mirror of https://github.com/libsdl-org/SDL
78 lines
2.7 KiB
Lua
78 lines
2.7 KiB
Lua
-- This code adapted from https://gitlab.com/saalen/highlight/-/wikis/Plug-Ins
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-- first add a description of what the plug-in does
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Description="Add wiki.libsdl.org reference links to HTML, LaTeX or RTF output"
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-- define the plugin categories (ie. supported output formats; languages)
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Categories = { "c", "c++" }
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-- the syntaxUpdate function contains code related to syntax recognition
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function syntaxUpdate(desc)
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-- if the current file is not C/C++ file we exit
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if desc~="C and C++" then
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return
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end
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-- this function returns a qt-project reference link of the given token
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function getURL(token)
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-- generate the URL
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url='https://wiki.libsdl.org/SDL3/'.. token
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-- embed the URL in a hyperlink according to the output format
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-- first HTML, then LaTeX and RTF
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if (HL_OUTPUT== HL_FORMAT_HTML or HL_OUTPUT == HL_FORMAT_XHTML) then
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return '<a class="hl" target="new" href="'
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.. url .. '">'.. token .. '</a>'
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elseif (HL_OUTPUT == HL_FORMAT_LATEX) then
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return '\\href{'..url..'}{'..token..'}'
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elseif (HL_OUTPUT == HL_FORMAT_RTF) then
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return '{{\\field{\\*\\fldinst HYPERLINK "'
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..url..'" }{\\fldrslt\\ul\\ulc0 '..token..'}}}'
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end
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end
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-- the Decorate function will be invoked for every recognized token
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function Decorate(token, state)
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-- we are only interested in keywords, preprocessor or default items
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if (state ~= HL_STANDARD and state ~= HL_KEYWORD and
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state ~=HL_PREPROC) then
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return
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end
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-- SDL keywords start with SDL_
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-- if this pattern applies to the token, we return the URL
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-- if we return nothing, the token is outputted as is
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if string.find(token, "SDL_")==1 then
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return getURL(token)
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end
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end
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end
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-- the themeUpdate function contains code related to the theme
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function themeUpdate(desc)
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-- the Injections table can be used to add style information to the theme
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-- HTML: we add additional CSS style information to beautify hyperlinks,
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-- they should have the same color as their surrounding tags
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if (HL_OUTPUT == HL_FORMAT_HTML or HL_OUTPUT == HL_FORMAT_XHTML) then
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Injections[#Injections+1]=
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"a.hl, a.hl:visited {color:inherit;font-weight:inherit;text-decoration:none}"
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-- LaTeX: hyperlinks require the hyperref package, so we add this here
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-- the colorlinks and pdfborderstyle options remove ugly boxes in the output
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elseif (HL_OUTPUT==HL_FORMAT_LATEX) then
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Injections[#Injections+1]=
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"\\usepackage[colorlinks=false, pdfborderstyle={/S/U/W 1}]{hyperref}"
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end
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end
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-- let highlight load the chunks
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Plugins={
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{ Type="lang", Chunk=syntaxUpdate },
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{ Type="theme", Chunk=themeUpdate },
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}
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