From 86de41d87cc78feee9c4f4cdb22af1d72bcf4339 Mon Sep 17 00:00:00 2001
From: Matteo Bini <matteobin@tiepi.it>
Date: Tue, 23 Jul 2024 13:05:22 +0200
Subject: [PATCH] br, em and i tags. Partial img/figure support

---
 srohtml.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)

diff --git a/srohtml.c b/srohtml.c
index 698ad44..b68839a 100644
--- a/srohtml.c
+++ b/srohtml.c
@@ -38,9 +38,13 @@ static void cmd(char *line);
 static void cmd_close(void);
 static void cmd_a(const char *line);
 static void cmd_au_de_ti(char **str, const char *line);
+static void cmd_br(void);
 static void cmd_dt(const char *line);
+static void cmd_em(const char *line);
+static void cmd_fi(const char *line);
 static void cmd_h(const char *line);
 static void cmd_hr(void);
+static void cmd_i(const char *line);
 static void cmd_la(const char *line);
 static void cmd_le(void);
 static void cmd_ls(void);
@@ -68,6 +72,7 @@ static void string_enlarge(string *old, const size_t size);
 static int string_putc(string *dst, const char c);
 
 /* variables */
+int imgs_presence = 0;
 char *author = NULL;
 char closure[CLS_MAX]; 
 char *description = NULL;
@@ -116,10 +121,16 @@ cmd(char *line)
 		cmd_a(line);
 	else if (!strncmp(line, "AU", cmdlen))
 		cmd_au_de_ti(&author, line);
+	else if (!strncmp(line, "BR", cmdlen))
+		cmd_br();
 	else if (!strncmp(line, "DE", cmdlen))
 		cmd_au_de_ti(&description, line);
 	else if (!strncmp(line, "DT", cmdlen))
 		cmd_dt(line);
+	else if (!strncmp(line, "EM", cmdlen))
+		cmd_em(line);
+	else if (!strncmp(line, "FI", cmdlen))
+		cmd_fi(line);
 	else if (!strncmp(line, "H1", cmdlen))
 		cmd_h(line);
 	else if (!strncmp(line, "H2", cmdlen))
@@ -134,6 +145,8 @@ cmd(char *line)
 		cmd_h(line);
 	else if (!strncmp(line, "HR", cmdlen))
 		cmd_hr();
+	else if (!strncmp(line, "I", cmdlen))
+		cmd_i(line);
 	else if (!strncmp(line, "LA", cmdlen))
 		cmd_la(line);
 	else if (!strncmp(line, "LE", cmdlen))
@@ -214,6 +227,13 @@ cmd_au_de_ti(char **str, const char *line)
 	strcpy(*str, line);
 }
 
+void
+cmd_br(void)
+{
+	string_cat(&body, "<br>");
+	space = 0;
+}
+
 void
 cmd_close(void)
 {
@@ -252,6 +272,46 @@ cmd_dt(const char *line)
 	free(in);
 }
 
+void
+cmd_em(const char *line)
+{
+	/* move past "EM" */
+	line += 2;
+	/* move past ' ', if present */
+	if (line[0] == ' ')
+		line++;
+
+	if (space)
+		string_cat(&body, " ");
+	string_cat(&body, "<em>");
+	string_cat(&body, line);
+	string_cat(&body, "</em>");
+}
+
+void
+cmd_fi(const char *line)
+{
+	char *ind, *src;
+
+	ind = NULL;
+	src = NULL;
+
+	/* move past "FI" */
+	line += 2;
+	/* move past argument, once found it */
+	line += stread_param(line, &src);
+
+	indent_str(&ind);
+
+	string_cat(&body, ind);
+	string_cat(&body, "<figure><img src=\"");
+	string_cat(&body, src);
+	string_cat(&body, "\" alt=\"\"></figure>");
+	imgs_presence = 1;
+
+	free(src);
+}
+
 void
 cmd_h(const char *line)
 {
@@ -275,6 +335,22 @@ cmd_hr(void)
 	string_cat(&body, "\t\t<hr>");
 }
 
+void
+cmd_i(const char *line)
+{
+	/* move past "I" */
+	line += 1;
+	/* move past ' ', if present */
+	if (line[0] == ' ')
+		line++;
+
+	if (space)
+		string_cat(&body, " ");
+	string_cat(&body, "<i>");
+	string_cat(&body, line);
+	string_cat(&body, "</i>");
+}
+
 void
 cmd_la(const char *line)
 {
@@ -379,6 +455,7 @@ cmd_p(void)
 	ind = NULL;
 
 	indent_str(&ind);
+
 	string_cat(&body, ind);
 	string_cat(&body, "<p>");
 	strcpy(closure, "</p>");
@@ -797,6 +874,21 @@ page_head(void)
 "			}\n"
 	);
 
+	if (imgs_presence) {
+		string_cat(&head, "\n" \
+"			figure {\n" \
+"				margin-left: 0;\n" \
+"				margin-right: 0;\n" \
+"				text-align: center;\n" \
+"			}\n" \
+"\n" \
+"			img {\n" \
+"				max-width: 100%;\n" \
+"				width: 7em;\n" \
+"			}\n"
+		);
+	}
+
 	if (licence_container) {
 		string_cat(&head, "\n" \
 "			.contenitore-licenza {\n" \