8 uses of COMMENT_NODE_READ_WRITE in Drupal 5

comment_form_alter in modules/comment/comment.module

comment_link in modules/comment/comment.module

Implementation of hook_link().

comment_links in modules/comment/comment.module

comment_nodeapi in modules/comment/comment.module

Implementation of hook_nodeapi().

comment_render in modules/comment/comment.module

Renders comment(s).

comment_reply in modules/comment/comment.module

This function is responsible for generating a comment reply form. There are several cases that have to be handled, including:

comment_save in modules/comment/comment.module

Accepts a submission of new or changed comment content.

_blogapi_mt_extra in modules/blogapi/blogapi.module

Handles extra information sent by clients according to MovableType's spec.