note
moritz
<p>I'm not sure, but maybe such a structure is easier to create:
<pre>
┼┬┬┬┬┬a
│││││└b
││││└c
│││└┬d
│││ └e
││├┬┬┬f
│││││└g
││││└h
│││└┬┬i
│││ │└j
....
</pre>
<p>My inspiration is [https://github.com/perl6/std/blob/master/viv#L187] which produces parse trees like
<pre>
└─VAST::statementlist, BEG: 0, END: 7
├─VAST::statement, BEG: 0, END: 7
│ └─VAST::term__S_identifier, BEG: 0, END: 7, SYM: identifier, _from: 7,
│ │ _pos: 7, _specific: 1, dba: term, prec: z=
│ ├─VAST::identifier, BEG: 0, END: 3, TEXT: say
│ └─VAST::args, BEG: 3, END: 7, invocant: undef
│ └─VAST::arglist, BEG: 4, END: 7, WS: 1
│ └─VAST::term__S_value, BEG: 4, END: 6, SYM: value, WS: 1,
│ │ _specific: 1
│ └─VAST::value__S_number, BEG: 4, END: 6, SYM: number, WS: 1,
│ │ _specific: 1
│ └─VAST::number, BEG: 4, END: 6, WS: 1
│ └─VAST::integer, BEG: 4, END: 6, WS: 1
│ └─VAST::decint, BEG: 4, END: 6, TEXT: 42, WS: 1
└─VAST::eat_terminator, BEG: 7, END: 7, TEXT: , WS: 1
</pre>
<p><b>Update: </b> just today a Perl 6 solution for [http://rosettacode.org/wiki/Visualize_a_tree#Perl_6|Visualize a tree on rosettacode] was entered, it produces similar output:
<pre>
root
├─a
│ └─a1
│ └─a11
└─b
├─b1
│ └─b11
├─b2
└─b3
</pre>
<p>Shouldn't be to hard to port to Perl 5.
<!-- Node text goes above. Div tags should contain sig only -->
<div class="pmsig"><div class="pmsig-616540">
[http://perl6.org/|Perl 6 - the future is here, just unevenly distributed]
</div></div>
998803
998803