Fmt Page Name
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This page describes an internal function in PmWiki's engine called
FmtPageName()
. The contents are not intended for those with a weak heart
;-)
Also see: PmWiki.Functions
FmtPageName
($fmt, $pagename)
Returns $fmt
, with $variable and internationalisation substitutions performed, under the assumption that the current page is pagename
. See PmWiki.Variables for an (incomplete) list of available variables, PmWiki.Internationalizations for internationalisation.
The function FmtPageName()
applies internationalization-substitutions
and $Variable-substitions to the string $fmt under the assumption that the
current page is $pagename.
The substitutions goes as follows:
- Replace any sequences of the form
$XyzFmt
with value of any corresponding global variable. - Process the string for any
$[...]
phrases (internationalized phrase), using the currently loaded translation tables. - Perform any pattern replacements from the array
$FmtP
. Typically this is used to handle things like $Name and $Group etc that are specific to the name of the current page. - If
$EnablePathInfo
isn't set, convertURIs
to use the syntax $ScriptUrl?n=<Group>.<Name> instead of $ScriptUrl/<Group>/<Name>. - Replace any $-sequences with global variables (caching as needed) of the same name (in reverse alphabetical order) *
- Replace any $-sequences with values out of the array
$FmtV
.
Note that FmtPageName
() is automatically aware of any global
variables. However, since modifying global variables may be expensive, the
array $FmtV
exists as a way to avoid rebuilding the variable cache for
values that change frequently.
To be very specific, here's what Pm wrote regarding different ways of defining a variable that can be used by FmtPageName (when it is formatting a string):
- Set a global variable. FmtPageName() automatically performs substitution on all global variables that aren't arrays. If the variable is going to change value over repeated calls to FmtPageName, it's probably better to use
$FmtV
as in the next item. - Set a value in the
$FmtV
array.$FmtV
['$MyVariable']='something' means to replace instances of '$MyVariable' with 'something'. Use this for variables that change value frequently over multiple calls to FmtPageName. - Set a pattern/replacement in the
$FmtP
array. This is normally done for substitutions that have to be dynamic somehow based on the pagename being referenced, such as '$Title', '$Group', '$Name', '$PageUrl', etc.
Also see: Cookbook:Functions#FmtPageName
Finally, here's something else Pm wrote that is related and explains why we have this function:
- Generating the full name, group, title, or url of a page (other than the currently displayed page)
- Substituting the values of global variables
- Performing internationalization substitutions
- Converting $ScriptUrl/$Group/$Name to $ScriptUrl?n=$Group.$Name for sites that cannot handle PATH_INFO urls
- Other substitutions needed by specific functions
$page = `ReadPage($pagename); PCache($pagename, $page); $pvar = `FmtPageName('$Title', $pagename); $pvar = `FmtPageName('$`LastModifiedBy', $pagename);
Source code for FmtPageName()
Note: The source code below was taken from "pmwiki-2.0.beta55", while the current version is pmwiki-2.2.0-beta68.
## FmtPageName handles $[internationalization] and $Variable ## substitutions in strings based on the $pagename argument. function FmtPageName($fmt,$pagename) { # Perform $-substitutions on $fmt relative to page given by $pagename global $GroupPattern, $NamePattern, $EnablePathInfo, $ScriptUrl, $GCount, $UnsafeGlobals, $FmtV, $FmtP, $PCache, $AsSpacedFunction; if (strpos($fmt,'$')===false) return $fmt; $fmt = preg_replace('/\\$([A-Z]\\w*Fmt)\\b/e','$GLOBALS[\'$1\']',$fmt); $fmt = preg_replace('/\\$\\[(?>([^\\]] ))\\]/e',"XL(PSS('$1'))",$fmt); $match = array('','$Group','$Name'); if (preg_match("/^($GroupPattern)[\\/.]($NamePattern)\$/", $pagename, $m)) $match = $m; $fmt = preg_replace(array_keys($FmtP),array_values($FmtP),$fmt); $fmt = preg_replace('!\\$ScriptUrl/([^?#\'"\\s<>] )!e', (@$EnablePathInfo) ? "'$ScriptUrl/'.PUE('$1')" : "'$ScriptUrl?n='.str_replace('/','.',PUE('$1'))", $fmt); if (strpos($fmt,'$')===false) return $fmt; static $g; if ($GCount != count($GLOBALS) count($FmtV)) { $g = array(); foreach($GLOBALS as $n=>$v) { if (is_array($v) || is_object($v) || isset($FmtV["\$$n"]) || in_array($n,$UnsafeGlobals)) continue; $g["\$$n"] = $v; } $GCount = count($GLOBALS) count($FmtV); krsort($g); reset($g); } $fmt = str_replace(array_keys($g),array_values($g),$fmt); $fmt = str_replace(array_keys($FmtV),array_values($FmtV),$fmt); return $fmt; }
Sorry for not coming back on this one. We added the Event caegroty a couple of weeks back. You should now be able to associate your company to the Events caegroty once you have logged in. You can also upload photos, etc. Please let me know if you have any difficulty and I’ll be happy to help.Best re,ardsgMartin.