1 <reference id="ref.ctype"> 2 <title>Character type functions</title> 3 <titleabbrev>ctype</titleabbrev> 4 5 <partintro> 6 <para> 7 These functions check whether a character or string 8 falls into a certain character class according to the i 9 current locale. 10 </para> 11 <para> 12 When called with an integer argument these functions 13 behave exactly like their C counterparts. 14 </para> 15 <para> 16 When called with a string argument they will check 17 every character in the string and will only return 18 true if every character in the string matches the 19 requested criteria. 20 </para> 21 <para> 22 Passing anything else but a string or integer will 23 return false immediately. 24 </para> 25 </partintro> 26 27 28 <refentry id="function.isalnum"> 29 <refnamediv> 30 <refname>isalnum</refname> 31 <refpurpose>Check for alphanumeric character(s)</refpurpose> 32 </refnamediv> 33 <refsect1> 34 <title>Description</title> 35 <funcsynopsis> 36 <funcprototype> 37 <funcdef>bool <function>isalnum</function></funcdef> 38 <paramdef>string <parameter>c</parameter></paramdef> 39 </funcprototype> 40 </funcsynopsis> 41 <para> 42 See also <function>setlocale</function>. 43 </para> 44 </refsect1> 45 </refentry> 46 47 <refentry id="function.isalpha"> 48 <refnamediv> 49 <refname>isalpha</refname> 50 <refpurpose></refpurpose> 51 </refnamediv> 52 <refsect1> 53 <title>Description</title> 54 <funcsynopsis> 55 <funcprototype> 56 <funcdef>bool <function>isalpha</function></funcdef> 57 <paramdef>string <parameter>c</parameter></paramdef> 58 </funcprototype> 59 </funcsynopsis> 60 <para> 61 </para> 62 </refsect1> 63 </refentry> 64 65 <refentry id="function.iscntrl"> 66 <refnamediv> 67 <refname>iscntrl</refname> 68 <refpurpose></refpurpose> 69 </refnamediv> 70 <refsect1> 71 <title>Description</title> 72 <funcsynopsis> 73 <funcprototype> 74 <funcdef>bool <function>iscntrl</function></funcdef> 75 <paramdef>string <parameter>c</parameter></paramdef> 76 </funcprototype> 77 </funcsynopsis> 78 <para> 79 </para> 80 </refsect1> 81 </refentry> 82 83 <refentry id="function.isdigit"> 84 <refnamediv> 85 <refname>isdigit</refname> 86 <refpurpose></refpurpose> 87 </refnamediv> 88 <refsect1> 89 <title>Description</title> 90 <funcsynopsis> 91 <funcprototype> 92 <funcdef>bool <function>isdigit</function></funcdef> 93 <paramdef>string <parameter>c</parameter></paramdef> 94 </funcprototype> 95 </funcsynopsis> 96 <para> 97 </para> 98 </refsect1> 99 </refentry> 100 101 <refentry id="function.islower"> 102 <refnamediv> 103 <refname>islower</refname> 104 <refpurpose></refpurpose> 105 </refnamediv> 106 <refsect1> 107 <title>Description</title> 108 <funcsynopsis> 109 <funcprototype> 110 <funcdef>bool <function>islower</function></funcdef> 111 <paramdef>string <parameter>c</parameter></paramdef> 112 </funcprototype> 113 </funcsynopsis> 114 <para> 115 </para> 116 </refsect1> 117 </refentry> 118 119 <refentry id="function.isgraph"> 120 <refnamediv> 121 <refname>isgraph</refname> 122 <refpurpose></refpurpose> 123 </refnamediv> 124 <refsect1> 125 <title>Description</title> 126 <funcsynopsis> 127 <funcprototype> 128 <funcdef>bool <function>isgraph</function></funcdef> 129 <paramdef>string <parameter>c</parameter></paramdef> 130 </funcprototype> 131 </funcsynopsis> 132 <para> 133 </para> 134 </refsect1> 135 </refentry> 136 137 <refentry id="function.isprint"> 138 <refnamediv> 139 <refname>isprint</refname> 140 <refpurpose></refpurpose> 141 </refnamediv> 142 <refsect1> 143 <title>Description</title> 144 <funcsynopsis> 145 <funcprototype> 146 <funcdef>bool <function>isprint</function></funcdef> 147 <paramdef>string <parameter>c</parameter></paramdef> 148 </funcprototype> 149 </funcsynopsis> 150 <para> 151 </para> 152 </refsect1> 153 </refentry> 154 155 <refentry id="function.ispunct"> 156 <refnamediv> 157 <refname>ispunct</refname> 158 <refpurpose></refpurpose> 159 </refnamediv> 160 <refsect1> 161 <title>Description</title> 162 <funcsynopsis> 163 <funcprototype> 164 <funcdef>bool <function>ispunct</function></funcdef> 165 <paramdef>string <parameter>c</parameter></paramdef> 166 </funcprototype> 167 </funcsynopsis> 168 <para> 169 </para> 170 </refsect1> 171 </refentry> 172 173 <refentry id="function.isspace"> 174 <refnamediv> 175 <refname>isspace</refname> 176 <refpurpose></refpurpose> 177 </refnamediv> 178 <refsect1> 179 <title>Description</title> 180 <funcsynopsis> 181 <funcprototype> 182 <funcdef>bool <function>isspace</function></funcdef> 183 <paramdef>string <parameter>c</parameter></paramdef> 184 </funcprototype> 185 </funcsynopsis> 186 <para> 187 </para> 188 </refsect1> 189 </refentry> 190 191 <refentry id="function.isupper"> 192 <refnamediv> 193 <refname>isupper</refname> 194 <refpurpose></refpurpose> 195 </refnamediv> 196 <refsect1> 197 <title>Description</title> 198 <funcsynopsis> 199 <funcprototype> 200 <funcdef>bool <function>isupper</function></funcdef> 201 <paramdef>string <parameter>c</parameter></paramdef> 202 </funcprototype> 203 </funcsynopsis> 204 <para> 205 </para> 206 </refsect1> 207 </refentry> 208 209 <refentry id="function.isxdigit"> 210 <refnamediv> 211 <refname>isxdigit</refname> 212 <refpurpose></refpurpose> 213 </refnamediv> 214 <refsect1> 215 <title>Description</title> 216 <funcsynopsis> 217 <funcprototype> 218 <funcdef>bool <function>isxdigit</function></funcdef> 219 <paramdef>string <parameter>c</parameter></paramdef> 220 </funcprototype> 221 </funcsynopsis> 222 <para> 223 </para> 224 </refsect1> 225 </refentry> 226 227 </reference> 228 229<!-- Keep this comment at the end of the file 230Local variables: 231mode: sgml 232sgml-omittag:t 233sgml-shorttag:t 234sgml-minimize-attributes:nil 235sgml-always-quote-attributes:t 236sgml-indent-step:1 237sgml-indent-data:t 238sgml-parent-document:nil 239sgml-default-dtd-file:"../../manual.ced" 240sgml-exposed-tags:nil 241sgml-local-catalogs:nil 242sgml-local-ecat-files:nil 243End: 244--> 245
