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package processing.mode.java;

import java.util.List;

import java.util.OptionalInt;

import java.util.stream.IntStream;

import processing.app.Problem;

import processing.app.ui.Editor;

import processing.mode.java.preproc.PdePreprocessIssue;

/**

* Factory which helps create {Problem}s during preprocessing.

public class ProblemFactory {

/**

* Create a new {Problem}.

* @param pdePreprocessIssue The preprocess issue found.

* @param tabStarts The list of line numbers on which each tab starts.

* @return Newly created problem.

public static Problem build(PdePreprocessIssue pdePreprocessIssue, List<Integer> tabStarts) {

int line = pdePreprocessIssue.getLine();

TabLine tabLine = getTab(tabStarts, line);

int tab = tabLine.getTab();

int localLine = tabLine.getLineInTab();

int col = pdePreprocessIssue.getCharPositionInLine();

String message = pdePreprocessIssue.getMsg();

if (col == 0) {

col = 1;

}

return new SyntaxProblem(

tab,

localLine,

message,

col

);

}

/**

* Get the local tab and line number for a global line.

* @param tabStarts The lines on which each tab starts.

* @param line The global line to locate as a local line.

* @return The local tab number and local line number.

protected static TabLine getTab(List<Integer> tabStarts, int line) {

OptionalInt tabMaybe = IntStream.range(0, tabStarts.size())

.filter((index) -> line >= tabStarts.get(index))

.max();

int tab = tabMaybe.orElse(0);

int localLine = line - tabStarts.get(tab);

return new TabLine(tab, line, localLine);

}