diff options
Diffstat (limited to 'tex/context/base/l-utils.lua')
| -rw-r--r-- | tex/context/base/l-utils.lua | 154 |
1 files changed, 67 insertions, 87 deletions
diff --git a/tex/context/base/l-utils.lua b/tex/context/base/l-utils.lua index ebc27b8cf..d03426812 100644 --- a/tex/context/base/l-utils.lua +++ b/tex/context/base/l-utils.lua @@ -8,7 +8,7 @@ if not modules then modules = { } end modules ['l-utils'] = { -- hm, quite unreadable -local gsub = string.gsub +local gsub, format = string.gsub, string.format local concat = table.concat local type, next = type, next @@ -16,81 +16,79 @@ if not utils then utils = { } end if not utils.merger then utils.merger = { } end if not utils.lua then utils.lua = { } end -utils.merger.m_begin = "begin library merge" -utils.merger.m_end = "end library merge" -utils.merger.pattern = +utils.report = utils.report or print + +local merger = utils.merger + +merger.strip_comment = true + +local m_begin_merge = "begin library merge" +local m_end_merge = "end library merge" +local m_begin_closure = "do -- create closure to overcome 200 locals limit" +local m_end_closure = "end -- of closure" + +local m_pattern = "%c+" .. - "%-%-%s+" .. utils.merger.m_begin .. + "%-%-%s+" .. m_begin_merge .. "%c+(.-)%c+" .. - "%-%-%s+" .. utils.merger.m_end .. + "%-%-%s+" .. m_end_merge .. "%c+" -function utils.merger._self_fake_() - return - "-- " .. "created merged file" .. "\n\n" .. - "-- " .. utils.merger.m_begin .. "\n\n" .. - "-- " .. utils.merger.m_end .. "\n\n" -end +local m_format = + "\n\n-- " .. m_begin_merge .. + "\n%s\n" .. + "-- " .. m_end_merge .. "\n\n" + +local m_faked = + "-- " .. "created merged file" .. "\n\n" .. + "-- " .. m_begin_merge .. "\n\n" .. + "-- " .. m_end_merge .. "\n\n" -function utils.report(...) - print(...) +local function self_fake() + return m_faked end -utils.merger.strip_comment = true +local function self_nothing() + return "" +end -function utils.merger._self_load_(name) - local f, data = io.open(name), "" - if f then - utils.report("reading merge from %s",name) - data = f:read("*all") - f:close() +local function self_load(name) + local data = io.loaddata(name) or "" + if data == "" then + utils.report("merge: unknown file %s",name) else - utils.report("unknown file to merge %s",name) - end - if data and utils.merger.strip_comment then - -- saves some 20K - data = gsub(data,"%-%-~[^\n\r]*[\r\n]", "") + utils.report("merge: inserting %s",name) end return data or "" end -function utils.merger._self_save_(name, data) +local function self_save(name, data) if data ~= "" then - local f = io.open(name,'w') - if f then - utils.report("saving merge from %s",name) - f:write(data) - f:close() + if merger.strip_comment then + -- saves some 20K + local n = #data + data = gsub(data,"%-%-~[^\n\r]*[\r\n]","") + utils.report("merge: %s bytes of comment stripped, %s bytes of code left",n-#data,#data) end + io.savedata(name,data) + utils.report("merge: saving %s",name) end end -function utils.merger._self_swap_(data,code) - if data ~= "" then - return (gsub(data,utils.merger.pattern, function(s) - return "\n\n" .. "-- "..utils.merger.m_begin .. "\n" .. code .. "\n" .. "-- "..utils.merger.m_end .. "\n\n" - end, 1)) - else - return "" - end +local function self_swap(data,code) + return data ~= "" and (gsub(data,m_pattern, function() return format(m_format,code) end, 1)) or "" end ---~ stripper: ---~ ---~ data = gsub(data,"%-%-~[^\n]*\n","") ---~ data = gsub(data,"\n\n+","\n") - -function utils.merger._self_libs_(libs,list) - local result, f, frozen = { }, nil, false +local function self_libs(libs,list) + local result, f, frozen, foundpath = { }, nil, false, nil result[#result+1] = "\n" if type(libs) == 'string' then libs = { libs } end if type(list) == 'string' then list = { list } end - local foundpath = nil for i=1,#libs do local lib = libs[i] for j=1,#list do local pth = gsub(list[j],"\\","/") -- file.clean_path - utils.report("checking library path %s",pth) + utils.report("merge: checking library path %s",pth) local name = pth .. "/" .. lib if lfs.isfile(name) then foundpath = pth @@ -99,76 +97,58 @@ function utils.merger._self_libs_(libs,list) if foundpath then break end end if foundpath then - utils.report("using library path %s",foundpath) + utils.report("merge: using library path %s",foundpath) local right, wrong = { }, { } for i=1,#libs do local lib = libs[i] local fullname = foundpath .. "/" .. lib if lfs.isfile(fullname) then - -- right[#right+1] = lib - utils.report("merging library %s",fullname) - result[#result+1] = "do -- create closure to overcome 200 locals limit" + utils.report("merge: using library %s",fullname) + right[#right+1] = lib + result[#result+1] = m_begin_closure result[#result+1] = io.loaddata(fullname,true) - result[#result+1] = "end -- of closure" + result[#result+1] = m_end_closure else - -- wrong[#wrong+1] = lib - utils.report("no library %s",fullname) + utils.report("merge: skipping library %s",fullname) + wrong[#wrong+1] = lib end end if #right > 0 then - utils.report("merged libraries: %s",concat(right," ")) + utils.report("merge: used libraries: %s",concat(right," ")) end if #wrong > 0 then - utils.report("skipped libraries: %s",concat(wrong," ")) + utils.report("merge: skipped libraries: %s",concat(wrong," ")) end else - utils.report("no valid library path found") + utils.report("merge: no valid library path found") end return concat(result, "\n\n") end -function utils.merger.selfcreate(libs,list,target) +function merger.selfcreate(libs,list,target) if target then - utils.merger._self_save_( - target, - utils.merger._self_swap_( - utils.merger._self_fake_(), - utils.merger._self_libs_(libs,list) - ) - ) + self_save(target,self_swap(self_fake(),self_libs(libs,list))) end end -function utils.merger.selfmerge(name,libs,list,target) - utils.merger._self_save_( - target or name, - utils.merger._self_swap_( - utils.merger._self_load_(name), - utils.merger._self_libs_(libs,list) - ) - ) +function merger.selfmerge(name,libs,list,target) + self_save(target or name,self_swap(self_load(name),self_libs(libs,list))) end -function utils.merger.selfclean(name) - utils.merger._self_save_( - name, - utils.merger._self_swap_( - utils.merger._self_load_(name), - "" - ) - ) +function merger.selfclean(name) + self_save(name,self_swap(self_load(name),self_nothing())) end -function utils.lua.compile(luafile, lucfile, cleanup, strip) -- defaults: cleanup=false strip=true - -- utils.report("compiling",luafile,"into",lucfile) +function utils.lua.compile(luafile,lucfile,cleanup,strip) -- defaults: cleanup=false strip=true + utils.report("lua: compiling %s into %s",luafile,lucfile) os.remove(lucfile) local command = "-o " .. string.quote(lucfile) .. " " .. string.quote(luafile) if strip ~= false then command = "-s " .. command end - local done = (os.spawn("texluac " .. command) == 0) or (os.spawn("luac " .. command) == 0) + local done = os.spawn("texluac " .. command) == 0 or os.spawn("luac " .. command) == 0 if done and cleanup == true and lfs.isfile(lucfile) and lfs.isfile(luafile) then - -- utils.report("removing",luafile) + utils.report("lua: removing %s",luafile) os.remove(luafile) end return done |