library-mirrors/inspect.lua
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Merge branch 'zerochars' of https://github.com/andreashofer123/inspect.lua into andreashofer123-zerochars

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kikito 2016-04-08 19:42:55 +02:00
commit f8da52ca3d
2 changed files with 16 additions and 1 deletions
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12
inspect.lua
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@ -47,8 +47,18 @@ local controlCharsTranslation = {
["\r"] = "\\r", ["\t"] = "\\t", ["\v"] = "\\v"
}
local controlCharsTranslationBeforeDigit = {}
for i=0, 31 do
local ch = string.char(i)
if not controlCharsTranslation[ch] then
controlCharsTranslation[ch] = "\\"..i
controlCharsTranslationBeforeDigit[ch] = string.format("\\%03d",i)
end
end
local function escape(str)
local result = str:gsub("\\", "\\\\"):gsub("(%c)", controlCharsTranslation)
local result = str:gsub("\\", "\\\\"):gsub("(%c)%f[0-9]", controlCharsTranslationBeforeDigit):gsub("(%c)", controlCharsTranslation)
return result
end

5
spec/inspect_spec.lua
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@ -38,6 +38,11 @@ describe( 'inspect', function()
assert.equals('"I have \\b a back space"', inspect('I have \b a back space'))
end)
it('escapes zeroes and other control characters properly', function()
assert.equals('"I have \\0 zeroes \\0000 and other \\1 control \\0010 characters \\6 \\17 \\0279 \\31"',
inspect('I have \0 zeroes \0000 and other \1 control \0010 characters \6 \17 \0279 \31'))
end)
it('backslashes its backslashes', function()
assert.equals('"I have \\\\ a backslash"', inspect('I have \\ a backslash'))
assert.equals('"I have \\\\\\\\ two backslashes"', inspect('I have \\\\ two backslashes'))