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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% wordcloud %%
%% drawing wordclouds %%
%% with METAPOST and Lua %%
%% chupin@ceremade.dauphine.fr %%
%% Version 0.1 (aout 2023) %%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% This work may be distributed and/or modified under the conditions of
% the LaTeX Project Public License, either version 1.3c of this license
% or (at your option) any later version. The latest version of this
% license is in http://www.latex-project.org/lppl.txt
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\NeedsTeXFormat{LaTeX2e}%
\def\PackageName{wordcloud}%
\def\fileversion{v0.1}%
\def\filedate{2023/07/26}%
\ProvidesPackage{wordcloud}[\filedate\space\fileversion]%
%
% package to load
\RequirePackage{luamplib}%
%
% load the lua code
\directlua{require("wordcloud.lua")}%
\ExplSyntaxOn
% variable globale
\tl_new:N \g__wc_wordcloud_scale_tl
\tl_new:N \g__wc_wordcloud_rotate_tl
\tl_new:N \g__wc_wordcloud_margin_tl
% definitions des clés/valeurs pour la commande \wordcloud
\keys_define:nn{wc/wordcloud}{%
scale .tl_gset:N = \g__wc_wordcloud_scale_tl,
scale .value_required:n = true,
rotate .tl_gset:N = \g__wc_wordcloud_rotate_tl,
rotate .value_required:n = true,
margin .tl_gset:N = \g__wc_wordcloud_margin_tl,
margin .value_required:n = true,
usecolor .bool_set:N = \g__wc_wordcloud_usecolor_bool,
colors .clist_set:N = \g__wc_wordcloud_colors_clist, % list of LaTeX colors
colors .value_required:n = true,
% usecolor .default:n = true,
}
% local variable to stock metapost colors list
\tl_new:N \l_colors_list_tl%
% function to build a wordcloud from a list of the form :
% (word1,weight1);(word2,weight2);etc.
\NewDocumentCommand\wordcloud{ o m }{%
% mandatory argument : list (word1,weight1);(word2,weight2);etc.
% optional arguments :
% scale=<value> (default 1)
% rotation=<value> (default 0)
% margin=<value> (default 0.3pt)
% usecolor=true/false (default false)
% colors={color1,color2,etc}
% pour les clés à valeur par défaut
\keys_set:nn { wc/wordcloud } { scale=1 } %
\keys_set:nn { wc/wordcloud } { rotate=0 } %
\keys_set:nn { wc/wordcloud } { margin=0.3pt } %
\keys_set:nn { wc/wordcloud } { colors={} } %
\keys_set:nn { wc/wordcloud } { usecolor=false } %
\tl_clear:N \l_colors_list_tl%
\IfNoValueF {#1}
{
\keys_set:nn { wc/wordcloud } { #1 }
}
% parse the list to build a list of rgb colors for metapost code
\clist_map_variable:NNn \g__wc_wordcloud_colors_clist \l_onecolor_tl {%
\extractcolorspecs{\tl_use:N
\l_onecolor_tl}{\wc_onecolor_type}{\wc_onecolor_values}
% get the type and values of color (see xcolor doc)
\convertcolorspec{\wc_onecolor_type}{\wc_onecolor_values}{rgb}\wc_rgb_values
% convert to rgb (see xcolor loc)
\tl_gput_right:Nx \l_colors_list_tl {(\wc_rgb_values);} % add value with
%parenthesis
}%
%\show {coucous}
\directlua{%
%tex.sprint("test")
wc_build_wordcloud("#2",\tl_use:N \g__wc_wordcloud_rotate_tl,\tl_use:N \g__wc_wordcloud_scale_tl,"\tl_use:N \g__wc_wordcloud_margin_tl",\bool_if:NTF \g__wc_wordcloud_usecolor_bool{"true"}{"false"},"\tl_use:N \l_colors_list_tl")
}%
}
% function to build a wordcloud from a text file :
\NewDocumentCommand\wordcloudFile{ o m m}{%
% two mandatory arguments : name of the file and number of words for the
% wordcloud
% optional arguments :
% scale=<value> (default 1)
% rotation=<value> (default 0)
% margin=<value> (default 0.3pt)
% usecolor=true/false (default false)
% colors={color1,color2,etc}
% pour les clés à valeur par défaut
\keys_set:nn { wc/wordcloud } { scale=1 } %
\keys_set:nn { wc/wordcloud } { rotate=0 } %
\keys_set:nn { wc/wordcloud } { margin=0.3pt } %
\keys_set:nn { wc/wordcloud } { colors={} } %
\keys_set:nn { wc/wordcloud } { usecolor=false } %
\tl_clear:N \l_colors_list_tl%
\IfNoValueF {#1}
{
\keys_set:nn { wc/wordcloud } { #1 }
}
% parse the list to build a list of rgb colors for metapost code
\clist_map_variable:NNn \g__wc_wordcloud_colors_clist \l_onecolor_tl {%
\extractcolorspecs{\tl_use:N
\l_onecolor_tl}{\wc_onecolor_type}{\wc_onecolor_values}
% get the type and values of color (see xcolor doc)
\convertcolorspec{\wc_onecolor_type}{\wc_onecolor_values}{rgb}\wc_rgb_values
% convert to rgb (see xcolor loc)
\tl_gput_right:Nx \l_colors_list_tl {(\wc_rgb_values);} % add value with
%parenthesis
}%
%\show {coucous}
\directlua{%
wc_build_wordcloud_file("#2",#3,\tl_use:N \g__wc_wordcloud_rotate_tl,\tl_use:N \g__wc_wordcloud_scale_tl,"\tl_use:N \g__wc_wordcloud_margin_tl",\bool_if:NTF \g__wc_wordcloud_usecolor_bool{"true"}{"false"},"\tl_use:N \l_colors_list_tl")
}%
}
% function to add words to ignor when a wordcloud is build from a text file
\NewDocumentCommand\wordcloudIgnoreWords{m}{%
% mandatory argument : list of words separated by commas
% word1, word2, word3, etc.
\directlua{%
tab=wc_string_to_tab("#1")
wc_add_ignored_words(tab)
}%
}
\ExplSyntaxOff
|