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Update awk.html.markdown

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The `gsub` example is incorrect: with pattern `"e+"`, one gets `"m.t m. at th. bar"`. To get  `"m..t m. at th. bar"` as documented, the pattern is just `"e"`. Otherwise we could keep "e+" but change the result.

Also removed an extra dot at the end of a sentence.
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Frédéric G. MARAND 2022-07-09 22:33:23 +02:00 committed by GitHub
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commit e4655963c2
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1 changed files with 2 additions and 2 deletions
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@ -48,7 +48,7 @@ BEGIN {
# the preliminary set-up code, before you process any text files. If you
# have no text files, then think of BEGIN as the main entry point.
# Variables are global. Just set them or use them, no need to declare..
# Variables are global. Just set them or use them, no need to declare.
count = 0;
# Operators just like in C and friends
@ -209,7 +209,7 @@ function string_functions( localvar, arr) {
# Both return number of matches replaced
localvar = "fooooobar";
sub("fo+", "Meet me at the ", localvar); # localvar => "Meet me at the bar"
gsub("e+", ".", localvar); # localvar => "m..t m. at th. bar"
gsub("e", ".", localvar); # localvar => "m..t m. at th. bar"
# Search for a string that matches a regular expression
# index() does the same thing, but doesn't allow a regular expression