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-rw-r--r--tolua/src/bin/lua/clean.lua150
1 files changed, 75 insertions, 75 deletions
diff --git a/tolua/src/bin/lua/clean.lua b/tolua/src/bin/lua/clean.lua
index 2442291..b11e38c 100644
--- a/tolua/src/bin/lua/clean.lua
+++ b/tolua/src/bin/lua/clean.lua
@@ -1,75 +1,75 @@
--- mark up comments and strings
-STR1 = "\001"
-STR2 = "\002"
-STR3 = "\003"
-STR4 = "\004"
-REM = "\005"
-ANY = "([\001-\005])"
-ESC1 = "\006"
-ESC2 = "\007"
-
-MASK = { -- the substitution order is important
- {ESC1, "\\'", "\\'"},
- {ESC2, '\\"', '\\"'},
- {STR1, "'", "'"},
- {STR2, '"', '"'},
- {STR3, "%[%[", "[["},
- {STR4, "%]%]", "]]"},
- {REM , "%-%-", "--"},
-}
-
-function mask (s)
- for i = 1,getn(MASK) do
- s = gsub(s,MASK[i][2],MASK[i][1])
- end
- return s
-end
-
-function unmask (s)
- for i = 1,getn(MASK) do
- s = gsub(s,MASK[i][1],MASK[i][3])
- end
- return s
-end
-
-function clean (s)
- -- check for compilation error
- local code = "return function () " .. s .. " end"
- if not dostring(code) then
- return nil
- end
-
- local S = "" -- saved string
-
- s = mask(s)
-
- -- remove blanks and comments
- while 1 do
- local b,e,d = strfind(s,ANY)
- if b then
- S = S..strsub(s,1,b-1)
- s = strsub(s,b+1)
- if d==STR1 or d==STR2 then
- e = strfind(s,d)
- S = S ..d..strsub(s,1,e)
- s = strsub(s,e+1)
- elseif d==STR3 then
- e = strfind(s,STR4)
- S = S..d..strsub(s,1,e)
- s = strsub(s,e+1)
- elseif d==REM then
- s = gsub(s,"[^\n]*(\n?)","%1",1)
- end
- else
- S = S..s
- break
- end
- end
- -- eliminate unecessary spaces
- S = gsub(S,"[ \t]+"," ")
- S = gsub(S,"[ \t]*\n[ \t]*","\n")
- S = gsub(S,"\n+","\n")
- S = unmask(S)
- return S
-end
-
+-- mark up comments and strings
+STR1 = "\001"
+STR2 = "\002"
+STR3 = "\003"
+STR4 = "\004"
+REM = "\005"
+ANY = "([\001-\005])"
+ESC1 = "\006"
+ESC2 = "\007"
+
+MASK = { -- the substitution order is important
+ {ESC1, "\\'", "\\'"},
+ {ESC2, '\\"', '\\"'},
+ {STR1, "'", "'"},
+ {STR2, '"', '"'},
+ {STR3, "%[%[", "[["},
+ {STR4, "%]%]", "]]"},
+ {REM , "%-%-", "--"},
+}
+
+function mask (s)
+ for i = 1,getn(MASK) do
+ s = gsub(s,MASK[i][2],MASK[i][1])
+ end
+ return s
+end
+
+function unmask (s)
+ for i = 1,getn(MASK) do
+ s = gsub(s,MASK[i][1],MASK[i][3])
+ end
+ return s
+end
+
+function clean (s)
+ -- check for compilation error
+ local code = "return function () " .. s .. " end"
+ if not dostring(code) then
+ return nil
+ end
+
+ local S = "" -- saved string
+
+ s = mask(s)
+
+ -- remove blanks and comments
+ while 1 do
+ local b,e,d = strfind(s,ANY)
+ if b then
+ S = S..strsub(s,1,b-1)
+ s = strsub(s,b+1)
+ if d==STR1 or d==STR2 then
+ e = strfind(s,d)
+ S = S ..d..strsub(s,1,e)
+ s = strsub(s,e+1)
+ elseif d==STR3 then
+ e = strfind(s,STR4)
+ S = S..d..strsub(s,1,e)
+ s = strsub(s,e+1)
+ elseif d==REM then
+ s = gsub(s,"[^\n]*(\n?)","%1",1)
+ end
+ else
+ S = S..s
+ break
+ end
+ end
+ -- eliminate unecessary spaces
+ S = gsub(S,"[ \t]+"," ")
+ S = gsub(S,"[ \t]*\n[ \t]*","\n")
+ S = gsub(S,"\n+","\n")
+ S = unmask(S)
+ return S
+end
+