ToC | DocOverview | CGDoc | RelNotes | Index | PermutedIndex
| Allegro CL

| ANSI Common Lisp 22 Printer 22.4 Dictionary of Printer
22.4.6 pprint-indent | Function
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. 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 Allegro CL Implementation Details: None.

© Franz Inc. All Rights Reserved - File last updated 2022-07-25