1:- module(onepointfour_dict_pp_string_stuff, 2 [ 3 max_line_width/2 % max_line_width(+Lines,-MaxLineWidth) 4 ,make_tag_line/6 % make_tag_line(+Tag,+MaxLineWidth,+PadLeft,+PadRight,+SettingsDict,-Result) 5 ,make_bordery_lines/5 % make_bordery_lines(+MaxLineWidth,+PadLeft,+PadRight,-HorizontalBorderResult,-BackgroundResult) 6 ,make_background_line_for_padding/4 % make_background_line_for_padding(+MaxLineWIdth,+PadLeft,+PadRight,-Result) 7 ]). 8 9:- use_module(library('onepointfour_basics/checks.pl')). 10:- use_module(library('onepointfour_basics/stringy_concat.pl')). 11:- use_module(library('onepointfour_basics/stringy_justify.pl')). 12:- use_module(library('onepointfour_basics/space_stringy.pl')). 13:- use_module(library('onepointfour_basics/dict_settings.pl')). 14 15/* MIT License Follows (https://opensource.org/licenses/MIT) 16 17 Copyright 2021 David Tonhofer <ronerycoder@gluino.name> 18 19 Permission is hereby granted, free of charge, to any person obtaining 20 a copy of this software and associated documentation files 21 (the "Software"), to deal in the Software without restriction, 22 including without limitation the rights to use, copy, modify, merge, 23 publish, distribute, sublicense, and/or sell copies of the Software, 24 and to permit persons to whom the Software is furnished to do so, 25 subject to the following conditions: 26 27 The above copyright notice and this permission notice shall be 28 included in all copies or substantial portions of the Software. 29 30 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 31 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 32 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 33 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 34 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 35 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 36 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 37*/
55max_line_width(Lines,MaxLineWidth) :- 56 foldl(foldl_mlw,Lines,0,MaxLineWidth). 57 58foldl_mlw(Line,FromLeft,ToRight) :- 59 string_length(Line,LineWidth), 60 ToRight is max(FromLeft,LineWidth).
Explainer for the various values:
|<-----PadLeft--->|<---- MaxLineWidth ---->|<----PadRight----------->| | |left_justified_tag | | | | right_justified_tag| | | | center_justified_tag | | |full_left_justified_tag | | | | | full_right_justified_tag| | | full_center_justified_tag |
SettingsDict may carry:
justify_tag : left,right,center , default: center justify_tag_full : true, false , default: true
90make_tag_line(Tag,MaxLineWidth,PadLeft,PadRight,SettingsDict,Result) :- 91 get_setting(SettingsDict,justify_tag,How,center), 92 get_setting(SettingsDict,justify_tag_full,Full,true), 93 assertion(check_that(How ,[hard(member(left,right,center))])), 94 assertion(check_that(Full,[hard(boolean)])), 95 preprocess_tag(Tag,TagString), 96 make_tag_line_2(Full,How,TagString,MaxLineWidth,PadLeft,PadRight,Result). 97 98preprocess_tag(Tag,TagString) :- 99 atom(Tag) 100 -> 101 atom_string(Tag,TagString) 102 ; 103 string(Tag) 104 -> 105 Tag=TagString 106 ; 107 integer(Tag) 108 -> 109 format(string(TagString),"~d",[Tag]) 110 ; 111 format(string(TagString),"~q",[Tag]).
118make_tag_line_2(true,How,TagString,MaxLineWidth,PadLeft,PadRight,Result) :- 119 FullWidth is PadLeft + MaxLineWidth + PadRight, 120 justify_how(How,FullWidth,TagString,Result,string). % TODO in all cases whitespace over FullWidth, maybe unwanted? 121 122make_tag_line_2(false,How,TagString,MaxLineWidth,PadLeft,_PadRight,Result) :- 123 justify_how(How,MaxLineWidth,TagString,M,string), % TODO in all cases whitespace over MaxLineWidth, maybe unwanted? 124 space_stringy(PadLeft,LS,string), % PadLeft may be 0. 125 stringy_concat([LS,M],Result,string). % Don't bother to append a string of "PadRight" spaces. (should we?)
131make_bordery_lines(MaxLineWidth,PadLeft,PadRight,HorizontalBorderResult,BackgroundResult) :- 132 FullWidth is PadLeft + MaxLineWidth + PadRight, 133 make_horizontal_border_line(FullWidth,HorizontalBorderResult), % create "+-----+" line to put at the top and bottom 134 make_background_line_with_border(FullWidth,BackgroundResult). % create "| |" line to use as background
143make_horizontal_border_line(Width,Result) :-
144 length(Chars,Width), % TODO: same as the space_stringy, we need a dash_stringy!
145 maplist(=("-"),Chars), % "Chars" is now "Width" dashes
146 atomics_to_string(Chars,S), % Fuse into a string
147 stringy_concat(["+",S,"+"],Result,string).
155make_background_line_with_border(Width,Result) :-
156 space_stringy(Width,S,string),
157 stringy_concat(["|",S,"|"],Result,string).
163make_background_line_for_padding(MaxLineWidth,PadLeft,PadRight,Result) :-
164 FullWidth is PadLeft + MaxLineWidth + PadRight,
165 space_stringy(FullWidth,Result,string)
dict prettyprinter helper predicates
This module collects a few very simple and very specialized helper predicates dealing with strings in the context of dict prettyprinting, which just add noise to the main module. So they are here, in a separate module.
The homepage for this module is at
https://github.com/dtonhofer/prolog_code/blob/main/unpacked/onepointfour_basics/README_dict_pp.md
*/