Add a second check to be sure a string is hexadecimal before applying the pack() function. This ensures we avoid illegal hex digit and resolves https://github.com/smalot/pdfparser/issues/499
Modify the regexp to search for escaped octal codes from one to three digits, and exclude escaped backslashes. In sections of text that aren't escaped octal codes, un-escape backslashes and parentheses as described in PDF Reference 1.7 Section 3.2 Table 3.2. This resolves https://github.com/smalot/pdfparser/issues/470
Adjust the unit test testDecodeOctal() to escape the valid octal code \\1 so that the output matches the existing expected value AB \199.
Add a second check to be sure a string is hexadecimal before applying the
pack()function. This ensures we avoidillegal hex digitand resolves https://github.com/smalot/pdfparser/issues/499PdfParser currently only decodes triple digit escaped octal codes, when single, double and triple digits are all allowed. See PDF Reference 1.7 Section 3.2 Objects (page 55): https://ia801001.us.archive.org/1/items/pdf1.7/pdf_reference_1-7.pdf
Modify the regexp to search for escaped octal codes from one to three digits, and exclude escaped backslashes. In sections of text that aren't escaped octal codes, un-escape backslashes and parentheses as described in PDF Reference 1.7 Section 3.2 Table 3.2. This resolves https://github.com/smalot/pdfparser/issues/470
Adjust the unit test
testDecodeOctal()to escape the valid octal code\\1so that the output matches the existing expected valueAB \199.