mirror of
https://github.com/unidoc/unipdf.git
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61ff51916a
* Fix wrong symbol checks used for the double quote content stream operator * Fix text extraction parameter check for the double quote operator
91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
/*
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* This file is subject to the terms and conditions defined in
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* file 'LICENSE.md', which is part of this source code package.
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*/
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package contentstream
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// isValidOperand returns true if `operand` is a valid PDF contentstream operand.
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func isValidOperand(operand string) bool {
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_, has := validOperands[operand]
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return has
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}
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// List of valid PDF contentstream operands in a map format for quick lookups.
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// (Table A.1 PDF32000_2008).
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var validOperands = map[string]struct{}{
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"b": struct{}{},
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"B": struct{}{},
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"b*": struct{}{},
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"B*": struct{}{},
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"BDC": struct{}{},
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"BI": struct{}{},
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"BMC": struct{}{},
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"BT": struct{}{},
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"BX": struct{}{},
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"c": struct{}{},
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"cm": struct{}{},
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"CS": struct{}{},
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"cs": struct{}{},
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"d": struct{}{},
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"d0": struct{}{},
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"d1": struct{}{},
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"Do": struct{}{},
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"DP": struct{}{},
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"EI": struct{}{},
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"EMC": struct{}{},
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"ET": struct{}{},
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"EX": struct{}{},
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"f": struct{}{},
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"F": struct{}{},
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"f*": struct{}{},
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"G": struct{}{},
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"g": struct{}{},
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"gs": struct{}{},
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"h": struct{}{},
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"i": struct{}{},
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"ID": struct{}{},
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"j": struct{}{},
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"J": struct{}{},
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"K": struct{}{},
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"k": struct{}{},
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"l": struct{}{},
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"m": struct{}{},
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"M": struct{}{},
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"MP": struct{}{},
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"n": struct{}{},
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"q": struct{}{},
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"Q": struct{}{},
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"re": struct{}{},
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"RG": struct{}{},
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"rg": struct{}{},
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"ri": struct{}{},
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"s": struct{}{},
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"S": struct{}{},
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"SC": struct{}{},
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"sc": struct{}{},
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"SCN": struct{}{},
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"scn": struct{}{},
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"sh": struct{}{},
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"T*": struct{}{},
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"Tc": struct{}{},
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"Td": struct{}{},
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"TD": struct{}{},
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"Tf": struct{}{},
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"Tj": struct{}{},
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"TJ": struct{}{},
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"TL": struct{}{},
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"Tm": struct{}{},
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"Tr": struct{}{},
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"Ts": struct{}{},
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"Tw": struct{}{},
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"Tz": struct{}{},
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"v": struct{}{},
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"w": struct{}{},
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"W": struct{}{},
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"W*": struct{}{},
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"y": struct{}{},
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`'`: struct{}{},
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`"`: struct{}{},
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}
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