Douglas Gregor
5ee568ac27
Extend StringRef's edit-distance algorithm to permit an upper bound on the allowed edit distance
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19 22:13:48 +00:00
Benjamin Kramer
250eb005d9
Avoid O(n*m) complexity in StringRef::find_first(_not)_of(StringRef).
...
- Cache used characters in a bitset to reduce memory overhead to just 32 bytes.
- On my core2 this code is faster except when the checked string was very short
(smaller than the list of delimiters).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111817 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23 18:16:08 +00:00
Benjamin Kramer
79ed2c597a
StringRef tweaks:
...
- Respect find_first_of(char's From parameter instead of silently dropping it.
- Prefer std::string() to std::string("")
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111814 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23 17:44:13 +00:00
Chris Lattner
7f7274ce7f
Don't pass in a null pointer to std::string's ctor, an empty string
...
ref should produce an empty std::string. This fixes PR7879.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111332 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18 00:11:25 +00:00
Jakob Stoklund Olesen
160a3bf74d
Add StringRef::compare_numeric and use it to sort TableGen register records.
...
This means that our Registers are now ordered R7, R8, R9, R10, R12, ...
Not R1, R10, R11, R12, R2, R3, ...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104745 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26 21:47:28 +00:00
Dan Gohman
fd813bc850
These functions don't need to access this.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19 15:38:38 +00:00
John McCall
1e7ad3993d
Add an override to StringRef::getAsInteger which parses into an APInt.
...
It gets its own implementation totally divorced from the (presumably
performance-sensitive) routines which parse into a uint64_t.
Add APInt::operator|=(uint64_t), which is situationally much better than
using a full APInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 09:55:58 +00:00
Dan Gohman
fb76fe0929
Fix various doxygen warnings.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96779 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 04:10:52 +00:00
Chris Lattner
af2a8361e4
give StringRef a const_iterator member.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-13 04:50:20 +00:00
Kovarththanan Rajaratnam
3c37bb8dbe
Fix occurrence typo
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92926 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-07 18:46:52 +00:00
Douglas Gregor
441c8b4ad1
Implement edit distance for StringRef
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92309 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-30 17:23:44 +00:00
Eli Friedman
d5b1f8a842
Change StringRef::startswith and StringRef::endswith to versions which are a
...
bit more verbose, but optimize to much shorter code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91817 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-21 06:49:24 +00:00
Benjamin Kramer
1acdcd5b0d
Remove the now obsolete algorithm include from StringRef.h.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 15:48:14 +00:00
Torok Edwin
2fe05d80d3
Workaround PR5482, because all the gcc versions that I had were miscompiling StringRef:
...
4.2.4, 4.3.4, 4.4.2.
The workaround is to use a local min/max implementation that takes an integer
param, and not a reference to integer param (like std::min does).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19 15:39:50 +00:00
Eric Christopher
4c269e2feb
Fix unused variables warnings.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88977 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-16 22:34:32 +00:00
Dan Gohman
24f8e29b4e
Use .data() instead of .c_str() when nul-termination is not needed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 21:55:31 +00:00
Rafael Espindola
c78c0c99a0
Switch to smallvector. Also fix issue with using unsigend for MaxSplit.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 02:18:25 +00:00
Rafael Espindola
5ccac24726
Add a new split method to StringRef that puts the substrings in a vector.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13 01:24:40 +00:00
Daniel Dunbar
89fccca4b0
StringRef(const char*) should not be used to turn null pointers into empty
...
strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 21:26:11 +00:00
Benjamin Kramer
05872ea804
Add compare_lower and equals_lower methods to StringRef. Switch all users of
...
StringsEqualNoCase (from StringExtras.h) to it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87020 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 20:36:59 +00:00
Daniel Dunbar
a8333d3d10
Add StringRef::split(StringRef), to complement StringRef::split(char).
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86803 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 05:19:11 +00:00
Daniel Dunbar
64066bd8b5
Add From arguments to StringRef search functions, and tweak doxyments.
...
Also, add unittests for find_first_of and find_first_not_of.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86770 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 00:28:53 +00:00
Daniel Dunbar
2928c83b01
Pass StringRef by value.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06 10:58:06 +00:00
Eric Christopher
abc5ac7289
size_t, not unsigned here to silence a warning.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84900 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22 22:06:50 +00:00
Dan Gohman
835b142edd
Don't use identifiers that start with an underscore followed
...
by a capital letter, which invokes undefined behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83206 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-01 17:39:52 +00:00
Devang Patel
1e9a727f10
Create empty StringRef is incoming cstring is NULL.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83082 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-29 18:39:56 +00:00
Chris Lattner
c936fe8cb3
write rfind in terms of npos as daniel requested
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82414 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20 22:54:26 +00:00
Chris Lattner
05a32c8ab1
move a couple non-trivial methods out of line, add new
...
find_first_of/find_first_of methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20 01:22:16 +00:00
Chris Lattner
db513bc096
add size_t and a version of rfind that allows specification of where
...
to scan from.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20 00:38:28 +00:00
Chris Lattner
63c6b7dc67
add some more overloads of StringRef::getAsInteger for
...
common and useful integer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82338 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-19 23:58:48 +00:00
Chris Lattner
cea1438cf5
provide a "strtoull" operation that works on StringRef's.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82322 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-19 19:47:14 +00:00
Daniel Dunbar
e65512809a
Add StringRef::{rfind, rsplit}
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82087 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16 22:38:48 +00:00
Daniel Dunbar
323a3e6533
Fix pasto in StringRef::count(char)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79356 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 18:34:22 +00:00
Daniel Dunbar
5caba3bcb1
Add StringRef::count({char,StringRef})
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 18:26:35 +00:00
Daniel Dunbar
ac55b85438
Add StringRef::front (with some small tweaks while I was in the area).
...
- Patch by Erick Tryzelaar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78883 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13 02:03:30 +00:00
Daniel Dunbar
0ad7f9bb2f
StringRef: Add find(char) and find(StringRef).
...
Also, regroup functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 20:47:15 +00:00
Chris Lattner
e36df3fd31
add a simple back() method to StringRef.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78544 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10 00:44:02 +00:00
Daniel Dunbar
c9af366fc3
Add StringRef::endswith
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78197 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 15:48:26 +00:00
Chris Lattner
7e763ebd98
Use the RHS length instead of the LHS length. They are both the same,
...
but this ends up compiling code like this:
int foo(const StringRef &R) {
return R == "food";
}
to use a constant sized memcmp instead of a variable memcmp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77160 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 17:46:03 +00:00
Daniel Dunbar
d61918fc68
Add StringRef::{slice, split}, two convenient string operations which are simple
...
and efficient on a StringRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77117 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 03:18:15 +00:00
Daniel Dunbar
b834a7b73c
Define npos in a way that should make MSVC happier.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76785 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 21:08:31 +00:00
Daniel Dunbar
85f49835c2
Add missing include
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76655 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 21:33:58 +00:00
Daniel Dunbar
7cb6860185
Move StringRef comparison operators out of class.
...
Also, tweak the return type of size().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76588 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 17:25:46 +00:00
Daniel Dunbar
f5fdf73238
Add StringRef::{substr, startswith}.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76559 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 09:18:49 +00:00
Daniel Dunbar
4cf95d75c6
Add StringRef class, with fixes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76543 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 07:28:51 +00:00