NAME

khtml_closeto — close element contexts of kcgihtml to given depth

LIBRARY

library “libkcgihtml”

SYNOPSIS

#include <sys/types.h>
#include <stdarg.h>
#include <stdint.h>
#include <kcgi.h>
#include <kcgihtml.h>

enum kcgi_err
khtml_closeto(struct khtmlreq *req, size_t pos);

DESCRIPTION

Closes element scopes of req, initialised with khtml_open(3), up to but not including the depth pos. The depth is usually obtained with khtml_elemat(3).

If given a pos that's deeper than or immediately within the current scope, this does nothing and returns success.

RETURN VALUES

Returns an enum kcgi_err indicating the error state.

KCGI_OK: Success (not an error).
KCGI_ENOMEM: Internal memory allocation failure.
KCGI_HUP: The output connection has been terminated. For FastCGI connections, the current connection should be released with khttp_free(3) and parse loop reentered.
KCGI_FORM: The connection is still expecting headers with khttp_head(3). Indicates that khttp_body(3) did not return with success or was not invoked. For FastCGI connections, the current connection should be released with khttp_free(3) and parse loop reentered.
KCGI_SYSTEM: Internal system error writing to the output stream.

EXAMPLES

The following outputs a simple HTML page. It assumes r is a struct kreq pointer. For brevity, it does not do any error checking.

khttp_head(r, kresps[KRESP_STATUS],
  "%s", khttps[KHTTP_200]);
khttp_head(r, kresps[KRESP_CONTENT_TYPE],
  "%s", kmimetypes[KMIME_TEXT_HTML]);
khttp_body(r);
khtml_open(&req, r, 0);
khtml_elem(&req, KELEM_DOCTYPE);
khtml_elem(&req, KELEM_HTML);
pos = khtml_elemat(&req); /* save at html */
khtml_elem(&req, KELEM_HEAD);
khtml_elem(&req, KELEM_TITLE);
khtml_puts(&req, "Hello, world.");
khtml_closeto(&req, pos); /* to html */
khtml_closeelem(&req, 1); /* head */
khtml_elem(&req, KELEM_BODY);
khtml_puts(&req, "Hello, world");
khtml_close(&req);

STANDARDS

The referenced HTML5 standard is HTML5.2.

AUTHORS

Written by Kristaps Dzonsons <kristaps@bsd.lv>.