diff options
Diffstat (limited to 'lib/unicase/u-casemap.h')
| -rw-r--r-- | lib/unicase/u-casemap.h | 150 |
1 files changed, 70 insertions, 80 deletions
diff --git a/lib/unicase/u-casemap.h b/lib/unicase/u-casemap.h index fba36655..abb67820 100644 --- a/lib/unicase/u-casemap.h +++ b/lib/unicase/u-casemap.h @@ -1,5 +1,5 @@ /* Case mapping for UTF-8/UTF-16/UTF-32 strings (locale dependent). - Copyright (C) 2009-2025 Free Software Foundation, Inc. + Copyright (C) 2009-2026 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2009. This file is free software. @@ -35,10 +35,7 @@ FUNC (const UNIT *s, size_t n, { /* The result being accumulated. */ UNIT *result; - size_t length; size_t allocated; - - /* Initialize the accumulator. */ if (nf != NULL || resultbuf == NULL) { result = NULL; @@ -49,7 +46,7 @@ FUNC (const UNIT *s, size_t n, result = resultbuf; allocated = *lengthp; } - length = 0; + size_t length = 0; { const UNIT *s_end = s + n; @@ -97,10 +94,10 @@ FUNC (const UNIT *s, size_t n, { /* Does the context apply? */ int context = rule->context; - bool applies; - if (context < 0) context = - context; + + bool applies; switch (context) { case SCC_ALWAYS: @@ -281,15 +278,65 @@ FUNC (const UNIT *s, size_t n, found_mapping: /* Found the mapping: uc maps to mapped_uc[0..mapped_count-1]. */ - { - unsigned int i; + for (unsigned int i = 0; i < mapped_count; i++) + { + ucs4_t muc = mapped_uc[i]; - for (i = 0; i < mapped_count; i++) + /* Append muc to the result accumulator. */ + if (length < allocated) + { + int ret = U_UCTOMB (result + length, muc, allocated - length); + if (ret == -1) + { + errno = EINVAL; + goto fail; + } + if (ret >= 0) + { + length += ret; + goto done_appending; + } + } { - ucs4_t muc = mapped_uc[i]; - - /* Append muc to the result accumulator. */ - if (length < allocated) + size_t old_allocated = allocated; + size_t new_allocated = 2 * old_allocated; + if (new_allocated < 64) + new_allocated = 64; + if (new_allocated < old_allocated) /* integer overflow? */ + abort (); + { + UNIT *larger_result; + if (result == NULL) + { + larger_result = (UNIT *) malloc (new_allocated * sizeof (UNIT)); + if (larger_result == NULL) + { + errno = ENOMEM; + goto fail; + } + } + else if (result == resultbuf) + { + larger_result = (UNIT *) malloc (new_allocated * sizeof (UNIT)); + if (larger_result == NULL) + { + errno = ENOMEM; + goto fail; + } + U_CPY (larger_result, resultbuf, length); + } + else + { + larger_result = + (UNIT *) realloc (result, new_allocated * sizeof (UNIT)); + if (larger_result == NULL) + { + errno = ENOMEM; + goto fail; + } + } + result = larger_result; + allocated = new_allocated; { int ret = U_UCTOMB (result + length, muc, allocated - length); if (ret == -1) @@ -297,69 +344,15 @@ FUNC (const UNIT *s, size_t n, errno = EINVAL; goto fail; } - if (ret >= 0) - { - length += ret; - goto done_appending; - } - } - { - size_t old_allocated = allocated; - size_t new_allocated = 2 * old_allocated; - if (new_allocated < 64) - new_allocated = 64; - if (new_allocated < old_allocated) /* integer overflow? */ - abort (); - { - UNIT *larger_result; - if (result == NULL) - { - larger_result = (UNIT *) malloc (new_allocated * sizeof (UNIT)); - if (larger_result == NULL) - { - errno = ENOMEM; - goto fail; - } - } - else if (result == resultbuf) - { - larger_result = (UNIT *) malloc (new_allocated * sizeof (UNIT)); - if (larger_result == NULL) - { - errno = ENOMEM; - goto fail; - } - U_CPY (larger_result, resultbuf, length); - } - else - { - larger_result = - (UNIT *) realloc (result, new_allocated * sizeof (UNIT)); - if (larger_result == NULL) - { - errno = ENOMEM; - goto fail; - } - } - result = larger_result; - allocated = new_allocated; - { - int ret = U_UCTOMB (result + length, muc, allocated - length); - if (ret == -1) - { - errno = EINVAL; - goto fail; - } - if (ret < 0) - abort (); - length += ret; - goto done_appending; - } + if (ret < 0) + abort (); + length += ret; + goto done_appending; } } - done_appending: ; } - } + done_appending: ; + } if (!uc_is_case_ignorable (uc)) last_char_except_ignorable = uc; @@ -377,9 +370,8 @@ FUNC (const UNIT *s, size_t n, if (nf != NULL) { /* Finally, normalize the result. */ - UNIT *normalized_result; - - normalized_result = U_NORMALIZE (nf, result, length, resultbuf, lengthp); + UNIT *normalized_result = + U_NORMALIZE (nf, result, length, resultbuf, lengthp); if (normalized_result == NULL) goto fail; @@ -403,9 +395,7 @@ FUNC (const UNIT *s, size_t n, else if (result != resultbuf && length < allocated) { /* Shrink the allocated memory if possible. */ - UNIT *memory; - - memory = (UNIT *) realloc (result, length * sizeof (UNIT)); + UNIT *memory = (UNIT *) realloc (result, length * sizeof (UNIT)); if (memory != NULL) result = memory; } |