aboutsummaryrefslogtreecommitdiff
path: root/newlib/libc/stdlib/mbtowc_r.c
diff options
context:
space:
mode:
Diffstat (limited to 'newlib/libc/stdlib/mbtowc_r.c')
-rw-r--r--newlib/libc/stdlib/mbtowc_r.c208
1 files changed, 0 insertions, 208 deletions
diff --git a/newlib/libc/stdlib/mbtowc_r.c b/newlib/libc/stdlib/mbtowc_r.c
deleted file mode 100644
index 4bf302359..000000000
--- a/newlib/libc/stdlib/mbtowc_r.c
+++ /dev/null
@@ -1,208 +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;
- if (s == NULL)
- return 0; /* not state-dependent */
- char1 = *t;
- 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;
- if (s == NULL)
- return 0; /* not state-dependent */
- char1 = *t;
- 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;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-25 21:45:25 +0000