Syntax:
pprint-indent relative-to n &optional stream => nil
Arguments and Values:
relative-to---either :block or :current.
n---a real.
stream---an output stream designator. The default is standard output.
Description:
pprint-indent specifies the indentation to use in a logical block on stream. If stream is a pretty printing stream and the value of *print-pretty* is true, pprint-indent sets the indentation in the innermost dynamically enclosing logical block; otherwise, pprint-indent has no effect.
N specifies the indentation in ems. If relative-to is :block, the indentation is set to the horizontal position of the first character in the dynamically current logical block plus n ems. If relative-to is :current, the indentation is set to the current output position plus n ems. (For robustness in the face of variable-width fonts, it is advisable to use :current with an n of zero whenever possible.)
N can be negative; however, the total indentation cannot be moved left of the beginning of the line or left of the end of the rightmost per-line prefix---an attempt to move beyond one of these limits is treated the same as an attempt to move to that limit. Changes in indentation caused by pprint-indent do not take effect until after the next line break. In addition, in miser mode all calls to pprint-indent are ignored, forcing the lines corresponding to the logical block to line up under the first character in the block.
Examples: None.
Side Effects: None.
Affected By: None.
Exceptional Situations:
An error is signaled if relative-to is any object other than :block or :current.
See Also:
Section 22.3.5.3 (Tilde I: Indent)
Notes: None.
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