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129 | .\" ======================================================================== |
130 | .\" |
131 | .IX Title "Template::Plugin::URL 3" |
132 | .TH Template::Plugin::URL 3 "2008-11-13" "perl v5.8.7" "User Contributed Perl Documentation" |
133 | .SH "NAME" |
134 | Template::Plugin::URL \- Plugin to construct complex URLs |
135 | .SH "SYNOPSIS" |
136 | .IX Header "SYNOPSIS" |
137 | .Vb 1 |
138 | \& [% USE url('/cgi\-bin/foo.pl') %] |
139 | .Ve |
140 | .PP |
141 | .Vb 2 |
142 | \& [% url(debug = 1, id = 123) %] |
143 | \& # ==> /cgi/bin/foo.pl?debug=1&id=123 |
144 | .Ve |
145 | .PP |
146 | .Vb 1 |
147 | \& [% USE mycgi = url('/cgi\-bin/bar.pl', mode='browse', debug=1) %] |
148 | .Ve |
149 | .PP |
150 | .Vb 2 |
151 | \& [% mycgi %] |
152 | \& # ==> /cgi/bin/bar.pl?mode=browse&debug=1 |
153 | .Ve |
154 | .PP |
155 | .Vb 2 |
156 | \& [% mycgi(mode='submit') %] |
157 | \& # ==> /cgi/bin/bar.pl?mode=submit&debug=1 |
158 | .Ve |
159 | .PP |
160 | .Vb 2 |
161 | \& [% mycgi(debug='d2 p0', id='D4\-2k[4]') %] |
162 | \& # ==> /cgi\-bin/bar.pl?mode=browse&debug=d2%20p0&id=D4\-2k%5B4%5D |
163 | .Ve |
164 | .SH "DESCRIPTION" |
165 | .IX Header "DESCRIPTION" |
166 | The \f(CW\*(C`URL\*(C'\fR plugin can be used to construct complex URLs from a base stem |
167 | and a hash array of additional query parameters. |
168 | .PP |
169 | The constructor should be passed a base \s-1URL\s0 and optionally, a hash array |
170 | reference of default parameters and values. Used from with a template, |
171 | it would look something like the following: |
172 | .PP |
173 | .Vb 3 |
174 | \& [% USE url('http://www.somewhere.com/cgi\-bin/foo.pl') %] |
175 | \& [% USE url('/cgi\-bin/bar.pl', mode='browse') %] |
176 | \& [% USE url('/cgi\-bin/baz.pl', mode='browse', debug=1) %] |
177 | .Ve |
178 | .PP |
179 | When the plugin is then called without any arguments, the default base |
180 | and parameters are returned as a formatted query string. |
181 | .PP |
182 | .Vb 1 |
183 | \& [% url %] |
184 | .Ve |
185 | .PP |
186 | For the above three examples, these will produce the following outputs: |
187 | .PP |
188 | .Vb 3 |
189 | \& http://www.somewhere.com/cgi\-bin/foo.pl |
190 | \& /cgi\-bin/bar.pl?mode=browse |
191 | \& /cgi\-bin/baz.pl?mode=browse&debug=1 |
192 | .Ve |
193 | .PP |
194 | Note that additional parameters are separated by '\f(CW\*(C`&\*(C'\fR' rather than |
195 | simply '\f(CW\*(C`&\*(C'\fR'. This is the correct behaviour for \s-1HTML\s0 pages but is, |
196 | unfortunately, incorrect when creating URLs that do not need to be |
197 | encoded safely for \s-1HTML\s0. This is likely to be corrected in a future |
198 | version of the plugin (most probably with \s-1TT3\s0). In the mean time, you |
199 | can set \f(CW$Template::Plugin::URL::JOINT\fR to \f(CW\*(C`&\*(C'\fR to get the correct |
200 | behaviour. |
201 | .PP |
202 | Additional parameters may be also be specified to the \s-1URL:\s0 |
203 | .PP |
204 | .Vb 1 |
205 | \& [% url(mode='submit', id='wiz') %] |
206 | .Ve |
207 | .PP |
208 | Which, for the same three examples, produces: |
209 | .PP |
210 | .Vb 3 |
211 | \& http://www.somewhere.com/cgi\-bin/foo.pl?mode=submit&id=wiz |
212 | \& /cgi\-bin/bar.pl?mode=browse&id=wiz |
213 | \& /cgi\-bin/baz.pl?mode=browse&debug=1&id=wiz |
214 | .Ve |
215 | .PP |
216 | A new base \s-1URL\s0 may also be specified as the first option: |
217 | .PP |
218 | .Vb 1 |
219 | \& [% url('/cgi\-bin/waz.pl', test=1) %] |
220 | .Ve |
221 | .PP |
222 | producing |
223 | .PP |
224 | .Vb 3 |
225 | \& /cgi\-bin/waz.pl?test=1 |
226 | \& /cgi\-bin/waz.pl?mode=browse&test=1 |
227 | \& /cgi\-bin/waz.pl?mode=browse&debug=1&test=1 |
228 | .Ve |
229 | .PP |
230 | The ordering of the parameters is non-deterministic due to fact that |
231 | Perl's hashes themselves are unordered. This isn't a problem as the |
232 | ordering of \s-1CGI\s0 parameters is insignificant (to the best of my knowledge). |
233 | All values will be properly escaped thanks to some code borrowed from |
234 | Lincoln Stein's \f(CW\*(C`CGI\*(C'\fR module. e.g. |
235 | .PP |
236 | .Vb 2 |
237 | \& [% USE url('/cgi\-bin/woz.pl') %] |
238 | \& [% url(name="Elrich von Benjy d'Weiro") %] |
239 | .Ve |
240 | .PP |
241 | Here the spaces and "\f(CW\*(C`'\*(C'\fR" character are escaped in the output: |
242 | .PP |
243 | .Vb 1 |
244 | \& /cgi\-bin/woz.pl?name=Elrich%20von%20Benjy%20d%27Weiro |
245 | .Ve |
246 | .PP |
247 | An alternate name may be provided for the plugin at construction time |
248 | as per regular Template Toolkit syntax. |
249 | .PP |
250 | .Vb 2 |
251 | \& [% USE mycgi = url('cgi\-bin/min.pl') %] |
252 | \& [% mycgi(debug=1) %] |
253 | .Ve |
254 | .SH "AUTHOR" |
255 | .IX Header "AUTHOR" |
256 | Andy Wardley <abw@wardley.org> <http://wardley.org/> |
257 | .SH "COPYRIGHT" |
258 | .IX Header "COPYRIGHT" |
259 | Copyright (C) 1996\-2007 Andy Wardley. All Rights Reserved. |
260 | .PP |
261 | This module is free software; you can redistribute it and/or |
262 | modify it under the same terms as Perl itself. |
263 | .SH "SEE ALSO" |
264 | .IX Header "SEE ALSO" |
265 | Template::Plugin |