I was asked yesterday (and not for the first time) what my favourite programming language is - and I have to say that it depends on what I'm doing at the time. That's not a "political" answer in any way - as we choose to train only on languages that we're very happy indeed with.
I've just had a little "exercise" to do. I have a list of place names in Mexico, and (on the following line) the dialling code for each of them within the country - for example
Acapulco
74
Cancun
98
Celaya
461
Chihuahua
14
And I needed the data reformatted at one place per line, to include the extra digits for the international code too. Easy - the Perl program was just
while (<>) {
chop;
/^\d/ and print "0052$_ $place\n";
/^[[:alpha:]]/ and $place = $_;
}
And the output produced:
005274 Acapulco
005298 Cancun
0052461 Celaya
005214 Chihuahua
005216 Ciudad Juarez
005267 Culiacan
00523 Guadalajara
005262 Hermosillo
0052112 La Paz
0052113 Loreto
0052678 Mazatlan
005299 Merida
005265 Mexicali
00525 Mexico City
00528 Monterrey
005222 Puebla
0052322 Puerto Vallarta
005248 San Luis Potosi
005212 Tampico
005266 Tijuana
005217 Torreon
005229 Veracruz
0052492 Zacatecas Mexico Telmex
We're also often asked how we maintain so much information on this web site AND run courses every week (Tcl last week, Python next ...) and the answer is easy - by using Modern open source languages to provide us with helpful tools to do the job. I've used Perl for this page, and an hour or so ago I was adding data under a PHP page
See also
Topicalization in Perl - ideal for short data munging scripts
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At Well House Consultants, we provide
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