private bool EntryIsLikeVerse(string text, int indexOfDigit, bool useCommaDelimiter)
{
var prevChar = StringUtils.GetChar(text, indexOfDigit - 1);
var nextChar = StringUtils.GetCharAfterNumber(text, indexOfDigit, out int indexOfChar);
var result = (VerseUtils.IsStartVerseChar(prevChar, useCommaDelimiter) || char.IsLetter(prevChar)) &&
(nextChar == default(char) || !char.IsDigit(nextChar));
return(result);
}
private VerseNumberEntry TryGetTopVerseNumber(string text, int startIndex, VerseNumber verseNumber)
{
var cursorIndex = startIndex;
var dashWasFound = false;
var digitWasFound = false;
var indexOfDigit = 0;
var maxSpaceBetweenVerseNumbers = 3;
while (cursorIndex - startIndex <= maxSpaceBetweenVerseNumbers)
{
var c = StringUtils.GetChar(text, cursorIndex);
if (VerseUtils.IsDash(c) && !dashWasFound)
{
dashWasFound = true;
}
else if (char.IsDigit(c) && dashWasFound)
{
digitWasFound = true;
indexOfDigit = cursorIndex;
break;
}
else if (c != ' ')
{
break;
}
cursorIndex++;
}
if (!dashWasFound || !digitWasFound)
{
return(null);
}
var result = TryGetVerseNumber(text, indexOfDigit, false);
if (result.VerseNumber.IsChapter && !verseNumber.IsChapter)
{
result.VerseNumber = new VerseNumber(verseNumber.Chapter, result.VerseNumber.Chapter);
}
if (result.VerseNumber.Chapter < verseNumber.Chapter ||
(result.VerseNumber.IsChapter && result.VerseNumber.Chapter == verseNumber.Chapter) ||
(result.VerseNumber.Chapter == verseNumber.Chapter && result.VerseNumber.Verse <= verseNumber.Verse))
{
return(null);
}
return(result);
}
private int GetBookEndIndex(string text, int indexOfDigit)
{
var endIndex = indexOfDigit - 1;
var maxMidSymbols = 4;
while (endIndex > 0 && !char.IsLetter(text[endIndex]))
{
if (VerseUtils.IsMidVerseChar(text[endIndex]) && indexOfDigit - endIndex <= (maxMidSymbols + 1))
{
endIndex--;
}
else
{
break;
}
}
return(endIndex);
}
private VerseNumberEntry TryGetVerseNumber(string text, int indexOfDigit, bool useCommaDelimiter)
{
char[] chapterDigits = new char[3];
char[] verseDigits = new char[3];
var chapterIndex = 0;
var verseIndex = 0;
var chapterWasFound = false;
var spaceWasFound = false;
var cursorIndex = indexOfDigit;
var maxVerseNumberLength = 9;
var lastValuableCharIndex = 0;
while (cursorIndex - indexOfDigit + 1 <= maxVerseNumberLength)
{
var c = StringUtils.GetChar(text, cursorIndex);
if (char.IsDigit(c))
{
if (!chapterWasFound)
{
if (chapterIndex >= chapterDigits.Length)
{
break;
}
chapterDigits[chapterIndex++] = c;
}
else
{
if (verseIndex >= verseDigits.Length)
{
break;
}
verseDigits[verseIndex++] = c;
}
lastValuableCharIndex = cursorIndex;
spaceWasFound = false;
}
else if (c == ' ' && !spaceWasFound)
{
spaceWasFound = true;
}
else if (VerseUtils.IsChapterVerseDelimiter(c, useCommaDelimiter) && !chapterWasFound)
{
chapterWasFound = true;
spaceWasFound = false;
}
else
{
break;
}
cursorIndex++;
}
var chapter = VerseUtils.GetVerseNumber(chapterDigits, chapterIndex);
var verse = VerseUtils.GetVerseNumber(verseDigits, verseIndex);
return(new VerseNumberEntry()
{
StartIndex = indexOfDigit,
EndIndex = lastValuableCharIndex,
VerseNumber = new VerseNumber(chapter, verse)
});
}