fenom/docs/ru/dev/schema.md
2014-08-08 15:58:50 +04:00

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How Fenom works
===============
```
use Fenom;
use Fenom\Render;
use Fenom\Template;
use Fenom\Tokenizer;
______________________________
| |
| Fenom::display($tpl, $var) |
|____________________________|
|
| search the template
______________|___________________________
| Template loaded into Fenom::$_storage? |
| Fenom::getTemplate($tpl) |
|________________________________________|
| |
| yes | no
______________|__________ |
| Render the template | |
| Render::display($tpl) | |
|_______________________| |
| |
| (hot start) |
| ______________________________|__________________
| | Template already compiled and stored in cache |
| | Fenom::getTemplate($template) |
| |_______________________________________________|
| | |
| | yes | no
| ____________|_______________ |
| | Load template from cache | not found |
| | Fenom::_load(...) |-------------->|
| |__________________________| |
| | |
| | found |
| ____________|___________ |
| | Validate template | invalid |
| | Render::isValid(...) |------------------>|
| |______________________| |
| | |
| | valid |
| ____________|____________ |
| | Render the template | |
|<----| Render::display(...) | |
| |_______________________| |
| |
| _____________________________ ________|___________________
| | Initialize compiler | | Compile the template |
| | Template::load($tpl) |<-----| Fenom::compile($tpl) |
| |___________________________| |__________________________|
| |
| ____________|________________
| | Load template source |
| | Provider::getSource($tpl) |
| |___________________________|
| |
| ____________|______________
| | Start compilation |
| | Template::compile($tpl) |
| |_________________________|
| |
| ____________|______________
| | Search template tag |
| | Template::compile($tpl) |<------------------------------------------------------|
| |_________________________| |
| | | |
| | not found | found |
| | _____________|_______________ _______________________________ |
| | | Tokenize the tag's code | | Parse the tag | |
| | | new Tokenizer($tag) |--->| Template::parseTag($tokens) | |
| | |___________________________| |_____________________________| |
| | | | |
| | is tag | | is expression |
| | _______________________________ | _______________|________________ |
| | | Detect tag name | | | Detect expression | |
| | | Template::parseAct($tokens) |<--- | Template::parseAct($tokens) | |
| | | Get callback by tag name | | Parse expression | |
| | | Fenom::getTag($tag_name) | | Template::parseExpr($tokens) | |
| | |_____________________________| |______________________________| |
| | | | |
| | | found | |
| | _______________|_______________ | |
| | | Invoke callback | | |
| | | Template::parseAct($tokens) | | |
| | |_____________________________| | |
| | | | |
| | _______________|________________ | |
| | | Append code to template | | |
| | | Template::_appendCode($code) |<----------------------- |
| | |______________________________| |
| | | |
| | _______________|___________ |
| | | Finalize the tag | starts search next tag |
| | | Template::compile($tpl) |>------------------------------------------------
| | |_________________________|
| |
| __|___________________________________
| | Store template to cache |
| | Fenom::compile($tpl) |
| | Store template to Fenom::$_storage |
| | Fenom::getTemplate($tpl) |
| |____________________________________|
| |
| ____________|_____________
| | Render the template |
| | Template::display(...) |
| |________________________|
| |
| | (cold start)
__|_________|________
| |
| DONE |
|___________________|
```