Last change
on this file since 8783 was
5738,
checked in by landauf, 15 years ago
|
merged libraries2 back to trunk
|
-
Property svn:eol-style set to
native
|
File size:
1.6 KB
|
Rev | Line | |
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[1650] | 1 | -- mark up comments and strings |
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| 2 | STR1 = "\001" |
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| 3 | STR2 = "\002" |
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| 4 | STR3 = "\003" |
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| 5 | STR4 = "\004" |
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| 6 | REM = "\005" |
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| 7 | ANY = "([\001-\005])" |
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| 8 | ESC1 = "\006" |
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| 9 | ESC2 = "\007" |
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| 10 | |
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| 11 | MASK = { -- the substitution order is important |
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[2710] | 12 | {ESC1, "\\'"}, |
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| 13 | {ESC2, '\\"'}, |
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| 14 | {STR1, "'"}, |
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| 15 | {STR2, '"'}, |
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| 16 | {STR3, "%[%["}, |
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| 17 | {STR4, "%]%]"}, |
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| 18 | {REM , "%-%-"}, |
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[1650] | 19 | } |
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| 20 | |
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| 21 | function mask (s) |
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[2710] | 22 | for i = 1,getn(MASK) do |
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| 23 | s = gsub(s,MASK[i][2],MASK[i][1]) |
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| 24 | end |
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| 25 | return s |
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[1650] | 26 | end |
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| 27 | |
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| 28 | function unmask (s) |
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[2710] | 29 | for i = 1,getn(MASK) do |
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| 30 | s = gsub(s,MASK[i][1],MASK[i][2]) |
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| 31 | end |
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| 32 | return s |
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[1650] | 33 | end |
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| 34 | |
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| 35 | function clean (s) |
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[2710] | 36 | -- check for compilation error |
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| 37 | local code = "return function ()\n" .. s .. "\n end" |
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| 38 | if not dostring(code) then |
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| 39 | return nil |
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| 40 | end |
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[1650] | 41 | |
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[2710] | 42 | if flags['C'] then |
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| 43 | return s |
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| 44 | end |
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[1650] | 45 | |
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[2710] | 46 | local S = "" -- saved string |
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[1650] | 47 | |
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[2710] | 48 | s = mask(s) |
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[1650] | 49 | |
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[2710] | 50 | -- remove blanks and comments |
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| 51 | while 1 do |
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| 52 | local b,e,d = strfind(s,ANY) |
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| 53 | if b then |
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| 54 | S = S..strsub(s,1,b-1) |
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| 55 | s = strsub(s,b+1) |
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| 56 | if d==STR1 or d==STR2 then |
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| 57 | e = strfind(s,d) |
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| 58 | S = S ..d..strsub(s,1,e) |
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| 59 | s = strsub(s,e+1) |
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| 60 | elseif d==STR3 then |
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| 61 | e = strfind(s,STR4) |
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| 62 | S = S..d..strsub(s,1,e) |
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| 63 | s = strsub(s,e+1) |
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| 64 | elseif d==REM then |
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| 65 | s = gsub(s,"[^\n]*(\n?)","%1",1) |
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| 66 | end |
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| 67 | else |
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| 68 | S = S..s |
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| 69 | break |
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| 70 | end |
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| 71 | end |
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| 72 | -- eliminate unecessary spaces |
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| 73 | S = gsub(S,"[ \t]+"," ") |
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| 74 | S = gsub(S,"[ \t]*\n[ \t]*","\n") |
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| 75 | S = gsub(S,"\n+","\n") |
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| 76 | S = unmask(S) |
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| 77 | return S |
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[1650] | 78 | end |
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| 79 | |
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