From accdca6d30d54bdbc6dd1c875bec1f228bb2dea2 Mon Sep 17 00:00:00 2001
From: "Fletcher T. Penney" <fletcher@fletcherpenney.net>
Date: Fri, 10 Mar 2017 18:43:19 -0500
Subject: [PATCH] FIXED: Don't duplicate LaTeX glossary definitions

---
 Sources/libMultiMarkdown/latex.c | 29 +++++++++++++++++-------
 tests/MMD6Tests/Glossaries.tex   | 38 ++++++++++++++++----------------
 2 files changed, 40 insertions(+), 27 deletions(-)

diff --git a/Sources/libMultiMarkdown/latex.c b/Sources/libMultiMarkdown/latex.c
index 3161fcb..a3ec7b7 100644
--- a/Sources/libMultiMarkdown/latex.c
+++ b/Sources/libMultiMarkdown/latex.c
@@ -1707,22 +1707,35 @@ void mmd_export_token_tree_latex_tt(DString * out, const char * source, token *
 	}
 }
 
+int clean_text_sort(fn_holder * a, fn_holder * b) {
+	return strcmp(a->note->clean_text, b->note->clean_text);
+}
+
+
 
 void mmd_define_glossaries_latex(DString * out, const char * source, scratch_pad * scratch) {
 	// Iterate through glossary definitions
 	fn_holder * f, * f_tmp;
 
+	// Sort glossary entries
+	HASH_SORT(scratch->glossary_hash, clean_text_sort);
+
+	char * last_key = NULL;
+
 	HASH_ITER(hh, scratch->glossary_hash, f, f_tmp) {
-		// Add this glossary definition
-		print_const("\\longnewglossaryentry{");
-		print(f->note->clean_text);
+		if (!last_key || strcmp(last_key, f->note->clean_text) != 0) {
+			// Add this glossary definition
+			print_const("\\longnewglossaryentry{");
+			print(f->note->clean_text);
 
-		print_const("}{name=");
-		print(f->note->clean_text);
-		print_const("}{");
+			print_const("}{name=");
+			print(f->note->clean_text);
+			print_const("}{");
 
-		mmd_export_token_tree_latex(out, source, f->note->content, scratch);
-		print_const("}\n\n");
+			mmd_export_token_tree_latex(out, source, f->note->content, scratch);
+			print_const("}\n\n");
+		}
+		last_key = f->note->clean_text;
 	}
 
 	// And abbreviations
diff --git a/tests/MMD6Tests/Glossaries.tex b/tests/MMD6Tests/Glossaries.tex
index f88fb73..1e8c9c0 100644
--- a/tests/MMD6Tests/Glossaries.tex
+++ b/tests/MMD6Tests/Glossaries.tex
@@ -1,42 +1,42 @@
 \input{mmd6-article-leader}
 \def\mytitle{Glossaries}
-\longnewglossaryentry{foo}{name=foo}{FOO}
+\longnewglossaryentry{b a r}{name=b a r}{B A R}
 
-\longnewglossaryentry{f.o.o.}{name=f.o.o.}{
-
-F.O.O.}
-
-\longnewglossaryentry{f-o-o}{name=f-o-o}{
+\longnewglossaryentry{b-a-r}{name=b-a-r}{
 
-F--O--O}
+B--A--R}
 
-\longnewglossaryentry{f o o}{name=f o o}{
+\longnewglossaryentry{b.a.r.}{name=b.a.r.}{
 
-F O O}
+B.A.R.}
 
-\longnewglossaryentry{fo'o}{name=fo'o}{
+\longnewglossaryentry{ba'r}{name=ba'r}{
 
-FO'O}
+BA'R}
 
 \longnewglossaryentry{bar}{name=bar}{
 
 BAR}
 
-\longnewglossaryentry{b.a.r.}{name=b.a.r.}{
+\longnewglossaryentry{f o o}{name=f o o}{
 
-B.A.R.}
+F O O}
 
-\longnewglossaryentry{b-a-r}{name=b-a-r}{
+\longnewglossaryentry{f-o-o}{name=f-o-o}{
 
-B--A--R}
+F--O--O}
 
-\longnewglossaryentry{b a r}{name=b a r}{
+\longnewglossaryentry{f.o.o.}{name=f.o.o.}{
 
-B A R}
+F.O.O.}
 
-\longnewglossaryentry{ba'r}{name=ba'r}{
+\longnewglossaryentry{fo'o}{name=fo'o}{
 
-BA'R}
+FO'O}
+
+\longnewglossaryentry{foo}{name=foo}{
+
+FOO}
 
 \longnewglossaryentry{foo bar}{name=foo bar}{
 
-- 
2.50.1