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/** @file
* @brief HID report descriptor - source code sink
*
* Copyright (C) 2010 Nikolai Kondrashov
*
* This file is part of hidrd.
*
* Hidrd is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Hidrd is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with hidrd; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @author Nikolai Kondrashov <spbnick@gmail.com>
*
* @(#) $Id: snk.c 439 2010-05-24 13:59:30Z spb_nick $
*/
#include "hidrd/cfg.h"
#include "hidrd/util/buf.h"
#include "hidrd/fmt/code/snk.h"
static bool
hidrd_code_snk_init(hidrd_snk *snk, char **perr,
size_t tabstop, bool comments, bool comments_comments)
{
hidrd_code_snk_inst *code_snk = (hidrd_code_snk_inst *)snk;
if (!hidrd_spec_snk_init(snk, perr, tabstop, false, comments_comments))
return false;
code_snk->comments = comments;
return true;
}
static bool
hidrd_code_snk_initv(hidrd_snk *snk, char **perr, va_list ap)
{
size_t tabstop = va_arg(ap, size_t);
bool comments = (va_arg(ap, int) != 0);
bool comments_comments = (va_arg(ap, int) != 0);
return hidrd_code_snk_init(snk, perr,
tabstop, comments, comments_comments);
}
#ifdef HIDRD_WITH_OPT
static const hidrd_opt_spec hidrd_code_snk_opts_spec[] = {
{.name = "tabstop",
.type = HIDRD_OPT_TYPE_U32,
.req = false,
.dflt = {.u32 = 4},
.desc = "number of spaces per tab"},
{.name = "comments",
.type = HIDRD_OPT_TYPE_BOOLEAN,
.req = false,
.dflt = {.boolean = true},
.desc = "enable comments in specification example format"},
{.name = "comments_comments",
.type = HIDRD_OPT_TYPE_BOOLEAN,
.req = false,
.dflt = {.boolean = false},
.desc = "enable comments in specification example format comments"},
{.name = NULL}
};
static bool
hidrd_code_snk_init_opts(hidrd_snk *snk, char **perr, const hidrd_opt *list)
{
return hidrd_code_snk_init(
snk, perr,
hidrd_opt_list_get_u32(list, "tabstop"),
hidrd_opt_list_get_boolean(list, "comments"),
hidrd_opt_list_get_boolean(list, "comments_comments"));
}
#endif /* HIDRD_WITH_OPT */
static bool
hidrd_code_snk_valid(const hidrd_snk *snk)
{
return (snk->type->size >= sizeof(hidrd_code_snk_inst)) &&
hidrd_spec_snk_valid(snk);
}
static bool
hidrd_code_snk_flush(hidrd_snk *snk)
{
bool result = false;
hidrd_code_snk_inst *code_snk = (hidrd_code_snk_inst *)
snk;
hidrd_spec_snk_inst *spec_snk = &code_snk->spec_snk;
const hidrd_spec_snk_ent_list *list = &spec_snk->list;
hidrd_spec_snk_ent *p;
size_t last_l = 0;
size_t l;
hidrd_ttbl *tbl = NULL;
hidrd_buf buf = HIDRD_BUF_EMPTY;
uint8_t *item_p;
size_t item_size;
if (snk->pbuf != NULL)
{
free(*snk->pbuf);
*snk->pbuf = NULL;
}
if (snk->psize != NULL)
*snk->psize = 0;
/* Find the last item */
for (p = list->ptr, l = 0; l < list->len; p++, l++)
if (p->name != NULL)
last_l = l;
/* If the comments are not requested */
if (!code_snk->comments)
{
tbl = hidrd_ttbl_new();
if (tbl == NULL)
goto cleanup;
}
else
{
if (!hidrd_spec_snk_ent_list_to_tbl(&tbl, list,
spec_snk->tabstop,
spec_snk->dumps,
spec_snk->comments))
goto cleanup;
/* Add comment end string column right after the spec comments */
for (l = 0; l < list->len; l++)
hidrd_ttbl_set(tbl, HIDRD_SPEC_SNK_ENT_LIST_CMNT_COL + 1, l,
"*/");
/* Insert comment start column before the leftmost column */
hidrd_ttbl_ins_cols(tbl, 0, 1);
for (l = 0; l < list->len; l++)
hidrd_ttbl_set(tbl, 0, l, "/*");
/* Make room for our output */
hidrd_ttbl_ins_cols(tbl, 0, 1);
}
/* Output the code */
for (p = list->ptr, l = 0; l < list->len; p++, l++)
{
if (p->item == NULL)
continue;
for (item_size = hidrd_item_get_size(p->item), item_p = p->item;
item_size > 0; item_size--, item_p++)
if (!hidrd_buf_add_printf(&buf,
(item_size == 1)
? ((l == last_l)
? "0x%.2hhX"
: "0x%.2hhX,")
: "0x%.2hhX, ",
*item_p))
goto cleanup;
if (!hidrd_buf_add_span(&buf, '\0', 1))
goto cleanup;
hidrd_ttbl_set(tbl, 0, l, (const char *)buf.ptr);
hidrd_buf_reset(&buf);
}
/* Render the table */
result = hidrd_ttbl_render((char **)snk->pbuf, snk->psize, tbl,
spec_snk->tabstop);
cleanup:
hidrd_buf_clnp(&buf);
hidrd_ttbl_delete(tbl);
spec_snk->err = result ? HIDRD_SPEC_SNK_ERR_NONE
: HIDRD_SPEC_SNK_ERR_ALLOC;
return result;
}
const hidrd_snk_type hidrd_code_snk = {
.size = sizeof(hidrd_code_snk_inst),
.initv = hidrd_code_snk_initv,
#ifdef HIDRD_WITH_OPT
.init_opts = hidrd_code_snk_init_opts,
.opts_spec = hidrd_code_snk_opts_spec,
#endif
.valid = hidrd_code_snk_valid,
.errmsg = hidrd_spec_snk_errmsg,
.put = hidrd_spec_snk_put,
.flush = hidrd_code_snk_flush,
.clnp = hidrd_spec_snk_clnp,
};
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