src/output/amgc_output_pad_symbol.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

/**********************************************************/
/*  apimagic: cparser-based API normalization utility     */
/*  Copyright (C) 2015--2016  Z. Gilboa                   */
/*  Released under GPLv2 and GPLv3; see COPYING.APIMAGIC. */
/**********************************************************/

#include <stdio.h>
#include <string.h>

#include <apimagic/apimagic.h>
#include "apimagic_driver_impl.h"

int  amgc_output_pad_symbol(
	const struct amgc_driver_ctx *	dctx,
	const char *			symbol,
	const struct amgc_layout *	layout)
{
	int len      = (int)(strlen(symbol));
	int fdout    = amgc_driver_fdout(dctx);
	int symwidth = layout->symwidth;

	if (layout->symwidth < 1)
		return -1;

	if (layout->tabwidth == 0)
		return amgc_dprintf(
			fdout,"%*c",
			layout->symwidth-len,' ');

	symwidth += layout->tabwidth;
	symwidth &= (~(layout->tabwidth-1));

	len &= (~(layout->tabwidth-1));

	while (len < symwidth) {
		if (amgc_dprintf(fdout,"\t") < 0)
			return -1;

		len += layout->tabwidth;
	}

	return 0;
}