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	Provide a way for hooks to tag formats onto the commands they fire so
that the user can get at additional information - now used for the "hook" format, more to come.
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								format.c
									
									
									
									
									
								
							
							
						
						
									
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								format.c
									
									
									
									
									
								
							@@ -468,6 +468,19 @@ format_cb_pane_tabs(struct format_tree *ft, struct format_entry *fe)
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	evbuffer_free(buffer);
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}
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/* Merge a format tree. */
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static void
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format_merge(struct format_tree *ft, struct format_tree *from)
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{
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	struct format_entry	*fe;
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	RB_FOREACH(fe, format_entry_tree, &from->tree) {
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		if (fe->value != NULL)
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			format_add(ft, fe->key, "%s", fe->value);
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	}
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}
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/* Create a new tree. */
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struct format_tree *
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format_create(struct cmdq_item *item, int flags)
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@@ -491,8 +504,8 @@ format_create(struct cmdq_item *item, int flags)
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	if (item != NULL && item->cmd != NULL)
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		format_add(ft, "command", "%s", item->cmd->entry->name);
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	if (item != NULL && item->hook != NULL)
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		format_add(ft, "hook", "%s", item->hook);
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	if (item != NULL && item->formats != NULL)
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		format_merge(ft, item->formats);
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	return (ft);
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}
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