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102 | package Torello.HTML;
import Torello.Java.LV;
import Torello.Java.StrFilter;
import java.util.Vector;
import java.util.stream.IntStream;
class UsingStrFilter
{
static int[] filter(
final Vector<? super TagNode> html,
final int sPos,
final int ePos,
final StrFilter filter
)
{
// Save the list of modified TagNode's in a Java Stream
IntStream.Builder b = IntStream.builder();
// Temp Var, Loop Variable
LV l = new LV(sPos, ePos, html);
TagNode tn;
for (int i=l.start; i < l.end; i++)
if ((tn = ((HTMLNode) html.elementAt(i)).openTagPWA()) != null)
{
// Build a list of all inner-tags that must be removed
String[] innerTagsToRemove = tn
.allAN(true, true) // Builds attibute Stream<String>
.filter(innerTag -> filter.test(innerTag)) // Run the user provided filter
.toArray(String[]::new); // Stream<String> -> String[]
if (innerTagsToRemove.length > 0)
{
// Build a new TagNode, and then replace the old one with the newly built one
// on the page or sub-page, and at the same location.
tn = tn.removeAttributes(innerTagsToRemove);
html.setElementAt(tn, i);
// Java's IntStream-Builder is just a way to "build" a short list of integer's.
// The list shall contain all Vector indices where a "TagNode swap" occurred
b.accept(i);
}
}
// Build the IntStream, Convert the IntStream -> int[], Return it.
return b.build().toArray();
}
static int[] filter(
final Vector<? super TagNode> html,
final int[] posArr,
final StrFilter filter
)
{
// Use Java Stream to keep a list of Vector-Locations that were updated / modified.
IntStream.Builder b = IntStream.builder();
for (int i: posArr)
{
HTMLNode n = (HTMLNode) html.elementAt(i);
if (! n.isTagNode()) throw new TagNodeExpectedException(i);
TagNode tn = (TagNode) n;
if (tn.isClosing) throw new OpeningTagNodeExpectedException(i);
// Minimum TagNode.str Length (in order to have attributes): '<', TOKEN, SPACE '>'
if (tn.str.length() < (tn.tok.length() + 3)) continue;
// Build a list of all inner-tags that must be removed
String[] innerTagsToRemove = tn
.allAN(true, true) // Builds attibute Stream<String>
.filter(innerTag -> filter.test(innerTag)) // Run the user provided filter
.toArray(String[]::new); // Stream<String> -> String[]
if (innerTagsToRemove.length > 0)
{
// Build a new TagNode, and then replace the old one with the newly built one
// on the page or sub-page, and at the same location.
tn = tn.removeAttributes(innerTagsToRemove);
html.setElementAt(tn, i);
// Java's IntStream-Builder is just a way to "build" a short list of integer's.
// The list shall contain all Vector indices where a "TagNode swap" occurred
b.accept(i);
}
}
// Build the IntStream, Convert the IntStream -> int[], Return it.
return b.build().toArray();
}
}
|