← Back to branch summary

~ubuntu-branches/debian/squeeze/erlang/squeeze

« back to all changes in this revision

Viewing changes to erts/doc/src/match_spec.xml

  • Committer: Bazaar Package Importer
  • Author(s): Sergei Golovan
  • Date: 2010-03-09 17:34:57 UTC
  • mfrom: (10.1.2 sid)
  • Revision ID: james.westby@ubuntu.com-20100309173457-4yd6hlcb2osfhx31
Tags: 1:13.b.4-dfsg-3
Manpages in section 1 are needed even if only arch-dependent packages are
built. So, re-enabled them.

Show diffs side-by-side

added added

removed removed

Lines of Context:
erts/doc/src/match_spec.xml
4
4
<chapter>
5
5
  <header>
6
6
    <copyright>
7
 
      <year>1999</year><year>2009</year>
 
7
      <year>1999</year><year>2010</year>
8
8
      <holder>Ericsson AB. All Rights Reserved.</holder>
9
9
    </copyright>
10
10
    <legalnotice>
13
13
      compliance with the License. You should have received a copy of the
14
14
      Erlang Public License along with this software. If not, it can be
15
15
      retrieved online at http://www.erlang.org/.
16
 
    
 
16
 
17
17
      Software distributed under the License is distributed on an "AS IS"
18
18
      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
19
19
      the License for the specific language governing rights and limitations
20
20
      under the License.
21
 
    
 
21
 
22
22
    </legalnotice>
23
23
 
24
24
    <title>Match specifications in Erlang</title>
360
360
      </p>
361
361
    <table>
362
362
      <row>
363
 
        <cell align="left" valign="middle">Expression\011\011</cell>
364
 
        <cell align="left" valign="middle">Variable bindings\011\011</cell>
365
 
        <cell align="left" valign="middle">Result\011</cell>
 
363
        <cell align="left" valign="middle">Expression           </cell>
 
364
        <cell align="left" valign="middle">Variable bindings            </cell>
 
365
        <cell align="left" valign="middle">Result       </cell>
366
366
      </row>
367
367
      <row>
368
 
        <cell align="left" valign="middle">{{'$1','$2'}}\011\011</cell>
 
368
        <cell align="left" valign="middle">{{'$1','$2'}}                </cell>
369
369
        <cell align="left" valign="middle">'$1' = a, '$2' = b</cell>
370
370
        <cell align="left" valign="middle">{a,b}</cell>
371
371
      </row>
372
372
      <row>
373
 
        <cell align="left" valign="middle">{const, {'$1', '$2'}}\011</cell>
 
373
        <cell align="left" valign="middle">{const, {'$1', '$2'}}        </cell>
374
374
        <cell align="left" valign="middle">doesn't matter</cell>
375
375
        <cell align="left" valign="middle">{'$1', '$2'}</cell>
376
376
      </row>
377
377
      <row>
378
 
        <cell align="left" valign="middle">a\011\011\011</cell>
379
 
        <cell align="left" valign="middle">doesn't matter\011\011\011</cell>
 
378
        <cell align="left" valign="middle">a                    </cell>
 
379
        <cell align="left" valign="middle">doesn't matter                       </cell>
380
380
        <cell align="left" valign="middle">a</cell>
381
381
      </row>
382
382
      <row>
383
 
        <cell align="left" valign="middle">'$1'\011\011\011</cell>
384
 
        <cell align="left" valign="middle">'$1' = []\011\011\011</cell>
 
383
        <cell align="left" valign="middle">'$1'                 </cell>
 
384
        <cell align="left" valign="middle">'$1' = []                    </cell>
385
385
        <cell align="left" valign="middle">[]</cell>
386
386
      </row>
387
387
      <row>
388
 
        <cell align="left" valign="middle">['$1']\011\011\011</cell>
389
 
        <cell align="left" valign="middle">'$1' = []\011\011\011</cell>
 
388
        <cell align="left" valign="middle">['$1']                       </cell>
 
389
        <cell align="left" valign="middle">'$1' = []                    </cell>
390
390
        <cell align="left" valign="middle">[[]]</cell>
391
391
      </row>
392
392
      <row>
393
 
        <cell align="left" valign="middle">[{{a}}]\011\011\011</cell>
 
393
        <cell align="left" valign="middle">[{{a}}]                      </cell>
394
394
        <cell align="left" valign="middle">doesn't matter</cell>
395
395
        <cell align="left" valign="middle">[{a}]</cell>
396
396
      </row>
397
397
      <row>
398
 
        <cell align="left" valign="middle">42\011\011\011</cell>
 
398
        <cell align="left" valign="middle">42                   </cell>
399
399
        <cell align="left" valign="middle">doesn't matter</cell>
400
400
        <cell align="left" valign="middle">42</cell>
401
401
      </row>
402
402
      <row>
403
 
        <cell align="left" valign="middle">"hello"\011\011\011</cell>
 
403
        <cell align="left" valign="middle">"hello"                      </cell>
404
404
        <cell align="left" valign="middle">doesn't matter</cell>
405
405
        <cell align="left" valign="middle">"hello"</cell>
406
406
      </row>
407
407
      <row>
408
 
        <cell align="left" valign="middle">$1\011\011\011</cell>
 
408
        <cell align="left" valign="middle">$1                   </cell>
409
409
        <cell align="left" valign="middle">doesn't matter</cell>
410
410
        <cell align="left" valign="middle">49 (the ASCII value for the character '1')</cell>
411
411
      </row>
507
507
      a list which in turn begins with the second argument times
508
508
      two (i. e. [{[4,x],y},2] or [{[8], y, z},4])</p>
509
509
    <code type="none"><![CDATA[
510
 
[{['$1', '$2'],\011[{'=:=', {'*', 2, '$2'}, {hd, {element, 1, '$1'}}}],
511
 
  []}]\011
 
510
[{['$1', '$2'],[{'=:=', {'*', 2, '$2'}, {hd, {element, 1, '$1'}}}],
 
511
  []}]
512
512
    ]]></code>
513
513
    <p>Match three arguments. When all three are equal and are
514
514
      numbers, append the process dump to the trace message, else