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authorManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-26 16:48:15 +0100
committerManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-26 16:48:15 +0100
commit5f2b09982312c98863eb9a8dfe2c608b81f58259 (patch)
treee5d38581c2f36e1cca02efedd2d85044d77f76f9 /lib/uniwbrk/u-wordbreaks.h
parent3e0814cd9862b89c7a39672672937477bd87ddfb (diff)
Imported Upstream version 0.9.6upstream/0.9.6
Diffstat (limited to 'lib/uniwbrk/u-wordbreaks.h')
-rw-r--r--lib/uniwbrk/u-wordbreaks.h85
1 files changed, 57 insertions, 28 deletions
diff --git a/lib/uniwbrk/u-wordbreaks.h b/lib/uniwbrk/u-wordbreaks.h
index b0fd301e..cdeab0ba 100644
--- a/lib/uniwbrk/u-wordbreaks.h
+++ b/lib/uniwbrk/u-wordbreaks.h
@@ -1,5 +1,5 @@
/* Word breaks in UTF-8/UTF-16/UTF-32 strings.
- Copyright (C) 2009-2010 Free Software Foundation, Inc.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
This program is free software: you can redistribute it and/or modify it
@@ -55,16 +55,12 @@ FUNC (const UNIT *s, size_t n, char *p)
if (last_char_prop == WBP_CR && prop == WBP_LF)
/* *p = 0 */;
/* Break before and after newlines. */
- else if (last_char_prop >= WBP_NEWLINE
- /* same as:
- last_char_prop == WBP_CR
- || last_char_prop == WBP_LF
- || last_char_prop == WBP_NEWLINE */
- || prop >= WBP_NEWLINE
- /* same as:
- prop == WBP_CR
- || prop == WBP_LF
- || prop == WBP_NEWLINE */)
+ else if ((last_char_prop == WBP_CR
+ || last_char_prop == WBP_LF
+ || last_char_prop == WBP_NEWLINE)
+ || (prop == WBP_CR
+ || prop == WBP_LF
+ || prop == WBP_NEWLINE))
*p = 1;
/* Ignore Format and Extend characters. */
else if (!(prop == WBP_EXTEND || prop == WBP_FORMAT))
@@ -73,38 +69,66 @@ FUNC (const UNIT *s, size_t n, char *p)
secondlast last current
- ALetter (MidLetter | MidNumLet) × ALetter (WB7)
- ALetter × (MidLetter | MidNumLet) ALetter (WB6)
- Numeric (MidNum | MidNumLet) × Numeric (WB11)
- Numeric × (MidNum | MidNumLet) Numeric (WB12)
- ALetter × ALetter (WB5)
- ALetter × Numeric (WB9)
- Numeric × ALetter (WB10)
+ (ALetter | HL) (MidLetter | MidNumLet | SQ) × (ALetter | HL) (WB7)
+ (ALetter | HL) × (MidLetter | MidNumLet | SQ) (ALetter | HL) (WB6)
+ Numeric (MidNum | MidNumLet | SQ) × Numeric (WB11)
+ Numeric × (MidNum | MidNumLet | SQ) Numeric (WB12)
+ HL × DQ HL (WB7b)
+ HL DQ × HL (WB7c)
+ (ALetter | HL) × (ALetter | HL) (WB5)
+ (ALetter | HL) × Numeric (WB9)
+ Numeric × (ALetter | HL) (WB10)
Numeric × Numeric (WB8)
+ HL × SQ (WB7a)
Katakana × Katakana (WB13)
- (ALetter | Numeric | Katakana) × ExtendNumLet (WB13a)
+ (ALetter | HL | Numeric | Katakana) × ExtendNumLet (WB13a)
ExtendNumLet × ExtendNumLet (WB13a)
- ExtendNumLet × (ALetter | Numeric | Katakana) (WB13b)
+ ExtendNumLet × (ALetter | HL | Numeric | Katakana) (WB13b)
+ Regional_Indicator × Regional_Indicator (WB13c)
*/
/* No break across certain punctuation. Also, disable word
breaks that were recognized earlier (due to lookahead of
only one complex character). */
- if ((prop == WBP_ALETTER
+ if (((prop == WBP_ALETTER
+ || prop == WBP_HL)
&& (last_compchar_prop == WBP_MIDLETTER
- || last_compchar_prop == WBP_MIDNUMLET)
- && secondlast_compchar_prop == WBP_ALETTER)
+ || last_compchar_prop == WBP_MIDNUMLET
+ || last_compchar_prop == WBP_SQ)
+ && (secondlast_compchar_prop == WBP_ALETTER
+ || secondlast_compchar_prop == WBP_HL))
|| (prop == WBP_NUMERIC
&& (last_compchar_prop == WBP_MIDNUM
- || last_compchar_prop == WBP_MIDNUMLET)
- && secondlast_compchar_prop == WBP_NUMERIC))
+ || last_compchar_prop == WBP_MIDNUMLET
+ || last_compchar_prop == WBP_SQ)
+ && secondlast_compchar_prop == WBP_NUMERIC)
+ || (prop == WBP_HL
+ && last_compchar_prop == WBP_DQ
+ && secondlast_compchar_prop == WBP_HL))
{
*last_compchar_ptr = 0;
/* *p = 0; */
}
+ /* Break after Format and Extend characters. */
+ else if (last_compchar_prop == WBP_EXTEND
+ || last_compchar_prop == WBP_FORMAT)
+ *p = 1;
else
{
+ /* Normalize property value to table index,
+ skipping 5 properties: WBP_EXTEND,
+ WBP_FORMAT, WBP_NEWLINE, WBP_CR, and
+ WBP_LF. */
+ int last_compchar_prop_index = last_compchar_prop;
+ int prop_index = prop;
+
+ if (last_compchar_prop_index >= WBP_EXTEND)
+ last_compchar_prop_index -= 5;
+
+ if (prop_index >= WBP_EXTEND)
+ prop_index -= 5;
+
/* Perform a single table lookup. */
- if (uniwbrk_table[last_compchar_prop][prop])
+ if (uniwbrk_table[last_compchar_prop_index][prop_index])
*p = 1;
/* else *p = 0; */
}
@@ -112,8 +136,13 @@ FUNC (const UNIT *s, size_t n, char *p)
}
last_char_prop = prop;
- /* Ignore Format and Extend characters, except at the start of the string. */
- if (last_compchar_prop < 0 || !(prop == WBP_EXTEND || prop == WBP_FORMAT))
+ /* Ignore Format and Extend characters, except at the start
+ of the line. */
+ if (last_compchar_prop < 0
+ || last_compchar_prop == WBP_CR
+ || last_compchar_prop == WBP_LF
+ || last_compchar_prop == WBP_NEWLINE
+ || !(prop == WBP_EXTEND || prop == WBP_FORMAT))
{
secondlast_compchar_prop = last_compchar_prop;
last_compchar_prop = prop;