//
// aegis - project change supervisor
// Copyright (C) 2008, 2012 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/ac/string.h>

#include <common/progname.h>

#include <fmtgen/generator.h>


generator::~generator()
{
}


generator::generator(const nstring &filename) :
    ip(indent::create(filename))
{
    this_file_is_generated();
}


void
generator::this_file_is_generated()
{
    /*
     * DO NOT insert a timestamp in the generated files, it needlessly
     * changes the fingerprint.  This, in turn, causes cook to cook
     * too much, compiling several hundred files which do not need to
     * be compiled.
     */
    printf
    (
        "//\n"
        "// This file is generated by %s.\n"
        "//\n",
        progname_get()
    );
}


nstring
generator::base_name(const nstring &s)
{
    const char *cp = strrchr(s.c_str(), '/');
    if (cp)
        ++cp;
    else
        cp = s.c_str();
    char buffer[256];
    strendcpy(buffer, cp, buffer + sizeof(buffer));
    char *bp = strrchr(buffer, '.');
    if (bp)
        *bp = 0;
    for (bp = buffer; *bp; ++bp)
    {
        if (!isalnum((unsigned char)*bp))
            *bp = '_';
    }
    return buffer;
}


void
generator::printf(const char *fmt, ...)
{
    va_list ap;
    va_start(ap, fmt);
    vprintf(fmt, ap);
    va_end(ap);
}


void
generator::vprintf(const char *fmt, va_list ap)
{
    ip->vprintf(fmt, ap);
}


void
generator::wrap_and_print(const nstring &text)
{
    ip->wrap_and_print("", text);
}


void
generator::wrap_and_print(const nstring &prefix, const nstring &text)
{
    ip->wrap_and_print(prefix, text);
}


void
generator::include_once(const nstring &filename)
{
    ip->include_once(filename);
}


nstring
generator::calculate_include_file_name(const nstring &code_file_name)
{
    nstring name = code_file_name.downcase();
    if (name.ends_with(".cpp"))
        return (code_file_name.substr(0, code_file_name.size() - 3) + "h");
    if (name.ends_with(".cc"))
        return (code_file_name.substr(0, code_file_name.size() - 2) + "h");
    if (name.ends_with(".c"))
        return (code_file_name.substr(0, code_file_name.size() - 1) + "h");
    return (code_file_name + ".h");
}


// vim: set ts=8 sw=4 et :