

edited Apr 10, 2015 at 14:48

mikeserv

59.4k
10
122
242

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|*/|!{                  #if ! */ ...
         \|/\*|!{             #and if ! /* ...
             s|foo|bar|g;b    #repl all foo w/ bar, branch out...
    };  s||\n|;h              #elseif ! */ and /* repl 1st /* w/ \n; save
        s|foo|bar|g;G         #repl all foo w/ bar; Get save
        s|\n.*\n|/*|;:n;n     #remove difference; :new label; new line
        \|*/|!bn;s|^|\n/*|    #if ! new line */; branch new label
};s|*/|\n&|g                  #repl all */ w/ \n*/
s|foo|&\nbar|g;:r             #repl all foo w/ foo\nbar
s|\(/\*[^\n]*\)\nbar|\1|g;tr  #repl all /*[^\n]*\nbar w/ foo
s|foo\n\(b\)|\1|g             #repl all foo\nbar w/ bar
s|^\n/.||;s|\n||g             #clear any \n inserts
'    <<\INPUT
asfoo   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|*/|!{ 
         \|/\*|!{ 
             s|foo|bar|g;b
    };  s||\n|;h
        s|foo|bar|g;G
        s|\n.*\n|/*|;:n;n
        \|*/|!bn;s|^|\n/*|
};s|*/|\n&|g
s|foo|&\nbar|g;:r
s|\(/\*[^\n]*\)\nbar|\1|g;tr
s|foo\n\(b\)|\1|g
s|^\n/.||;s|\n||g
'    <<\INPUT
asfoo   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|*/|!{                  #if ! */ ...
         \|/\*|!{             #and if ! /* ...
             s|foo|bar|g;b    #repl all foo w/ bar, branch out...
    };  s||\n|;h              #elseif ! */ and /* repl 1st /* w/ \n; save
        s|foo|bar|g;G         #repl all foo w/ bar; Get save
        s|\n.*\n|/*|;:n;n     #remove difference; :new label; new line
        \|*/|!bn;s|^|\n/*|    #if ! new line */; branch new label
};s|*/|\n&|g                  #repl all */ w/ \n*/
s|foo|&\nbar|g;:r             #repl all foo w/ foo\nbar
s|\(/\*[^\n]*\)\nbar|\1|g;tr  #repl all /*[^\n]*\nbar w/ foo
s|foo\n\(b\)|\1|g             #repl all foo\nbar w/ bar
s|^\n/.||;s|\n||g             #clear any \n inserts
'    <<\INPUT
asfoo   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

deleted 2 characters in body

Source Link

edited Apr 10, 2015 at 14:37

mikeserv

59.4k
10
122
242

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|^\n|,\|*'\|*/|!{
    
         \|*\|/|\*|!{ s|...||p;:n;N
                    s|\n|&&/*|;Ds|foo|bar|g;b
     };};\|*/|!{
            \|/\*|{ s||\n|;h
                    s|foo|bar|g;G
                    s|\n.*\n|/*|p;bn*|;:n;n
    };      s|foo|bar|g;b\|*/|!bn;s|^|\n/*|
    };s||\n&|g;s|*/|\n&|g
      s|foo|&\nbar|g;:r
      s|\(/\*[^\n]*\)\nbar|\1|g;tr
      s|foo\n\(b\)|\1|g
      s|^\n/.||;s|\n||g
'    <<\INPUT
asfoo   /* asdfooasdfoo 


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo 


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|^\n|,\|*/|{
            \|*/|!{ s|...||p;:n;N
                    s|\n|&&/*|;D
     };};\|*/|!{
            \|/\*|{ s||\n|;h
                    s|foo|bar|g;G
                    s|\n.*\n|/*|p;bn
    };      s|foo|bar|g;b
    };s||\n&|g
      s|foo|&\nbar|g;:r
      s|\(/\*[^\n]*\)\nbar|\1|g;tr
      s|foo\n\(b\)|\1|g
      s|^\n/.||;s|\n||g
'    <<\INPUT
asfoo   /* asdfooasdfoo
asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
INPUT

###OUTPUT

asbar   /* asdfooasdfoo
asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar

You should not believe them if they tell you it cannot be done. You should believe them, however, if they tell you it's not easy.

sed '\|*/|!{  
         \|/\*|!{ 
             s|foo|bar|g;b
    };  s||\n|;h
        s|foo|bar|g;G
        s|\n.*\n|/*|;:n;n
        \|*/|!bn;s|^|\n/*|
};s|*/|\n&|g
s|foo|&\nbar|g;:r
s|\(/\*[^\n]*\)\nbar|\1|g;tr
s|foo\n\(b\)|\1|g
s|^\n/.||;s|\n||g
'    <<\INPUT
asfoo   /* asdfooasdfoo 


asdfasdfoo
asdfasdfoo
foo */foo /*foo*/ foo
/*.
foo*/
foo
hello

INPUT

###OUTPUT

asbar   /* asdfooasdfoo 


asdfasdfoo
asdfasdfoo
foo */bar /*foo*/ bar
/*.
foo*/
bar
hello

deleted 40 characters in body

Source Link

edited Apr 10, 2015 at 11:58

mikeserv

59.4k
10
122
242

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Source Link

answered Apr 10, 2015 at 11:48

mikeserv

59.4k
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122
242

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