1 | function array_delete(arr, item) { |
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2 | var i = arr.indexOf(item); |
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3 | if (i != -1) arr.splice(i, 1); |
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4 | } |
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5 | |
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6 | function sprintf() { |
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7 | var i = 0, a, f = arguments[i++], o = [], m, p, c, x, s = ''; |
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8 | while (f) { |
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9 | if (m = /^[^\x25]+/.exec(f)) { |
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10 | o.push(m[0]); |
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11 | } |
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12 | else if (m = /^\x25{2}/.exec(f)) { |
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13 | o.push('%'); |
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14 | } |
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15 | else if (m = /^\x25(?:(\d+)\$)?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(f)) { |
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16 | if (((a = arguments[m[1] || i++]) == null) || (a == undefined)) { |
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17 | throw('Too few arguments.'); |
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18 | } |
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19 | if (/[^s]/.test(m[7]) && (typeof(a) != 'number')) { |
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20 | throw('Expecting number but found ' + typeof(a)); |
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21 | } |
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22 | |
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23 | switch (m[7]) { |
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24 | case 'b': a = a.toString(2); break; |
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25 | case 'c': a = String.fromCharCode(a); break; |
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26 | case 'd': a = parseInt(a); break; |
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27 | case 'e': a = m[6] ? a.toExponential(m[6]) : a.toExponential(); break; |
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28 | case 'f': a = m[6] ? parseFloat(a).toFixed(m[6]) : parseFloat(a); break; |
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29 | case 'o': a = a.toString(8); break; |
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30 | case 's': a = ((a = String(a)) && m[6] ? a.substring(0, m[6]) : a); break; |
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31 | case 'u': a = Math.abs(a); break; |
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32 | case 'x': a = a.toString(16); break; |
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33 | case 'X': a = a.toString(16).toUpperCase(); break; |
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34 | } |
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35 | |
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36 | a = (/[def]/.test(m[7]) && m[2] && a >= 0 ? '+'+ a : a); |
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37 | c = m[3] ? m[3] == '0' ? '0' : m[3].charAt(1) : ' '; |
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38 | x = m[5] - String(a).length - s.length; |
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39 | p = m[5] ? str_repeat(c, x) : ''; |
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40 | o.push(s + (m[4] ? a + p : p + a)); |
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41 | } |
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42 | else { |
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43 | throw('Huh ?!'); |
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44 | } |
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45 | |
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46 | f = f.substring(m[0].length); |
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47 | } |
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48 | |
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49 | return o.join(''); |
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50 | } |
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