LIBXO(3)               FreeBSD Library Functions Manual               LIBXO(3)

NAME
     xo_message, xo_message_c, xo_message_hc, xo_message_hcv - emit messages
     in multiple output styles

LIBRARY
     Text, XML, JSON, and HTML Output Emission Library (libxo, -lxo)

SYNOPSIS
     #include <libxo/xo.h>

     void
     xo_message(const char *fmt, ...);

     void
     xo_message_e(const char *fmt, ...);

     void
     xo_message_c(int code, const char *fmt, ...);

     void
     xo_message_hc(xo_handle_t *xop, int code, const char *fmt, ...);

     void
     xo_message_hcv(xo_handle_t *xop, int code, const char *fmt, va_list vap);

DESCRIPTION
     xo_message generates text message which lack any sort of structure.
     These functions should not be used under normal conditions, since they
     completely defeat the value of using libxo.  They are provided for
     scenarios when the output's content is genuinely unknown and unusable.
     It is used in converting programs where err/warn where not used, and
     error messages went to stdout, not stderr.  Use of xo_message allows
     backwards compatibility with that output, but does not put the error in a
     useful form.

     The xo_message function generates output strings using the printf-style
     format string and arguments provided.  If the format string does not end
     in a newline, xo_message_e will appear a colon, a space, and the error
     associated with the current errno value.  xo_message_c behaves similarly
     for the value passed in the code parameter.  xo_message_hc accepts a
     handle as opened by xo_create(3) and xo_message_hcv accepts a va_list
     parameter of arguments.

SEE ALSO
     xo_emit(3), libxo(3)

HISTORY
     The libxo library first appeared in FreeBSD 11.0.

AUTHORS
     libxo was written by Phil Shafer <phil@freebsd.org>.

FreeBSD 13.1-RELEASE-p6        December 4, 2014        FreeBSD 13.1-RELEASE-p6