gl_displayed_string_width
return gl_displayed_string_width(gl, gl->prompt, -1, 0);
term_slen = gl_displayed_string_width(gl, s, buff_slen, term_curpos);
if(gl_displayed_string_width(gl, from, -1, gl->term_curpos) ==
gl_displayed_string_width(gl, swap, -1, gl->term_curpos)) {
gl_displayed_string_width(gl, gl->line, buff_curpos, gl->prompt_len));
static int gl_displayed_string_width(GetLine *gl, const char *string, int nc,