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3 <title>MayaChemTools:Documentation:TextUtil.pm</title>
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11 </center>
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13 <div class="DocNav">
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14 <table width="100%" border=0 cellpadding=0 cellspacing=2>
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15 <tr align="left" valign="top"><td width="33%" align="left"><a href="./StatisticsUtil.html" title="StatisticsUtil.html">Previous</a> <a href="./index.html" title="Table of Contents">TOC</a> <a href="./TimeUtil.html" title="TimeUtil.html">Next</a></td><td width="34%" align="middle"><strong>TextUtil.pm</strong></td><td width="33%" align="right"><a href="././code/TextUtil.html" title="View source code">Code</a> | <a href="./../pdf/TextUtil.pdf" title="PDF US Letter Size">PDF</a> | <a href="./../pdfgreen/TextUtil.pdf" title="PDF US Letter Size with narrow margins: www.changethemargins.com">PDFGreen</a> | <a href="./../pdfa4/TextUtil.pdf" title="PDF A4 Size">PDFA4</a> | <a href="./../pdfa4green/TextUtil.pdf" title="PDF A4 Size with narrow margins: www.changethemargins.com">PDFA4Green</a></td></tr>
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16 </table>
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17 </div>
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18 <p>
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19 </p>
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20 <h2>NAME</h2>
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21 <p>TextUtil</p>
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22 <p>
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23 </p>
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24 <h2>SYNOPSIS</h2>
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25 <p>use TextUtil;</p>
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26 <p>use TextUtil qw(:all);</p>
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27 <p>
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28 </p>
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29 <h2>DESCRIPTION</h2>
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30 <p><strong>TextUtil</strong> module provides the following functions:</p>
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31 <p> <a href="#addnumbersuffix">AddNumberSuffix</a>, <a href="#containswhitespaces">ContainsWhiteSpaces</a>, <a href="#gettextfiledatabynonuniquekey">GetTextFileDataByNonUniqueKey</a>
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32 , <a href="#gettextfiledatabyuniquekey">GetTextFileDataByUniqueKey</a>, <a href="#gettextline">GetTextLine</a>, <a href="#hashcode">HashCode</a>, <a href="#isempty">IsEmpty</a>, <a href="#isfloat">IsFloat</a>, <a href="#isinteger">IsInteger</a>
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33 , <a href="#isnotempty">IsNotEmpty</a>, <a href="#isnumberpowerofnumber">IsNumberPowerOfNumber</a>, <a href="#isnumerical">IsNumerical</a>, <a href="#ispositiveinteger">IsPositiveInteger</a>, <a href="#joinwords">JoinWords</a>
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34 , <a href="#quoteaword">QuoteAWord</a>, <a href="#removeleadingandtrailingwhitespaces">RemoveLeadingAndTrailingWhiteSpaces</a>, <a href="#removeleadingwhitespaces">RemoveLeadingWhiteSpaces</a>
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35 , <a href="#removetrailingwhitespaces">RemoveTrailingWhiteSpaces</a>, <a href="#splitwords">SplitWords</a>, <a href="#wraptext">WrapText</a>
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36 </p><p>
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37 </p>
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38 <h2>FUNCTIONS</h2>
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39 <dl>
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40 <dt><strong><a name="addnumbersuffix" class="item"><strong>AddNumberSuffix</strong></a></strong></dt>
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41 <dd>
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42 <div class="OptionsBox">
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43 $NumberWithSuffix = AddNumberSuffix($IntegerValue);</div>
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44 <p>Returns number with appropriate suffix: 0, 1st, 2nd, 3rd, 4th, and so on.</p>
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45 </dd>
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46 <dt><strong><a name="containswhitespaces" class="item"><strong>ContainsWhiteSpaces</strong></a></strong></dt>
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47 <dd>
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48 <div class="OptionsBox">
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49 $Status = ContainsWhiteSpaces($TheString);</div>
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50 <p>Returns 1 or 0 based on whether the string contains any white spaces.</p>
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51 </dd>
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52 <dt><strong><a name="gettextline" class="item"><strong>GetTextLine</strong></a></strong></dt>
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53 <dd>
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54 <div class="OptionsBox">
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55 $Line = GetTextLine(\*TEXTFILE);</div>
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56 <p>Reads next line from an already opened text file, takes out any carriage return,
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57 and returns it as a string. NULL is returned for EOF.</p>
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58 </dd>
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59 <dt><strong><a name="gettextfiledatabynonuniquekey" class="item"><strong>GetTextFileDataByNonUniqueKey</strong></a></strong></dt>
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60 <dd>
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61 <div class="OptionsBox">
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62 GetTextFileDataByNonUniqueKey($TextDataFile, $TextDataMapRef,
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63 $DataKeyColNum, $InDelim);</div>
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64 <p>Load data from a text file into the specified hash reference using a specific
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65 column for non-unique data key values.</p>
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66 <p>The lines starting with # are treated as comments and ignored. First line
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67 not starting with # must contain column labels and the number of columns in
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68 all other data rows must match the number of column labels.</p>
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69 <p>The first column is assumed to contain data key value by default; all other columns
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70 contain data as indicated in their column labels.</p>
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71 <p>In order to avoid dependence of data access on the specified column labels, the
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72 column data is loaded into hash with Column<Num> hash keys, where column number
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73 start from 1. The data key column is not available as Colnum<Num> hash key;</p>
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74 <p>The format of the data structure loaded into a specified hash reference is:</p>
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75 <div class="OptionsBox">
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76 @{$TextDataMapRef->{DataKeys}} - Array of unique data keys
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77 <br/> @{$TextDataMapRef->{ColLabels}} - Array of column labels
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78 <br/> @{$TextDataMapRef->{DataColIDs}} - Array of data column IDs
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79 <br/> $TextDataMapRef->{NumOfCols} - Number of columns
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80 <br/> %{$TextDataMapRef->{DataKey}} - Hash keys pair: <DataKey, DataKey>
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81 <br/> @{$TextDataMapRef->{DataCol<Num>}} - Hash keys pair with data as an array:
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82 <DataCol<Num>, DataKey></div>
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83 </dd>
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84 <dt><strong><a name="gettextfiledatabyuniquekey" class="item"><strong>GetTextFileDataByUniqueKey</strong></a></strong></dt>
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85 <dd>
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86 <div class="OptionsBox">
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87 GetTextFileDataByUniqueKey($TextDataFile, $TextDataMapRef, $DataKeyColNum,
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88 $InDelim);</div>
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89 <p>Load data from a text file into the specified hash reference using a a specific
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90 column for unique data key values.</p>
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91 <p>The lines starting with # are treated as comments and ignored. First line
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92 not starting with # must contain column labels and the number of columns in
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93 all other data rows must match the number of column labels.</p>
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94 <p>The first column is assumed to contain data key value by default; all other columns
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95 contain data as indicated in their column labels.</p>
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96 <p>In order to avoid dependence of data access on the specified column labels, the
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97 column data is loaded into hash with Column<Num> hash keys, where column number
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98 start from 1. The data key column is not available as Colnum<Num> hash key;</p>
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99 <p>The format of the data structure loaded into a specified hash reference is:</p>
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100 <div class="OptionsBox">
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101 @{$TextDataMapRef->{DataKeys}} - Array of unique data keys
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102 <br/> @{$TextDataMapRef->{ColLabels}} - Array of column labels
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103 <br/> @{$TextDataMapRef->{DataColIDs}} - Array of data column IDs
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104 <br/> $TextDataMapRef->{NumOfCols} - Number of columns
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105 <br/> %{$TextDataMapRef->{DataKey}} - Hash keys pair: <DataKey, DataKey>
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106 <br/> %{$TextDataMapRef->{DataCol<Num>}} - Hash keys pair: <DataCol<Num>, DataKey></div>
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107 </dd>
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108 <dt><strong><a name="hashcode" class="item"><strong>HashCode</strong></a></strong></dt>
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109 <dd>
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110 <div class="OptionsBox">
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111 $HashCode = HashCode($TheString);</div>
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112 <p>Returns a 32 bit integer hash code using One-at-a-time algorithm By Bob Jenkins [Ref 38].
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113 It's also implemented in Perl for internal hash keys in hv.h include file.</p>
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114 </dd>
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115 <dt><strong><a name="isempty" class="item"><strong>IsEmpty</strong></a></strong></dt>
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116 <dd>
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117 <div class="OptionsBox">
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118 $Status = IsEmpty($TheString);</div>
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119 <p>Returns 1 or 0 based on whether the string is empty.</p>
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120 </dd>
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121 <dt><strong><a name="isinteger" class="item"><strong>IsInteger</strong></a></strong></dt>
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122 <dd>
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123 <div class="OptionsBox">
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124 $Status = IsInteger($TheString);</div>
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125 <p>Returns 1 or 0 based on whether the string is a positive integer.</p>
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126 </dd>
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127 <dt><strong><a name="ispositiveinteger" class="item"><strong>IsPositiveInteger</strong></a></strong></dt>
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128 <dd>
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129 <div class="OptionsBox">
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130 $Status = IsPositiveInteger($TheString);</div>
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131 <p>Returns 1 or 0 based on whether the string is an integer.</p>
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132 </dd>
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133 <dt><strong><a name="isfloat" class="item"><strong>IsFloat</strong></a></strong></dt>
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134 <dd>
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135 <div class="OptionsBox">
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136 $Status = IsFloat($TheString);</div>
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137 <p>Returns 1 or 0 based on whether the string is a float.</p>
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138 </dd>
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139 <dt><strong><a name="isnotempty" class="item"><strong>IsNotEmpty</strong></a></strong></dt>
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140 <dd>
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141 <div class="OptionsBox">
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142 $Status = IsNotEmpty($TheString);</div>
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143 <p>Returns 0 or 1 based on whether the string is empty.</p>
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144 </dd>
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145 <dt><strong><a name="isnumerical" class="item"><strong>IsNumerical</strong></a></strong></dt>
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146 <dd>
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147 <div class="OptionsBox">
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148 $Status = IsNumerical($TheString);</div>
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149 <p>Returns 1 or 0 based on whether the string is a number.</p>
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150 </dd>
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151 <dt><strong><a name="isnumberpowerofnumber" class="item"><strong>IsNumberPowerOfNumber</strong></a></strong></dt>
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152 <dd>
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153 <div class="OptionsBox">
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154 $Status = IsNumberPowerOfNumber($FirstNum, $SecondNum);</div>
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155 <p>Returns 1 or 0 based on whether the first number is a power of second number.</p>
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156 </dd>
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157 <dt><strong><a name="joinwords" class="item"><strong>JoinWords</strong></a></strong></dt>
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158 <dd>
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159 <div class="OptionsBox">
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160 $JoinedWords = JoinWords($Words, $Delim, $Quote);</div>
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161 <p>Joins different words using delimiter and quote parameters, and returns it
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162 as a string.</p>
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163 </dd>
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164 <dt><strong><a name="quoteaword" class="item"><strong>QuoteAWord</strong></a></strong></dt>
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165 <dd>
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166 <div class="OptionsBox">
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167 $QuotedWord = QuoteAWord($Word, $Quote);</div>
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168 <p>Returns a quoted string based on <em>Quote</em> value.</p>
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169 </dd>
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170 <dt><strong><a name="removeleadingwhitespaces" class="item"><strong>RemoveLeadingWhiteSpaces</strong></a></strong></dt>
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171 <dd>
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172 <div class="OptionsBox">
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173 $OutString = RemoveLeadingWhiteSpaces($InString);</div>
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174 <p>Returns a string without any leading and traling white spaces.</p>
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175 </dd>
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176 <dt><strong><a name="removetrailingwhitespaces" class="item"><strong>RemoveTrailingWhiteSpaces</strong></a></strong></dt>
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177 <dd>
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178 <div class="OptionsBox">
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179 $OutString = RemoveTrailingWhiteSpaces($InString);</div>
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180 <p>Returns a string without any trailing white spaces.</p>
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181 </dd>
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182 <dt><strong><a name="removeleadingandtrailingwhitespaces" class="item"><strong>RemoveLeadingAndTrailingWhiteSpaces</strong></a></strong></dt>
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183 <dd>
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184 <div class="OptionsBox">
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185 $OutString = RemoveLeadingAndTrailingWhiteSpaces($InString);</div>
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186 <p>Returns a string without any leading and traling white spaces.</p>
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187 </dd>
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188 <dt><strong><a name="splitwords" class="item"><strong>SplitWords</strong></a></strong></dt>
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189 <dd>
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190 <div class="OptionsBox">
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191 @Words = SplitWords($Line, $Delimiter);</div>
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192 <p>Returns an array <em>Words</em> ontaining unquoted words generated after spliting
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193 string value <em>Line</em> containing quoted or unquoted words.</p>
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194 <p>This function is used to split strings generated by JoinWords as replacement
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195 for Perl's core module funtion Text::ParseWords::quotewords() which dumps core
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196 on very long strings.</p>
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197 </dd>
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198 <dt><strong><a name="wraptext" class="item"><strong>WrapText</strong></a></strong></dt>
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199 <dd>
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200 <div class="OptionsBox">
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201 $OutString = WrapText($InString, [$WrapLength, $WrapDelimiter]);</div>
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202 <p>Returns a wrapped string. By default, <em>WrapLenght</em> is <em>40</em> and <em>WrapDelimiter</em>
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203 is Unix new line character.</p>
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204 </dd>
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205 </dl>
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206 <p>
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207 </p>
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208 <h2>AUTHOR</h2>
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209 <p><a href="mailto:msud@san.rr.com">Manish Sud</a></p>
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210 <p>
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211 </p>
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212 <h2>SEE ALSO</h2>
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213 <p><a href="./FileUtil.html">FileUtil.pm</a>
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214 </p>
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215 <p>
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216 </p>
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217 <h2>COPYRIGHT</h2>
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218 <p>Copyright (C) 2015 Manish Sud. All rights reserved.</p>
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219 <p>This file is part of MayaChemTools.</p>
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220 <p>MayaChemTools is free software; you can redistribute it and/or modify it under
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221 the terms of the GNU Lesser General Public License as published by the Free
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222 Software Foundation; either version 3 of the License, or (at your option)
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223 any later version.</p>
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224 <p> </p><p> </p><div class="DocNav">
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225 <table width="100%" border=0 cellpadding=0 cellspacing=2>
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226 <tr align="left" valign="top"><td width="33%" align="left"><a href="./StatisticsUtil.html" title="StatisticsUtil.html">Previous</a> <a href="./index.html" title="Table of Contents">TOC</a> <a href="./TimeUtil.html" title="TimeUtil.html">Next</a></td><td width="34%" align="middle"><strong>March 29, 2015</strong></td><td width="33%" align="right"><strong>TextUtil.pm</strong></td></tr>
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227 </table>
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228 </div>
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229 <br />
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