Difficult or Non-Decipherable Characters and Omissions

Difficult to read characters or strings (e. g. due to physical deficiencies of the original, weak pressure) are enclosed with the tag <supplied>:

<supplied>[character or string]</supplied>

If the reading is uncertain for the supplemented string, a @cert attribute in the supplied element can be used to display the degree of certainty for the supplement. The level of certainty is displayed as follows:

Expression	Meaning
`<supplied>`	Certainty/safe reading (for example, the character/string is still weakly printed, thus ensuring that the reading is assured)
`<supplied cert="high">`	high certainty of the addition (e. g. the character/string is no longer recognizable, but the reading results from the context and is thus secured)
`<supplied cert="low">`	low certainty of supplementation/uncertain reading (e. g. the character/string is no longer recognizable and has been reconstructed; other reconstructions are possible)

If the characters are not recognizable and cannot be reconstructed, the tag <gap/> is set to indicate the gap. Within the <gap> tag, the attributes @unit, @quantity and @reason can be used to display how many characters the gap contains, as well as the reason for the missing part:

<gap unit="chars" quantity="[number of characters missing]" reason="[reason for the defect]"/>

The @unit attribute can have the following values:

`chars`	characters
`lines`	lines
`pages`	pages
`words`	words

The @reason attribute can have the following values:

`lost`	damage
`illegible`	illegible
`fm`	foreign language material
`insignificant`	as unimportant for the corpus classified text

Handling Omissions/Gaps