From 465281a1633cf6c631bf9ea7e3e5b3032d0b05ea Mon Sep 17 00:00:00 2001
From: Matteo Bini <matteobin@tiepi.it>
Date: Fri, 16 Aug 2024 19:23:19 +0200
Subject: [PATCH] figcaption tag

---
 srohtml.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 53 insertions(+), 10 deletions(-)

diff --git a/srohtml.c b/srohtml.c
index 79c56c8..6a1b165 100644
--- a/srohtml.c
+++ b/srohtml.c
@@ -9,6 +9,7 @@
 #define CLS_MAX 16
 #define DATE_LEN 10
 #define FAVICON "data:image/gif;base64,R0lGODlhEAAQAKEAAAAAcP///wAAcAAAcCH5BAEKAAIALAAAAAAQABAAQAIwlBWZxxwAQWjtTQRvlZhTnGSfYT3eZ3WaE4mjGa1UasoH7c6tzYanfqmhJMKXglcAADs="
+#define FIGCAPTION_TAG_LEN 12
 #define INDEX_START 16
 #define LANG_LEN 2
 #define LINE_MAX 1000
@@ -111,9 +112,10 @@ static int string_putc(string *dst, const char c);
 char *author = NULL;
 string body;
 char *description = NULL;
+int figcaption_presence = 0;
 string head;
 size_t heading_position = 0;
-int imgs_presence = 0;
+int img_presence = 0;
 int indentation = 2;
 char *index_heading = NULL;
 char *index_heading_id = NULL;
@@ -318,9 +320,29 @@ cmd_br(void)
 void
 cmd_close(void)
 {
+	char *ind, *line;
 	index_title *title;
+	size_t len;
 
-	title = NULL;
+	ind    = NULL;
+	len    = 0;
+	line   = NULL;
+	title  = NULL;
+
+	if (!strcmp(tag_closure, "</figure>")) {
+		len = strlen(body.str);
+		if (len >= FIGCAPTION_TAG_LEN + indentation)
+			line = body.str + len - FIGCAPTION_TAG_LEN;
+		if (line != NULL && !strcmp(line, "<figcaption>")) {
+			*(line - indentation) = '\0';
+		} else {
+			figcaption_presence = 1;
+			string_cat(&body, "</figcaption>\n");
+		}
+		indent_str(&ind, --indentation);
+		string_cat(&body, ind);
+		free(ind);
+	}
 
 	if ((!strcmp(tag_closure, "</h3>") ||
 	     !strcmp(tag_closure, "</h4>") ||
@@ -404,10 +426,18 @@ cmd_fi(const char *line)
 	indent_str(&ind, indentation);
 
 	string_cat(&body, ind);
-	string_cat(&body, "<figure><img src=\"");
+	string_cat(&body, "<figure>\n");
+	indent_str(&ind, ++indentation);
+	string_cat(&body, ind);
+	string_cat(&body, "<img src=\"");
 	string_cat(&body, src);
-	string_cat(&body, "\" alt=\"\"></figure>");
-	imgs_presence = 1;
+	string_cat(&body, "\" alt=\"\">\n");
+	img_presence = 1;
+
+	string_cat(&body, ind);
+	string_cat(&body, "<figcaption>");
+
+	strcpy(tag_closure, "</figure>");
 
 	free(ind);
 	free(src);
@@ -898,7 +928,11 @@ indent_str(char **str, const int ind)
 {
 	int i;
 
-	*str = safe_malloc(sizeof(char) * (ind + 1));
+	if (*str == NULL || strlen(*str) <= ind) {
+		free(*str);
+		*str = safe_malloc(sizeof(char) * (ind + 1));
+	}
+
 	for (i = 0; i < ind; i++)
 		(*str)[i] = '\t';
 	(*str)[ind] = '\0';
@@ -1160,9 +1194,10 @@ page_head(void)
 "			p"
 	);
 	if (index_position)
-		string_cat(&head, ",\n\t\t\tli {");
-	else
-		string_cat(&head, " {");
+		string_cat(&head, ",\n\t\t\tli");
+	if (figcaption_presence)
+		string_cat(&head, ",\n\t\t\tfigcaption");
+	string_cat(&head, " {");
 	string_cat(&head, "\n" \
 "				line-height: 1.5;\n" \
 "			}\n" \
@@ -1173,7 +1208,7 @@ page_head(void)
 "			}\n"
 	);
 
-	if (imgs_presence) {
+	if (img_presence) {
 		string_cat(&head, "\n" \
 "			figure {\n" \
 "				margin-left: 0;\n" \
@@ -1188,6 +1223,14 @@ page_head(void)
 		);
 	}
 
+	if (figcaption_presence) {
+		string_cat(&head, "\n" \
+"			figcaption {\n" \
+"				font-style: italic;\n" \
+"			}\n" \
+		);
+	}
+
 	if (licence_container) {
 		string_cat(&head, "\n" \
 "			.contenitore-licenza {\n" \