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Implement value/array/dict reading, refactor indirect references.

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Michael R Sweet
2021-05-04 10:34:17 -04:00
parent e6a6ed708a
commit a5468b1b87
5 changed files with 291 additions and 19 deletions
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45
pdfio-array.c
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@@ -196,8 +196,9 @@ pdfioArrayAppendObject(
return (false);
// Add an indirect reference...
v.type = PDFIO_VALTYPE_INDIRECT;
v.value.obj = value;
v.type = PDFIO_VALTYPE_INDIRECT;
v.value.indirect.number = value->number;
v.value.indirect.generation = value->generation;
return (append_value(a, &v));
}
@@ -429,7 +430,7 @@ pdfioArrayGetObject(pdfio_array_t *a, // I - Array
if (!a || n >= a->num_values || a->values[n].type != PDFIO_VALTYPE_INDIRECT)
return (NULL);
else
return (a->values[n].value.obj);
return (pdfioFileGetObject(a->pdf, a->values[n].value.indirect.number));
}
@@ -489,6 +490,44 @@ _pdfioArrayGetValue(pdfio_array_t *a, // I - Array
}
//
// '_pdfioArrayRead()' - Read an array from a file.
//
// At this point the initial "[" has been seen...
//
pdfio_array_t * // O - New array
_pdfioArrayRead(pdfio_file_t *pdf) // I - PDF file
{
pdfio_array_t *array; // New array
char token[8192]; // Token from file
_pdfio_value_t value; // Value
// Create an array...
array = pdfioArrayCreate(pdf);
// Read until we get "]" to end the array...
while (_pdfioFileGetToken(pdf, token, sizeof(token)))
{
if (!strcmp(token, "]"))
{
// End of array...
return (array);
}
// Push the token and decode the value...
_pdfioFilePushToken(pdf, token);
if (!_pdfioValueRead(pdf, &value))
break;
append_value(array, &value);
}
return (NULL);
}
//
// '_pdfioArrayWrite()' - Write an array to a PDF file.
//