єjwQ $UdZdZdZddlZddlZddlZddlZddlZddlm Z ddl m Z m Z ddl m Z ddlmZdd lmZdd lmZmZmZmZmZejdd d krdd lmZndd lmZejdkrddlmZnddlmZddlmZmZmZeee e e fee e e fee e e ffZ!ee"d<ee e e e e e fZ#ee"d<eeZ$ee%Z&ee'e$fZ(dee'dee fdZ)de de'fdZ*de'de'de'fdZ+dZ,d-e,Z.de.zdzZ/dVd e$d!ee0de%fd"Z1d e&de%fd#Z2d e$de3fd$Z4d%e%de3fd&Z5d e$ddfd'Z6d e$d(ee%de%fd)Z7d e&d*e0de%fd+Z8d e$de%fd,Z9d-e!d.e!de!fd/Z:d e$ddfd0Z;ed.e'de0fd1Zd:e'd;e'dZ@d?e'dhours remainderminutessigns r5format_iso8824_daterGos{{+,,H y8!!!F002233 !#m"4"4d;;yr/#q(1ssct7U77777777 Oheader1header2c6d}g}||vr(|||||vr(|||t|dkrtd|d|d|t |S)N)z%PDF-1.3z%PDF-1.4z%PDF-1.5z%PDF-1.6z%PDF-1.7z%PDF-2.0rzNeither z nor z are proper headers)appendindexr-r0r+)rIrJversionspdf_header_indicess r5_get_max_pdf_version_headerrPsH(;!!(.."9"9:::(;!!(.."9"9::: !#TRGRRGRRRSSS C*++ ,,rH)     rH[]streammaxcharscd} |d}|s|sn||z }t||krnF|S)a< Read non-whitespace characters and return them. Stops upon encountering whitespace or when maxchars is reached. 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