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/*
* Copyright (C) 2002-2004 Pekka Enberg
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "buffer.h"
#include "error.h"
#include "indent.h"
#include "version.h"
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static void version(void)
{
printf("XML Indent, version %s\n", VERSION);
printf("Copyright (C) 2002-2004 Pekka Enberg\n");
}
static void usage(void)
{
printf("Usage: %s [options] [filename] ...\n", PACKAGE);
printf("Options:\n");
printf("\t-o <output>\tOutput file\n");
printf("\t-i <indent>\tIndent level\n");
printf("\t-t\t\tUse tabs instead of spaces for indent\n");
printf("\t-l <max-cols>\tMaximum columns for line wrapping\n");
printf("\t-n <pos>\tSuppress newline at position\n");
printf("\t-f\t\tForce newline on elements without children\n");
printf("\t-h\t\tHelp\n");
printf("\t-v\t\tVersion information\n");
printf("\t-w\t\tOverwrite original file\n");
}
/* Overwrite original files. */
static bool overwrite = false;
static int format_file(const char * filename, char * output_filename,
struct indent_options * opts)
{
char input_filename[FILENAME_MAX];
FILE * input;
FILE * output;
input_filename[0] = '\0';
if (filename != NULL) {
strcpy(input_filename, filename);
/* Avoid zero-length files. */
if (overwrite || strcmp(input_filename, output_filename) == 0) {
char backup_filename[FILENAME_MAX];
strcpy(backup_filename, input_filename);
strcat(backup_filename, "~");
rename(input_filename, backup_filename);
strcpy(output_filename, input_filename);
strcpy(input_filename, backup_filename);
}
}
if (strlen(input_filename) > 0) {
input = fopen(input_filename, "r");
if (NULL == input) {
error("Could not open '%s': %s.", input_filename,
strerror(errno));
return EXIT_FAILURE;
}
} else {
input = stdin;
}
if (strlen(output_filename) > 0) {
output = fopen(output_filename, "w");
if (NULL == output) {
error("Could not open '%s': %s.", output_filename,
strerror(errno));
return EXIT_FAILURE;
}
} else {
output = stdout;
}
indent(input, output, opts);
if (output != stdout)
fclose(output);
if (input != stdout)
fclose(input);
return EXIT_SUCCESS;
}
static void parse_force_newline_arg(char * arg, struct indent_options * opts)
{
if (strcmp(arg, "as") == 0) {
opts->force_newline_after_start_tag = false;
} else if (strcmp(arg, "ae") == 0) {
opts->force_newline_after_end_tag = false;
} else if (strcmp(arg, "bs") == 0) {
opts->force_newline_before_start_tag = false;
} else if (strcmp(arg, "be") == 0) {
opts->force_newline_before_end_tag = false;
}
}
static void parse_args(int argc, char * argv[], struct indent_options * opts,
char * output_filename)
{
bool explicit_indent_level = false;
for (;;) {
int arg_index = getopt(argc, argv, "hfi:l:o:n:tvw");
if (arg_index == -1) {
break;
}
switch (arg_index) {
case 'h':
usage();
exit(EXIT_SUCCESS);
case 'i':
opts->num_indent_chars = atoi(optarg);
explicit_indent_level = true;
break;
case 'l':
opts->max_columns = atoi(optarg);
opts->wrap_long_lines = true;
break;
case 't':
opts->indent_char = '\t';
if (!explicit_indent_level) {
/* Default indent level for tabs is different. */
opts->num_indent_chars = 1;
}
break;
case 'f':
opts->force_always = true;
break;
case 'o':
strcpy(output_filename, optarg);
break;
case 'n':
parse_force_newline_arg(optarg, opts);
break;
case 'v':
version();
exit(EXIT_SUCCESS);
case 'w':
overwrite = true;
break;
default:
usage();
exit(EXIT_FAILURE);
}
}
}
int main(int argc, char * argv[])
{
char output_filename[FILENAME_MAX];
struct indent_options opts;
int ret = EXIT_SUCCESS;
int i;
output_filename[0] = '\0';
indent_options_set_defaults(&opts);
parse_args(argc, argv, &opts, output_filename);
/* Iterate over all input files. */
for (i = optind; i < argc; i++) {
ret = format_file(argv[i], output_filename, &opts);
if (ret != EXIT_SUCCESS)
break;
}
/* When we have no input files to process, wait for stdin. */
if (optind == argc)
ret = format_file(NULL, output_filename, &opts);
return ret;
}
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