diff options
Diffstat (limited to 'Master/texmf-dist/tex/context/base')
-rw-r--r-- | Master/texmf-dist/tex/context/base/l-file.lua | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/Master/texmf-dist/tex/context/base/l-file.lua b/Master/texmf-dist/tex/context/base/l-file.lua index 52e8ed1fbfd..212318fb751 100644 --- a/Master/texmf-dist/tex/context/base/l-file.lua +++ b/Master/texmf-dist/tex/context/base/l-file.lua @@ -143,7 +143,62 @@ end local insert = table.insert -function file.collapse_path(str) +function file.collapse_path(str,anchor) + if anchor and not find(str,"^/") and not find(str,"^%a:") then + str = getcurrentdir() .. "/" .. str + end + if str == "" or str =="." then + return "." + elseif find(str,"^%.%.") then + str = gsub(str,"\\","/") + return str + elseif not find(str,"%.") then + str = gsub(str,"\\","/") + return str + end + str = gsub(str,"\\","/") + local starter, rest = match(str,"^(%a+:/*)(.-)$") + if starter then + str = rest + end + local oldelements = checkedsplit(str,"/") + local newelements = { } + local i = #oldelements + while i > 0 do + local element = oldelements[i] + if element == '.' then + -- do nothing + elseif element == '..' then + local n = i -1 + while n > 0 do + local element = oldelements[n] + if element ~= '..' and element ~= '.' then + oldelements[n] = '.' + break + else + n = n - 1 + end + end + if n < 1 then + insert(newelements,1,'..') + end + elseif element ~= "" then + insert(newelements,1,element) + end + i = i - 1 + end + if #newelements == 0 then + return starter or "." + elseif starter then + return starter .. concat(newelements, '/') + elseif find(str,"^/") then + return "/" .. concat(newelements,'/') + else + return concat(newelements, '/') + end +end +function file.xcollapse_path(str) + print('collapse', str) if str == "" or str =="." then return "." elseif find(str,"^%.%.") then |