diff options
| author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-03-13 14:04:01 -0300 |
|---|---|---|
| committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-03-13 14:04:01 -0300 |
| commit | dfebe439db76b5c9fd9b4e3877857e2449c8ad87 (patch) | |
| tree | c31aa85dc53d1c0e0704060f313b682765dd459c /testes | |
| parent | cf71a5ddc742692fad813f89f1c9ef53e1ffde0f (diff) | |
| download | lua-dfebe439db76b5c9fd9b4e3877857e2449c8ad87.tar.gz lua-dfebe439db76b5c9fd9b4e3877857e2449c8ad87.tar.bz2 lua-dfebe439db76b5c9fd9b4e3877857e2449c8ad87.zip | |
New conversion specifier '%p' for 'string.format'
The call 'string.format("%p", val)' gives a Lua equivalent to the
C API function 'lua_topointer'.
Diffstat (limited to 'testes')
| -rw-r--r-- | testes/strings.lua | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/testes/strings.lua b/testes/strings.lua index da53a87e..8bcbb391 100644 --- a/testes/strings.lua +++ b/testes/strings.lua | |||
| @@ -153,6 +153,22 @@ else -- compatible coercion | |||
| 153 | assert(tostring(-1203 + 0.0) == "-1203") | 153 | assert(tostring(-1203 + 0.0) == "-1203") |
| 154 | end | 154 | end |
| 155 | 155 | ||
| 156 | do -- tests for '%p' format | ||
| 157 | -- not much to test, as C does not specify what '%p' does. | ||
| 158 | -- ("The value of the pointer is converted to a sequence of printing | ||
| 159 | -- characters, in an implementation-defined manner.") | ||
| 160 | local null = string.format("%p", nil) | ||
| 161 | assert(string.format("%p", {}) ~= null) | ||
| 162 | assert(string.format("%p", 4) == null) | ||
| 163 | assert(string.format("%p", print) ~= null) | ||
| 164 | assert(string.format("%p", coroutine.running()) ~= null) | ||
| 165 | assert(string.format("%p", {}) ~= string.format("%p", {})) | ||
| 166 | assert(string.format("%p", string.rep("a", 10)) == | ||
| 167 | string.format("%p", string.rep("a", 10))) -- short strings | ||
| 168 | assert(string.format("%p", string.rep("a", 300)) ~= | ||
| 169 | string.format("%p", string.rep("a", 300))) -- long strings | ||
| 170 | assert(#string.format("%90p", {}) == 90) | ||
| 171 | end | ||
| 156 | 172 | ||
| 157 | x = '"�lo"\n\\' | 173 | x = '"�lo"\n\\' |
| 158 | assert(string.format('%q%s', x, x) == '"\\"�lo\\"\\\n\\\\""�lo"\n\\') | 174 | assert(string.format('%q%s', x, x) == '"\\"�lo\\"\\\n\\\\""�lo"\n\\') |