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path: root/htdocs/exceptions
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-rw-r--r--htdocs/exceptions/compile.chtml3
-rw-r--r--htdocs/exceptions/index.chtml3
-rw-r--r--htdocs/exceptions/preprocess.chtml3
-rw-r--r--htdocs/exceptions/runtime.chtml3
4 files changed, 8 insertions, 4 deletions
diff --git a/htdocs/exceptions/compile.chtml b/htdocs/exceptions/compile.chtml
index 68dd034..94bd2e1 100644
--- a/htdocs/exceptions/compile.chtml
+++ b/htdocs/exceptions/compile.chtml
@@ -1,52 +1,53 @@
1% html(); return; /* vim:set ft=sitecing: */ 1% /* vim:set ft=sitecing: */
2%%derive layout = "/ancestry/layout.chtml"; 2%%derive layout = "/ancestry/layout.chtml";
3%%pragma main=page
3<%constructor> 4<%constructor>
4 b_strict = false; 5 b_strict = false;
5 PN_PREV("/exceptions/preprocess","preprocess","preprocessing errors"); 6 PN_PREV("/exceptions/preprocess","preprocess","preprocessing errors");
6 PN_NEXT("/exceptions/runtime","runtime","runtime exceptions"); 7 PN_NEXT("/exceptions/runtime","runtime","runtime exceptions");
7</%constructor> 8</%constructor>
8<%codemethod string title() %> 9<%codemethod string title() %>
9 return "compile-time exceptions handling"; 10 return "compile-time exceptions handling";
10</%codemethod> 11</%codemethod>
11<%method void content() %> 12<%method void content() %>
12 <h1>site-C-ing compile-time exception handling</h1> 13 <h1>site-C-ing compile-time exception handling</h1>
13 <p> 14 <p>
14 Similar to <a href="/exceptions/preprocess">preprocessing exceptions</a> 15 Similar to <a href="/exceptions/preprocess">preprocessing exceptions</a>
15 there is a wide range of errors you may put into your code which will pass 16 there is a wide range of errors you may put into your code which will pass
16 through preprocessor and will be caught later at the compile-time. 17 through preprocessor and will be caught later at the compile-time.
17 </p> 18 </p>
18 <p> 19 <p>
19 Once you complete writing your <a 20 Once you complete writing your <a
20 href="/view/htdocs/exceptions/development/compile.chtml" target="insert" 21 href="/view/htdocs/exceptions/development/compile.chtml" target="insert"
21 title="the link opens in the frame below">erroneous code</a> and 22 title="the link opens in the frame below">erroneous code</a> and
22 <em>site-C-ing</em> is done preprocessing it, it will feed the preprocessed 23 <em>site-C-ing</em> is done preprocessing it, it will feed the preprocessed
23 code into c++ compiler which will refuse to compile the code like this. This 24 code into c++ compiler which will refuse to compile the code like this. This
24 is where <a href="/view/htdocs/handlers/exception_dev" target="insert" 25 is where <a href="/view/htdocs/handlers/exception_dev" target="insert"
25 title="the link opens in the frame below">the exception handler</a>, 26 title="the link opens in the frame below">the exception handler</a>,
26 specified in <a href="/view/htdocs/exceptions/development/.scrc" 27 specified in <a href="/view/htdocs/exceptions/development/.scrc"
27 target="insert" title="the link opens in the frame below">the configuration 28 target="insert" title="the link opens in the frame below">the configuration
28 file</a>, takes over the process and gives you <a 29 file</a>, takes over the process and gives you <a
29 href="/exceptions/development/compile" target="insert" title="the link opens 30 href="/exceptions/development/compile" target="insert" title="the link opens
30 in the frame below">the report</a>. Like with any handler, you may wish to 31 in the frame below">the report</a>. Like with any handler, you may wish to
31 set some <a href="/view/htdocs/handlers/exception_prod" target="insert" 32 set some <a href="/view/htdocs/handlers/exception_prod" target="insert"
32 title="the link opens in the frame below">different handler</a> in your <a 33 title="the link opens in the frame below">different handler</a> in your <a
33 href="/view/htdocs/exceptions/production/.scrc" target="insert" title="the 34 href="/view/htdocs/exceptions/production/.scrc" target="insert" title="the
34 link opens in the frame below">production configuration</a>, which just gives 35 link opens in the frame below">production configuration</a>, which just gives
35 user <a href="/exceptions/production/preprocess" target="insert" title="the 36 user <a href="/exceptions/production/preprocess" target="insert" title="the
36 link opens in the frame below">a friendly yet lame excuse</a>. 37 link opens in the frame below">a friendly yet lame excuse</a>.
37 </p> 38 </p>
38 <p class="note"> 39 <p class="note">
39 Note, that these output pages are fakes -- I do not want to spawn the 40 Note, that these output pages are fakes -- I do not want to spawn the
40 compiler each time you want to see the output and put this unnecessary load 41 compiler each time you want to see the output and put this unnecessary load
41 on cpu. These static pages are in fact saved output of the real exception 42 on cpu. These static pages are in fact saved output of the real exception
42 handlers. 43 handlers.
43 </p> 44 </p>
44 45
45 <div class="insert"> 46 <div class="insert">
46 <iframe id="insert" name="insert" src="about:blank" width="95%" height="300"> 47 <iframe id="insert" name="insert" src="about:blank" width="95%" height="300">
47 <p>I wanted to put an &lt;iframe&gt; here, but your browser does not seem to 48 <p>I wanted to put an &lt;iframe&gt; here, but your browser does not seem to
48 support it. That is okay, it still will open links somehow.</p> 49 support it. That is okay, it still will open links somehow.</p>
49 </iframe> 50 </iframe>
50 </div> 51 </div>
51 52
52</%method> 53</%method>
diff --git a/htdocs/exceptions/index.chtml b/htdocs/exceptions/index.chtml
index 6bb2a3c..c700e42 100644
--- a/htdocs/exceptions/index.chtml
+++ b/htdocs/exceptions/index.chtml
@@ -1,56 +1,57 @@
1% html(); return; /* vim:set ft=sitecing: */ 1% /* vim:set ft=sitecing: */
2%%derive layout = "/ancestry/layout.chtml"; 2%%derive layout = "/ancestry/layout.chtml";
3%%pragma main=page
3<%constructor> 4<%constructor>
4 PN_PREV("/simple","simple page","building a really simple page"); 5 PN_PREV("/simple","simple page","building a really simple page");
5 PN_NEXT("/exceptions/preprocess","preprocess","preprocessing errors"); 6 PN_NEXT("/exceptions/preprocess","preprocess","preprocessing errors");
6</%constructor> 7</%constructor>
7<%codemethod string title() %> 8<%codemethod string title() %>
8 return "exceptions handling"; 9 return "exceptions handling";
9</%codemethod> 10</%codemethod>
10<%method void content() %> 11<%method void content() %>
11 <h1>site-C-ing exception handling</h1> 12 <h1>site-C-ing exception handling</h1>
12 <p> 13 <p>
13 The purpose of this section is to give an overview of the <em>site-C-ing</em> 14 The purpose of this section is to give an overview of the <em>site-C-ing</em>
14 exception handling mechanism. Before the web visitor can see the page each 15 exception handling mechanism. Before the web visitor can see the page each
15 site-C-ing component goes through a few stages, namely, preprocessing, 16 site-C-ing component goes through a few stages, namely, preprocessing,
16 compiling and execution. Having three stages to go through also means three 17 compiling and execution. Having three stages to go through also means three
17 stages one can fail to go through and three exciting opportunities to handle 18 stages one can fail to go through and three exciting opportunities to handle
18 different errors. 19 different errors.
19 </p> 20 </p>
20 <p> 21 <p>
21 First each component is preprocessed so that you can feed the valid c++ code 22 First each component is preprocessed so that you can feed the valid c++ code
22 to the compiler. Here is where the preprocessor can choke at your broken 23 to the compiler. Here is where the preprocessor can choke at your broken
23 source code. Once preprocessor failes to parse your code it will throw an 24 source code. Once preprocessor failes to parse your code it will throw an
24 exception which <em>site-C-ing</em> will catch and pass to <a 25 exception which <em>site-C-ing</em> will catch and pass to <a
25 href="/sources/htdocs/handlers/exception_dev" title="development mode 26 href="/sources/htdocs/handlers/exception_dev" title="development mode
26 exception handler source">the exception handler component</a>. Want to <a 27 exception handler source">the exception handler component</a>. Want to <a
27 href="/exceptions/preprocess">read more</a> about preprocessor exception 28 href="/exceptions/preprocess">read more</a> about preprocessor exception
28 handling? 29 handling?
29 </p> 30 </p>
30 <p> 31 <p>
31 After the preprocessing stage is over we have a great opportunity to catch 32 After the preprocessing stage is over we have a great opportunity to catch
32 the compile-time errors. After <em>site-C-ing</em> fails to compile the 33 the compile-time errors. After <em>site-C-ing</em> fails to compile the
33 component it throws another exception and passes it to the same handler which 34 component it throws another exception and passes it to the same handler which
34 may show you some information on what's gone wrong with your source code from 35 may show you some information on what's gone wrong with your source code from
35 the compiler's perspective. If you've gone this far you definitely want to <a 36 the compiler's perspective. If you've gone this far you definitely want to <a
36 href="/exceptions/compile">read more</a> about the compiler error handling. 37 href="/exceptions/compile">read more</a> about the compiler error handling.
37 </p> 38 </p>
38 <p class="note"> 39 <p class="note">
39 Note, that it is likely that you will want to disable the steps above for the 40 Note, that it is likely that you will want to disable the steps above for the
40 production environment to save time on unnecessary checking whether the 41 production environment to save time on unnecessary checking whether the
41 component is up to date. 42 component is up to date.
42 </p> 43 </p>
43 <p> 44 <p>
44 Finally, we need to execute the component and present its output to the web 45 Finally, we need to execute the component and present its output to the web
45 site visitor. This is also where things may go wrong and here is where your 46 site visitor. This is also where things may go wrong and here is where your
46 component may throw an exception for the engine to catch and pass to the 47 component may throw an exception for the engine to catch and pass to the
47 handler. Feel free to <a href="/exceptions/runtime">learn more</a> about it 48 handler. Feel free to <a href="/exceptions/runtime">learn more</a> about it
48 as well. 49 as well.
49 </p> 50 </p>
50 <p class="note"> 51 <p class="note">
51 One more thing you will likely want to have differently in production 52 One more thing you will likely want to have differently in production
52 environment is <a href="/sources/htdocs/handlers/exception_prod" 53 environment is <a href="/sources/htdocs/handlers/exception_prod"
53 title="production mode exception handler source">an exception handler</a> 54 title="production mode exception handler source">an exception handler</a>
54 which will not give out that much unnecessary information to the user. 55 which will not give out that much unnecessary information to the user.
55 </p> 56 </p>
56</%method> 57</%method>
diff --git a/htdocs/exceptions/preprocess.chtml b/htdocs/exceptions/preprocess.chtml
index 88b8741..e42b102 100644
--- a/htdocs/exceptions/preprocess.chtml
+++ b/htdocs/exceptions/preprocess.chtml
@@ -1,48 +1,49 @@
1% html(); return; /* vim:set ft=sitecing: */ 1% /* vim:set ft=sitecing: */
2%%derive layout = "/ancestry/layout.chtml"; 2%%derive layout = "/ancestry/layout.chtml";
3%%pragma main=page
3<%constructor> 4<%constructor>
4 b_strict = false; 5 b_strict = false;
5 PN_PREV("/exceptions","exceptions","exception handling overview"); 6 PN_PREV("/exceptions","exceptions","exception handling overview");
6 PN_NEXT("/exceptions/compile","compile-time","compile-time errors"); 7 PN_NEXT("/exceptions/compile","compile-time","compile-time errors");
7</%constructor> 8</%constructor>
8<%codemethod string title() %> 9<%codemethod string title() %>
9 return "preprocessor exceptions handling"; 10 return "preprocessor exceptions handling";
10</%codemethod> 11</%codemethod>
11<%method void content() %> 12<%method void content() %>
12 <h1>site-C-ing preprocessor exception handling</h1> 13 <h1>site-C-ing preprocessor exception handling</h1>
13 <p> 14 <p>
14 It was one of those days when you just can't type right and can't think of 15 It was one of those days when you just can't type right and can't think of
15 what you're typing. It is not unusual that, under such circumstances, you end 16 what you're typing. It is not unusual that, under such circumstances, you end
16 up with a code like <a 17 up with a code like <a
17 href="/view/htdocs/exceptions/development/preprocess.chtml" target="insert" 18 href="/view/htdocs/exceptions/development/preprocess.chtml" target="insert"
18 title="the link opens in the frame below">this</a> -- by the time you were 19 title="the link opens in the frame below">this</a> -- by the time you were
19 about to close your <code>&lt;%code&gt;</code> block you were thinking about 20 about to close your <code>&lt;%code&gt;</code> block you were thinking about
20 some constructor in some component elsewhere in the universe. 21 some constructor in some component elsewhere in the universe.
21 </p> 22 </p>
22 <p> 23 <p>
23 <em>site-C-ing</em> parser will see the inconsistency and throw an exception 24 <em>site-C-ing</em> parser will see the inconsistency and throw an exception
24 which will be caught and passed to <a 25 which will be caught and passed to <a
25 href="/view/htdocs/handlers/exception_dev" target="insert" title="the link 26 href="/view/htdocs/handlers/exception_dev" target="insert" title="the link
26 opens in the frame below">the handler</a>, specified in <a 27 opens in the frame below">the handler</a>, specified in <a
27 href="/view/htdocs/exceptions/development/.scrc" target="insert" title="the 28 href="/view/htdocs/exceptions/development/.scrc" target="insert" title="the
28 link opens in the frame below">the configuration file</a>, which will produce 29 link opens in the frame below">the configuration file</a>, which will produce
29 some nice, human-readable <a href="/exceptions/development/preprocess" 30 some nice, human-readable <a href="/exceptions/development/preprocess"
30 target="insert" title="the link opens in the frame below">output</a>. Well, 31 target="insert" title="the link opens in the frame below">output</a>. Well,
31 you may not wish to give out all this information in the production 32 you may not wish to give out all this information in the production
32 environment, so you just put in your <a 33 environment, so you just put in your <a
33 href="/view/htdocs/exceptions/production/.scrc" target="insert" title="the 34 href="/view/htdocs/exceptions/production/.scrc" target="insert" title="the
34 link opens in the frame below">configuration file</a> some <a 35 link opens in the frame below">configuration file</a> some <a
35 href="/view/htdocs/handlers/exception_prod" target="insert" title="the link 36 href="/view/htdocs/handlers/exception_prod" target="insert" title="the link
36 opens in the frame below">different handler</a>, which just gives user <a 37 opens in the frame below">different handler</a>, which just gives user <a
37 href="/exceptions/production/preprocess" target="insert" title="the link 38 href="/exceptions/production/preprocess" target="insert" title="the link
38 opens in the frame below">a friendly yet lame excuse</a>. 39 opens in the frame below">a friendly yet lame excuse</a>.
39 </p> 40 </p>
40 41
41 <div class="insert"> 42 <div class="insert">
42 <iframe id="insert" name="insert" src="about:blank" width="95%" height="300"> 43 <iframe id="insert" name="insert" src="about:blank" width="95%" height="300">
43 <p>I wanted to put an &lt;iframe&gt; here, but your browser does not seem to 44 <p>I wanted to put an &lt;iframe&gt; here, but your browser does not seem to
44 support it. That is okay, it still will open links somehow.</p> 45 support it. That is okay, it still will open links somehow.</p>
45 </iframe> 46 </iframe>
46 </div> 47 </div>
47 48
48</%method> 49</%method>
diff --git a/htdocs/exceptions/runtime.chtml b/htdocs/exceptions/runtime.chtml
index 1fcd80f..989e89f 100644
--- a/htdocs/exceptions/runtime.chtml
+++ b/htdocs/exceptions/runtime.chtml
@@ -1,49 +1,50 @@
1% html(); return; /* vim:set ft=sitecing: */ 1% /* vim:set ft=sitecing: */
2%%derive layout = "/ancestry/layout.chtml"; 2%%derive layout = "/ancestry/layout.chtml";
3%%pragma main=page
3<%constructor> 4<%constructor>
4 b_strict = false; 5 b_strict = false;
5 PN_PREV("/exceptions/compile","compile-time","compile-time errors"); 6 PN_PREV("/exceptions/compile","compile-time","compile-time errors");
6 PN_NEXT("/quickref/","quick reference","quick reference"); 7 PN_NEXT("/quickref/","quick reference","quick reference");
7</%constructor> 8</%constructor>
8<%codemethod string title() %> 9<%codemethod string title() %>
9 return "runtime exceptions handling"; 10 return "runtime exceptions handling";
10</%codemethod> 11</%codemethod>
11<%method void content() %> 12<%method void content() %>
12 <h1>site-C-ing runtime exception handling</h1> 13 <h1>site-C-ing runtime exception handling</h1>
13 <p> 14 <p>
14 The component may throw an exception while executing and the 15 The component may throw an exception while executing and the
15 <em>site-C-ing</em> will gladly pass it to the handler component which will 16 <em>site-C-ing</em> will gladly pass it to the handler component which will
16 give the user appropriate output (unless it throws an exception itself, of 17 give the user appropriate output (unless it throws an exception itself, of
17 course). Here you will see an example output provided by the handler bundled 18 course). Here you will see an example output provided by the handler bundled
18 with the <em>site-C-ing</em>. 19 with the <em>site-C-ing</em>.
19 </p> 20 </p>
20 21
21 <p> 22 <p>
22 Suppose you have <a href="/view/htdocs/exceptions/development/runtime.chtml" 23 Suppose you have <a href="/view/htdocs/exceptions/development/runtime.chtml"
23 target="insert" title="the link opens in the frame below">a component</a>, 24 target="insert" title="the link opens in the frame below">a component</a>,
24 which at some point throws an exception. Of course, <em>site-C-ing</em> will 25 which at some point throws an exception. Of course, <em>site-C-ing</em> will
25 catch the exception and pass it to <a 26 catch the exception and pass it to <a
26 href="/view/htdocs/handlers/exception_dev" target="insert" title="the link 27 href="/view/htdocs/handlers/exception_dev" target="insert" title="the link
27 opens in the frame below">the handler</a>, specified in <a 28 opens in the frame below">the handler</a>, specified in <a
28 href="/view/htdocs/exceptions/development/.scrc" target="insert" title="the 29 href="/view/htdocs/exceptions/development/.scrc" target="insert" title="the
29 link opens in the frame below">the configuration file</a>, which will produce 30 link opens in the frame below">the configuration file</a>, which will produce
30 some nice, human-readable <a href="/exceptions/development/runtime" 31 some nice, human-readable <a href="/exceptions/development/runtime"
31 target="insert" title="the link opens in the frame below">output</a>. Well, 32 target="insert" title="the link opens in the frame below">output</a>. Well,
32 you may not wish to give out all this information in the production 33 you may not wish to give out all this information in the production
33 environment, so you just put in your <a 34 environment, so you just put in your <a
34 href="/view/htdocs/exceptions/production/.scrc" target="insert" title="the 35 href="/view/htdocs/exceptions/production/.scrc" target="insert" title="the
35 link opens in the frame below">configuration file</a> some <a 36 link opens in the frame below">configuration file</a> some <a
36 href="/view/htdocs/handlers/exception_prod" target="insert" title="the link 37 href="/view/htdocs/handlers/exception_prod" target="insert" title="the link
37 opens in the frame below">different handler</a>, which just gives user <a 38 opens in the frame below">different handler</a>, which just gives user <a
38 href="/exceptions/production/runtime" target="insert" title="the link opens 39 href="/exceptions/production/runtime" target="insert" title="the link opens
39 in the frame below">a friendly yet lame excuse</a>. 40 in the frame below">a friendly yet lame excuse</a>.
40 </p> 41 </p>
41 42
42 <div class="insert"> 43 <div class="insert">
43 <iframe id="insert" name="insert" src="about:blank" width="95%" height="300"> 44 <iframe id="insert" name="insert" src="about:blank" width="95%" height="300">
44 <p>I wanted to put an &lt;iframe&gt; here, but your browser does not seem to 45 <p>I wanted to put an &lt;iframe&gt; here, but your browser does not seem to
45 support it. That is okay, it still will open links somehow.</p> 46 support it. That is okay, it still will open links somehow.</p>
46 </iframe> 47 </iframe>
47 </div> 48 </div>
48 49
49</%method> 50</%method>