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Add batch option to command line

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Made a start on adding batch capability to the command line.
Will also accept batch input from stdin.
This commit is contained in:
Robin Stuart 2010-12-24 10:55:08 +00:00
parent 1c540a6382
commit bbabd40a5c
1 changed files with 104 additions and 18 deletions
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86
frontend/main.c
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@ -104,6 +104,7 @@ void usage(void)
" --square Force Data Matrix symbols to be square\n"
" --init Create reader initialisation symbol (Code 128)\n"
" --smalltext Use half-size text in PNG images\n"
" --batch Treat each line of input as a separate data set\n"
, ZINT_VERSION);
}
@ -167,6 +168,69 @@ int escape_char_process(struct zint_symbol *my_symbol, unsigned char input_strin
return error_number;
}
char itoc(int source)
{ /* Converts an integer value to its hexadecimal character */
if ((source >= 0) && (source <= 9)) {
return ('0' + source); }
else {
return ('A' + (source - 10)); }
}
void concat(char dest[], char source[])
{ /* Concatinates dest[] with the contents of source[], copying /0 as well */
unsigned int i, j, n;
j = strlen(dest);
n = strlen(source);
for(i = 0; i <= n; i++) {
dest[i + j] = source[i]; }
}
int batch_process(struct zint_symbol *symbol, char *filename)
{
FILE *file;
unsigned char buffer[7100];
unsigned char character;
int posn = 0, error_number = 0, line_count = 1;
char output_file[127];
memset(buffer, 0, sizeof(unsigned char) * 7100);
if(!strcmp(filename, "-")) {
file = stdin;
} else {
file = fopen(filename, "rb");
if (!file) {
strcpy(symbol->errtxt, "Unable to read input file");
return ERROR_INVALID_DATA;
}
}
do {
character = fgetc(file);
if(character == '\n') {
output_file[0] = itoc(line_count);
concat(output_file, ".png");
strcpy(symbol->outfile, output_file);
error_number = ZBarcode_Encode_and_Print(symbol, buffer, posn, 0);
if(error_number != 0) {
printf("On line %d: %s\n", line_count, symbol->errtxt);
}
ZBarcode_Clear(symbol);
memset(buffer, 0, sizeof(unsigned char) * 7100);
memset(output_file, 0, sizeof(char) * 127);
posn = 0;
line_count++;
} else {
buffer[posn] = character;
posn++;
}
} while (!feof(file));
fclose(file);
return error_number;
}
int main(int argc, char **argv)
{
struct zint_symbol *my_symbol;
@ -174,12 +238,14 @@ int main(int argc, char **argv)
int error_number;
int rotate_angle;
int generated;
int batch_mode;
error_number = 0;
rotate_angle = 0;
generated = 0;
my_symbol = ZBarcode_Create();
my_symbol->input_mode = UNICODE_MODE;
batch_mode = 0;
if(argc == 1) {
usage();
@ -222,6 +288,7 @@ int main(int argc, char **argv)
{"square", 0, 0, 0},
{"init", 0, 0, 0},
{"smalltext", 0, 0, 0},
{"batch", 0, 0, 0},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "htb:w:d:o:i:rcmp", long_options, &option_index);
@ -363,6 +430,10 @@ int main(int argc, char **argv)
default: rotate_angle = 0; break;
}
}
if(!strcmp(long_options[option_index].name, "batch")) {
/* Switch to batch processing mode */
batch_mode = 1;
}
break;
case 'h':
@ -396,6 +467,7 @@ int main(int argc, char **argv)
break;
case 'd': /* we have some data! */
if(batch_mode == 0) {
error_number = escape_char_process(my_symbol, (unsigned char*)optarg, strlen(optarg));
if(error_number == 0) {
error_number = ZBarcode_Print(my_symbol, rotate_angle);
@ -406,9 +478,13 @@ int main(int argc, char **argv)
ZBarcode_Delete(my_symbol);
return 1;
}
} else {
fprintf(stderr, "Cannot define data in batch mode");
}
break;
case 'i': /* Take data from file */
if(batch_mode == 0) {
error_number = ZBarcode_Encode_File(my_symbol, optarg);
if(error_number == 0) {
error_number = ZBarcode_Print(my_symbol, rotate_angle);
@ -419,6 +495,16 @@ int main(int argc, char **argv)
ZBarcode_Delete(my_symbol);
return 1;
}
} else {
/* Take each line of text as a separate data set */
error_number = batch_process(my_symbol, optarg);
generated = 1;
if(error_number != 0) {
fprintf(stderr, "%s\n", my_symbol->errtxt);
ZBarcode_Delete(my_symbol);
return 1;
}
}
break;
case 'o':