AWK: Backslash \ and forcing output not to go onto new lines
Dear all,
I am using Mac OSX, have been successfully written an awk script during the last days. I use the script to convert parts of a .dot-file into graphml code.
First question: Backslash
My .dot-code includes repeatedly the sign "\n".
I would like to search for this sign and substitute it.
This does not provide the effect:
.
(Substituting "assumption" works without problems.)
Do you have any hint of how to get the sign "\n" substituted?
Second question: forcing output not to go onto new lines
I wonder if a simple way exists to tell awk to put a number of outputs onto the same line:
awk reads in from asource file a line word by word. i want to print some words, alter some and then print them, and again simply print some together with some additional information of mine ("info").
Code:
do
{
labelword_cleaned = $labelword;
sub("\",", " ", labelword_cleaned);
if(labelword_cleaned~/:\\n/) {
print "Old: " labelword_cleaned; sub("\\\n", " ", labelword_cleaned);
print "New: " labelword_cleaned;
}
print labelword_cleaned
if($labelword~/\"/) {
# This bit of code brings us out of here if we encounter an '"'.
break};
++labelword;
} while(labelword<80);
This operation acts on up to 80 words of a line. i want the out put (i.e. cleaned up words) to go on one line, without any linebreaks.
Yes you can alter some words and add your info in awk. Awk reads word based on delimiter supplied to it and holds words in predefined awk variables $1, $2 ,$3... $NF.
regarding the second question: this is the code of my function (which I call as labeling(2)):
Code:
function labeling(startlabel_is_n_word) { # This function aims to extract the label of nodes/edges from the .dot file.
sub("\",", " ", $startlabel_is_n_word);
print substr($startlabel_is_n_word, 9) #this prints the string starting with '[label="ActualLabel' as 'ActualLabel'.
labelword=startlabel_is_n_word+1;
if($labelword~/\"/) {} else {
do
{
labelword_cleaned = $labelword;
sub("\",", " ", labelword_cleaned);
sub("\\\\n", "\n", labelword_cleaned);
print labelword_cleaned
if($labelword~/\"/) {
# This bit of code brings us out of here if we encounter an '"'.
break}
++labelword;
} while(labelword<80);
}
};
The relevant bit here is do {...}.
Thus, I want to apply this bit on each string, starting with $2 and ending with string $80.
My input looks like this:
Code:
cset0 [label="How are members (not) exact?:\n2>assumption>approximation_improved",
awk transforms this now into
Code:
How
are
members
(not)
exact?:
2>assumption>approximation_improved
How would I need to rewrite this code to have as output:
Code:
How are members (not) exact?: 2>assumption>approximation_improved
function labeling(startlabel_is_n_word) { # This function aims to extract the label of nodes/edges from the .dot file.
sub("\",", " ", $startlabel_is_n_word);
printf "%s",substr($startlabel_is_n_word, 9) #this prints the string starting with '[label="ActualLabel' as 'ActualLabel'.
labelword=startlabel_is_n_word+1;
if($labelword~/\"/) {} else {
do
{
labelword_cleaned = $labelword;
sub("\",", " ", labelword_cleaned);
sub("\\\\n", "\n", labelword_cleaned);
printf "%s",labelword_cleaned
if($labelword~/\"/) {
# This bit of code brings us out of here if we encounter an '"'.
break}
++labelword;
} while(labelword<80);
}
printf "\n"
};
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