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970ed795 | 1 | <!-- |
d44e3c4f | 2 | Copyright (c) 2000-2016 Ericsson Telecom AB |
970ed795 EL |
3 | All rights reserved. This program and the accompanying materials |
4 | are made available under the terms of the Eclipse Public License v1.0 | |
5 | which accompanies this distribution, and is available at | |
6 | http://www.eclipse.org/legal/epl-v10.html | |
d44e3c4f | 7 | |
8 | Contributors: | |
9 | Baji, Laszlo | |
10 | Balasko, Jeno | |
11 | Farkas, Laszlo | |
12 | Forstner, Matyas | |
13 | Szabados, Kristof | |
14 | --> | |
970ed795 EL |
15 | <html> |
16 | <head> | |
17 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
18 | <meta http-equiv="Content-Language" content="en-us"> | |
19 | <title>log</title> | |
20 | </head> | |
21 | <body bgcolor="#DAD3C5" vlink="#0094D2" link="#003258"> | |
22 | <table align="left" border="0" cellspacing="0" cellpadding="0" valign=top> | |
23 | <tr> | |
24 | <td width=105 height=40><a href="https://projects.eclipse.org/projects/tools.titan"><img src="../images/titan_transparent.gif" border=0 width=105 height=40 align="left" alt="Titan"></a></td> | |
25 | </tr> | |
26 | </table> | |
27 | <table border="0" align="right" cellpadding="0" cellspacing="0"> | |
28 | <tr> | |
29 | <td><a href="../titan_main.html" alt="contents"><img border="0" src="../images/ao.jpg" width="53" height="40"></a></td> | |
30 | <td><a href="../titan_index.html" alt="index"><img border="0" src="../images/up.jpg" width="53" height="40"></a></td> | |
31 | <td><a href="lengthof.html" alt="previous"><img border="0" src="../images/left.jpg" width="53" height="40"></a></td> | |
3abe9331 | 32 | <td><a href="log2str.html" alt="next"><img border="0" src="../images/right.jpg" width="53" height="40"></a></td> |
970ed795 EL |
33 | </tr> |
34 | </table> | |
35 | <p><br clear="all"> | |
36 | </p> | |
37 | <hr> | |
38 | <h1>log</h1> | |
39 | <hr align="left" width="75%"> | |
40 | <p>The log statement provides the means to write a character string to some logging device associated with test control or the test component in which the statement is used. | |
41 | <ul> | |
42 | <li>In TITAN, the logging device is the log file. As an extension to the standard, it is possible to refer also to constants, variables, templates or expressions in the argument. Every element | |
43 | of the argument may be repeated.</li> | |
44 | </ul> | |
45 | <hr align="left" width="50%"> | |
46 | <div align="center"> | |
47 | <center> | |
48 | <table border="0" width="90%" bgcolor="#FFB599" cellpadding="4"> | |
49 | <tr> | |
50 | <td width="100%"> | |
51 | <h3 align="center"><font face="Courier New" color="#003258" size="5"><b>log ( "</b></font> <i>free_text_string</i> <font face="Courier New" color="#003258" size="5"><b>"</b></font> [<font | |
52 | face="Courier New" color="#003258" size="5"><b>,</b></font><i>constanst_ref</i>] [<font face="Courier New" color="#003258" size="5"><b>,</b></font><i>variable_ref</i>] [<font face="Courier New" | |
53 | color="#003258" size="5"><b>,</b></font><i>template_ref</i>] [<font face="Courier New" color="#003258" size="5"><b>,</b></font><i>expression</i>] <font face="Courier New" color="#003258" | |
54 | size="5"><b>);</b></font></h3> | |
55 | </td> | |
56 | </tr> | |
57 | </table> | |
58 | </center> | |
59 | </div> | |
60 | <ul> | |
61 | <li><i>free_text_string</i> is copied to the log file. It may contain numbers and letters from the BASIC LATIN and the LATIN-1 SUPPLEMENT character sets.</li> | |
62 | </ul> | |
63 | <div align="center"> | |
64 | <center> | |
65 | <table border="0" width="100%" bgcolor="#C9C2BB" cellpadding="4"> | |
66 | <tr> | |
67 | <td width="100%"> | |
68 | <blockquote> | |
69 | <p><u>TITAN specific extensions to the standard:</u></p> | |
70 | </blockquote> | |
71 | <ul> | |
72 | <li> | |
73 | <p><i>constanst_ref</i> refers to a constant. The value of the constant appears in the log file.</p> | |
74 | </li> | |
75 | <li> | |
76 | <p><i>variable_ref</i> refers to a variable. The actual value of the variable is copied to the log file.</p> | |
77 | </li> | |
78 | <li> | |
79 | <p><i>template_ref</i> refers to a template. The log file will contain the actual field values of the referred template.</p> | |
80 | </li> | |
81 | <li> | |
82 | <p><i>expression</i> denotes a predefined or user-defined TTCN-3 function. Functions with actual arguments can also be passed to log statement. This will print the return value of the | |
83 | function into the log. The match operation is an exception: instead of the Boolean return value the detailed matching process is logged field-by-field.</p> | |
84 | </li> | |
85 | </ul> | |
86 | </td> | |
87 | </tr> | |
88 | </table> | |
89 | </center> | |
90 | </div> | |
91 | <hr align="left" width="50%"> | |
92 | <p>Example 1: | |
93 | <p><font face="Courier New">log ("Note the following value: ", rnd(float .217))<br> | |
94 | </font> | |
95 | <p>The text between quotation marks will be added to the log file followed by the a random value generated using the seed 0.217.</p> | |
96 | <hr align="left" width="25%"> | |
97 | <p><a HREF="../info/BNF.html#logstatement">BNF definition</a> of <font face="Courier New">log</font></p> | |
98 | </body> | |
99 | </html> |