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//
// aegis - project change supervisor
// Copyright (C) 2006, 2008 Peter Miller
//
// This program 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 3 of the License, or
// (at your option) any later version.
//
// This program 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 this program. If not, see
// <http://www.gnu.org/licenses/>.
//
#include <common/ac/ctype.h>
#include <common/nstring.h>
#include <common/nstring/accumulator.h>
nstring
nstring::quote_c()
const
{
static nstring_accumulator ac;
ac.clear();
ac.push_back('"');
const char *cp = c_str();
for (;;)
{
unsigned char c = *cp++;
switch (c)
{
case '\0':
ac.push_back('"');
return ac.mkstr();
case '\\':
ac.push_back("\\\\");
break;
case '"':
ac.push_back("\\\"");
break;
case '\a':
ac.push_back("\\a");
break;
case '\b':
ac.push_back("\\b");
break;
case '\f':
ac.push_back("\\f");
break;
case '\n':
ac.push_back("\\n");
break;
case '\r':
ac.push_back("\\r");
break;
case '\v':
ac.push_back("\\v");
break;
case ' ': case '!': case '#':
case '$': case '%': case '&': case '\'':
case '(': case ')': case '*': case '+':
case ',': case '-': case '.': case '/':
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
case '8': case '9': case ':': case ';':
case '<': case '=': case '>': case '?':
case '@': case 'A': case 'B': case 'C':
case 'D': case 'E': case 'F': case 'G':
case 'H': case 'I': case 'J': case 'K':
case 'L': case 'M': case 'N': case 'O':
case 'P': case 'Q': case 'R': case 'S':
case 'T': case 'U': case 'V': case 'W':
case 'X': case 'Y': case 'Z': case '[':
case ']': case '^': case '_':
case '`': case 'a': case 'b': case 'c':
case 'd': case 'e': case 'f': case 'g':
case 'h': case 'i': case 'j': case 'k':
case 'l': case 'm': case 'n': case 'o':
case 'p': case 'q': case 'r': case 's':
case 't': case 'u': case 'v': case 'w':
case 'x': case 'y': case 'z': case '{':
case '|': case '}': case '~':
ac.push_back(c);
break;
default:
if (isprint(c))
ac.push_back(c);
else
ac.push_back(nstring::format("\\%03o", c));
break;
}
}
}
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