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-rw-r--r--tex/context/base/syst-aux.lua160
1 files changed, 80 insertions, 80 deletions
diff --git a/tex/context/base/syst-aux.lua b/tex/context/base/syst-aux.lua
index d7250d239..b0fb8483b 100644
--- a/tex/context/base/syst-aux.lua
+++ b/tex/context/base/syst-aux.lua
@@ -1,80 +1,80 @@
-if not modules then modules = { } end modules ['syst-aux'] = {
- version = 1.001,
- comment = "companion to syst-aux.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
--- slower than lpeg:
---
--- utfmatch(str,"(.?)(.*)$")
--- utf.sub(str,1,1)
-
-local commands, context = commands, context
-
-local settings_to_array = utilities.parsers.settings_to_array
-local format = string.format
-local utfsub = utf.sub
-local P, C, Carg, lpegmatch, utf8char = lpeg.P, lpeg.C, lpeg.Carg, lpeg.match, lpeg.patterns.utf8char
-
-local setvalue = context.setvalue
-
-local pattern = C(utf8char^-1) * C(P(1)^0)
-
-function commands.getfirstcharacter(str)
- local first, rest = lpegmatch(pattern,str)
- setvalue("firstcharacter",first)
- setvalue("remainingcharacters",rest)
-end
-
-local pattern = C(utf8char^-1)
-
-function commands.doiffirstcharelse(chr,str)
- commands.doifelse(lpegmatch(pattern,str) == chr)
-end
-
-function commands.getsubstring(str,first,last)
- context(utfsub(str,tonumber(first),tonumber(last)))
-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
-
-local pattern = (C((1-P("%"))^1) * Carg(1)) /function(n,d) return format("%.0fsp",d * tonumber(n)/100) end * P("%") * P(-1)
-
--- commands.percentageof("10%",65536*10)
-
-function commands.percentageof(str,dim)
- context(lpegmatch(pattern,str,1,dim) or str)
-end
-
--- \gdef\setpercentdimen#1#2%
--- {#1=\ctxcommand{percentageof("#2",\number#1)}\relax}
+if not modules then modules = { } end modules ['syst-aux'] = {
+ version = 1.001,
+ comment = "companion to syst-aux.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- slower than lpeg:
+--
+-- utfmatch(str,"(.?)(.*)$")
+-- utf.sub(str,1,1)
+
+local commands, context = commands, context
+
+local settings_to_array = utilities.parsers.settings_to_array
+local format = string.format
+local utfsub = utf.sub
+local P, C, Carg, lpegmatch, utf8char = lpeg.P, lpeg.C, lpeg.Carg, lpeg.match, lpeg.patterns.utf8char
+
+local setvalue = context.setvalue
+
+local pattern = C(utf8char^-1) * C(P(1)^0)
+
+function commands.getfirstcharacter(str)
+ local first, rest = lpegmatch(pattern,str)
+ setvalue("firstcharacter",first)
+ setvalue("remainingcharacters",rest)
+end
+
+local pattern = C(utf8char^-1)
+
+function commands.doiffirstcharelse(chr,str)
+ commands.doifelse(lpegmatch(pattern,str) == chr)
+end
+
+function commands.getsubstring(str,first,last)
+ context(utfsub(str,tonumber(first),tonumber(last)))
+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
+
+local pattern = (C((1-P("%"))^1) * Carg(1)) /function(n,d) return format("%.0fsp",d * tonumber(n)/100) end * P("%") * P(-1)
+
+-- commands.percentageof("10%",65536*10)
+
+function commands.percentageof(str,dim)
+ context(lpegmatch(pattern,str,1,dim) or str)
+end
+
+-- \gdef\setpercentdimen#1#2%
+-- {#1=\ctxcommand{percentageof("#2",\number#1)}\relax}