Not sure what the question is, but if you mean node base content the main/common template file is node.tpl.php. You can also make node-type.tpl.php files to theme a single type. For example if you had a content type called 'car', you could theme that type with node-car.tpl.php
Sorry it wasn't clear. I want to know what is the naming convention for function names that I can call in my template.php file that will do the same thing as you outlined above. e.g. in Drupal 5 if I wanted to theme a view I could call theme_views_view_name() and then theme that content. But I want to theme a content type instead.
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Not sure what the question
Not sure what the question is, but if you mean node base content the main/common template file is node.tpl.php. You can also make node-type.tpl.php files to theme a single type. For example if you had a content type called 'car', you could theme that type with node-car.tpl.php
Sorry it wasn't clear. I
Sorry it wasn't clear. I want to know what is the naming convention for function names that I can call in my template.php file that will do the same thing as you outlined above. e.g. in Drupal 5 if I wanted to theme a view I could call theme_views_view_name() and then theme that content. But I want to theme a content type instead.