diff options
Diffstat (limited to 'newlib/libc/stdlib/mbtowc_r.c')
-rw-r--r-- | newlib/libc/stdlib/mbtowc_r.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/newlib/libc/stdlib/mbtowc_r.c b/newlib/libc/stdlib/mbtowc_r.c deleted file mode 100644 index 7d718c8..0000000 --- a/newlib/libc/stdlib/mbtowc_r.c +++ /dev/null @@ -1,206 +0,0 @@ -#include <stdlib.h> -#include <locale.h> -#include "mbctype.h" - -#ifdef MB_CAPABLE -typedef enum { ESCAPE, DOLLAR, BRACKET, AT, B, J, - NUL, JIS_CHAR, OTHER, JIS_C_NUM } JIS_CHAR_TYPE; -typedef enum { ASCII, A_ESC, A_ESC_DL, JIS, JIS_1, JIS_2, J_ESC, J_ESC_BR, - J2_ESC, J2_ESC_BR, DONE, INV, JIS_S_NUM } JIS_STATE; -typedef enum { COPY_A, COPY_J, COPY_J2, MAKE_A, MAKE_J, NOOP, EMPTY, ERROR } JIS_ACTION; - -/************************************************************************************** - * state/action tables for processing JIS encoding - * Where possible, switches to JIS are grouped with proceding JIS characters and switches - * to ASCII are grouped with preceding JIS characters. Thus, maximum returned length - * is 2 (switch to JIS) + 2 (JIS characters) + 2 (switch back to ASCII) = 6. - *************************************************************************************/ - -static JIS_STATE JIS_state_table[JIS_S_NUM][JIS_C_NUM] = { -/* ESCAPE DOLLAR BRACKET AT B J NUL JIS_CHAR OTHER */ -/* ASCII */ { A_ESC, DONE, DONE, DONE, DONE, DONE, DONE, DONE, DONE }, -/* A_ESC */ { DONE, A_ESC_DL, DONE, DONE, DONE, DONE, DONE, DONE, DONE }, -/* A_ESC_DL */{ DONE, DONE, DONE, JIS, JIS, DONE, DONE, DONE, DONE }, -/* JIS */ { J_ESC, JIS_1, JIS_1, JIS_1, JIS_1, JIS_1, INV, JIS_1, INV }, -/* JIS_1 */ { INV, JIS_2, JIS_2, JIS_2, JIS_2, JIS_2, INV, JIS_2, INV }, -/* JIS_2 */ { J2_ESC, DONE, DONE, DONE, DONE, DONE, INV, DONE, DONE }, -/* J_ESC */ { INV, INV, J_ESC_BR, INV, INV, INV, INV, INV, INV }, -/* J_ESC_BR */{ INV, INV, INV, INV, ASCII, ASCII, INV, INV, INV }, -/* J2_ESC */ { INV, INV, J2_ESC_BR,INV, INV, INV, INV, INV, INV }, -/* J2_ESC_BR*/{ INV, INV, INV, INV, DONE, DONE, INV, INV, INV }, -}; - -static JIS_ACTION JIS_action_table[JIS_S_NUM][JIS_C_NUM] = { -/* ESCAPE DOLLAR BRACKET AT B J NUL JIS_CHAR OTHER */ -/* ASCII */ { NOOP, COPY_A, COPY_A, COPY_A, COPY_A, COPY_A, EMPTY, COPY_A, COPY_A}, -/* A_ESC */ { COPY_A, NOOP, COPY_A, COPY_A, COPY_A, COPY_A, COPY_A, COPY_A, COPY_A}, -/* A_ESC_DL */{ COPY_A, COPY_A, COPY_A, MAKE_J, MAKE_J, COPY_A, COPY_A, COPY_A, COPY_A}, -/* JIS */ { NOOP, NOOP, NOOP, NOOP, NOOP, NOOP, ERROR, NOOP, ERROR }, -/* JIS_1 */ { ERROR, NOOP, NOOP, NOOP, NOOP, NOOP, ERROR, NOOP, ERROR }, -/* JIS_2 */ { NOOP, COPY_J2, COPY_J2, COPY_J2, COPY_J2, COPY_J2, ERROR, COPY_J2, COPY_J2}, -/* J_ESC */ { ERROR, ERROR, NOOP, ERROR, ERROR, ERROR, ERROR, ERROR, ERROR }, -/* J_ESC_BR */{ ERROR, ERROR, ERROR, ERROR, NOOP, NOOP, ERROR, ERROR, ERROR }, -/* J2_ESC */ { ERROR, ERROR, NOOP, ERROR, ERROR, ERROR, ERROR, ERROR, ERROR }, -/* J2_ESC_BR*/{ ERROR, ERROR, ERROR, ERROR, COPY_J, COPY_J, ERROR, ERROR, ERROR }, -}; -#endif /* MB_CAPABLE */ - -int -_DEFUN (_mbtowc_r, (r, pwc, s, n, state), - struct _reent *r _AND - wchar_t *pwc _AND - const char *s _AND - size_t n _AND - int *state) -{ - wchar_t dummy; - unsigned char *t = (unsigned char *)s; - - if (pwc == NULL) - pwc = &dummy; - - if (s != NULL && n == 0) - return -1; - -#ifdef MB_CAPABLE - if (r->_current_locale == NULL || - (strlen (r->_current_locale) <= 1)) - { /* fall-through */ } - else if (!strcmp (r->_current_locale, "C-SJIS")) - { - int char1 = *t; - if (s == NULL) - return 0; /* not state-dependent */ - if (_issjis1 (char1)) - { - int char2 = t[1]; - if (n <= 1) - return -1; - if (_issjis2 (char2)) - { - *pwc = (((wchar_t)*t) << 8) + (wchar_t)(*(t+1)); - return 2; - } - else - return -1; - } - } - else if (!strcmp (r->_current_locale, "C-EUCJP")) - { - int char1 = *t; - if (s == NULL) - return 0; /* not state-dependent */ - if (_iseucjp (char1)) - { - int char2 = t[1]; - if (n <= 1) - return -1; - if (_iseucjp (char2)) - { - *pwc = (((wchar_t)*t) << 8) + (wchar_t)(*(t+1)); - return 2; - } - else - return -1; - } - } - else if (!strcmp (r->_current_locale, "C-JIS")) - { - JIS_STATE curr_state; - JIS_ACTION action; - JIS_CHAR_TYPE ch; - unsigned char *ptr; - int i, curr_ch; - - if (s == NULL) - { - *state = 0; - return 1; /* state-dependent */ - } - - curr_state = (*state == 0 ? ASCII : JIS); - ptr = t; - - for (i = 0; i < n; ++i) - { - curr_ch = t[i]; - switch (curr_ch) - { - case ESC_CHAR: - ch = ESCAPE; - break; - case '$': - ch = DOLLAR; - break; - case '@': - ch = AT; - break; - case '(': - ch = BRACKET; - break; - case 'B': - ch = B; - break; - case 'J': - ch = J; - break; - case '\0': - ch = NUL; - break; - default: - if (_isjis (curr_ch)) - ch = JIS_CHAR; - else - ch = OTHER; - } - - action = JIS_action_table[curr_state][ch]; - curr_state = JIS_state_table[curr_state][ch]; - - switch (action) - { - case NOOP: - break; - case EMPTY: - *state = 0; - *pwc = (wchar_t)0; - return i; - case COPY_A: - *state = 0; - *pwc = (wchar_t)*ptr; - return (i + 1); - case COPY_J: - *state = 0; - *pwc = (((wchar_t)*ptr) << 8) + (wchar_t)(*(ptr+1)); - return (i + 1); - case COPY_J2: - *state = 1; - *pwc = (((wchar_t)*ptr) << 8) + (wchar_t)(*(ptr+1)); - return (ptr - t) + 2; - case MAKE_A: - case MAKE_J: - ptr = (char *)(t + i + 1); - break; - case ERROR: - default: - return -1; - } - - } - - return -1; /* n < bytes needed */ - } -#endif /* MB_CAPABLE */ - - /* otherwise this must be the "C" locale or unknown locale */ - if (s == NULL) - return 0; /* not state-dependent */ - - *pwc = (wchar_t)*t; - - if (*t == '\0') - return 0; - - return 1; -} - |