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WebMake Documentation (version 2.2)

The Order of Processing

In order to fully control the WebMake file processing using Perl code, it's important to know the order in which the tags and so on are parsed.

Parsing of the WebMake File

Initially, WebMake used a set order of tag parsing, but this proved to be unwieldy and confusing. Now, it uses the order in which the tags are defined in the .wmk file, so if you want tag A to be interpreted before tag B, put A before B and the right thing will happen.

Perl code embedded inside the WebMake file, using <{perl}> processing directives, will be evaluated there and then (unless the <{perl}> block is embedded in another block, such as a content item or <out> file block).

This means that you can define content items by hand, search for other content items using a <contents> tag, and then use a <{perl}> section to define a list of all content items which satisfy a particular set of criteria.

This list can then be used in later <{perl}> blocks, content references, or <for> tags.

Processing the <out> Tags

Once the file is fully parsed, the <out> tags are processed, one by one.

At this point, content references, <{set}> tags, and <{perl}> processing directives will be interpreted, if they are found within content chunks. Finally, deferred content references and metadata references are expanded.

Eventually, no content references, <{set}> tags, <{perl}> processing directives, metadata references, or URL references are left in the file text. At this point, the file is written to disk under a temporary name, and the next output file is processed.

Once all output files are processed, the entire set of files which have been modified are moved into place, replacing any previous versions.

WebMake Documentation (version 2.2)
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