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28
public stringGenerator(alphabet: string): IGenerator<string> {
30
>
next: () => {
31
>
const characterIndex = this.nextIntRange(0, alphabet.length);
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>
return alphabet.charAt(characterIndex);
33
>
}
34
>
};
35
>
}
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37
public abstract nextIntRange(start: number, endExclusive: number): number;
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39
public nextString(length: number, alphabet = this.stringGenerator(Random.basicAlphabet)): string {
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>
for (let i = 0; i < length; i++) {
42
>
randomText += alphabet.next();
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>
}
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>
return randomText;
45
>
}
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47
public nextMultiLineString(lineCount: number, lineLengthRange: OffsetRange, alphabet = this.stringGenerator(Random.basicAlphabet)): string {
49
>
for (let i = 0; i < lineCount; i++) {
50
>
const lineLength = this.nextIntRange(lineLengthRange.start, lineLengthRange.endExclusive);
51
>
lines.push(this.nextString(lineLength, alphabet));
52
>
}
53
>
return lines.join('\n');
54
>
}
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56
public nextConsecutiveOffsets(range: OffsetRange, count: number): number[] {
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>
const offsets = OffsetRange.ofLength(count).map(() => this.nextIntRange(range.start, range.endExclusive));
random.ts
58
>
offsets.sort(numberComparator);
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>
return offsets;
60
>
}
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62
public nextConsecutivePositions(source: AbstractText, count: number): Position[] {
64
>
const offsets = this.nextConsecutiveOffsets(new OffsetRange(0, t.text.length), count);
65
>
return offsets.map(offset => t.getPosition(offset));
66
>
}
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68
public nextRange(source: AbstractText): Range {