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/* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset:8 -*- */
/*
* This file is part of The Croco Library
*
* Copyright (C) 2002-2003 Dodji Seketeli <dodji@seketeli.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2.1 of the GNU Lesser General Public
* License as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/*
*$Id: test0-main.c,v 1.5 2004/03/07 13:22:49 dodji Exp $
*/
#include <stdio.h>
#include "cr-input.h"
#include "string.h"
/**
*@file
*Some test facilities for the #CRInput class.
*/
/**
*The options data structure.
*The variable of this data structure are set
*during the parsing the command line by the
*parse_command_line() function.
*/
struct Options {
gboolean display_help;
gboolean display_about;
gchar **files_list;
};
static void
display_help (char *prg_name);
static void
display_about (char *prg_name);
static void
parse_command_line (int a_argc, char **a_argv, struct Options *a_options);
static enum CRStatus
test_cr_input_read_byte (guchar * a_file_uri);
/**
*Displays the usage of the test
*facility.
*@param a_argc the argc variable passed to the main function.
*@param a_argv the argv variable passed to the main function.
*/
static void
display_help (char *prg_name)
{
g_print ("\n\n");
g_print ("usage: %s <file-to-parse>\n", prg_name);
g_print ("\t <file-to-parse>: the file to parse\n");
g_print ("\n\n");
g_print ("This test just reads the file byte per byte\nand sends each byte to stdout\n");
g_print ("\n\n");
}
/**
*Displays the about text.
*@param a_argc the argc variable passed to the main function.
*@param a_argv the argv variable passed to the main function.
*/
static void
display_about (char *prg_name)
{
g_print ("\n\n");
g_print ("%s is a libcroco CRInput class test program.\n", prg_name);
g_print ("It should run on GNU compliants systems.\n");
g_print ("\n\n");
g_print ("Initial author: Dodji Seketeli <dodji@seketeli.org>.\n");
g_print ("\n\n");
}
/**
*Parses the command line and updates an abstract "options" data structure.
*@param a_argc the argc variable passed to the main function by the OS.
*@param a_argv the argv variable passed to the main function by the OS.
*@param a_options out parameter. The abstraction of the parsed the options.
*/
static void
parse_command_line (int a_argc, char **a_argv, struct Options *a_options)
{
int i = 0;
g_return_if_fail (a_options);
memset (a_options, 0, sizeof (struct Options));
for (i = 1; i < a_argc; i++) {
if (a_argv[i][0] != '-')
break;
if (!strcmp (a_argv[i], "-h")
|| !strcmp (a_argv[i], "--help")) {
a_options->display_help = TRUE;
}
if (!strcmp (a_argv[i], "--about")) {
a_options->display_about = TRUE;
}
}
if (i >= a_argc) {
/*No file parameter where given */
a_options->files_list = NULL;
} else {
a_options->files_list = &a_argv[i];
}
}
/**
*The test of the cr_input_read_byte() method.
*Reads the each byte of a_file_uri using the
*cr_input_read_byte() method. Each byte is send to
*stdout.
*@param a_file_uri the file to read.
*@return CR_OK upon successfull completion of the
*function, an error code otherwise.
*/
static enum CRStatus
test_cr_input_read_byte (guchar * a_file_uri)
{
enum CRStatus status = CR_OK;
CRInput *input = NULL;
guchar byte = 0;
guint c = 0;
g_return_val_if_fail (a_file_uri, CR_BAD_PARAM_ERROR);
input = cr_input_new_from_uri (a_file_uri, CR_UTF_8);
if (!input) {
cr_utils_trace_debug ("Input Stream creation failed.");
return CR_ERROR;
}
for (status = CR_OK; status == CR_OK;) {
status = cr_input_read_byte (input, &byte);
if (status == CR_OK) {
c = byte;
printf ("%d", c);
fflush (stdout);
}
}
if (status == CR_END_OF_INPUT_ERROR) {
status = CR_OK;
}
cr_input_destroy (input);
input = NULL;
return status;
}
/**
*The entry point of the testing routine.
*/
int
main (int argc, char **argv)
{
struct Options options;
parse_command_line (argc, argv, &options);
if (options.display_help == TRUE) {
display_help (argv[0]);
return 0;
}
if (options.display_about == TRUE) {
display_about (argv[0]);
return 0;
}
if (options.files_list == NULL) {
display_help (argv[0]);
return 0;
}
test_cr_input_read_byte (options.files_list[0]);
return 0;
}
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