shithub: riscv

Info  •  Files  •  Log  •  Branches

page: experimental epub support

--- a/sys/src/cmd/page.c

+++ b/sys/src/cmd/page.c

@@ -167,7 +167,7 @@

 void

 pipeline(int fd, char *fmt, ...)

 {

-	char buf[128], *argv[4];

+	char buf[NPATH], *argv[4];

 	va_list arg;

 	int pfd[2];

@@ -205,6 +205,16 @@

 	close(pfd[0]);

 }

+char*

+shortname(char *s)

+{

+	char *x;

+	if(x = strrchr(s, '/'))

+		if(x[1] != 0)

+			return x+1;

+	return s;

+}

+

 int

 popenfile(Page*);

@@ -270,7 +280,53 @@

 	return p->open(p);

 }

+int

+popenepub(Page *p)

+{

+	char buf[NPATH], *s, *e;

+	int n, fd;

+	fd = p->fd;

+	p->fd = -1;

+	s = buf;

+	e = buf+sizeof(buf)-1;

+	s += snprint(s, e-s, "%s/", (char*)p->data);

+	free(p->data);

+	p->data = nil;

+	pipeline(fd, "awk '/\\<rootfile/{"

+		"if(match($0, /full\\-path\\=\\\"([^\\\"]+)\\\"/)){"

+		"print substr($0, RSTART+11,RLENGTH-12);exit}}'");

+	n = read(fd, s, e - s);

+	close(fd);

+	if(n <= 0)

+		return -1;

+	while(n > 0 && s[n-1] == '\n')

+		n--;

+	s += n;

+	*s = 0;

+	if((fd = open(buf, OREAD)) < 0)

+		return -1;

+	pipeline(fd, "awk '/\\<item/{"

+		"if(match($0, /id\\=\\\"([^\\\"]+)\\\"/)){"

+		"id=substr($0, RSTART+4, RLENGTH-5);"

+		"if(match($0, /href\\=\\\"([^\\\"]+)\\\"/)){"

+		"item[id]=substr($0, RSTART+6, RLENGTH-7)}}};"

+		"/\\<itemref/{"

+		"if(match($0, /idref\\=\\\"([^\\\"]+)\\\"/)){"

+		"ref=substr($0, RSTART+7, RLENGTH-8);"

+		"print item[ref]; fflush}}'");

+	s = strrchr(buf, '/')+1;

+	while((n = read(fd, s, e-s)) > 0){

+		while(n > 0 && s[n-1] == '\n')

+			n--;

+		s[n] = 0;

+		addpage(p, shortname(buf), popenfile, strdup(buf), -1);

+	}

+	close(fd);

+	return -1;

+}

+

+

 typedef struct Ghost Ghost;

 struct Ghost

 {

@@ -534,6 +590,15 @@

 	if(d->mode & DMDIR){

 		free(d);

 		d = nil;

+

+		snprint(buf, sizeof(buf), "%s/META-INF/container.xml", file);

+		if((tfd = open(buf, OREAD)) >= 0){

+			close(fd);

+			p->fd = tfd;

+			p->open = popenepub;

+			return p->open(p);

+		}

+

 		if((n = dirreadall(fd, &d)) < 0)

 			goto Err1;

 		qsort(d, n, sizeof d[0], dircmp);

@@ -558,6 +623,10 @@

 		p->data = "lp -dstdout";

 		p->open = popengs;

 	}

+	else if(memcmp(buf, "<?xml", 5) == 0){

+		p->data = "htmlfmt -c utf8 | lp -dstdout";

+		p->open = popengs;

+	}

 	else if(memcmp(buf, "\xF7\x02\x01\x83\x92\xC0\x1C;", 8) == 0){

 		p->data = "dvips -Pps -r0 -q1 -f1";

 		p->open = popengs;

@@ -573,8 +642,7 @@

 	else if(memcmp(buf, "PK\x03\x04", 4) == 0){

 		p->data = "fs/zipfs";

 		p->open = popentape;

-	}

-	else if(memcmp(buf, "GIF", 3) == 0)

+	}else if(memcmp(buf, "GIF", 3) == 0)

 		p->data = "gif -t9";

 	else if(memcmp(buf, "\111\111\052\000", 4) == 0) 

 		p->data = "fb/tiff2pic | fb/3to1 rgbv | fb/pcp -tplan9";

@@ -1052,16 +1120,6 @@

 void drawerr(Display *, char *msg)

 {

 	sysfatal("draw: %s", msg);

-}

-

-char*

-shortname(char *s)

-{

-	char *x;

-	if(x = strrchr(s, '/'))

-		if(x[1] != 0)

-			return x+1;

-	return s;

 }

 void