diff options
Diffstat (limited to 'tex/context/base/mkiv/lxml-css.lua')
| -rw-r--r-- | tex/context/base/mkiv/lxml-css.lua | 152 |
1 files changed, 108 insertions, 44 deletions
diff --git a/tex/context/base/mkiv/lxml-css.lua b/tex/context/base/mkiv/lxml-css.lua index 8f7f19e84..96dc626f7 100644 --- a/tex/context/base/mkiv/lxml-css.lua +++ b/tex/context/base/mkiv/lxml-css.lua @@ -146,52 +146,116 @@ if context then end -local p_digit = lpeg.patterns.digit - -local pattern = Cf( Ct("") * ( - Cg( - Cc("style") * ( - C("italic") - + C("oblique") - + C("slanted") / "oblique" - ) - + Cc("variant") * ( - (C("smallcaps") + C("caps")) / "small-caps" - ) - + Cc("weight") * ( - C("bold") - ) - + Cc("family") * ( - (C("mono") + C("type")) / "monospace" -- just ignore the "space(d)" - + (C("sansserif") + C("sans")) / "sans-serif" -- match before serif - + C("serif") - ) - + Cc("size") * Ct ( - (S("+-")^0 * (p_digit^0 * P(".") * p_digit^1 + p_digit^1 * P(".") + p_digit^1)) / tonumber - * C(P("p") * S("txc") + P("e") * S("xm") + S("mc") * P("m") + P("in") + P("%")) + +do + + local p_digit = lpegpatterns.digit + local p_unquoted = Cs(lpegpatterns.unquoted) + local p_size = (S("+-")^0 * (p_digit^0 * P(".") * p_digit^1 + p_digit^1 * P(".") + p_digit^1)) / tonumber + * C(P("p") * S("txc") + P("e") * S("xm") + S("mc") * P("m") + P("in") + P("%")) + + local pattern = Cf( Ct("") * ( + Cg( + Cc("style") * ( + C("italic") + + C("oblique") + + C("slanted") / "oblique" + ) + + Cc("variant") * ( + (C("smallcaps") + C("caps")) / "small-caps" + ) + + Cc("weight") * ( + C("bold") + ) + + Cc("family") * ( + (C("mono") + C("type")) / "monospace" -- just ignore the "space(d)" + + (C("sansserif") + C("sans")) / "sans-serif" -- match before serif + + C("serif") + ) + + Cc("size") * Ct(p_size) ) - ) ---+ P("\\") * ( --- P("bf") * ( Cg ( Cc("weight") * Cc("bold") ) ) --- + P("bi") * ( Cg ( Cc("weight") * Cc("bold") ) --- * Cg ( Cc("style") * Cc("italic") ) ) --- + P("bs") * ( Cg ( Cc("weight") * Cc("bold") ) --- * Cg ( Cc("style") * Cc("oblique") ) ) --- + P("it") * ( Cg ( Cc("style") * Cc("italic") ) ) --- + P("sl") * ( Cg ( Cc("style") * Cc("oblique") ) ) --- + P("sc") * ( Cg ( Cc("variant") * Cc("small-caps") ) ) --- + P("tt") * ( Cg ( Cc("family") * Cc("monospace") ) ) ---) - + P(1) -)^0 , rawset) - -function css.fontspecification(str) - return str and lpegmatch(pattern,lower(str)) -end + + P(1) + )^0 , rawset) + + function css.fontspecification(str) + return str and lpegmatch(pattern,lower(str)) + end + + -- These map onto context! + + function css.style(str) + if str and str ~= "" then + str = lower(str) + if str == "italic" then + return "italic" + elseif str == "slanted" or str == "oblique" then + return "slanted" + end + end + return "normal" + end + + function css.variant(str) -- will change to a feature + if str and str ~= "" then + str = lower(str) + if str == "small-caps" or str == "caps" or str == "smallcaps" then + return "caps" + end + end + return "normal" + end + + function css.weight(str) + if str and str ~= "" then + str = lower(str) + if str == "bold" then + return "bold" + end + end + return "normal" + end + + function css.family(str) + if str and str ~= "" then + str = lower(str) + if str == "mono" or str == "type" or str == "monospace" then + return "mono" + elseif str == "sansserif" or str == "sans" then + return "sans" + elseif str == "serif" then + return "serif" + else + -- what if multiple ... + return lpegmatch(p_unquoted,str) or str + end + end + end + + function css.size(str,factors) + local size, unit + if type(str) == "table" then + size, unit = str[1], str[2] + elseif str and str ~= "" then + size, unit = lpegmatch(p_size,lower(str)) + end + if size and unit then + if factors then + return (factors[unit] or 1) * size + else + return size, unit + end + end + end + + function css.colorspecification(str) + if str and str ~= "" then + local c = attributes.colors.values[tonumber(str)] + if c then + return format("rgb(%s%%,%s%%,%s%%)",c[3]*100,c[4]*100,c[5]*100) + end + end + end -function css.colorspecification(str) - local c = str and attributes.colors.values[tonumber(str)] - return c and format("rgb(%s%%,%s%%,%s%%)",c[3]*100,c[4]*100,c[5]*100) end -- The following might be handy. It hooks into the normal parser as <selector> |