% !TeX root = ../easyfloats.tex

\usepackage{fontawesome}
\usepackage{amsmath}


% ------- version -------

\newcommand\changesinversion[1]{\CheckVersion#1\relax\subsection[#1]{\FormatTag{#1}}}

\newcommand\GitlabUrl{https://gitlab.com/erzo/latex-easyfloats/-}
\newcommand\FormatTag[1]{#1\href{\GitlabUrl/tags/#1}{\,$^\text{\normalfont\faGitlab}$}}
\def\CheckVersion#1#2\relax{%
	\ifx #1v%
		% ok
	\else
		\PackageWarning{change log}{Version number #1#2 is missing the v in front}{}%
	\fi
}


% ------- changelog environment -------

\ExplSyntaxOn
\bool_new:N \l_changelog_in_list_bool

\cs_new:Nn \changelog_item: {
	\bool_if:NF \l_changelog_in_list_bool {
		\bool_set_true:N \l_changelog_in_list_bool
		\begin{itemize}
	}
	\item
}

\cs_new:Nn \changelog_end: {
	\bool_if:NT \l_changelog_in_list_bool {
		\end{itemize}
		\bool_set_false:N \l_changelog_in_list_bool
	}
}

\cctab_begin:N \c_code_cctab
\char_set_catcode_active:N \^^M%
\newenvironment{changelog}{%
	\catcode`\^^M=\active%
	\def^^M##1{%
		\ifx ##1-%
			\exp_after:wN \use_i:nn%
		\else
			\exp_after:wN \use_ii:nn%
		\fi%
			{\changelog_item:}%
		{\ifx ##1^^M%
			\exp_after:wN \use_i:nn%
		\else
			\exp_after:wN \use_ii:nn%
		\fi%
			{\changelog_end:}%
			{~##1}%
		}
	}%
	\cs_new:Npn\commit##1^^M{\unskip\href{\GitlabUrl/commit/##1}{\,$^\text{\faGitlab}$}^^M}%
}{%
	\changelog_end:
}%
\cctab_end:%
\ExplSyntaxOff