I created this pattern: {if ([^}]*)}((?:[\w\s]+[^}]*)){\/if}
but I have done a long time ago now, the pattern is, for example:
{if $module=admin}
{/if}
but I want to find:
{if $module=admin}
{else}
{/if}
as far as possible to find both with the same pattern.
Any ideas? thank you very much :)
/{if ([^}]+)}([\W\w]*?)(?:{else}([\W\w]*?))?{\/if}/g
{if Literal text.([^}]+) If condition: One or more non-closing-curly-brace (}) characters, all captured.} Literal text.([\W\w]*?) Inside If: Zero or more characters. Match until the next part is found. (Very inefficient; you can rewrite to make this more performant.)(?:{else}([\W\w]*?))? Optional group.{else} Else: Literal text.([\W\w]*?) Inside Else: Zero or more characters. Match until the next part is found. (Very inefficient; you can rewrite to make this more performant.){\/if} Closing: Literal text./(?:{(?:if ([^}]+)|(else)|(\/if))}|^)([^{]*(?:(?!{(?:if|else|\/if)}){[^{]*)*)/g
Okay, this is way more complicated than the previous one, so I'll skip the full explanation for now (unless you request it later).
Basically, each match will give you a number of captured strings, in the following order:
$module=admin).This will give you all the pieces you need to implement your special {if} tags. I can give you pointers as what things you should think about, but I'll leave the PHP coding to you.
HINT: In your code, you can sort of build the structure of the document. For example:
[
{ content: "blah blah blah" },
{ if-condition: "module=page",
content: ["after opening if, before else"],
else-content: ["after else, before end of if", {
if-condition: "page=4",
content: ["nested content"]
}]
},
{ content: "end of file" }
]
Then you could loop over that and re-render it all however you like.