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path: root/parse.awk
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BEGIN{
	lnum=0;
	cnum=0;
	type="";
	last_field="";
	FS=":";
	# category is an array of category data
	delete category;
	# link is an array of link data
	delete link;

	### configurable variables
	BASEDIR="./"; # the folder where the hierarchy will be created 
	ROOTSEL="/lawn/index.gph"; # the selector of the root page (back)
	HOST="localhost"; # the default host
	PORT="1500"; # and the default port
}

function is_empty(a){
	for (i in a)
		return 0;
	return 1;
}

function add_link(c){
	lnum+=1;
	for (k in c){
		link[lnum,k]=c[k]; 
	}
}

function add_category(c){
	cnum+=1;
	for (k in c){
		category[cnum,k]=c[k]; 
	}
}


function get_cur(cur){
	switch (cur["Type"]) {
		case "": {
			print "empty type -- skipping record";
			return;	
		}
		case "link": {
			add_link(cur);
			return;
		}
		case "category":{
			add_category(cur);
			return;
		}
		default: {
			printf("invalid type: %s -- skipping\n", cur["Type"]) ;
			return;
		}
	}
}


/^[A-Z][-a-zA-Z]+:/{## New field
	
	gsub(/^ +/,"",$2);
	gsub(/ *$/,"",$2);
	cur[$1]=$2;
	last_field=$1
}

/^[[:blank:]]*$/{ ## End of stanza
	if (!is_empty(cur)){
		get_cur(cur);
		delete cur;
		last_field="";
	}
}

/^[[:blank:]]+[^[:blank:]]+/{## Multi-line value
	if (!is_empty(cur) && last_field!=""){
		gsub(/^[[:blank:]]+/, "", $0);
		cur[last_field]=cur[last_field] "\n" $0;
	}
}

END{
	render_init();
	render_categories(category, cnum);
	render_post_categories(category, cnum);
	render_links(category, cnum, link, lnum);
	render_finalise(category, cnum, link, lnum);
	dump_links(category, cnum, link, lnum);
}