48 lines
4.1 KiB
JavaScript
48 lines
4.1 KiB
JavaScript
/*istanbul ignore start*/"use strict";
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exports.__esModule = true;
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exports["default"] = /*istanbul ignore end*/function (start, minLine, maxLine) {
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var wantForward = true,
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backwardExhausted = false,
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forwardExhausted = false,
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localOffset = 1;
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return function iterator() {
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if (wantForward && !forwardExhausted) {
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if (backwardExhausted) {
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localOffset++;
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} else {
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wantForward = false;
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}
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// Check if trying to fit beyond text length, and if not, check it fits
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// after offset location (or desired location on first iteration)
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if (start + localOffset <= maxLine) {
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return localOffset;
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}
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forwardExhausted = true;
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}
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if (!backwardExhausted) {
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if (!forwardExhausted) {
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wantForward = true;
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}
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// Check if trying to fit before text beginning, and if not, check it fits
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// before offset location
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if (minLine <= start - localOffset) {
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return -localOffset++;
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}
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backwardExhausted = true;
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return iterator();
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}
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// We tried to fit hunk before text beginning and beyond text length, then
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// hunk can't fit on the text. Return undefined
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};
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};
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