Google Chart Pie Chart macOS Korn Shell Tutorial
Around here at RJM Programming we encourage the adage “keeping busy” and “keep moving forward” (and sometimes sideways) even if that movement is a very nuanced moving forward. Today’s tutorial is a case in point, because even though a regular reader might say “what is new with this Google Chart Pie Chart macOS Korn Shell Tutorial to the recent Google Chart Geo Chart macOS Korn Shell Tutorial?” … we found the exercise of interest …
- partly because when you get in there and code, environmental differences can surprise … and …
- don’t underestimate how good it is to “retry a similar concept” and learn better ways (perhaps) of approaching coding problems, as it is very seldom we code a problem twice the same way (ask someone to quietly hive away some code you wrote, but ask you to rewrite it even a day later, compare, and I’d be surprised that the code is the same, if it involves any complexity)
At the macOS command line Korn Shell pie_chart.ksh end, different to Google Chart Geo Chart macOS Korn Shell Tutorial we involved …
- a new “__” forced delimitation regime between the “?” and “=” (ie. within the one web application’s argument’s name) to be certain of a one to one association of data items …
- we use (good ‘ol) sed as that brilliant command line “stream editor” … and can imagine more involved applications might benefit from the use of awk
- with the prompting progression, we back reference (via the good ‘ol Unix `[interpret me and clobber me with it]` backtick methodologies) variables we’ve already gleaned the value of, more … hence the use of echo “blah ${blah} blah” rather than echo ‘blah ${blah} blah’
At the PHP Google Chart Pie Chart pie_chart.php (web application changed …
<?php
// Command line Korn Shell interfacing code
if (!isset($_GET['data']) && !isset($_POST['data'])) {
if (strpos(strtolower(('' . $_SERVER['QUERY_STRING'])), 'listis=') !== false) {
$urlbase="https://www.rjmprogramming.com.au/PHP/PieChart/pie_chart.php";
$proposedform="<ht" . "ml><bo" . "dy onload=\"document.getElementById('clickme').click();\"><form id=myf style=display:none; target=_self action='" . $urlbase . "' method=POST><input type=hidden name=onclick value=y></input><input id=clickme type=submit value=Submit></input></form></body></html>";
$datavalis=explode("=", ('' . $_SERVER['QUERY_STRING']))[1];
$bitsbetween=["?title=", "&onclick=y&task=", "&desc=", "&data="];
$bitsap=explode("__", explode("=", explode("?", ('?' . $_SERVER['QUERY_STRING']))[1])[0]);
for ($iuy=0; $iuy<sizeof($bitsap); $iuy++) {
if (strtolower(str_replace("_", "%20", $bitsap[$iuy])) == "listis") {
$proposedform=str_replace(" method=POST>", " method=POST><input type=hidden name='" . explode("=", explode("&", substr($bitsbetween[$iuy],1))[-1 + sizeof(explode("&", substr($bitsbetween[$iuy],1)))])[0] . "' value='" . str_replace("+"," ",urldecode($datavalis)) . "'></input>", $proposedform);
$urlbase.=$bitsbetween[$iuy] . '' . str_replace(" ", "%20", str_replace("+"," ",urldecode($datavalis)));
} else {
$proposedform=str_replace(" method=POST>", " method=POST><input type=hidden name='" . explode("=", explode("&", substr($bitsbetween[$iuy],1))[-1 + sizeof(explode("&", substr($bitsbetween[$iuy],1)))])[0] . "' value='" . str_replace("_", " ", $bitsap[$iuy]) . "'></input>", $proposedform);
$urlbase.=$bitsbetween[$iuy] . '' . urlencode(str_replace("_", "%20", $bitsap[$iuy]));
}
}
if (strlen($urlbase) > 800) {
echo $proposedform;
} else {
header('Location: ' . $urlbase);
}
exit;
}
}
?>
… this way) interfacing end to allow for this command line “front interface” … different feeling to Google Chart Geo Chart macOS Korn Shell Tutorial …
- we do not resort to Javascript at all for short URL cases … and for the long ones …
- check for proposed URL length within PHP and navigate via an HTML form method=POST methodology
We’ll leave you with some Korn Shell code for this …
#!/bin/ksh
echo 'Interface to Google Chart Pie Chart interfacer created by RJM Programming ...'
echo ''
equl="="
prefd=",%20[~"
suffd="]%20"
echo "Verb for command line eg. open eg. curl "
read verb
if [ -z "$verb" ]; then
verb="open"
fi
if [ ! -z "$verb" ]; then
echo ''
echo "Enter Pie Chart title [My Daily Activities] "
read pie_chart_title
if [ -z "$pie_chart_title" ]; then
pie_chart_title="My Daily Activities"
fi
echo ''
echo "Enter ${pie_chart_title} Activity Type title [Task] "
pie_chart_title="`echo ${pie_chart_title} | sed '/ /s//_/g'`"
read activity_type_title
if [ -z "$activity_type_title" ]; then
activity_type_title="Task"
fi
if [ ! -z "$activity_type_title" ]; then
activitytypetitle="`echo ${activity_type_title}`"
echo ''
echo "Enter ${activity_type_title} Measure title [Percentage] "
activity_type_title="`echo ${activity_type_title} | sed '/ /s//_/g'`"
read measure_title
if [ -z "$measure_title" ]; then
measure_title="Percentage"
fi
measuretitle="`echo ${measure_title}`"
measure_title="`echo ${measure_title} | sed '/ /s//_/g'`"
echo ''
echo "Enter semicolon separated list of Pie Chart comma separated ${activitytypetitle},${measuretitle} data sets eg. Sleep,30;Work,30;Eating,10;Entertainment,20;Daily Chores,10 "
read commastring
if [ ! -z "$commastring" ]; then
cstring="`echo ${commastring} | sed '/,/s//~,/g' | sed '/;/s//]%20,%20[~/g'`"
commastring="`echo ${prefd}${cstring}${suffd}`"
echo ''
echo 'Starting the call ...'
rhs="`echo https://www.rjmprogramming.com.au/PHP/PieChart/pie_chart.php?${pie_chart_title}__${activity_type_title}__${measure_title}__listis${equl}${commastring} | sed '/ /s//%20/g'`"
echo "$verb ${rhs}"
ksh -c "$verb ${rhs}"
exit
fi
fi
fi
exit
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