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|Awk - Layout Functions |
|Written by Wim Stockman - on 06 Oct 2020|
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Awk is by far my favourite tool: So here is some need trick:
Some Useful Awk Layout Function to line out your Plain Text
for your gopher page for instance
1. The first function left fills with a paddingchar:
'''CodeSnippet
function leftfill(text,width,paddingchar){
if(!paddingchar){paddingchar=" ";}
size=length(text)+1;
out="";
for(i=size;i<=width;i++){ out = out paddingchar;}
out = out text;
paddingchar=" " ;
print(out);
}
'''
Which fills up the left side of your text with a paddinchar.
Default Paddingchar is <space>
Usage: leftfill(Text,75,"-");
Example:
-----------------------------------------------------------------Left Fill
2. The centertext function centers the text in your giving width
'''CodeSnippet
function centertext(text,width,paddingchar) {
size=length(text);
out="";
insertpos=int((width-size)/2);
if(!paddingchar){paddingchar=" ";}
for(i=0;i<=width;i++)
{
if(i==insertpos) {out= out text; i=i+size}
else { out = out paddingchar; }
}
print(out);
}
'''
and you can add a paddingchar to fill up both left and rigt side
Default Paddingchar is <space>
Usage: centertex(text,width,"-")
Example:
-------------------------------Center Text--------------------------------
3. Rightfill with a paddingchar:
'''CodeSnippet
function rightfill(text,width,paddingchar) {
if(!paddingchar){paddingchar=" ";}
size=length(text)+1;
out=text;
for(i=size;i<=width;i++){ out = out paddingchar;}
paddingchar=" " ;
print(out);
}
'''
Which fills up the right side of your text with a paddinchar.
Default Paddingchar is <space>
Usage: rightfill(Text,75,"-");
Right Fill----------------------------------------------------------------
To Use these awk function inside your awk scripts you can copy and paste them
or save them to a file:e.g. layout_func.awk
and include them with the:
@include layout_func.awk
To use it on the command line for example creating a cool gopher page Title
you can use it:
awk -f layout_func.awk '{centertext($0,75,"-")}'
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|Suggestions?
[email protected] |
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