https://issues.dlang.org/show_bug.cgi?id=17281
Issue ID: 17281
Summary: std.format.format should not allow nonsensical format
specifiers
Product: D
Version: D2
Hardware: x86_64
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: phobos
Assignee: [email protected]
Reporter: [email protected]
Currently, the documentation for std.format.format states that specifiers
consist of '%' followed by optional Position, optional Flags, optional Width,
optional Precision, and finally the format character.
However, the actual implementation is far more lax, and allows nonsensical
specifiers such as the following:
------
import std.stdio;
void main() {
writefln("%3+-.3#-+-.3---+++###s", "WAT");
}
------
The implementation ought to be cleaned up to reject such nonsensical format
strings.
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