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Code Issues Releases Wiki Activity

- smarter handling of substitutions :subst: outside of brackets []

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This commit is contained in:
David Grudl
2009-03-08 23:27:31 +00:00
parent d0097d6c9c
commit 97969edace
3 changed files with 33 additions and 22 deletions
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14
dibi/dibi.php
View File

@@ -134,7 +134,7 @@ class dibi
public static $substs = array();
/** @var callback Substitution fallback */
public static $substFallBack;
public static $substFallBack = array(__CLASS__, 'defaultSubstFallback');
/** @var array @see addHandler */
private static $handlers = array();
@@ -647,6 +647,18 @@ class dibi
/**
* Default substitution fallback handler.
* @param string
* @return mixed
*/
public static function defaultSubstFallback($expr)
{
throw new InvalidStateException("Missing substitution for '$expr' expression.");
}
/********************* misc tools ****************d*g**/

31
dibi/libs/DibiTranslator.php
View File

@@ -121,14 +121,14 @@ final class DibiTranslator extends DibiObject
(?:
`(.+?)`| ## 1) `identifier`
\[(.+?)\]| ## 2) [identifier]
(\')((?:\'\'|[^\'])*)\'| ## 3,4) string
(\')((?:\'\'|[^\'])*)\'| ## 3,4) 'string'
(")((?:""|[^"])*)"| ## 5,6) "string"
(\'|")| ## 7) lone quote
:(\S*?:)| ## 8) substitution
%([a-zA-Z]{1,4})(?![a-zA-Z]) ## 9) modifier
:(\S*?:)([a-zA-Z0-9._]?)| ## 8,9) substitution
%([a-zA-Z]{1,4})(?![a-zA-Z]) ## 10) modifier
)/xs',
*/ // note: this can change $this->args & $this->cursor & ...
. preg_replace_callback('/(?=[`[\'":%])(?:`(.+?)`|\[(.+?)\]|(\')((?:\'\'|[^\'])*)\'|(")((?:""|[^"])*)"|(\'|")|:(\S*?:)|%([a-zA-Z]{1,4})(?![a-zA-Z]))/s',
. preg_replace_callback('/(?=[`[\'":%])(?:`(.+?)`|\[(.+?)\]|(\')((?:\'\'|[^\'])*)\'|(")((?:""|[^"])*)"|(\'|")|:(\S*?:)([a-zA-Z0-9._]?)|%([a-zA-Z]{1,4})(?![a-zA-Z]))/s',
array($this, 'cb'),
substr($arg, $toSkip)
);
@@ -357,7 +357,7 @@ final class DibiTranslator extends DibiObject
} else {
return substr($value, 0, $toSkip)
. preg_replace_callback(
'/(?=[`[\'":])(?:`(.+?)`|\[(.+?)\]|(\')((?:\'\'|[^\'])*)\'|(")((?:""|[^"])*)"|(\'|")|:(\S*?:))/s',
'/(?=[`[\'":])(?:`(.+?)`|\[(.+?)\]|(\')((?:\'\'|[^\'])*)\'|(")((?:""|[^"])*)"|(\'|")|:(\S*?:)([a-zA-Z0-9._]?))/s',
array($this, 'cb'),
substr($value, $toSkip)
);
@@ -418,10 +418,11 @@ final class DibiTranslator extends DibiObject
// [6] => string
// [7] => lone-quote
// [8] => substitution
// [9] => modifier (when called from self::translate())
// [9] => substitution flag
// [10] => modifier (when called from self::translate())
if (!empty($matches[9])) { // modifier
$mod = $matches[9];
if (!empty($matches[10])) { // modifier
$mod = $matches[10];
$cursor = & $this->cursor;
if ($cursor >= count($this->args) && $mod !== 'else' && $mod !== 'end') {
@@ -501,7 +502,9 @@ final class DibiTranslator extends DibiObject
}
if ($matches[8]) { // SQL identifier substitution
return $this->subCb(array(1 => substr($matches[8], 0, -1)));
$m = substr($matches[8], 0, -1);
$m = isset(dibi::$substs[$m]) ? dibi::$substs[$m] : call_user_func(dibi::$substFallBack, $m);
return $matches[9] == '' ? $this->formatValue($m, FALSE) : $m . $matches[9]; // value or identifier
}
die('this should be never executed');
@@ -536,15 +539,7 @@ final class DibiTranslator extends DibiObject
private static function subCb($m)
{
$m = $m[1];
if (isset(dibi::$substs[$m])) {
return dibi::$substs[$m];
} elseif (dibi::$substFallBack) {
return dibi::$substs[$m] = call_user_func(dibi::$substFallBack, $m);
} else {
return $m;
}
return isset(dibi::$substs[$m]) ? dibi::$substs[$m] : call_user_func(dibi::$substFallBack, $m);
}
}

8
examples/table-prefix.php → examples/substitutions.php
View File

@@ -36,10 +36,14 @@ dibi::test("UPDATE [database.::table] SET [text]='Hello World'");
// create substitution fallback
function substFallBack($expr)
{
if (defined($expr)) {
return constant($expr);
} else {
return 'the_' . $expr;
}
}
dibi::setSubstFallBack('substFallBack');
dibi::test("UPDATE [:account:user] SET [name]='John Doe'");
// -> UPDATE [the_accountuser] SET [name]='John Doe'
dibi::test("UPDATE [:account:user] SET [name]='John Doe', [active]=:true:");
// -> UPDATE [the_accountuser] SET [name]='John Doe', [active]=1