annotate static/sprintf.js @ 13:a0213f0e707b

- Update for v12.10 - Plot raw data to show more up to date data - Average/peak winds so they don't spam the display. - Display the time of the most recent data.
author Daniel O'Connor <darius@dons.net.au>
date Thu, 10 Jan 2013 16:38:36 +1030
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13
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1 /**
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2 *
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3 * Javascript sprintf
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4 * http://www.webtoolkit.info/
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5 *
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6 *
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7 **/
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8
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9 sprintfWrapper = {
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10 init : function () {
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11 if (typeof arguments == "undefined") { return null; }
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12 if (arguments.length < 1) { return null; }
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13 if (typeof arguments[0] != "string") { return null; }
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14 if (typeof RegExp == "undefined") { return null; }
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15
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16 var string = arguments[0];
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17 var exp = new RegExp(/(%([%]|(\-)?(\+|\x20)?(0)?(\d+)?(\.(\d)?)?([bcdfosxX])))/g);
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18 var matches = new Array();
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19 var strings = new Array();
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20 var convCount = 0;
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21 var stringPosStart = 0;
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22 var stringPosEnd = 0;
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23 var matchPosEnd = 0;
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24 var newString = '';
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25 var match = null;
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26
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27 while (match = exp.exec(string)) {
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28 if (match[9]) { convCount += 1; }
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29
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30 stringPosStart = matchPosEnd;
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31 stringPosEnd = exp.lastIndex - match[0].length;
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32 strings[strings.length] = string.substring(stringPosStart, stringPosEnd);
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33
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34 matchPosEnd = exp.lastIndex;
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35 matches[matches.length] = {
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36 match: match[0],
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37 left: match[3] ? true : false,
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38 sign: match[4] || '',
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39 pad: match[5] || ' ',
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40 min: match[6] || 0,
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41 precision: match[8],
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42 code: match[9] || '%',
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43 negative: parseInt(arguments[convCount]) < 0 ? true : false,
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44 argument: String(arguments[convCount])
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45 };
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46 }
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47 strings[strings.length] = string.substring(matchPosEnd);
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48
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49 if (matches.length == 0) { return string; }
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50 if ((arguments.length - 1) < convCount) { return null; }
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51
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52 var code = null;
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53 var match = null;
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54 var i = null;
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55
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56 for (i=0; i<matches.length; i++) {
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57
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58 if (matches[i].code == '%') { substitution = '%' }
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59 else if (matches[i].code == 'b') {
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60 matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(2));
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61 substitution = sprintfWrapper.convert(matches[i], true);
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62 }
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63 else if (matches[i].code == 'c') {
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64 matches[i].argument = String(String.fromCharCode(parseInt(Math.abs(parseInt(matches[i].argument)))));
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65 substitution = sprintfWrapper.convert(matches[i], true);
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66 }
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67 else if (matches[i].code == 'd') {
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68 matches[i].argument = String(Math.abs(parseInt(matches[i].argument)));
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69 substitution = sprintfWrapper.convert(matches[i]);
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70 }
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71 else if (matches[i].code == 'f') {
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72 matches[i].argument = String(Math.abs(parseFloat(matches[i].argument)).toFixed(matches[i].precision ? matches[i].precision : 6));
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73 substitution = sprintfWrapper.convert(matches[i]);
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74 }
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75 else if (matches[i].code == 'o') {
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76 matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(8));
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77 substitution = sprintfWrapper.convert(matches[i]);
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78 }
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79 else if (matches[i].code == 's') {
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80 matches[i].argument = matches[i].argument.substring(0, matches[i].precision ? matches[i].precision : matches[i].argument.length)
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81 substitution = sprintfWrapper.convert(matches[i], true);
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82 }
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83 else if (matches[i].code == 'x') {
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84 matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(16));
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85 substitution = sprintfWrapper.convert(matches[i]);
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86 }
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87 else if (matches[i].code == 'X') {
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88 matches[i].argument = String(Math.abs(parseInt(matches[i].argument)).toString(16));
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89 substitution = sprintfWrapper.convert(matches[i]).toUpperCase();
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90 }
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91 else {
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92 substitution = matches[i].match;
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93 }
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94
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95 newString += strings[i];
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96 newString += substitution;
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97
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98 }
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99 newString += strings[i];
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100
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101 return newString;
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102
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103 },
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104
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105 convert : function(match, nosign){
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106 if (nosign) {
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107 match.sign = '';
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108 } else {
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109 match.sign = match.negative ? '-' : match.sign;
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110 }
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111 var l = match.min - match.argument.length + 1 - match.sign.length;
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112 var pad = new Array(l < 0 ? 0 : l).join(match.pad);
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113 if (!match.left) {
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114 if (match.pad == "0" || nosign) {
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115 return match.sign + pad + match.argument;
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116 } else {
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117 return pad + match.sign + match.argument;
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118 }
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119 } else {
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120 if (match.pad == "0" || nosign) {
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121 return match.sign + match.argument + pad.replace(/0/g, ' ');
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122 } else {
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123 return match.sign + match.argument + pad;
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124 }
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125 }
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126 }
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127 }
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128
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129 sprintf = sprintfWrapper.init;
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130