Ever wonder why no one ever says "Fully ANSI-compliant"?

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kparadine
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Joined: Mon Mar 21, 2011 4:08 pm

Ever wonder why no one ever says "Fully ANSI-compliant"?

Post by kparadine » Wed Mar 30, 2011 10:58 am

This is the definition for "Delete character" from said spec:

DCH - DELETE CHARACTER
Notation: (Pn)
Representation: CSI Pn 05/00
Parameter default value: Pn = 1
If the DEVICE COMPONENT SELECT MODE (DCSM) is set to PRESENTATION, DCH causes the contents of the active presentation position and, depending on the setting of the CHARACTER EDITING MODE (HEM), the contents of the n-1 preceding or following character positions to be removed from the presentation component, where n equals the value of Pn. The resulting gap is closed by shifting the contents of the adjacent character positions towards the active presentation position. At the other end of the shifted part, n character positions are put into the erased state.
The extent of the shifted part is established by SELECT EDITING EXTENT (SEE).
The effect of DCH on the start or end of a selected area, the start or end of a qualified area, or a tabulation stop in the shifted part is not defined by this Standard.
If the DEVICE COMPONENT SELECT MODE (DCSM) is set to DATA, DCH causes the contents of the active data position and, depending on the setting of the CHARACTER EDITING MODE (HEM), the contents of the n-1 preceding or following character positions to be removed from the data component, where n equals the value of Pn. The resulting gap is closed by shifting the contents of the adjacent character positions towards the active data position. At the other end of the shifted part, n character positions are put into the erased state.

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