ext/redcarpet/markdown.c in redcarpet-2.3.0 vs ext/redcarpet/markdown.c in redcarpet-3.0.0

@@ -63,10 +63,11 @@
 typedef size_t
 (*char_trigger)(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
 
 static size_t char_emphasis(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
 static size_t char_underline(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
+static size_t char_highlight(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
 static size_t char_linebreak(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
 static size_t char_codespan(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
 static size_t char_escape(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
 static size_t char_entity(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
 static size_t char_langle_tag(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t offset, size_t size);
@@ -393,11 +394,11 @@
 find_emph_char(uint8_t *data, size_t size, uint8_t c)
 {
 	size_t i = 1;
 
 	while (i < size) {
-		while (i < size && data[i] != c && data[i] != '`' && data[i] != '[')
+		while (i < size && data[i] != c && data[i] != '[')
 			i++;
 
 		if (i == size)
 			return 0;
 
@@ -537,10 +538,12 @@
 			work = rndr_newbuf(rndr, BUFFER_SPAN);
 			parse_inline(work, rndr, data, i);
 
 			if (c == '~')
 				r = rndr->cb.strikethrough(ob, work, rndr->opaque);
+			else if (c == '=')
+				r = rndr->cb.highlight(ob, work, rndr->opaque);
 			else
 				r = rndr->cb.double_emphasis(ob, work, rndr->opaque);
 
 			rndr_popbuf(rndr, BUFFER_SPAN);
 			return r ? i + 2 : 0;
@@ -598,18 +601,18 @@
 {
 	uint8_t c = data[0];
 	size_t ret;
 
 	if (rndr->ext_flags & MKDEXT_NO_INTRA_EMPHASIS) {
-		if (offset > 0 && !_isspace(data[-1]) && data[-1] != '>')
+		if (offset > 0 && !_isspace(data[-1]) && data[-1] != '>' && data[-1] != '(')
 			return 0;
 	}
 
 	if (size > 2 && data[1] != c) {
 		/* whitespace cannot follow an opening emphasis;
 		 * strikethrough only takes two characters '~~' */
-		if (c == '~' || _isspace(data[1]) || (ret = parse_emph1(ob, rndr, data + 1, size - 1, c)) == 0)
+		if (c == '~' || c == '=' || _isspace(data[1]) || (ret = parse_emph1(ob, rndr, data + 1, size - 1, c)) == 0)
 			return 0;
 
 		return ret + 1;
 	}
 
@@ -619,11 +622,11 @@
 
 		return ret + 2;
 	}
 
 	if (size > 4 && data[1] == c && data[2] == c && data[3] != c) {
-		if (c == '~' || _isspace(data[3]) || (ret = parse_emph3(ob, rndr, data + 3, size - 3, c)) == 0)
+		if (c == '~' || c == '=' || _isspace(data[3]) || (ret = parse_emph3(ob, rndr, data + 3, size - 3, c)) == 0)
 			return 0;
 
 		return ret + 3;
 	}
 
@@ -896,14 +899,22 @@
 			i++;
 
 		link_b = i;
 
 		/* looking for link end: ' " ) */
+		/* Count the number of open parenthesis */
+		size_t nb_p = 0;
+
 		while (i < size) {
 			if (data[i] == '\\') i += 2;
-			else if (data[i] == ')') break;
-			else if (i >= 1 && _isspace(data[i-1]) && (data[i] == '\'' || data[i] == '"')) break;
+			else if (data[i] == '(' && i != 0) {
+				nb_p++; i++;
+			}
+			else if (data[i] == ')') {
+				if (nb_p == 0) break;
+				else nb_p--; i++;
+			} else if (i >= 1 && _isspace(data[i-1]) && (data[i] == '\'' || data[i] == '"')) break;
 			else i++;
 		}
 
 		if (i >= size) goto cleanup;
 		link_e = i;
@@ -2421,10 +2432,12 @@
 	if (md->cb.emphasis || md->cb.double_emphasis || md->cb.triple_emphasis) {
 		md->active_char['*'] = MD_CHAR_EMPHASIS;
 		md->active_char['_'] = MD_CHAR_EMPHASIS;
 		if (extensions & MKDEXT_STRIKETHROUGH)
 			md->active_char['~'] = MD_CHAR_EMPHASIS;
+		if (extensions & MKDEXT_HIGHLIGHT)
+			md->active_char['='] = MD_CHAR_EMPHASIS;
 	}
 
 	if (md->cb.codespan)
 		md->active_char['`'] = MD_CHAR_CODESPAN;
 
@@ -2553,7 +2566,5 @@
 {
 	*ver_major = SUNDOWN_VER_MAJOR;
 	*ver_minor = SUNDOWN_VER_MINOR;
 	*ver_revision = SUNDOWN_VER_REVISION;
 }
-
-/* vim: set filetype=c: */