diff options
Diffstat (limited to 'pod/perldsc.pod')
| -rw-r--r-- | pod/perldsc.pod | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/pod/perldsc.pod b/pod/perldsc.pod index 5ab97e1795..11304a67ac 100644 --- a/pod/perldsc.pod +++ b/pod/perldsc.pod @@ -15,7 +15,7 @@ hacked Perl's internal symbol table directly, a strategy that proved hard to develop and maintain--to put it mildly. The 5.0 release of Perl let us have complex data structures. You -may now write something like this and all of a sudden, you'd have a array +may now write something like this and all of a sudden, you'd have an array with three dimensions! for $x (1 .. 10) { @@ -32,7 +32,7 @@ elaborate construct than meets the eye! How do you print it out? Why can't you say just C<print @AoA>? How do you sort it? How can you pass it to a function or get one of these back -from a function? Is is an object? Can you save it to disk to read +from a function? Is it an object? Can you save it to disk to read back later? How do you access whole rows or columns of that matrix? Do all the values have to be numeric? @@ -76,7 +76,7 @@ one-dimensional. They can hold only scalar values (meaning a string, number, or a reference). They cannot directly contain other arrays or hashes, but instead contain I<references> to other arrays or hashes. -You can't use a reference to a array or hash in quite the same way that you +You can't use a reference to an array or hash in quite the same way that you would a real array or hash. For C or C++ programmers unused to distinguishing between arrays and pointers to the same, this can be confusing. If so, just think of it as the difference between a structure @@ -332,7 +332,7 @@ types of data structures. =head1 ARRAYS OF ARRAYS -=head2 Declaration of a ARRAY OF ARRAYS +=head2 Declaration of an ARRAY OF ARRAYS @AoA = ( [ "fred", "barney" ], @@ -340,7 +340,7 @@ types of data structures. [ "homer", "marge", "bart" ], ); -=head2 Generation of a ARRAY OF ARRAYS +=head2 Generation of an ARRAY OF ARRAYS # reading from file while ( <> ) { @@ -361,7 +361,7 @@ types of data structures. # add to an existing row push @{ $AoA[0] }, "wilma", "betty"; -=head2 Access and Printing of a ARRAY OF ARRAYS +=head2 Access and Printing of an ARRAY OF ARRAYS # one element $AoA[0][0] = "Fred"; @@ -466,7 +466,7 @@ types of data structures. =head1 ARRAYS OF HASHES -=head2 Declaration of a ARRAY OF HASHES +=head2 Declaration of an ARRAY OF HASHES @AoH = ( { @@ -485,7 +485,7 @@ types of data structures. } ); -=head2 Generation of a ARRAY OF HASHES +=head2 Generation of an ARRAY OF HASHES # reading from file # format: LEAD=fred FRIEND=barney @@ -521,7 +521,7 @@ types of data structures. $AoH[0]{pet} = "dino"; $AoH[2]{pet} = "santa's little helper"; -=head2 Access and Printing of a ARRAY OF HASHES +=head2 Access and Printing of an ARRAY OF HASHES # one element $AoH[0]{lead} = "fred"; |