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/*
Copyright 2022-2023 Gabriel Jensen.
This file is part of agbsum.
agbsum is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
agbsum 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with agbsum. If not, see <https://www.gnu.org/licenses/>.
*/
#include <agbsum.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
noreturn static void agb_expparval(char const chrpar) {
fprintf(stderr,"Expected value for character parameter '%c'\n",chrpar);
agb_exi(agb_cnd_err,NULL);
}
static bool agb_chkchrpar(agb_dat * const restrict dat,char const* const restrict par) {
char const chrpar = par[0x0u];
if (chrpar == '\x0') {return true;}
char const* const restrict paramval = &par[0x1];
switch (chrpar) {
default:
fprintf(stderr,"Invalid character parameter '%c'\n",chrpar);
agb_exi(agb_cnd_err,NULL);
case 'h':
agb_hlp();
agb_exi(agb_cnd_oky,NULL);
case 'i':
{
if (paramval[0x0u] == '\x0') {agb_expparval(chrpar);}
dat->pth = paramval;
}
return true;
case 'p':
dat->dopat = true;
return false;
case 's':
dat->sil = true;
return false;
}
}
void agb_chkpar(agb_dat * const restrict dat,int const argc,char const* const* const argv) {
if (argc < 0x2) {
agb_hlp();
agb_exi(agb_cnd_oky,NULL);
}
else {
size_t const numpar = argc;
for (size_t pos = 0x1u;pos < numpar;++pos) {
char const* const par = argv[pos];
if (par[0x0u] == '-') {
if (par[0x1u] == '-') {
char const* const lngparam = &par[0x2u];
if (lngparam[0x0u] == '\x0') {
fputs("Missing long parameter after '--' sequence\n",stderr);
agb_exi(agb_cnd_err,NULL);
}
if (!strcmp(lngparam,"help")) {
agb_hlp();
agb_exi(agb_cnd_oky,NULL);
}
fprintf(stderr,"Invalid long parameter \"%s\"\n",lngparam);
agb_exi(agb_cnd_err,NULL);
}
if (par[0x1u] == '\x0') {
fputs("Missing character parameter after '-'\n",stderr);
agb_exi(agb_cnd_err,NULL);
}
for (char const* chrpos = &par[0x1u];;++chrpos) {if (agb_chkchrpar(dat,chrpos)) {break;}}
continue;
}
}
if (dat->pth == NULL) {
fputs("ROM not set (missing character parameter 'i')\n",stderr);
agb_exi(agb_cnd_err,NULL);
}
}
}
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