checking cell value in csv and formatting in HTML using awk - awk

Question

#!/usr/bin/awk -f
BEGIN {
FS=","
print "<table>"
}
{
gsub(/</, "\\<")
gsub(/>/, "\\>")
gsub(/&/, "\\>")
print "\t<tr>"
for(f = 1; f <= NF; f++) {
if(NR == 1 && header) {
printf "\t\t<th>%s</th>\n", $f
}
else printf "\t\t<td>%s</td>\n", $f
}
print "\t</tr>"
}
END {
print "</table>"
}
how to check value of $f inside loop if cell value contains "No" then how to print using
printf("<TD class=AltGreen align=right height="17" width="5%">%s</TD>\n",$f)
instead of printf "\t\t<td>%s</td>\n", $f
Input.csv
USA,NO,45
UK,YES,90*

Answer 1

I have made a couple of changes to your original logic in Awk
To remove the empty spaces from the $f fields, while parsing in a loop
Include check for $f to string NO
The Awk code I use as follows,
#!/usr/bin/awk -f
BEGIN {
FS=","
print "<table>"
}
{
gsub(/</, "\\<")
gsub(/>/, "\\>")
gsub(/&/, "\\>")
print "\t<tr>"
for(f = 1; f <= NF; f++) {
gsub(/ /, "", $f)
if(NR == 1 && header) {
printf "\t\t<th>%s</th>\n", $f
}
else if ( $f == "NO" ) {
printf "\t\t<TD class=AltGreen align=right height=\"17\" width=\"5%\">%s</TD>\n",$f
}
else printf "\t\t<td>%s</td>\n", $f
}
print "\t</tr>"
}
END {
print "</table>"
}
produced an output as
<table>
<tr>
<td>USA</td>
<TD class=AltGreen align=right height="17" width="5%">NO</TD>
<td>45</td>
</tr>
<tr>
<td>UK</td>
<td>YES</td>
<td>90*</td>
</tr>
</table>

Answer 2

#!/usr/bin/awk -f
BEGIN {
#header = 1
# for the no in OP and NO in sample
IGNORECASE = 1
FS=","
print "<table>"
}
{
gsub(/</, "\\<")
gsub(/>/, "\\>")
gsub(/&/, "\\>")
print "\t<tr>"
for(f = 1; f <= NF; f++) {
if(NR == 1 && header) {
printf "\t\t<th>%s</th>\n", $f
}
else {
# your NO filtering
if ( $f ~ /^NO$/) {
printf("<TD class=AltGreen align=right height=\"17\" width=\"5%\">%s</TD>\n", $f)
else {
printf "\t\t<td>%s</td>\n", $f
}
}
}
print "\t</tr>"
}
END {
print "</table>"
}
i just modify a bit your code to keep it the most as you do.
use $f ~ //
I add IGNORECASE, 0 for case sensitive, 1 not
adapt your double quote for quoted value of HTML output

Answer 3

Some remarks:
I think you want to replace gsub(/&/, "\\>") with gsub(/&/, "\\&").
You do not need header when you check on NR.
When you want to check on "NO" in the header too, you can do something like
echo "USA,NO,45
UK,YES,90*" | awk '
BEGIN {
FS=","
print "<table>"
}
{
gsub(/</, "\\<")
gsub(/>/, "\\>")
gsub(/&/, "\\&")
print "\t<tr>"
if(NR==1) {
tag="th"
} else {
tag="td"
}
for (f = 1; f <= NF; f++) {
if ( $f =="NO") {
printf("<%s class=AltGreen align=right height=\"17\" width=\"5%%\">%s</%s>\n",
tag, $f, tag)
} else {
printf "\t\t<%s>%s</%s>\n", tag, $f, tag
}
}
print "\t</tr>"
}