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Implement pdfioDictIterateKeys API (Issue #31)

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This commit is contained in:
Michael R Sweet
2022-06-27 10:17:00 -04:00
parent ed4e2fc38a
commit f4b8983c61
6 changed files with 170 additions and 1 deletions
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59
testpdfio.c
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@@ -34,6 +34,7 @@ static int do_test_file(const char *filename, int objnum, bool verbose);
static int do_unit_tests(void);
static int draw_image(pdfio_stream_t *st, const char *name, double x, double y, double w, double h, const char *label);
static bool error_cb(pdfio_file_t *pdf, const char *message, bool *error);
static bool iterate_cb(pdfio_dict_t *dict, const char *key, void *cb_data);
static ssize_t output_cb(int *fd, const void *buffer, size_t bytes);
static const char *password_cb(void *data, const char *filename);
static int read_unit_file(const char *filename, size_t num_pages, size_t first_image, bool is_output);
@@ -507,6 +508,8 @@ do_unit_tests(void)
size_t first_image, // First image object
num_pages; // Number of pages written
char temppdf[1024]; // Temporary PDF file
pdfio_dict_t *dict; // Test dictionary
int count = 0; // Number of key/value pairs
static const char *complex_dict = // Complex dictionary value
"<</Annots 5457 0 R/Contents 5469 0 R/CropBox[0 0 595.4 842]/Group 725 0 R"
"/MediaBox[0 0 595.4 842]/Parent 23513 0 R/Resources<</ColorSpace<<"
@@ -968,6 +971,41 @@ do_unit_tests(void)
// TODO: Test for known values in this test file.
// Test dictionary APIs
fputs("pdfioDictCreate: ", stdout);
if ((dict = pdfioDictCreate(inpdf)) != NULL)
{
puts("PASS");
fputs("pdfioDictSet*: ", stdout);
if (pdfioDictSetBoolean(dict, "Boolean", true) && pdfioDictSetName(dict, "Name", "Name") && pdfioDictSetNumber(dict, "Number", 42.0) && pdfioDictSetString(dict, "String", "String"))
{
puts("PASS");
}
else
{
puts("FAIL");
return (1);
}
fputs("pdfioDictIterateKeys: ", stdout);
pdfioDictIterateKeys(dict, iterate_cb, &count);
if (count == 4)
{
puts("PASS");
}
else
{
printf("FAIL (got %d, expected 4)\n", count);
return (1);
}
}
else
{
puts("FAIL");
return (1);
}
// Test the value parsers for edge cases...
fputs("_pdfioValueRead(complex_dict): ", stdout);
s = complex_dict;
@@ -1212,6 +1250,27 @@ error_cb(pdfio_file_t *pdf, // I - PDF file
}
//
// 'iterate_cb()' - Test pdfioDictIterateKeys function.
//
static bool // O - `true` to continue, `false` to stop
iterate_cb(pdfio_dict_t *dict, // I - Dictionary
const char *key, // I - Key
void *cb_data) // I - Callback data
{
int *count = (int *)cb_data; // Pointer to counter
if (!dict || !key || !cb_data)
return (false);
(*count)++;
return (true);
}
//
// 'output_cb()' - Write output to a file.
//