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KHTML_ATTR(3) Library Functions Manual KHTML_ATTR(3) NAME khtml_attr, khtml_attrx -- open an element scope for kcgihtml LIBRARY library "libkcgihtml" SYNOPSIS #include <sys/types.h> #include <stdarg.h> #include <stdint.h> #include <kcgi.h> #include <kcgihtml.h> enum kcgi_err khtml_attr(struct khtmlreq *req, enum kelem elem, ...); enum kcgi_err khtml_attrx(struct khtmlreq *req, enum kelem elem, ...); DESCRIPTION Open a new scope of element elem on the current element stack of req, initialised with khtml_open(3). Scopes are closed with khtml_closeelem(3), khtml_closeto(3), or khtml_close(3). If elem is a "void" eleemnt (self-closing, like KELEM_LINK) or KELEM_DOCTYPE, the scope is immediately closed so no new scope is opened. For khtml_attr(), variable arguments are in pairs, with the first of a pair being a enum attr of the attribute type and the second being a non-NULL string. For khtml_attrx(), variable arguments are in triplets: the first is a enum attr of the attribute type, the second is a enum attrx describing the data format of the third type, and the third type is either an int64_t, char *, or double for KATTRX_INT, KATTRX_STRING, or KATTRX_DOUBLE, respectively. In both cases, string content is HTML escaped, for example, the double- quote character is rendered as """. This prevents arguments from "breaking" the attribute string context. The variable arguments terminated with a singular KATTR__MAX. RETURN VALUES Returns an enum kcgi_err indicating the error state. KCGI_OK Success (not an error). KCGI_ENOMEM Internal memory allocation failure, including reaching the maximum number of possible HTML scopes. KCGI_HUP The output connection has been terminated. For FastCGI connec- tions, 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). In- dicates 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); khtml_elem(&req, KELEM_HEAD); khtml_attr(req, KELEM_META, KATTR_CHARSET, "utf-8", KATTR__MAX); khtml_attrx(req, KELEM_LINK, KATTR_REL, KATTRX_STRING, "stylesheet", KATTR_HREF, KATTRX_STRING, "style.css", KATTR__MAX); khtml_close(&req); The latter invocation could just as easily use khtml_attr(). SEE ALSO kcgihtml(3) STANDARDS The referenced HTML5 standard is HTML5.2: https://www.w3.org/TR/html52. AUTHORS Written by Kristaps Dzonsons <kristaps@bsd.lv>. FreeBSD Ports 14.quarterly $Mdocdate$ KHTML_ATTR(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO | STANDARDS | AUTHORS
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