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#include "ShellApp.proto.h"
ShellApp::ShellApp(String name, String desc)
: Application(), invt(VirtualTerminal::getIn()), outvt(VirtualTerminal::getOut()) {
appName = name, appDesc = desc;
if (!invt.valid()) exit(1);
if (!outvt.valid()) exit(2);
addFlag("h", "help", "Show this help screen");
}
void ShellApp::init() {
//Parse flags
u32int argc = pr.argc();
for (u32int i = 0; i < argc; i++) {
String arg = pr.argv(i);
if (arg.empty()) continue;
if (arg == "-") {
i++;
if (i == argc) {
args.push("-");
} else {
for (; i < argc; i++) args.push(pr.argv(i));
}
} else if (arg[0] == WChar("-")) {
if (arg.substr(0, 5) == "--no-") {
bool found = false;
for (u32int i = 0; i < flags.size(); i++) {
if (flags[i].type == FT_BOOL) {
if (arg == (String("--no-") += flags[i].lName)) {
flags[i].boolVal = false;
found = true;
}
}
}
if (!found) outvt << "Unknown option : " << arg << ENDL;
} else if (arg.substr(0, 2) == "--") {
bool found = false;
for (u32int i = 0; i < flags.size(); i++) {
if (flags[i].type == FT_BOOL) {
if (arg == String("--") + flags[i].lName) {
flags[i].boolVal = true;
found = true;
}
} else {
if (arg.substr(2, 1 + flags[i].lName.size()) == flags[i].lName + "=") {
found = true;
flags[i].strVal = arg.substr(3 + flags[i].lName.size(), arg.size());
if (flags[i].type == FT_INT) flags[i].intVal = flags[i].strVal.toInt();
}
}
}
if (!found) outvt << "Unknown option : " << arg << ENDL;
} else {
for (u32int j = 1; j < arg.size(); j++) {
bool found = false;
for (u32int k = 0; k < flags.size(); k++) {
if (flags[k].sName == arg[j]) {
found = true;
if (flags[k].type == FT_BOOL) {
flags[k].boolVal = true;
} else {
i++;
if (i >= argc) {
outvt << "Missing argument for flag : -" << String(arg[j], 1) << ENDL;
} else {
flags[k].strVal = pr.argv(i);
if (flags[k].type == FT_INT) flags[k].intVal = flags[k].strVal.toInt();
}
}
break;
}
}
if (!found) {
outvt << "Unknown option : -" << String(arg[j], 1) << ENDL;
exit(-1);
}
}
}
} else {
args.push(arg);
}
}
//Eventually show help screen
if (bFlag("help")) {
outvt << appName << ": " << appDesc << "\n";
outvt << "Usage: \t" << appName << " <flags> [-] <arguments>\n\n";
outvt << "Possible flags :\n";
for (u32int i = 0; i < flags.size(); i++) {
outvt << " --" << flags[i].lName << "\t" << (flags[i].sName != 0 ? "-" : "") << String(flags[i].sName) << "\t";
if (flags[i].type == FT_STR) outvt << "Default: " << flags[i].strVal << "\n";
if (flags[i].type == FT_INT) outvt << "Default: " << flags[i].intVal << "\n";
if (flags[i].type == FT_BOOL) outvt << "Default: " << (flags[i].boolVal && flags[i].lName != "help" ? "on" : "off") << "\n";
if (!flags[i].desc.empty()) outvt << "\t" << flags[i].desc << "\n";
outvt << "\n";
}
exit(0);
}
}
//******************** FLAG HANDLING *****************
flag_t *ShellApp::getFlag(String name) {
for (u32int i = 0; i < flags.size(); i++) {
if (flags[i].lName == name) return &flags[i];
}
return NULL;
}
void ShellApp::addFlag(WChar sName, String lName, String desc, int type, String deflt) {
if (lName.empty()) return;
if (getFlag(lName) != false) return;
flag_t temp;
temp.sName = sName;
temp.lName = lName;
temp.type = type;
temp.desc = desc;
if (type == FT_BOOL) {
temp.boolVal = !deflt.empty();
} else if (type == FT_STR) {
temp.strVal = deflt;
} else if (type == FT_INT) {
temp.intVal = deflt.toInt();
}
flags.push(temp);
}
String ShellApp::sFlag(String name) {
flag_t* f = getFlag(name);
if (f == 0) return "";
if (f->type != FT_STR) return "";
return f->strVal;
}
int ShellApp::iFlag(String name) {
flag_t* f = getFlag(name);
if (f == 0) return 0;
if (f->type != FT_INT) return 0;
return f->intVal;
}
bool ShellApp::bFlag(String name) {
flag_t *f = getFlag(name);
if (f == 0) return false;
if (f->type != FT_BOOL) return false;
return f->boolVal;
}
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