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    Length: 2034 (0x7f2)
    Types: TextFile
    Names: »output_utils.c«

└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
    └─ ⟦this⟧ »EUUGD11/euug-87hel/sec1/elm/src/output_utils.c« 

TextFile

/**			output_utils.c			**/

/** This file contains routines used for output in the ELM program.

    These routines (C) Copyright 1986 Dave Taylor
**/

#include "headers.h"


static char err_buffer[SLEN];		/* store last error message */

static char central_message_buffer[SLEN];

char *strcpy();

show_last_error()
{
	/** rewrite last error message! **/

	error(err_buffer);
}

clear_error()
{
	MoveCursor(LINES,0);
	CleartoEOLN();
	err_buffer[0] = '\0';
}

set_error(s)
char *s;
{
	strcpy(err_buffer, s);
}

error(s)
char *s;
{
	/** outputs error 's' to screen at line 22, centered! **/

	MoveCursor(LINES,0);
	CleartoEOLN();
	PutLine0(LINES,(COLUMNS-strlen(s))/2,s);
	fflush(stdout);
	strcpy(err_buffer, s);	/* save it too! */
}

/*VARARGS1*/

error1(s, a)
char *s, *a;
{
	/** same as error, but with a 'printf' argument **/
	char buffer[SLEN];

	sprintf(buffer,s,a);
	error(buffer);
}

/*VARARGS1*/

error2(s, a1, a2)
char *s, *a1, *a2;
{
	/** same as error, but with two 'printf' arguments **/
	char buffer[SLEN];

	sprintf(buffer,s, a1, a2);
	error(buffer);
}

/*VARARGS1*/

error3(s, a1, a2, a3)
char *s, *a1, *a2, *a3;
{
	/** same as error, but with three 'printf' arguments **/
	char buffer[SLEN];

	sprintf(buffer,s, a1, a2, a3);
	error(buffer);
}

lower_prompt(s)
char *s;
{
	/** prompt user for input on LINES-1 line, left justified **/

	PutLine0(LINES-1,0,s);
	CleartoEOLN();
}

prompt(s)
char *s;
{
	/** prompt user for input on LINES-3 line, left justified **/

	PutLine0(LINES-3,0,s);
	CleartoEOLN();
}


set_central_message(string, arg)
char *string, *arg;
{
	/** set up the given message to be displayed in the center of
	    the current window **/ 

	sprintf(central_message_buffer, string, arg);
}

display_central_message()
{
	/** display the message if set... **/

	if (central_message_buffer[0] != '\0') {
	  ClearLine(LINES-15);
	  Centerline(LINES-15, central_message_buffer);
	  fflush(stdout);
	}
}

clear_central_message()
{
	/** clear the central message buffer **/

	central_message_buffer[0] = '\0';
}