Commit Graph

302 Commits (7e49a2b6b8ad341d467d47adf45c58d22f4a05c6)

Author SHA1 Message Date
Tadashi G. Takaoka a58ebc73ae Fix typo of some methods' name
Also changes some methods' argument type from Locale to String.

Change-Id: Ib68b528a450dc68a01546483403230f76500bee4
2012-04-18 16:40:50 +09:00
Jean Chalard bde232dcaa Merge "Pass the previous word down to native code in getSuggestions" 2012-04-17 18:01:05 -07:00
Jean Chalard 80111f08e2 Pass the previous word down to native code in getSuggestions
Change-Id: I477b631d81ef58461e44954f3ae5fd895928bb97
2012-04-17 20:07:10 +09:00
Jean Chalard fec6837ae1 Fix debug compilation + small cleanup
Change-Id: Ia89d84f62ba38dee05d25fbc94698e889cf27d2c
2012-04-17 17:33:25 +09:00
Jean Chalard ee396df162 Fix a native crash
This was introduced by Ieb2e306a which failed to keep the return
behavior in case the word doesn't have a bigram.

Change-Id: I6d2f0b79d41c4335e94696690c8331e314961133
2012-04-17 16:57:42 +09:00
Jean Chalard 9c2a96aa6c Preparatory refactoring
Split out getting the pointer to the bigrams to a separate
function. This is a preparative change to bug#6313806

Change-Id: Ieb2e306a1151cd95dc1a16793c8dc2f7fed8b654
2012-04-17 11:46:20 +09:00
Ken Wakasa db87fe4d5c Just cosmetic changes in jni code
Change-Id: I8628131b5a7ccdee4c158e891002c8b86623b0cd
2012-04-16 19:16:05 +09:00
Jean Chalard 3f675f7060 Fix a large native memory leak.
This leak was about 500k and would happen whenever a new binary
dictionary was opened/closed.

Bug: 6299535
Change-Id: I4fad5b4d9c556ca889f5ef62d9d083a2eff6346a
2012-04-16 16:48:53 +09:00
Jean Chalard 338d3ec725 Replace the flags in getSuggestions with a boolean.
Change-Id: I0ec44df1979cb1dc21017ea290d2151a2af0e7cd

Conflicts:

	java/src/com/android/inputmethod/latin/Suggest.java
2012-04-06 19:34:48 +09:00
Jean Chalard aa8df59914 Enable using the flags read from the binary file.
Change-Id: Ib420c3e174ccc1a80c4b6fd066de3b7a2b6fb290
2012-04-06 18:54:20 +09:00
Jean Chalard cd274b1469 Save the flags in a member in the unigram dictionary.
Change-Id: Ic8fad9110db6b97f98ace27af0f347b4e69de8c8
2012-04-06 18:34:59 +09:00
Jean Chalard e81ac8baa0 Add a method to get the flags from a binary dictionary.
This method is not used yet

Change-Id: Ic15d3d423aff2c83c712bc0aa56571d30755e663
2012-04-06 18:34:22 +09:00
Jean Chalard 5b0761e6a9 Remove write-only stuff
Change-Id: I5ac8ab64c77a298502b3d063ea70db9b4da41716
2012-04-06 17:52:18 +09:00
Jean Chalard 9a933a742d Read shortcuts as strings in the dictionary.
This has no impact on performance.
Before:
(0)  9.61 (0.01%)
(1)  57514.58 (56.70%)
(2)  10.55 (0.01%)
(3)  10.79 (0.01%)
(4)  133.20 (0.13%)
(5)  43553.87 (42.94%)
(6)  10.03 (0.01%)
(20) 47.20 (0.05%)
Total 101431.47 (sum of others 101289.84)

After:
(0)  10.52 (0.01%)
(1)  56311.16 (56.66%)
(2)  13.40 (0.01%)
(3)  10.98 (0.01%)
(4)  136.72 (0.14%)
(5)  42707.92 (42.97%)
(6)  9.79 (0.01%)
(20) 51.35 (0.05%)
Total 99390.76 (sum of others 99251.84)

The difference is not significant with regard to measure imprecision

Change-Id: I2e4f1ef7a5e99082e67dd27f56cf4fc432bb48fa
2012-04-06 16:22:08 +09:00
Ken Wakasa 0c1a3ec629 Make LatinIME's native Makefile NDK-friendly
Change-Id: I55d430756b3a8251c9ff49dfabfcecb047d979a4
2012-03-31 05:07:32 +09:00
Ying Wang 32f0e24b33 Remove ".." in the native LOCAL_SRC_FILES.
The build system does not work well with ".." in the path of native
source code.
".." causes the object files to spill out of the module's intermediate
directory.

Change-Id: Ib4a473426be296a738e7facbaa091e56f0b7c5b8
2012-03-30 10:50:26 -07:00
Ken Wakasa 3ef3e24a12 Move the "src" directory as a preparation for Ib4a47342 and I66f6c5b9
Change-Id: I3ab65059f6e356530484bfd0bba26a634a4cba65
2012-03-30 09:53:51 +09:00
satok 6ba8de2a60 Good bye the proximity logic in Java code
Bug: 4343280
Change-Id: I82f7d08703647a3492ce6e2d3b741146df58927e
2012-03-28 18:42:30 +09:00
Tom Ouyang aeda8a7798 Change the first character check in bigram dictionary to be case insensitive.
Bug: 6188977
Change-Id: I121c1abf245c7f8734730810c07d3351b1ec581a
2012-03-24 15:31:27 +09:00
satok acb6c5445f Fix build breakage
Change-Id: Ic4d3cf6932dcd57c1040c7877ab7c7f48cd6c408
2012-03-23 20:58:18 +09:00
Jean Chalard 350ffc879a Merge "Fix a bug with negative coordinates, step 3" 2012-03-23 04:04:48 -07:00
Jean Chalard e2222b78d3 Merge "Fix a bug with negative coordinates, step 2" 2012-03-23 03:50:21 -07:00
Jean Chalard 7f18f44461 Merge "Fix a bug with negative coordinates, step 1" 2012-03-23 03:48:53 -07:00
Jean Chalard 52612a0d1b Fix a bug with negative coordinates, step 3
This implements the actual change, now that indentation is okay

Change-Id: Idd897f988394125611516431711c1e575df871df
2012-03-23 19:38:23 +09:00
Jean Chalard 3094d12cdc Fix a bug with negative coordinates, step 2
Indentation changes only

Change-Id: I95011e7d3f787ae6749b826af627f9acaed34e97
2012-03-23 19:37:13 +09:00
Jean Chalard 88ec125cfc Fix a bug with negative coordinates, step 1
This breaks style guidelines but for some reason git diff gets
so lost on this re-indent that it's better to do it like this

Change-Id: Ie0a603eb0739704894a5adc25f9d527b37bdf151
2012-03-23 19:34:53 +09:00
satok 8980bd4a25 Merge "Cleanup jni 1" 2012-03-23 03:24:08 -07:00
satok 9df4a4527a Cleanup jni 1
Change-Id: Ieb6af8385356e259720b50f1fe46a694a098b30f
2012-03-23 19:03:20 +09:00
Jean Chalard 2b5b6388d6 Merge "Fix a typo" 2012-03-23 02:48:15 -07:00
Jean Chalard bbc25607f0 Fix a typo
Change-Id: If794344629e93b558d60b023ae70b703f9c039ab
2012-03-23 17:05:03 +09:00
Jean Chalard cc78d03a62 Add processing for French ligatures.
Bug: 5140033
Change-Id: I1c2751fc617e662aad9f67506e28a622f81d0bc9
2012-03-23 16:50:59 +09:00
Jean Chalard 081616cd2f Send correct coordinates for the spell checker
This results in the computation being done in native code
and the correct proximity being used.
Bug: 6181080

Change-Id: I08fa05c781d607e4feca2caeda353ec19c133a3d
2012-03-23 13:02:58 +09:00
Jean Chalard d30433837d Add a replacement character to digraphs system
The digraphs system used to allow only the replacement of
a pair (A, B) by (A). This change allows the replacement to
be any character.
Bug: 5140033

Change-Id: Icf5995f0ec553f7b7989af9902cbb2c4c6b51009
2012-03-22 11:37:26 +09:00
Jean Chalard 9c4396abb3 Merge "Generalize the digraph code" 2012-03-21 18:47:10 -07:00
Jean Chalard 6c30061c70 Generalize the digraph code
Bug: 5140033
Change-Id: I19c8c89f79f7c1ce1fba58d50bc2697747052599
2012-03-21 17:50:55 +09:00
Jean Chalard 9715cc4ed5 Fix a bug where the returned number of bigrams was incorrect
Bug: 6191885
Change-Id: I1daa4d2eaeec5f5c1a4eef79221fd7de357763e9
2012-03-21 16:55:04 +09:00
satok 1caff47ecd Calculate proximity characters in the native code
Bug: 4343280

Change-Id: I6adaf560f7a4f1f96dcb6ec2f61f20ee3001167e
2012-03-16 17:26:36 +09:00
satok 0cb2097a45 Fix additional proximity in the native code
Bug: 4343280
Change-Id: I4164bb916b2dbdfb6bdc151b99d46a6171d9c355
2012-03-14 11:17:59 +09:00
satok 5eec574cf0 Use additional proximity chars in the native code
Bug: 4343280

Change-Id: Ida690fe246cea80a82fcdb3ad0c28e2907b882ac
2012-03-13 19:00:16 +09:00
satok 552c3c27f0 Implement additional proximity characters in the native code
Bug: 4343280

Change-Id: I9bbc5cab2fef1ee80c1fe32017df811ef8af10bc
2012-03-13 17:38:50 +09:00
Ken Wakasa 951ab9d7eb Fix typo.
Change-Id: Ia18cd090fd81022041854ce190e36eca49c6b04a
2012-03-09 19:18:59 +09:00
satok f0d5a78388 Merge "Add functions to calculate proximity characters in the native code" 2012-03-07 23:31:17 -08:00
satok 219a514082 Fix a bug on German umlaut digraph correction
Bug: 6129372
Change-Id: I2d629735028c35bf12289f381ada2f4ffe8d7ad3
2012-03-08 13:55:34 +09:00
satok a70ee6e3b3 Add functions to calculate proximity characters in the native code
Bug: 4343280

Change-Id: I17f8f6295b01900948b98680d0267753f33a46cf
2012-03-08 12:55:15 +09:00
Jean Chalard 46a1eec4d8 Add a variable-length header region to the binary format.
Also bump up the format version to 2.

Bug: 5686638
Change-Id: I3aafdd7e42c422202122998ec093280051aa8e07
2012-03-06 17:37:28 +09:00
Tadashi G. Takaoka d1dbdb6b20 Make some debug aid functions to inline
Change-Id: I973f9d4a3989f3d2b797ad26f9d006c0f2c613b5
2012-03-06 15:51:32 +09:00
satok bb0bd66942 Fix correction utility
Bug: 6096247

Change-Id: Ie17c60dde9bd081790b79312ce8d96d292c5128c
2012-03-02 12:34:17 +09:00
Jean Chalard ad290d6505 Activate bigram predictions from the binary dictionary
Change-Id: If1cc50539d7677b854b1cd3bea3423c8c0865de5
2012-02-15 19:51:24 -08:00
Jean-Baptiste Queru 26e315785d resolved conflicts for merge of 3ad1145a to master
Change-Id: I13159b95f90c5095373951bf9e91b7dbf8b14558
2012-02-14 13:09:49 -08:00
satok a85f4929cd Support multi words suggestion
result: I4d097612db2f2a93522

Change-Id: Iedbb24f431dac43e52b6dcce8cb610a75e0ca46e
2012-02-08 13:00:31 +09:00
Ken Wakasa 4c5daa8a55 Fix indent
Change-Id: I77b4fb3a47faae7d4ad45d9903556e77a2fc7163
2012-02-06 21:51:31 +09:00
Tadashi G. Takaoka a27cb62390 Merge "Use C++ template for min/max" 2012-02-05 17:38:30 -08:00
Tadashi G. Takaoka 09baa36f7d Use C++ template for min/max
To be more friendly for off-device regression test.

Change-Id: I7edf4c9de73915aad9c1760ace7df3177ed3c4e9
2012-02-06 09:41:41 +09:00
satok 1b9fa942b4 Support correction conversion from skip to additional proximity
Result:  I34bedff6149a6a4e01

Change-Id: I46d528f228a969a0a996299221622627f43c55ec
2012-02-03 20:00:15 +09:00
satok 04fd04d6ff Separate the logic for touch caribration again
Change-Id: I59c6244674caa899af559402290160ad411d1bb5
2012-02-02 19:03:04 +09:00
satok e05b3f4b3a Support additional proximity characters
Change-Id: Ifbe0d7e4eafea1926bbce968eae4724dd5769689
2012-02-02 16:07:16 +09:00
Bhanu Chetlapalli b093cc4824 [MIPS] Remove reference to NDK
Change-Id: I6137c4a93b29a8906abb5bd0f320dd3f37fdea08
Signed-Off-By: Bhanu Chetlapalli <bhanu@mips.com>
2012-01-31 12:08:27 -08:00
satok 1f6b52e76c Implement multi words suggestions step1
Change-Id: I96e8e1b0d9ccc0ed13d53c40300d8c19bcb7af5b
2012-01-30 18:01:25 +09:00
satok 9955716d0b Merge missing space and mistyped space correction algorithm
Change-Id: Idd64d38d3d29be24748f9c0359667883698a5756
2012-01-27 16:54:15 +09:00
satok 3c09bb18d9 Merge multiple words suggestions algorithm
Change-Id: I70d85b90ddaa28a41e9679f445bc14ef9ff50f16
2012-01-26 18:59:51 +09:00
satok 7409d151a1 Refactor words priority queue
Change-Id: I14b7ef39263ad2b1d5ec087bc80b7b8d7c30abe7
2012-01-26 16:13:25 +09:00
satok f8ce19c29d Merge "Cleanup unused code" 2012-01-25 22:12:52 -08:00
satok 1c03306994 Cleanup unused code
Change-Id: I6c840f9ed170919e48d1c576cd0a48777ad44030
2012-01-26 14:56:52 +09:00
satok 61b31a646e Merge "Do other error correction for the second word of two word correction" 2012-01-25 05:48:15 -08:00
satok 8330b488e9 Do other error correction for the second word of two word correction
result: I4e0b68a12190933f9

Change-Id: I98afce6fe4d5bde97392146d204370ba31a72566
2012-01-25 22:30:37 +09:00
Jean Chalard 0bfe359ee4 Add a test for auto-correction.
Fix two related subtle bugs:
- Stop singling out fat-finger-only corrections for rejection
  when touch coordinates are not available.
- Remove a racy check that would happen only in debug mode

Change-Id: Ic904f9b27c091ca6b369052c4e65a630bff81257
2012-01-25 19:29:40 +09:00
Jean-Baptiste Queru 11c41216f1 Merge 2577fca1
Change-Id: Ie2c9f6c2eafb59dff95db8954481ce49c87a6d44
2012-01-23 09:06:00 -08:00
satok bd6ccdd5f0 Clean up two word correction
Change-Id: I5cd2697d7f61b81aff0c249df01479d86ad0fba5
2012-01-23 15:35:03 +09:00
satok 54af64ae92 Two words error correction with other error correction for the first word
+1      26
-1       5
+2       0
-2       0
+3       0
-3       0
+4       9
-4      25
+5      20
-5      21
+6      13
-6       6
+7      15
-7      26

Change-Id: Iad682d417a6bb42b11ca6e60157698ca66fef3ff
2012-01-19 19:17:29 +09:00
Robert CH Chou bd1ed5b859 Make the JNI lib an optional module
Make it a user module will force it installed no matter the
IME is actually required by the product or not. Replace the
user by optional and add requiring the libjni_latinime by using
LOCAL_REQUIRED_MODULES

Change-Id: Ibfc37cf2e2391021d45538c7cea342894b56fbf8
2012-01-19 10:02:25 +08:00
satok 29dc80614b Prepair for advanced two words error correction
Change-Id: I4c8a21f0f6e349ddafd9b402583321a60855cfe8
2012-01-17 16:00:55 +09:00
satok a161a4afd6 Use edit distance for transposing correction
+1      73
-1       4
+2       0
-2       0
+3       0
-3       0
+4      11
-4      19
+5       9
-5       3
+6       2
-6      63
+7       2
-7       8

Change-Id: I269cd2386f451f8932e4e0ae66223e794fdfa862
2012-01-17 13:14:35 +09:00
Jean Chalard 82ddd16889 Stop avoiding adding what the user typed to candidates
There does not seem to be any reason other than a historical
one to avoid doing this, but it takes processing power and
makes things more complicated.

This has a very limited impact on regression tests:
5 -> 3 [He,           the]
5 -> 3 [An,           an]
5 -> 3 [Where,        where]
5 -> 3 [This,         this]
7 -> 1 [wAtch,        watch]
6 -> 4 [oveNs,        oceans]
5 -> 1 [Ahere,        Where]
7 -> 1 [Hast,         Hast]
7 -> 5 [bjp,          bill]
5 -> 1 [What,         What]
5 -> 3 [Sound,        So und]
7 -> 3 [causalities,  casualties]
7 -> 3 [discontentment, discontent]
7 -> 3 [irregardless, regardless]

5 -> 1 : 2
5 -> 3 : 5
6 -> 4 : 1
7 -> 1 : 2
7 -> 3 : 3
7 -> 5 : 1

+1       4
-1       0
+2       0
-2       0
+3       8
-3       0
+4       1
-4       0
+5       1
-5       7
+6       0
-6       1
+7       0
-7       6

Change-Id: I6407cf922f27bbd3992df11d63690e71fc61111b
2012-01-16 18:58:10 +09:00
satok 67e13976b7 Merge "Store suggestions for each input length for missing space algorithm etc." 2012-01-16 00:18:37 -08:00
satok 6ad15fcd15 Store suggestions for each input length for missing space algorithm etc.
Change-Id: Ief8f6ddd29e043744863e5b9be3a51a70987291c
2012-01-16 17:11:17 +09:00
Jean Chalard 4c0eca6e41 Read multi-byte char group counts
Change-Id: Idc62382f1c814e9bd1466c9f7dda1fcc8ba4137d
2012-01-16 15:59:33 +09:00
Jean Chalard 6d4198107b Remove a bunch of obsolete methods.
Change-Id: I218007bf411489d1d648fd9b8b408c5d27c41811
2012-01-16 15:19:47 +09:00
Jean Chalard 512c669fee Fix a native crash with shortcuts
Creation of the TerminalAttributes object failed to take into
account that there may be children on this node.

Change-Id: I8224a1a51532d1a40a8555f46425e3744388326b
2012-01-13 20:50:43 +09:00
satok 9fb6f47a6a New LOG lib
Change-Id: I977e7e10fa58c0a64ca0c3c7b5cb2272446e3efe
2012-01-13 18:04:15 +09:00
satok b960477952 Use placement new to construct the queue
Change-Id: I455f9954165bd4524f2883db7ea24a6fed3015f9
2012-01-13 17:32:55 +09:00
satok be0cf72253 Move auto correction thresthold to the native code
bug: 5858137

Change-Id: Ic4b6270c6e51ef4ed25a6a1d8ddd7fdfa70fd78d
2012-01-12 19:56:15 +09:00
Jean Chalard b0c49b7684 Actually add shortcut targets to the suggestions (A4)
Change-Id: Ia6f551d36b2897863e7faf5143bc319522b0668e
2012-01-06 15:21:11 +09:00
Jean Chalard e1e5a3fa2f Merge "Fill in the format-specific shortcut reading methods (A3)" 2012-01-05 21:36:20 -08:00
Jean Chalard 8e464d41cc Fill in the format-specific shortcut reading methods (A3)
Change-Id: Ie5d8b344ed46873c92f3ef878a1e45017eb699c6
2012-01-06 14:09:54 +09:00
Ken Wakasa ecbf3f2cbc Merge "Fix indentations." 2012-01-05 19:29:22 -08:00
Ken Wakasa e12e9b5b69 Fix indentations.
Change-Id: I25c26e2fe50427d11d97b6204174a4f651963d24
2012-01-06 12:24:38 +09:00
Jean Chalard cf9dbbdd1a Add methods to read shortcuts from the binary dict (A2)
This contains stubs only, it does not work yet, however it
doesn't break anything.

Change-Id: If912ae84ff3ccd7a2d6588ffd6fbb9974f87ef3d
2012-01-06 12:24:30 +09:00
Jean Chalard c8c6585f21 Add a forgotten constant
This fixes the build.
A constant was used before it was declared in another file.

Change-Id: I72dfca2f76f0c3b7dd64072d062cd48c9bfcbd56
2011-12-27 12:58:49 +09:00
Jean Chalard e0e339699a Skip shortcut targets if any. (A1)
Change-Id: I1e83bba2b36bdc0429debb22425ce75001e61c81
2011-12-27 12:22:20 +09:00
satok 1a6da631ab Prepare for proximity + two word correction No2
Change-Id: Idfa1413e853299f1db459ef07da3efa932047981
2011-12-19 17:12:20 +09:00
satok 744dab691e Prepare for proximity + two words suggestion
Change-Id: I3637f9bec1f4a3c5953498c4562e1f17a7bf593c
2011-12-16 17:32:53 +09:00
satok a7e5a5a6b9 Add words priority queue pool
Change-Id: I152df7b876a1756b69ded2ca4fb3ee26b38c971f
2011-12-15 19:20:28 +09:00
satok 4d355989bd Add a functionality to limit the max correction errors
Before
==== test finished, terminate logcat =====
(0)  121.97 (0.28%)
(1)  42032.07 (95.46%)
(2)  11.03 (0.03%)
(3)  12.19 (0.03%)
(4)  10.02 (0.02%)
(5)  1417.41 (3.22%)
(6)  258.43 (0.59%)
(20) 50.20 (0.11%)
Total 44033.07 (sum of others 43913.32)

After
==== test finished, terminate logcat =====
(0)  110.81 (0.29%)
(1)  36416.11 (94.47%)
(2)  10.06 (0.03%)
(3)  9.45 (0.02%)
(4)  9.83 (0.03%)
(5)  1535.52 (3.98%)
(6)  290.25 (0.75%)
(20) 40.57 (0.11%)
Total 38546.83 (sum of others 38422.60)

Change-Id: Iffd24ce0b2dc422c8c6085d5be5f6bfdaf59ca7d
2011-12-15 16:00:08 +09:00
satok d03317c4be Prune traversing a bit agressively and add a flag not to do auto completion
+1       1
-1       2
+2       0
-2       0
+3       0
-3       0
+4       6
-4       1
+5       4
-5       3
+6       3
-6      10
+7       7
-7       5

Before:
Total 42936.28 (sum of others 42814.63)

After:
Total 40860.56 (sum of others 40733.92)

Change-Id: I6a3d52f31ec181970083358280c3ebaca0a1f63e
2011-12-15 12:09:25 +09:00
satok 1147c7bac9 Unbundle members in unigram_dictionary
Change-Id: Id737d943d20e3de3db568162caf40d3e956c7fae
2011-12-14 19:45:51 +09:00
Ken Wakasa d5e35acffb Reorganize LatinIME native build directory structure. Now it got NDK friendly.
Change-Id: I0f62ce8a6a4d2b6134db698f8b8d0576616e524d
2011-12-13 21:16:20 +09:00
satok 16379df633 Use priority queue for native string buffer
+1 2
-6 2

Performance

before

==== test finished, terminate logcat =====
(0)  100.34 (0.26%)
(1)  37149.26 (95.30%)
(2)  8.43 (0.02%)
(3)  11.18 (0.03%)
(4)  9.92 (0.03%)
(5)  1330.60 (3.41%)
(6)  250.46 (0.64%)
(20) 12.41 (0.03%)
Total 38982.50 (sum of others 38872.59)

after

==== test finished, terminate logcat =====
(0)  97.65 (0.26%)
(1)  35427.43 (95.32%)
(2)  10.30 (0.03%)
(3)  8.95 (0.02%)
(4)  11.01 (0.03%)
(5)  1224.67 (3.30%)
(6)  243.76 (0.66%)
(20) 40.91 (0.11%)
Total 37167.04 (sum of others 37064.68)

Change-Id: Id4d3b88a9cdef765affc52973aeac951ecc6a8ca
2011-12-13 16:32:52 +09:00
satok 0a66397106 am 620b1faf: Merge "Fix the touch calibration bug" into ics-mr1
* commit '620b1faf126d4b5f7cb5c353cebd374d1347fdd4':
  Fix the touch calibration bug
2011-11-17 11:46:27 -08:00
satok 554fdd21a1 Fix the touch calibration bug
Bug: 5629373
Change-Id: Iacc746e1cc97bf305e1f287cf7431b7115607eeb
2011-11-17 15:56:41 +09:00
Tadashi G. Takaoka 6e3cb27cff Reorganize char_utils.h and basechars.h
* make BASE_CHARS[] const
  * add several inline menthods for ASCII character handling

Change-Id: I49664f219af88faf0aef43ac350cfc216570b185
2011-11-11 19:44:08 +09:00