Re: xmlSaveToFd: unexpected behavior while redirecting the 'stdout' stream to a file
YuGiOhJCJ Mailing-List via xml <[email protected]>
| Newsgroups | gmane.comp.gnome.lib.xml.general |
|---|---|
| Message-ID | <[email protected]> |
Thanks for the explanation.
In order to use buffered IO only, I am now using the 'xmlSaveFile' function (instead of 'xmlSaveToFd'):
---
#include <libxml/tree.h> /* for xmlSaveFile */
#include <stdio.h> /* for printf */
#include <string.h> /* for strlen */
int main()
{
const char *str = "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n<head>\n<title>test</title>\n</head>\n<body>\n<p>test</p>\n</body>\n</html>\n";
xmlDocPtr doc = NULL;
printf("Content-Type: application/xhtml+xml;\n\n");
doc = xmlParseMemory(str, strlen(str) + 1);
if(xmlSaveFile("-", doc) == -1)
{
fprintf(stderr, "Unable to dump the document to a file.\n");
exit(EXIT_FAILURE);
}
xmlFreeDoc(doc);
xmlCleanupParser();
exit(EXIT_SUCCESS);
}
---
Now, I have the expected behavior while redirecting the 'stdout' stream to a file:
---
$ ./main.out 1>1.txt
$ cat 1.txt
Content-Type: application/xhtml+xml;
<?xml version="1.0"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>test</title>
</head>
<body>
<p>test</p>
</body>
</html>
---
However, with this solution, I loose the 'options' parameter that was available with the 'xmlSaveToFd' function.
Is there a similar solution with the 'options' parameter please?
On Tue, 3 Apr 2018 14:28:24 +0200
Nick Wellnhofer <[email protected]> wrote:
> On 03/04/2018 14:02, YuGiOhJCJ Mailing-List via xml wrote:
> > printf("Content-Type: application/xhtml+xml;\n\n");
>
> This operates on the stdout FILE pointer using buffered IO.
>
> > ctxt = xmlSaveToFd(1, NULL, XML_SAVE_FORMAT);
>
> This operates on the stdout file descriptor using unbuffered IO. You're mixing
> buffered and unbuffered IO.
>
> Nick