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Also available are POE::Loop::Tk and POE::Loop::Gtk which offer hooks into other loop bridges in the external environment. If that isn't enough, the POE::Loop kernel abstraction provides reusable signal callbacks, time or alarm callbacks, and filehandle activity callbacks as well as administrative functions such as initializing, executing, and ...
The loop control keywords are treated as expressions in Perl, not as statements like in C or Java. The next keyword jumps directly to the end of the current iteration of the loop. This usually causes the next iteration of the loop to be started, but the continue block and loop condition are evaluated first.
This searches in all files in the current directory and its subdirectories whose name end in .foo for occurrences of the string bar.The parallel command will work as expected unless a file name contains a newline.
Sometimes within the body of a loop there is a desire to skip the remainder of the loop body and continue with the next iteration of the loop. Some languages provide a statement such as continue (most languages), skip , [ 8 ] cycle (Fortran), or next (Perl and Ruby), which will do this.
Originally, filehandles could only be created with package variables, using the ALL_CAPS convention to distinguish it from other variables. Perl 5.6 and newer also accept a scalar variable, which will be set (autovivified) to a reference to an anonymous filehandle, in place of a named filehandle.
In one call, she gave him Verna’s address and her daily routine. They also settled on a price. "$5,000 for the girl. $2,500 for the mother," he said.
In Perl, there is a variant of the goto statement that is not a traditional GOTO statement at all. It takes a function name and transfers control by effectively substituting one function call for another (a tail call ): the new function will not return to the GOTO, but instead to the place from which the original function was called.
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