diff options
Diffstat (limited to 'tex/context/base/syst-aux.lua')
| -rw-r--r-- | tex/context/base/syst-aux.lua | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/tex/context/base/syst-aux.lua b/tex/context/base/syst-aux.lua index a585ed8b2..7fd25d6ab 100644 --- a/tex/context/base/syst-aux.lua +++ b/tex/context/base/syst-aux.lua @@ -6,12 +6,47 @@ if not modules then modules = { } end modules ['syst-aux'] = { license = "see context related readme files" } +local settings_to_array = utilities.parsers.settings_to_array +local concat = table.concat + +local setvalue = context.setvalue + function commands.getfirstcharacter(str) local first, rest = utf.match(str,"(.?)(.*)$") - context.setvalue("firstcharacter",first) - context.setvalue("remainingcharacters",rest) + setvalue("firstcharacter",first) + setvalue("remainingcharacters",rest) end function commands.doiffirstcharelse(chr,str) commands.doifelse(utf.sub(str,1,1) == chr) end + +-- function commands.addtocommalist(list,item) +-- if list == "" then +-- context(item) +-- else +-- context("%s,%s",list,item) -- using tex.print is some 10% faster +-- end +-- end +-- +-- function commands.removefromcommalist(list,item) +-- if list == "" then +-- context(item) +-- else +-- -- okay, using a proper lpeg is probably faster +-- -- we could also check for #l = 1 +-- local l = settings_to_array(list) +-- local t, n = { } +-- for i=1,#l do +-- if l[i] ~= item then +-- n = n + 1 +-- t[n] = item +-- end +-- end +-- if n == 0 then +-- context(item) +-- else +-- context(concat(list,",")) +-- end +-- end +-- end |