add toclinker, fix h1find regex and indexer typos

lib/jodoc-lib.js

@@ -73,7 +73,7 @@ function index_to_json (h1s) {
 function h1finder (processed) {
 	var h1s = {};
 	var files_to_h1s = {};
-	var h1find = /\<h1\>([^\<]+)\</h1\>/g;
+	var h1find = /\<h1\>([^\<]+)\<\/h1\>/g;
 	processed.forEach(
 		function(file_info) {
 			var accum_h1s = [];
@@ -110,7 +110,7 @@ function indexer (h1s, outputdir) {
 	keywords.forEach(
 		function(keyword) {
 			// works for RTL languages only I guess
-			var letter = keyword.toLocaleUpperCase.substr(0);
+			var letter = keyword.toLocaleUpperCase().substr(0);
 			if (typeof keyword_letters[letter] === "undefined") {
 				keyword_letters[letter] = [formatter(keyword)];
 			} else {
@@ -127,8 +127,25 @@ function indexer (h1s, outputdir) {
 	return '<h1>Index</h1>\n<span id="index">' + keywords_marked.join("\n") + '</span>';
 }
 
+// Expand {} placeholders in table of contents
+// input: {h1s, files_to_h1s}, indent before '{}', interior of toc '{}' line
+// output: markdown list of matching h1s
+function toclinker(h1bag, indent, pathpart) {
+	var files_to_h1s = h1bag.files_to_h1s;
+	var matching_files = Object.keys(files_to_h1s), matching_h1s = [];
+	matching_files = matching_files.filter(function (file){ return file.match(pathpart) });
+	matching_files.forEach(function (matching_file){
+		matching_h1s = matching_h1s.concat(files_to_h1s[matching_file]);
+	});
+	matching_h1s = matching_h1s.sort().map(function(matching_h1) {
+		return indent + '* ' + matching_h1;
+	});
+	return matching_h1s.join("\n");
+}
+
 exports.docker = docker;
 exports.html_header = html_header;
 exports.munge_filename = munge_filename;
 exports.h1finder = h1finder;
 exports.indexer = indexer;
+exports.toclinker = toclinker;