diff options
Diffstat (limited to 'macros/luatex/latex/lua-ul')
| -rw-r--r-- | macros/luatex/latex/lua-ul/lua-ul.dtx | 55 | ||||
| -rw-r--r-- | macros/luatex/latex/lua-ul/lua-ul.pdf | bin | 93565 -> 95868 bytes |
2 files changed, 49 insertions, 6 deletions
diff --git a/macros/luatex/latex/lua-ul/lua-ul.dtx b/macros/luatex/latex/lua-ul/lua-ul.dtx index b4c33d7b13..14aa2fae0a 100644 --- a/macros/luatex/latex/lua-ul/lua-ul.dtx +++ b/macros/luatex/latex/lua-ul/lua-ul.dtx @@ -335,9 +335,11 @@ local set_lua = token.set_lua local scan_keyword = token.scan_keyword local scan_list = token.scan_list local scan_int = token.scan_int +local scan_toks = token.scan_toks local put_next = token.put_next local texerror = tex.error +local functions = lua.get_functions_table() local char_given = token.command_id'char_given' local underlineattrs = {} @@ -355,6 +357,48 @@ local vmode do end local texnest = tex.nest +% \end{macrocode} +% \changes{0.1.0}{2020-07-13}{Ensure that \texttt{\string\everyhbox} doesn't interfere with hlist scanning} +% To avoid influence from \texttt{\string\everyhbox} we reset \texttt{\string\everyhbox} to an empty token list directly before scanning. +% As an added complication, we need to use a name which is guaranteed to be the primitive tokenlist and we +% might have to restore it before reading the actual argument (There might be a reason why \texttt{\string\everyhbox} was sat after all. +% Also we have to ensure that braces swallowed by LuaTeX are balanced, otherwise we get hard to trace errors in alignment contexts. +% \begin{macrocode} +local scan_raw_hlist do + local create = token.create + local lbrace, rbrace = token.new(0x7B, 1), token.new(0x7D, 2) + tex.enableprimitives('luaul@', {'everyhbox'}) + local set_everyhbox do + local set_toks1, set_toks2 = {create'immediateassignment', + create'luaul@everyhbox', lbrace}, + {rbrace, create'relax'} + function set_everyhbox(t) + token.put_next(set_toks2) + token.put_next(t) + token.put_next(set_toks1) + token.scan_token() + end + end + local func = luatexbase.new_luafunction"luaul.restore_everyhbox" + local everyhbox_saved + functions[func] = function() set_everyhbox(everyhbox_saved) end + local toks = {rbrace, -- Housekeeping, only for balance reasons + lbrace, create'the', create'luaul@everyhbox', rbrace, + create'hpack', lbrace, + token.new(func, token.command_id'lua_call')} + function scan_raw_hlist() + assert(token.get_next().command == 1) + put_next(toks) + token.get_next() -- Scan a corresponding brace to keep TeX's brace tracking happy + local saved_toks = scan_toks(false, true) + everyhbox_saved = saved_toks + set_everyhbox{} + local list = scan_list() + set_everyhbox(saved_toks) + return list + end +end + local saved_values = {} local function new_underline_type() for i=1,#underlineattrs do @@ -364,7 +408,7 @@ local function new_underline_type() end local strict_flag = scan_keyword'strict' local over_flag = scan_keyword'over' - local b = todirect(scan_list()) + local b = todirect(scan_raw_hlist()) for i=1,#underlineattrs do tex.attribute[underlineattrs[i]] = saved_values[i] end @@ -457,7 +501,6 @@ local function reset_underline() end tex.attribute[j] = -0x7FFFFFFF end -local functions = lua.get_functions_table() local new_underline_type_func = luatexbase.new_luafunction"luaul.new_underline_type" local set_underline_func = @@ -748,7 +791,7 @@ luatexbase.add_to_callback('vpack_filter', \NeedsTeXFormat{LaTeX2e} \ProvidesPackage {lua-ul} - [2020/03/31 v0.0.4 Underlining and related functionality for LuaTeX] + [2020/07/13 v0.1.0 Underlining and related functionality for LuaTeX] % \fi % Only \LuaLaTeX{} is supported. @@ -762,7 +805,7 @@ luatexbase.add_to_callback('vpack_filter', \directlua{require'lua-ul'} \RequirePackage{xparse} % \end{macrocode} -% We support some options. Especially \verb+minimal+ will disable the predefined commands \verb+\underLine+ and \verb+\strikeThrough+ and allow you to define similar commands with your custom settings instead, \verb+soul+ tries to replicate names of the \verb soul package. +% We support some options. Especially \verb+minimal+ will disable the predefined commands \verb+\underLine+ and \verb+\strikeThrough+ and allow you to define similar commands with your custom settings instead, \verb+soul+ tries to replicate names of the \verb+soul+ package. % \begin{macrocode} \newif\ifluaul@predefined \newif\ifluaul@soulnames @@ -802,7 +845,7 @@ luatexbase.add_to_callback('vpack_filter', \expandafter\luaul@maybedefineuse \expanded{{\csstring#2@@#3}}% {\LuaULSetUnderline - \LuaULNewUnderlineType#1\hbox{#4\hskip0pt}% + \LuaULNewUnderlineType#1{#4\hskip0pt}% }}% } \ifluaul@predefined @@ -818,7 +861,7 @@ luatexbase.add_to_callback('vpack_filter', \def\luaul@@setcolor\xcolor@#1#2{} \newcommand\luaul@setcolor[1]{% \ifx\XC@getcolor\undefined - \def\luaul@highlight@currentcolor{#1} + \def\luaul@highlight@currentcolor{#1}% \else \begingroup \XC@getcolor{#1}\luaul@tmpcolor diff --git a/macros/luatex/latex/lua-ul/lua-ul.pdf b/macros/luatex/latex/lua-ul/lua-ul.pdf Binary files differindex 66d1f8551e..326d8a612c 100644 --- a/macros/luatex/latex/lua-ul/lua-ul.pdf +++ b/macros/luatex/latex/lua-ul/lua-ul.pdf |