astyle reformatting.
diff --git a/src/blocks.c b/src/blocks.c
index aac9a2a..f8b7495 100644
--- a/src/blocks.c
+++ b/src/blocks.c
@@ -742,9 +742,9 @@
 				break;
 			default:
 				fprintf(stderr,
-					"Error (%s:%d): Unknown HTML block type %d\n",
-					__FILE__, __LINE__,
-					container->as.html_block_type);
+				        "Error (%s:%d): Unknown HTML block type %d\n",
+				        __FILE__, __LINE__,
+				        container->as.html_block_type);
 				exit(1);
 			}
 
@@ -812,9 +812,9 @@
 			S_advance_offset(parser, &input, parser->first_nonspace + matched - parser->offset, false);
 
 		} else if (!indented &&
-			   ((matched = scan_html_block_start(&input, parser->first_nonspace)) ||
-			    (container->type != NODE_PARAGRAPH &&
-			     (matched = scan_html_block_start_7(&input, parser->first_nonspace))))) {
+		           ((matched = scan_html_block_start(&input, parser->first_nonspace)) ||
+		            (container->type != NODE_PARAGRAPH &&
+		             (matched = scan_html_block_start_7(&input, parser->first_nonspace))))) {
 
 			container = add_child(parser, container, NODE_HTML, parser->first_nonspace + 1);
 			container->as.html_block_type = matched;
@@ -962,27 +962,27 @@
 			case 1:
 				// </script>, </style>, </pre>
 				matches_end_condition =
-					scan_html_block_end_1(&input, parser->first_nonspace);
+				    scan_html_block_end_1(&input, parser->first_nonspace);
 				break;
 			case 2:
 				// -->
 				matches_end_condition =
-					scan_html_block_end_2(&input, parser->first_nonspace);
+				    scan_html_block_end_2(&input, parser->first_nonspace);
 				break;
 			case 3:
 				// ?>
 				matches_end_condition =
-					scan_html_block_end_3(&input, parser->first_nonspace);
+				    scan_html_block_end_3(&input, parser->first_nonspace);
 				break;
 			case 4:
 				// >
 				matches_end_condition =
-					scan_html_block_end_4(&input, parser->first_nonspace);
+				    scan_html_block_end_4(&input, parser->first_nonspace);
 				break;
 			case 5:
 				// ]]>
 				matches_end_condition =
-					scan_html_block_end_5(&input, parser->first_nonspace);
+				    scan_html_block_end_5(&input, parser->first_nonspace);
 				break;
 			default:
 				matches_end_condition = 0;
diff --git a/src/commonmark.c b/src/commonmark.c
index 60565d2..0f4c2bc 100644
--- a/src/commonmark.c
+++ b/src/commonmark.c
@@ -21,28 +21,28 @@
 // Functions to convert cmark_nodes to commonmark strings.
 
 static inline void outc(cmark_renderer *renderer,
-			cmark_escaping escape,
-			int32_t c,
-			unsigned char nextc)
+                        cmark_escaping escape,
+                        int32_t c,
+                        unsigned char nextc)
 {
 	bool needs_escaping = false;
 	needs_escaping =
-		escape != LITERAL &&
-		((escape == NORMAL &&
-		  (c == '*' || c == '_' || c == '[' || c == ']' || c == '#' ||
-		   c == '<' || c == '>' || c == '\\' || c == '`' || c == '!' ||
-		   (c == '&' && isalpha(nextc)) ||
-		   (c == '!' && nextc == '[') ||
-		   (renderer->begin_line &&
-		    (c == '-' || c == '+' || c == '=')) ||
-		   ((c == '.' || c == ')') &&
-		    isdigit(renderer->buffer->ptr[renderer->buffer->size - 1])))) ||
-		 (escape == URL &&
-		  (c == '`' || c == '<' || c == '>' || isspace(c) ||
-		        c == '\\' || c == ')' || c == '(')) ||
-		 (escape == TITLE &&
-		  (c == '`' || c == '<' || c == '>' || c == '"' ||
-		        c == '\\')));
+	    escape != LITERAL &&
+	    ((escape == NORMAL &&
+	      (c == '*' || c == '_' || c == '[' || c == ']' || c == '#' ||
+	       c == '<' || c == '>' || c == '\\' || c == '`' || c == '!' ||
+	       (c == '&' && isalpha(nextc)) ||
+	       (c == '!' && nextc == '[') ||
+	       (renderer->begin_line &&
+	        (c == '-' || c == '+' || c == '=')) ||
+	       ((c == '.' || c == ')') &&
+	        isdigit(renderer->buffer->ptr[renderer->buffer->size - 1])))) ||
+	     (escape == URL &&
+	      (c == '`' || c == '<' || c == '>' || isspace(c) ||
+	       c == '\\' || c == ')' || c == '(')) ||
+	     (escape == TITLE &&
+	      (c == '`' || c == '<' || c == '>' || c == '"' ||
+	       c == '\\')));
 
 	if (needs_escaping) {
 		if (isspace(c)) {
@@ -159,9 +159,9 @@
 
 static int
 S_render_node(cmark_renderer *renderer,
-	      cmark_node *node,
-	      cmark_event_type ev_type,
-	      int options)
+              cmark_node *node,
+              cmark_event_type ev_type,
+              int options)
 {
 	cmark_node *tmp;
 	int list_number;
diff --git a/src/html.c b/src/html.c
index 48a80d6..c6bbea6 100644
--- a/src/html.c
+++ b/src/html.c
@@ -179,7 +179,7 @@
 			cmark_strbuf_puts(html, "<!-- raw HTML omitted -->");
 		} else {
 			cmark_strbuf_put(html, node->as.literal.data,
-					 node->as.literal.len);
+			                 node->as.literal.len);
 		}
 		cr(html);
 		break;
@@ -239,7 +239,7 @@
 			cmark_strbuf_puts(html, "<!-- raw HTML omitted -->");
 		} else {
 			cmark_strbuf_put(html, node->as.literal.data,
-					 node->as.literal.len);
+			                 node->as.literal.len);
 		}
 		break;
 
@@ -265,15 +265,15 @@
 			if (!((options & CMARK_OPT_SAFE) &&
 			      scan_dangerous_url(&node->as.link.url, 0))) {
 				houdini_escape_href(html,
-						    node->as.link.url.data,
-						    node->as.link.url.len);
+				                    node->as.link.url.data,
+				                    node->as.link.url.len);
 
 			}
 			if (node->as.link.title.len) {
 				cmark_strbuf_puts(html, "\" title=\"");
 				escape_html(html,
-					    node->as.link.title.data,
-					    node->as.link.title.len);
+				            node->as.link.title.data,
+				            node->as.link.title.len);
 			}
 			cmark_strbuf_puts(html, "\">");
 		} else {
@@ -287,8 +287,8 @@
 			if (!((options & CMARK_OPT_SAFE) &&
 			      scan_dangerous_url(&node->as.link.url, 0))) {
 				houdini_escape_href(html,
-						    node->as.link.url.data,
-						    node->as.link.url.len);
+				                    node->as.link.url.data,
+				                    node->as.link.url.len);
 
 			}
 			cmark_strbuf_puts(html, "\" alt=\"");
diff --git a/src/latex.c b/src/latex.c
index 34dffc7..782b0c0 100644
--- a/src/latex.c
+++ b/src/latex.c
@@ -19,9 +19,9 @@
 #define BLANKLINE() renderer->blankline(renderer)
 
 static inline void outc(cmark_renderer *renderer,
-			cmark_escaping escape,
-			int32_t c,
-			unsigned char nextc)
+                        cmark_escaping escape,
+                        int32_t c,
+                        unsigned char nextc)
 {
 	if (escape == LITERAL) {
 		cmark_render_code_point(renderer, c);
@@ -220,9 +220,9 @@
 
 static int
 S_render_node(cmark_renderer *renderer,
-	      cmark_node *node,
-	      cmark_event_type ev_type,
-	      int options)
+              cmark_node *node,
+              cmark_event_type ev_type,
+              int options)
 {
 	int list_number;
 	char list_number_string[20];
@@ -260,7 +260,7 @@
 			list_number = cmark_node_get_list_start(node);
 			if (list_number > 1) {
 				sprintf(list_number_string,
-				         "%d", list_number);
+				        "%d", list_number);
 				LIT("\\setcounter{enum");
 				LIT((char *)roman_numerals[S_get_enumlevel(node)]);
 				LIT("}{");
diff --git a/src/man.c b/src/man.c
index 4a49441..6ff33f5 100644
--- a/src/man.c
+++ b/src/man.c
@@ -18,9 +18,9 @@
 // Functions to convert cmark_nodes to groff man strings.
 static
 void S_outc(cmark_renderer *renderer,
-	    cmark_escaping escape,
-	    int32_t c,
-	    unsigned char nextc)
+            cmark_escaping escape,
+            int32_t c,
+            unsigned char nextc)
 {
 	(void)(nextc);
 
@@ -75,8 +75,8 @@
 
 static int
 S_render_node(cmark_renderer *renderer,
-	      cmark_node *node,
-	      cmark_event_type ev_type,
+              cmark_node *node,
+              cmark_event_type ev_type,
               int options)
 {
 	cmark_node *tmp;
@@ -133,7 +133,7 @@
 		if (entering) {
 			CR();
 			LIT(cmark_node_get_header_level(node) == 1 ?
-			                  ".SH" : ".SS");
+			    ".SH" : ".SS");
 			CR();
 		} else {
 			CR();
diff --git a/src/render.c b/src/render.c
index ab53558..2f1faac 100644
--- a/src/render.c
+++ b/src/render.c
@@ -23,9 +23,9 @@
 
 static
 void S_out(cmark_renderer *renderer,
-	   const char *source,
-	   bool wrap,
-	   cmark_escaping escape)
+           const char *source,
+           bool wrap,
+           cmark_escaping escape)
 {
 	int length = cmark_strbuf_safe_strlen(source);
 	unsigned char nextc;
@@ -74,7 +74,7 @@
 				renderer->column += 1;
 				renderer->begin_line = false;
 				renderer->last_breakable = renderer->buffer->size -
-				                        1;
+				                           1;
 				// skip following spaces
 				while (source[i + 1] == ' ') {
 					i++;
@@ -138,16 +138,16 @@
 
 char*
 cmark_render(cmark_node *root,
-	     int options,
-	     int width,
-	     void (*outc)(cmark_renderer*,
-			  cmark_escaping,
-			  int32_t,
-			  unsigned char),
-	     int (*render_node)(cmark_renderer *renderer,
-				cmark_node *node,
-				cmark_event_type ev_type,
-				int options))
+             int options,
+             int width,
+             void (*outc)(cmark_renderer*,
+                          cmark_escaping,
+                          int32_t,
+                          unsigned char),
+             int (*render_node)(cmark_renderer *renderer,
+                                cmark_node *node,
+                                cmark_event_type ev_type,
+                                int options))
 {
 	cmark_strbuf pref = GH_BUF_INIT;
 	cmark_strbuf buf = GH_BUF_INIT;
@@ -157,8 +157,9 @@
 	cmark_iter *iter = cmark_iter_new(root);
 
 	cmark_renderer renderer = { &buf, &pref, 0, width,
-				    0, 0, true, false, false,
-	                            outc, S_cr, S_blankline, S_out };
+	                            0, 0, true, false, false,
+	                            outc, S_cr, S_blankline, S_out
+	                          };
 
 	while ((ev_type = cmark_iter_next(iter)) != CMARK_EVENT_DONE) {
 		cur = cmark_iter_get_node(iter);