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Add partial implementation of string.format.

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Not yet implemented:
(1) '#' flag (use alternate format)
(2) Floating point formats

2 digit widths and precisions are not yet tested.
This commit is contained in:
Ian Farmer
2008-07-24 06:38:35 +00:00
parent 7f1c388919
commit 28f349a6fa
5 changed files with 338 additions and 34 deletions
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2
src/test/errors/stringlibargs.lua
View File

@@ -47,12 +47,14 @@ checkallerrors('string.find',{somestring,somestring,nonnumber},'bad argument #3'
-- string.format
local numfmts = {'%c','%d','%E','%e','%f','%g','%G','%i','%o','%u','%X','%x'}
local strfmts = {'%q','%s'}
local badfmts = {'%w'}
banner('string.format')
checkallpass('string.format',{somestring,anylua})
checkallpass('string.format',{numfmts,somenumber})
checkallpass('string.format',{strfmts,somestring})
checkallerrors('string.format',{numfmts,notanumber},'bad argument #2')
checkallerrors('string.format',{strfmts,notastring},'bad argument #2')
checkallerrors('string.format',{badfmts,somestring},"invalid option '%w'")
-- string.gmatch
banner('string.gmatch')

26
src/test/res/strlib.lua
View File

@@ -85,10 +85,36 @@ print(#"\0\1\2\3")
local s = "My JaCk-O-lAnTeRn CaSe TeXt"
print(s, string.len(s), #s)
-- string.format
print(string.format("(%.0d) (%.0d) (%.0d)", 0, -5, 9))
print(string.format("(%.1d) (%.1d) (%.1d)", 0, -5, 9))
print(string.format("(%.2d) (%.2d) (%.2d)", 0, -5, 9))
print(string.format("(%+.0d) (%+.0d) (%+.0d)", 0, -5, 9))
print(string.format("(%+.1d) (%+.1d) (%+.1d)", 0, -5, 9))
print(string.format("(%+.2d) (%+.2d) (%+.2d)", 0, -5, 9))
print(string.format("(%+3d) (% 3d) (%+ 3d)", 55, 55, 55))
print(string.format("(%-1d) (%-1d) (%-1d)", 1, 12, -12))
print(string.format("(%-2d) (%-2d) (%-2d)", 1, 12, -12))
print(string.format("(%-3d) (%-3d) (%-3d)", 1, 12, -12))
print(string.format("(%8x) (%8d) (%8o)", 255, 255, 255))
print(string.format("(%08x) (%08d) (%08o)", 255, 255, 255))
print(string.format("simple%ssimple", " simple "))
specials = "\"specials\": %% \000 \r \n"
print(string.format("%s\n%q\n", specials, specials))
print(string.format("%%"))
print(string.format("this is a %s long string", string.rep("really, ", 30)))
local function pc(...)
local s,e = pcall(...)
return s and e or 'false-'..type(e)
end
local function strtests(name,func,...)
print(name, 'good', pc( func, ... ) )
print(name, 'empty', pc( func ) )