Added gmi2html

3 files changed, 208 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index 67bf6e5..be44af2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 *.html
 *.xml
 favicon.ico
+gmi2html
 
 !header.html
 !footer.html
diff --git a/Makefile b/Makefile
index facda02..5753b5f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
+GEMTEXT=$(shell find -L site -type f -name "*.gmi" -print)
 MARKDOWN=$(shell find -L site -type f -name "*.md" -print)
 HTML=$(MARKDOWN:%.md=%.html)
 RSS=$(shell find -L . -type d -name "*.rss" -print)
@@ -30,8 +31,23 @@ all: $(HTML) $(RSS_XML)
 	done
 	cat rss_footer.xml >> $@
 
+%.html: %.gmi header.html footer.html gmi2html
+	@echo "GMI2HTML $@"
+	cp header.html $@
+	./gmi2html < $< > help.txt
+	./gmi2html < $< | sed -e 's/\.md/\.html/g ; /^<h2>.*/i </div><div class="content">' >> $@
+	echo "</div>" >> $@
+	echo "<br />" >> $@
+	lsand -H | tail -n +2 >> $@
+	cat footer.html >> $@
+
+gmi2html: gmi2html.c
+	@echo "CC $@"
+	$(CC) $(CFLAGS) $^ -o $@
+
 .PHONY: clean
 clean:
+	rm -f gmi2html
 	rm -f ${HTML}
 	rm -f ${RSS_XML}
 
diff --git a/gmi2html.c b/gmi2html.c
new file mode 100644
index 0000000..5708339
--- /dev/null
+++ b/gmi2html.c
@@ -0,0 +1,191 @@
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static char *lstrip(char *restrict s) {
+	size_t i;
+	for(i = 0; s[i] != '\0'; i++) {
+		if(!isspace(s[i])) {
+			return &s[i];
+		}
+	}
+	return &s[i];
+}
+
+static char *rstrip(char *restrict s) {
+	char *last_nonspace = s;
+	for(size_t i = 0; s[i] != '\0'; i++) {
+		if(!isspace(s[i])) {
+			last_nonspace = &s[i];
+		}
+	}
+	if(last_nonspace[0] != '\0') {
+		last_nonspace[1] = '\0';
+	}
+	return s;
+}
+
+static char *strip(char *restrict s) {
+	return rstrip(lstrip(s));
+}
+
+static void print_sanitized(const char *restrict s) {
+	size_t len = strlen(s);
+	for(size_t i = 0; i < len; i++) {
+		if(s[i] == '<') {
+			printf("&lt;");
+		}
+		else if(s[i] == '>') {
+			printf("&gt;");
+		}
+		else if(s[i] == '&') {
+			printf("&amp;");
+		}
+		else if(s[i] == '"') {
+			printf("&quot;");
+		}
+		else {
+			printf("%c", s[i]);
+		}
+	}
+}
+
+int main(int argc, char **argv) {
+	int list_mode = 0, preformat_mode = 0;
+	
+	// Read lines
+	char *line = NULL;
+	size_t line_buf_len = 0;
+	ssize_t line_len;
+	while((line_len = getline(&line, &line_buf_len, stdin)) != -1) {
+		line[line_len - 1] = '\0';
+		line_len--;
+		
+		// Disable list mode
+		if(list_mode && (line[0] != '*' || line[1] != ' ')) {
+			list_mode = 0;
+			printf("</ul>\n");
+		}
+		
+		// Preformatted mode
+		if(preformat_mode) {
+			if(line_len == 3 && line[0] == '`' && line[1] == '`' && line[2] == '`') {
+				preformat_mode = 0;
+				printf("</pre>\n");
+			}
+			else {
+				print_sanitized(line);
+				printf("\n");
+			}
+			goto loopend;
+		}
+		
+		// Blank lines
+		if(line[0] == '\0') {
+			printf("<br />\n");
+		}
+		
+		// Links
+		else if(line_len >= 2 && line[0] == '=' && line[1] == '>') {
+			
+			// Discard leading whitespace
+			char *url = lstrip(&line[2]);
+			
+			// Get label
+			char *label = NULL;
+			for(size_t i = 0; url[i] != '\0'; i++) {
+				if(isspace(url[i])) {
+					url[i] = '\0';
+					label = &url[i + 1];
+					break;
+				}
+			}
+			
+			// Print link
+			if(label == NULL) {
+				label = url;
+			}
+			else {
+				label = strip(label);
+			}
+			printf("<a href=\"");
+			print_sanitized(url);
+			printf("\">");
+			print_sanitized(label);
+			printf("</a><br />\n");
+		}
+		
+		// Headings
+		else if(line[0] == '#') {
+			unsigned int header_count = 1;
+			if(line_len >= 2 && line[1] == '#') {
+				header_count++;
+				if(line_len >= 3 && line[2] == '#') {
+					header_count++;
+				}
+			}
+			printf("<h%d>", header_count);
+			print_sanitized(strip(line + header_count));
+			printf("</h%d>\n", header_count);
+		}
+		
+		// Lists
+		else if(line_len >= 2 && line[0] == '*' && line[1] == ' ') {
+			if(!list_mode) {
+				list_mode = 1;
+				printf("<ul>\n");
+			}
+			printf("<li>");
+			print_sanitized(strip(line + 2));
+			printf("</li>\n");
+		}
+		
+		// Blockquotes
+		else if(line[0] == '>') {
+			printf("<q>");
+			print_sanitized(strip(line + 1));
+			printf("</q>\n");
+		}
+		
+		// Preformatted text
+		else if(line_len >= 3 && line[0] == '`' && line[1] == '`' && line[2] == '`') {
+			preformat_mode = 1;
+			printf("<pre>\n");
+		}
+		
+		// Regular text
+		else {
+			printf("<p>");
+			print_sanitized(strip(line));
+			printf("</p>\n");
+		}
+		
+		loopend:
+		free(line);
+		line = NULL;
+		line_buf_len = 0;
+	}
+	free(line);
+	
+	// Disable list mode
+	if(list_mode) {
+		list_mode = 0;
+		printf("</ul>\n");
+	}
+	
+	// Preformatted mode
+	if(preformat_mode) {
+		preformat_mode = 0;
+		printf("</pre>\n");
+	}
+	
+	// Return
+	if(feof(stdin)) {
+		return EXIT_SUCCESS;
+	}
+	else {
+		return EXIT_FAILURE;
+	}
+}
+