diff options
Diffstat (limited to 'metapost/context/base/mp-mlib.mpiv')
| -rw-r--r-- | metapost/context/base/mp-mlib.mpiv | 181 |
1 files changed, 168 insertions, 13 deletions
diff --git a/metapost/context/base/mp-mlib.mpiv b/metapost/context/base/mp-mlib.mpiv index dfb3f7102..9395cac8c 100644 --- a/metapost/context/base/mp-mlib.mpiv +++ b/metapost/context/base/mp-mlib.mpiv @@ -808,7 +808,7 @@ vardef mfun_pair_to_string(expr p) = decimal ypart p enddef ; -vardef mfun_rbgcolor_to_string(expr c) = +vardef mfun_rgbcolor_to_string(expr c) = decimal redpart c & " " & decimal greenpart c & " " & decimal bluepart c @@ -829,18 +829,18 @@ vardef mfun_boolean_to_string(expr b) = if b : "true" else : "false" fi enddef ; -def passvariable(expr key, value) = - special - if numeric value : "1:" & key & "=" & mfun_numeric_to_string(value) - elseif pair value : "4:" & key & "=" & mfun_pair_to_string(value) - elseif rgbcolor value : "5:" & key & "=" & mfun_rgbcolor_to_string(value) - elseif cmykcolor value : "6:" & key & "=" & mfun_cmykcolor_to_string(value) - elseif boolean value : "3:" & key & "=" & mfun_boolean_to_string(value) - elseif path value : "7:" & key & "=" & mfun_path_to_string(value) - elseif transform value : "8:" & key & "=" & mfun_transform_to_string(value) - else : "2:" & key & "=" & value - fi ; -enddef ; +% def passvariable(expr key, value) = +% special +% if numeric value : "1:" & key & "=" & mfun_numeric_to_string(value) +% elseif pair value : "4:" & key & "=" & mfun_pair_to_string(value) +% elseif rgbcolor value : "5:" & key & "=" & mfun_rgbcolor_to_string(value) +% elseif cmykcolor value : "6:" & key & "=" & mfun_cmykcolor_to_string(value) +% elseif boolean value : "3:" & key & "=" & mfun_boolean_to_string(value) +% elseif path value : "7:" & key & "=" & mfun_path_to_string(value) +% elseif transform value : "8:" & key & "=" & mfun_transform_to_string(value) +% else : "2:" & key & "=" & value +% fi ; +% enddef ; vardef tostring(expr value) = if numeric value : mfun_numeric_to_string(value) @@ -866,6 +866,161 @@ vardef mfun_tagged_string(expr value) = fi enddef ; +% amore flexible variant for passing data to context + +vardef mfun_point_to_lua(expr p,i) = + "{" & + decimal xpart (point i of p) & "," & + decimal ypart (point i of p) & "," & + decimal xpart (precontrol i of p) & "," & + decimal ypart (precontrol i of p) & "," & + decimal xpart (postcontrol i of p) & "," & + decimal ypart (postcontrol i of p) + & "}" +enddef ; + +vardef mfun_transform_to_lua(expr t) = + "{" & + decimal xxpart t & "," & % rx + decimal xypart t & "," & % sx + decimal yxpart t & "," & % sy + decimal yypart t & "," & % ry + decimal xpart t & "," & % tx + decimal ypart t % ty + & "}" +enddef ; + +vardef mfun_numeric_to_lua(expr n) = + decimal n +enddef ; + +vardef mfun_pair_to_lua(expr p) = + "{" & + decimal xpart p & "," & + decimal ypart p + & "}" +enddef ; + +vardef mfun_rgbcolor_to_lua(expr c) = + "{" & + decimal redpart c & "," & + decimal greenpart c & "," & + decimal bluepart c + & "}" +enddef ; + +vardef mfun_cmykcolor_to_lua(expr c) = + "{" & + decimal cyanpart c & "," & + decimal magentapart c & "," & + decimal yellowpart c & "," & + decimal blackpart c + & "}" +enddef ; + +vardef mfun_path_to_lua(expr p) = + "{" & + mfun_point_to_lua(p,0) for i=1 upto length(p) : & "," & mfun_point_to_lua(p,i) endfor + & "}" +enddef ; + +vardef mfun_boolean_to_lua(expr b) = + if b : "true" else : "false" fi +enddef ; + +vardef mfun_string_to_lua(expr s) = + "[==[" & s & "]==]" +enddef ; + +def mfun_to_lua(expr key)(expr value)(text t) = + special "metapost.variables['" & key & "']=" & t(value) ; +enddef ; + +def mfun_array_to_lua(expr key)(suffix value)(expr first, last, stp)(text t) = + special + "metapost.variables['" & key & "']={" + for i=first step stp until last : + & t(value[i]) & "," + endfor + & "}" ; +enddef ; + +def passvariable(expr key, value) = + if numeric value : mfun_to_lua(key,value,mfun_numeric_to_lua) + elseif pair value : mfun_to_lua(key,value,mfun_pair_to_lua) + elseif string value : mfun_to_lua(key,value,mfun_string_to_lua) + elseif boolean value : mfun_to_lua(key,value,mfun_boolean_to_lua) + elseif path value : mfun_to_lua(key,value,mfun_path_to_lua) + elseif rgbcolor value : mfun_to_lua(key,value,mfun_rgbcolor_to_lua) + elseif cmykcolor value : mfun_to_lua(key,value,mfun_cmykcolor_to_lua) + elseif transform value : mfun_to_lua(key,value,mfun_transform_to_lua) + fi ; +enddef ; + +def passarrayvariable(expr key)(suffix values)(expr first, last, stp) = + if numeric values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_numeric_to_lua) + elseif pair values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_pair_to_lua) + elseif string values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_string_to_lua) + elseif boolean values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_boolean_to_lua) + elseif path values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_path_to_lua) + elseif rgbcolor values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_rgbcolor_to_lua) + elseif cmykcolor values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_cmykcolor_to_lua) + elseif transform values[first] : mfun_array_to_lua(key,values,first,last,stp,mfun_transform_to_lua) + fi ; +enddef ; + +def startpassingvariable(expr k) = + begingroup ; + save stoppassingvariable, startarray, stoparray, starthash, stophash, key, value ; + let stoppassingvariable = mfun_stop_lua_variable ; + let startarray = mfun_start_lua_array ; + let stoparray = mfun_stop_lua_array ; + let starthash = mfun_start_lua_hash ; + let stophash = mfun_stop_lua_hash ; + let key = mfun_lua_key ; + let value = mfun_lua_value ; + save s ; string s ; + s := "metapost.variables['" & k & "']=" +enddef ; + +def mfun_stop_lua_variable = + ; + special substring(0,length(s)-1) of s ; + endgroup ; +enddef ; + +def mfun_start_lua_array = + & "{" +enddef ; + +def mfun_stop_lua_array = + & "}," +enddef ; + +def mfun_start_lua_hash = + & "{" +enddef ; + +def mfun_stop_lua_hash = + & "}," +enddef ; + +def mfun_lua_key(expr k) = + & "['" & k & "']=" +enddef ; + +def mfun_lua_value(expr v) = + if numeric v : & mfun_numeric_to_lua(v) & "," + elseif pair v : & mfun_pair_to_lua(v) & "," + elseif string v : & mfun_string_to_lua(v) & "," + elseif boolean v : & mfun_boolean_to_lua(v) & "," + elseif path v : & mfun_path_to_lua(v) & "," + elseif rgbcolor v : & mfun_rgbcolor_to_lua(v) & "," + elseif cmykcolor v : & mfun_cmykcolor_to_lua(v) & "," + elseif transform v : & mfun_transform_to_lua(v) & "," + fi +enddef ; + % moved here from mp-grap.mpiv vardef escaped_format(expr s) = |