Created
November 21, 2014 03:45
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getBoundsWithBreaks
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function getBoundsWithBreaks (text, subString) { | |
var breaks = []; | |
_.forEach(text, function (char, index) { | |
if (char === '\n') { | |
breaks.push(index); | |
} | |
}); | |
var startIndex = text.replace(/\n/g, '').indexOf(subString); | |
if (startIndex === -1) { | |
return; | |
} | |
var breaksBefore = _.filter(breaks, function (pos, index) { | |
return pos < startIndex + index; | |
}); | |
// начало - позиция плюс кол-во новых строк до этой позиции | |
var start = startIndex + breaksBefore.length; | |
// текущий фрагмент | |
var fragment = subString; | |
_.forEach(breaks, function (pos) { | |
if (pos > start && pos < fragment.length + start) { | |
fragment = fragment.slice(0, pos - start) + '\n' + fragment.slice(pos - start); | |
} | |
}); | |
var end = start + fragment.length; | |
return { | |
start: start, | |
end: end, | |
fragment: fragment | |
}; | |
} | |
it('getBounds', function () { | |
var result; | |
result = getBoundsWithBreaks('Приговор приведён в исполнение', 'говор прив'); | |
expect(result.start).toBe(3); | |
expect(result.end).toBe(13); | |
expect(result.fragment).toBe('говор прив'); | |
result = getBoundsWithBreaks('Приговор\n при\n\nведён в исполнение', 'говор прив'); | |
expect(result.start).toBe(3); | |
expect(result.end).toBe(16); | |
expect(result.fragment).toBe('говор\n при\n\nв'); | |
result = getBoundsWithBreaks('1 2 3 4 45', '3 4'); | |
expect(result.start).toBe(4); | |
expect(result.end).toBe(7); | |
expect(result.fragment).toBe('3 4'); | |
result = getBoundsWithBreaks('should return promise with response body', 'promise with'); | |
expect(result.start).toBe(14); | |
expect(result.end).toBe(26); | |
expect(result.fragment).toBe('promise with'); | |
result = getBoundsWithBreaks('should\n return promise\n with response body', 'promise with'); | |
expect(result.start).toBe(15); | |
expect(result.end).toBe(28); | |
expect(result.fragment).toBe('promise\n with'); | |
// TODO граничные условия | |
}); |
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