diff options
Diffstat (limited to 'tex/context/base/mkiv/lxml-css.lua')
| -rw-r--r-- | tex/context/base/mkiv/lxml-css.lua | 135 |
1 files changed, 116 insertions, 19 deletions
diff --git a/tex/context/base/mkiv/lxml-css.lua b/tex/context/base/mkiv/lxml-css.lua index 1787c53df..8d6c42409 100644 --- a/tex/context/base/mkiv/lxml-css.lua +++ b/tex/context/base/mkiv/lxml-css.lua @@ -6,7 +6,7 @@ if not modules then modules = { } end modules ['lxml-css'] = { license = "see context related readme files" } -local tonumber, rawset, type = tonumber, rawset, type +local tonumber, rawset, type, select = tonumber, rawset, type, select local lower, format, find, gmatch = string.lower, string.format, string.find, string.gmatch local topattern, is_empty = string.topattern, string.is_empty local P, S, C, R, Cb, Cg, Carg, Ct, Cc, Cf, Cs = lpeg.P, lpeg.S, lpeg.C, lpeg.R, lpeg.Cb, lpeg.Cg, lpeg.Carg, lpeg.Ct, lpeg.Cc, lpeg.Cf, lpeg.Cs @@ -118,24 +118,33 @@ css.padding = padding -- print(padding("0",pixel,hsize,exheight,emwidth)) --- local currentfont = font.current --- local texget = tex.get --- local hashes = fonts.hashes --- local quads = hashes.quads --- local xheights = hashes.xheights --- --- local function padding(str) --- local font = currentfont() --- local exheight = xheights[font] --- local emwidth = quads[font] --- local hsize = texget("hsize")/100 --- local pixel = emwidth/100 --- return padding(str,pixel,hsize,exheight,emwidth) --- end --- --- function css.simplepadding(str) --- context("%ssp",padding(str,pixel,hsize,exheight,emwidth)) --- end +local context = context + +if context then + + local currentfont = font.current + local texget = tex.get + local hashes = fonts.hashes + local quads = hashes.quads + local xheights = hashes.xheights + + local function todimension(str) + local font = currentfont() + local exheight = xheights[font] + local emwidth = quads[font] + local hsize = texget("hsize")/100 + local pixel = emwidth/100 + return dimension(str,pixel,hsize,exheight,emwidth) + end + + css.todimension = todimension + + function context.cssdimension(str) + -- context("%ssp",todimension(str)) + context(todimension(str) .. "sp") + end + +end local pattern = Cf( Ct("") * ( Cg( @@ -993,3 +1002,91 @@ interfaces.implement { actions = css.mappedstylevalue, arguments = "3 strings", } + +-- more (for mm) + +local containsws = string.containsws +local classsplitter = lpeg.tsplitat(whitespace^1) + +function xml.functions.classes(e,class) -- cache + if class then + local at = e.at + local data = at[class] or at.class + if data then + return lpegmatch(classsplitter,data) or { } + end + end + return { } +end + +-- function xml.functions.hasclass(e,class,name) +-- if class then +-- local at = e.at +-- local data = at[class] or at.class +-- if data then +-- return data == name or containsws(data,name) +-- end +-- end +-- return false +-- end +-- +-- function xml.expressions.hasclass(attribute,name) +-- if attribute then +-- return attribute == name or containsws(attribute,name) +-- end +-- return false +-- end + +function xml.functions.hasclass(e,class,name,more,...) + if class and name then + local at = e.at + local data = at[class] or at.class + if not data or data == "" then + return false + end + if data == name or data == more then + return true + end + if containsws(data,name) then + return true + end + if not more then + return false + end + if containsws(data,more) then + return true + end + for i=1,select("#",...) do + if containsws(data,select(i,...)) then + return true + end + end + end + return false +end + +function xml.expressions.hasclass(data,name,more,...) + if data then + if not data or data == "" then + return false + end + if data == name or data == more then + return true + end + if containsws(data,name) then + return true + end + if not more then + return false + end + if containsws(data,more) then + return true + end + for i=1,select("#",...) do + if containsws(data,select(i,...)) then + return true + end + end + end + return false +end |