bulkrays/hcpp2cpp.cpp at master · jd-code/bulkrays · GitHub

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#include<errno.h>
#include<string.h>

#include<iostream>
#include<fstream>
#include<string>

usingnamespacestd;

bool debug = false;


bool atbeginingosstring = true;

voidescape (ostream & out, char c) {
switch (c) {
case10:
case13:
if (!atbeginingosstring)
 out << "\\015\\012\"";
 out << c;
 atbeginingosstring = true;
break;

default:
if (atbeginingosstring) {
 out << '"';
 atbeginingosstring = false;
 }
switch (c) {
case'"': out << "\\\""; break;
case'\\': out << "\\\\"; break;
default: out << c; break;
 }
 }
}

boolparse (istream &in, ostream &out) {
 string matchbegin ("{{"),
matchend ("}}");
#defineMATCHLEN2
 string const * match = &matchbegin;
bool incpp = true;
char c;
size_t pos = 0;

while (in && in.get(c)) {
if (c == (*match)[pos]) {
 pos ++;
if (pos == MATCHLEN) {
if (incpp) {
 incpp = false;
 match = &matchend;
 atbeginingosstring = true;
 out << "";
 } else {
 incpp = true;
 match = &matchbegin;
if (!atbeginingosstring)
 out << '"';
 out << "";
 }
 pos = 0;
 }
	} else {
if (pos != 0) {
for (size_t i=0 ; i<pos ; i++) {
if (incpp)
 out << (*match)[i];
else
escape(out, (*match)[i]);
 }
 pos = 0;
 }
if (incpp)
 out << c;
else
escape(out, c);
	}
 }
returntrue;
}

voidusage (void) {
 cout << "usage : hcpp2cpp [ ... input.hcpp ... ] -o[ ]output.cc" << endl << endl;
}

intmain (int nb, char ** cmde) {

if (nb == 1) {
usage();
return1;
 }

 string outputfname;

int i;
for (i=1 ; i<nb ; i++) {	// let's seek for the output name
if (strncmp (cmde[i], "-o", 2) == 0) {
if (cmde[i][2] != 0) {
 outputfname += (cmde[i] + 2);
 } elseif (i+1 < nb) {
 outputfname += cmde[i+1];
 }
break;
	}
 }

if (outputfname.empty()) {
	cerr << "hcpp2cpp error, missing filename output" << endl;
usage();
return1;
 }

 ofstream out(outputfname.c_str());

if (!out) {
int e = errno;
	cerr << "hcpp2cpp error, cannot open " << outputfname << " , "
 << strerror(e) << endl;
return1;
 }

for (i=1 ; i<nb ; i++) {
if (strncmp (cmde[i], "-o", 2) == 0) {
if (cmde[i][2] == 0) {
 i++;
 }
continue;
	}

	ifstream in(cmde[i]);
if (!in) {
int e = errno;
 cerr << "hcpp2cpp error, cannot open " << cmde[i] << " , "
 << strerror(e) << endl;
return1;
	}
if (debug)
cerr << "parsing " << cmde[i] << " ..." << endl;
	out << "# 1 \"" << cmde[i] << "\"" << endl;
if (!parse (in, out))
break;
 }

return0;
}