diff options
Diffstat (limited to 'lib/unilbrk/u32-possible-linebreaks.c')
| -rw-r--r-- | lib/unilbrk/u32-possible-linebreaks.c | 216 |
1 files changed, 108 insertions, 108 deletions
diff --git a/lib/unilbrk/u32-possible-linebreaks.c b/lib/unilbrk/u32-possible-linebreaks.c index c843e12..c375a0c 100644 --- a/lib/unilbrk/u32-possible-linebreaks.c +++ b/lib/unilbrk/u32-possible-linebreaks.c @@ -1,5 +1,5 @@ /* Line breaking of UTF-32 strings. - Copyright (C) 2001-2003, 2006-2009 Free Software Foundation, Inc. + Copyright (C) 2001-2003, 2006-2010 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2001. This program is free software: you can redistribute it and/or modify it @@ -40,117 +40,117 @@ u32_possible_linebreaks (const uint32_t *s, size_t n, const char *encoding, char int prop = unilbrkprop_lookup (uc); if (prop == LBP_BK) - { - /* Mandatory break. */ - *p = UC_BREAK_MANDATORY; - last_prop = LBP_BK; - seen_space = NULL; - seen_space2 = NULL; - } + { + /* Mandatory break. */ + *p = UC_BREAK_MANDATORY; + last_prop = LBP_BK; + seen_space = NULL; + seen_space2 = NULL; + } else - { - char *q; + { + char *q; - /* Resolve property values whose behaviour is not fixed. */ - switch (prop) - { - case LBP_AI: - /* Resolve ambiguous. */ - prop = LBP_AI_REPLACEMENT; - break; - case LBP_CB: - /* This is arbitrary. */ - prop = LBP_ID; - break; - case LBP_SA: - /* We don't handle complex scripts yet. - Treat LBP_SA like LBP_XX. */ - case LBP_XX: - /* This is arbitrary. */ - prop = LBP_AL; - break; - } + /* Resolve property values whose behaviour is not fixed. */ + switch (prop) + { + case LBP_AI: + /* Resolve ambiguous. */ + prop = LBP_AI_REPLACEMENT; + break; + case LBP_CB: + /* This is arbitrary. */ + prop = LBP_ID; + break; + case LBP_SA: + /* We don't handle complex scripts yet. + Treat LBP_SA like LBP_XX. */ + case LBP_XX: + /* This is arbitrary. */ + prop = LBP_AL; + break; + } - /* Deal with spaces and combining characters. */ - q = p; - if (prop == LBP_SP) - { - /* Don't break just before a space. */ - *p = UC_BREAK_PROHIBITED; - seen_space2 = seen_space; - seen_space = p; - } - else if (prop == LBP_ZW) - { - /* Don't break just before a zero-width space. */ - *p = UC_BREAK_PROHIBITED; - last_prop = LBP_ZW; - seen_space = NULL; - seen_space2 = NULL; - } - else if (prop == LBP_CM) - { - /* Don't break just before a combining character, except immediately after a - zero-width space. */ - if (last_prop == LBP_ZW) - { - /* Break after zero-width space. */ - *p = UC_BREAK_POSSIBLE; - /* A combining character turns a preceding space into LBP_ID. */ - last_prop = LBP_ID; - } - else - { - *p = UC_BREAK_PROHIBITED; - /* A combining character turns a preceding space into LBP_ID. */ - if (seen_space != NULL) - { - q = seen_space; - seen_space = seen_space2; - prop = LBP_ID; - goto lookup_via_table; - } - } - } - else - { - lookup_via_table: - /* prop must be usable as an index for table 7.3 of UTR #14. */ - if (!(prop >= 0 && prop < sizeof (unilbrk_table) / sizeof (unilbrk_table[0]))) - abort (); + /* Deal with spaces and combining characters. */ + q = p; + if (prop == LBP_SP) + { + /* Don't break just before a space. */ + *p = UC_BREAK_PROHIBITED; + seen_space2 = seen_space; + seen_space = p; + } + else if (prop == LBP_ZW) + { + /* Don't break just before a zero-width space. */ + *p = UC_BREAK_PROHIBITED; + last_prop = LBP_ZW; + seen_space = NULL; + seen_space2 = NULL; + } + else if (prop == LBP_CM) + { + /* Don't break just before a combining character, except immediately after a + zero-width space. */ + if (last_prop == LBP_ZW) + { + /* Break after zero-width space. */ + *p = UC_BREAK_POSSIBLE; + /* A combining character turns a preceding space into LBP_ID. */ + last_prop = LBP_ID; + } + else + { + *p = UC_BREAK_PROHIBITED; + /* A combining character turns a preceding space into LBP_ID. */ + if (seen_space != NULL) + { + q = seen_space; + seen_space = seen_space2; + prop = LBP_ID; + goto lookup_via_table; + } + } + } + else + { + lookup_via_table: + /* prop must be usable as an index for table 7.3 of UTR #14. */ + if (!(prop >= 0 && prop < sizeof (unilbrk_table) / sizeof (unilbrk_table[0]))) + abort (); - if (last_prop == LBP_BK) - { - /* Don't break at the beginning of a line. */ - *q = UC_BREAK_PROHIBITED; - } - else if (last_prop == LBP_ZW) - { - /* Break after zero-width space. */ - *q = UC_BREAK_POSSIBLE; - } - else - { - switch (unilbrk_table [last_prop] [prop]) - { - case D: - *q = UC_BREAK_POSSIBLE; - break; - case I: - *q = (seen_space != NULL ? UC_BREAK_POSSIBLE : UC_BREAK_PROHIBITED); - break; - case P: - *q = UC_BREAK_PROHIBITED; - break; - default: - abort (); - } - } - last_prop = prop; - seen_space = NULL; - seen_space2 = NULL; - } - } + if (last_prop == LBP_BK) + { + /* Don't break at the beginning of a line. */ + *q = UC_BREAK_PROHIBITED; + } + else if (last_prop == LBP_ZW) + { + /* Break after zero-width space. */ + *q = UC_BREAK_POSSIBLE; + } + else + { + switch (unilbrk_table [last_prop] [prop]) + { + case D: + *q = UC_BREAK_POSSIBLE; + break; + case I: + *q = (seen_space != NULL ? UC_BREAK_POSSIBLE : UC_BREAK_PROHIBITED); + break; + case P: + *q = UC_BREAK_PROHIBITED; + break; + default: + abort (); + } + } + last_prop = prop; + seen_space = NULL; + seen_space2 = NULL; + } + } s++; p++; |