1815     expand_T	*xp,  in set_context_for_expression()  argument
1826 	xp->xp_context = EXPAND_USER_VARS;  in set_context_for_expression()
1832 		xp->xp_pattern = p;  in set_context_for_expression()
1841 	xp->xp_context = cmdidx == CMD_call ? EXPAND_FUNCTIONS  in set_context_for_expression()
1843     while ((xp->xp_pattern = vim_strpbrk(arg,  in set_context_for_expression()
1846 	c = *xp->xp_pattern;  in set_context_for_expression()
1849 	    c = xp->xp_pattern[1];  in set_context_for_expression()
1852 		++xp->xp_pattern;  in set_context_for_expression()
1853 		xp->xp_context = has_expr ? EXPAND_EXPRESSION : EXPAND_NOTHING;  in set_context_for_expression()
1857 		xp->xp_context = EXPAND_SETTINGS;  in set_context_for_expression()
1858 		if ((c == 'l' || c == 'g') && xp->xp_pattern[2] == ':')  in set_context_for_expression()
1859 		    xp->xp_pattern += 2;  in set_context_for_expression()
1866 	    xp->xp_context = EXPAND_ENV_VARS;  in set_context_for_expression()
1871 	    xp->xp_context = EXPAND_EXPRESSION;  in set_context_for_expression()
1874 		&& xp->xp_context == EXPAND_EXPRESSION)  in set_context_for_expression()
1880 		&& xp->xp_context == EXPAND_FUNCTIONS  in set_context_for_expression()
1881 		&& vim_strchr(xp->xp_pattern, '(') == NULL)  in set_context_for_expression()
1890 		while ((c = *++xp->xp_pattern) != NUL && c != '"')  in set_context_for_expression()
1891 		    if (c == '\\' && xp->xp_pattern[1] != NUL)  in set_context_for_expression()
1892 			++xp->xp_pattern;  in set_context_for_expression()
1893 		xp->xp_context = EXPAND_NOTHING;  in set_context_for_expression()
1898 		while ((c = *++xp->xp_pattern) != NUL && c != '\'')  in set_context_for_expression()
1900 		xp->xp_context = EXPAND_NOTHING;  in set_context_for_expression()
1904 		if (xp->xp_pattern[1] == '|')  in set_context_for_expression()
1906 		    ++xp->xp_pattern;  in set_context_for_expression()
1907 		    xp->xp_context = EXPAND_EXPRESSION;  in set_context_for_expression()
1910 		    xp->xp_context = EXPAND_COMMANDS;  in set_context_for_expression()
1913 		xp->xp_context = EXPAND_EXPRESSION;  in set_context_for_expression()
1918 	    xp->xp_context = EXPAND_EXPRESSION;  in set_context_for_expression()
1919 	arg = xp->xp_pattern;  in set_context_for_expression()
1930 	    && xp->xp_context == EXPAND_EXPRESSION)  in set_context_for_expression()
1942     xp->xp_pattern = arg;  in set_context_for_expression()