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53 lines
1.0 KiB
53 lines
1.0 KiB
'use strict';
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var zero = function (n, max) {
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n = n.toString(16).toUpperCase();
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while (n.length < max) {
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n = '0' + n;
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}
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return n;
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};
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module.exports = function (buffer) {
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var rows = Math.ceil(buffer.length / 16);
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var last = buffer.length % 16 || 16;
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var offsetLength = buffer.length.toString(16).length;
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if (offsetLength < 6) offsetLength = 6;
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var i;
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var str = '';
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var b = 0;
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var lastBytes;
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var lastSpaces;
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var v;
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for (i = 0; i < rows; i++) {
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str += '\u001b[36m' + zero(b, offsetLength) + '\u001b[0m ';
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lastBytes = i === rows - 1 ? last : 16;
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lastSpaces = 16 - lastBytes;
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var j;
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for (j = 0; j < lastBytes; j++) {
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str += ' ' + zero(buffer[b], 2);
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b++;
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}
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for (j = 0; j < lastSpaces; j++) {
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str += ' ';
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}
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b -= lastBytes;
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str += ' ';
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for (j = 0; j < lastBytes; j++) {
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v = buffer[b];
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str += (v > 31 && v < 127) || v > 159 ? String.fromCharCode(v) : '.';
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b++;
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}
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str += '\n';
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}
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return str;
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};
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