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Allow escape character processing

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Fixes #101 reported by Martin Zizka
Converts \xNN characters > 0x7c to UTF-8 if appropriate
Removes some redundant legacy code
This commit is contained in:
Robin Stuart 2018-04-22 14:25:39 +01:00
parent 909e307636
commit dddf2934fc
3 changed files with 22 additions and 21 deletions
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9
backend/library.c
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@ -612,7 +612,7 @@ static int reduced_charset(struct zint_symbol *symbol, const unsigned char *sour
} }
} }
switch (symbol->input_mode) { switch (symbol->input_mode & 0x07) {
case DATA_MODE: case DATA_MODE:
case GS1_MODE: case GS1_MODE:
memcpy(preprocessed, source, in_length); memcpy(preprocessed, source, in_length);
@ -861,7 +861,14 @@ int escape_char_process(struct zint_symbol *symbol, unsigned char *input_string,
hex1 = ctoi(input_string[in_posn + 2]); hex1 = ctoi(input_string[in_posn + 2]);
hex2 = ctoi(input_string[in_posn + 3]); hex2 = ctoi(input_string[in_posn + 3]);
if ((hex1 >= 0) && (hex2 >= 0)) { if ((hex1 >= 0) && (hex2 >= 0)) {
if (hex1 > 7 && (symbol->input_mode & UNICODE_MODE) != 0) {
// Convert to UTF-8
escaped_string[out_posn] = 0xc0 + (hex1 >> 2);
out_posn++;
escaped_string[out_posn] = 0x80 + ((hex1 & 0x03) << 4) + hex2;
} else {
escaped_string[out_posn] = (hex1 << 4) + hex2; escaped_string[out_posn] = (hex1 << 4) + hex2;
}
in_posn += 4; in_posn += 4;
} else { } else {
strcpy(symbol->errtxt, "233: Corrupt escape character in input data"); strcpy(symbol->errtxt, "233: Corrupt escape character in input data");

2
backend/zint.h
View file

@ -223,8 +223,6 @@ extern "C" {
#define DATA_MODE 0 #define DATA_MODE 0
#define UNICODE_MODE 1 #define UNICODE_MODE 1
#define GS1_MODE 2 #define GS1_MODE 2
#define KANJI_MODE 3
#define SJIS_MODE 4
#define ESCAPE_MODE 8 #define ESCAPE_MODE 8
// Data Matrix specific options // Data Matrix specific options

12
frontend/main.c
View file

@ -432,8 +432,6 @@ int main(int argc, char **argv) {
{"primary", 1, 0, 0}, {"primary", 1, 0, 0},
{"scale", 1, 0, 0}, {"scale", 1, 0, 0},
{"gs1", 0, 0, 0}, {"gs1", 0, 0, 0},
{"kanji", 0, 0, 0},
{"sjis", 0, 0, 0},
{"binary", 0, 0, 0}, {"binary", 0, 0, 0},
{"notext", 0, 0, 0}, {"notext", 0, 0, 0},
{"square", 0, 0, 0}, {"square", 0, 0, 0},
@ -489,15 +487,13 @@ int main(int argc, char **argv) {
if (!strcmp(long_options[option_index].name, "gs1")) { if (!strcmp(long_options[option_index].name, "gs1")) {
my_symbol->input_mode = GS1_MODE; my_symbol->input_mode = GS1_MODE;
} }
if (!strcmp(long_options[option_index].name, "kanji")) {
my_symbol->input_mode = KANJI_MODE;
}
if (!strcmp(long_options[option_index].name, "sjis")) {
my_symbol->input_mode = SJIS_MODE;
}
if (!strcmp(long_options[option_index].name, "binary")) { if (!strcmp(long_options[option_index].name, "binary")) {
if (my_symbol->input_mode & ESCAPE_MODE) {
my_symbol->input_mode = DATA_MODE + ESCAPE_MODE;
} else {
my_symbol->input_mode = DATA_MODE; my_symbol->input_mode = DATA_MODE;
} }
}
if (!strcmp(long_options[option_index].name, "fg")) { if (!strcmp(long_options[option_index].name, "fg")) {
strncpy(my_symbol->fgcolour, optarg, 7); strncpy(my_symbol->fgcolour, optarg, 7);
} }