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php5  5.3.10
Defines | Functions | Variables
mbfilter_euc_tw.c File Reference
#include "mbfilter.h"
#include "mbfilter_euc_tw.h"
#include "unicode_table_cns11643.h"

Go to the source code of this file.

Defines

#define CK(statement)   do { if ((statement) < 0) return (-1); } while (0)

Functions

static int mbfl_filt_ident_euctw (int c, mbfl_identify_filter *filter)
int mbfl_filt_conv_euctw_wchar (int c, mbfl_convert_filter *filter)
int mbfl_filt_conv_wchar_euctw (int c, mbfl_convert_filter *filter)

Variables

static const unsigned char mblen_table_euctw []
static const char * mbfl_encoding_euc_tw_aliases [] = {"EUC_TW", "eucTW", "x-euc-tw", NULL}
const mbfl_encoding mbfl_encoding_euc_tw

Define Documentation

#define CK (   statement)    do { if ((statement) < 0) return (-1); } while (0)

Definition at line 97 of file mbfilter_euc_tw.c.


Function Documentation

int mbfl_filt_conv_euctw_wchar ( int  c,
mbfl_convert_filter *  filter 
)

Definition at line 103 of file mbfilter_euc_tw.c.

{
       int c1, s, w, plane;

       switch (filter->status) {
       case 0:
              if (c >= 0 && c < 0x80) {   /* latin */
                     CK((*filter->output_function)(c, filter->data));
              } else if (c > 0xa0 && c < 0xff) { /* dbcs first byte */
                     filter->status = 1;
                     filter->cache = c;
              } else if (c == 0x8e) {     /* mbcs first byte */
                     filter->status = 2;
                     filter->cache = c;
              } else {
                     w = c & MBFL_WCSGROUP_MASK;
                     w |= MBFL_WCSGROUP_THROUGH;
                     CK((*filter->output_function)(w, filter->data));
              }
              break;

       case 1:              /* mbcs second byte */
              filter->status = 0;
              c1 = filter->cache;
              if (c > 0xa0 && c < 0xff) {
                     w = (c1 - 0xa1)*94 + (c - 0xa1);
                     if (w >= 0 && w < cns11643_1_ucs_table_size) {
                            w = cns11643_1_ucs_table[w];
                     } else {
                            w = 0;
                     }
                     if (w <= 0) {
                            w = (c1 << 8) | c;
                            w &= MBFL_WCSPLANE_MASK;
                            w |= MBFL_WCSPLANE_CNS11643;
                     }
                     CK((*filter->output_function)(w, filter->data));
              } else if ((c >= 0 && c < 0x21) || c == 0x7f) {         /* CTLs */
                     CK((*filter->output_function)(c, filter->data));
              } else {
                     w = (c1 << 8) | c;
                     w &= MBFL_WCSGROUP_MASK;
                     w |= MBFL_WCSGROUP_THROUGH;
                     CK((*filter->output_function)(w, filter->data));
              }
              break;

       case 2:       /* got 0x8e,  first char */
              c1 = filter->cache;
              if ((c >= 0 && c < 0x21) || c == 0x7f) {         /* CTLs */
                     CK((*filter->output_function)(c, filter->data));
                     filter->status = 0;
              } else if (c > 0xa0 && c < 0xaf) {
                     filter->status = 3;
                     filter->cache = c - 0xa1;
              } else {
                     w = (c1 << 8) | c;
                     w &= MBFL_WCSGROUP_MASK;
                     w |= MBFL_WCSGROUP_THROUGH;
                     CK((*filter->output_function)(w, filter->data));
              }
              break;

       case 3:       /* got 0x8e,  third char */
              filter->status = 0;
              c1 = filter->cache;
              if ((c >= 0 && c < 0x21) || c == 0x7f) {         /* CTLs */
                     CK((*filter->output_function)(c, filter->data));
                     filter->status = 0;
              } else if (c > 0xa0 && c < 0xff) {
                     filter->status = 4;
                     filter->cache = (c1 << 8) + c - 0xa1;
              } else {
                     w = (c1 << 8) | c;
                     w &= MBFL_WCSGROUP_MASK;
                     w |= MBFL_WCSGROUP_THROUGH;
                     CK((*filter->output_function)(w, filter->data));
              }
              break;

       case 4:       /* mbcs fourth char */
              filter->status = 0;
              c1 = filter->cache;
              if (c1 >= 0x100 && c1 <= 0xdff && c > 0xa0 && c < 0xff) {
                     plane = (c1 & 0xf00) >> 8; 
                     s = (c1 & 0xff)*94 + c - 0xa1;
                     w = 0;
                     if (s >= 0) {
                            if (plane == 1 && s < cns11643_2_ucs_table_size) {
                                   w = cns11643_2_ucs_table[s];
                            }
                            if (plane == 13 && s < cns11643_14_ucs_table_size) {
                                   w = cns11643_14_ucs_table[s];
                            }
                     }
                     if (w <= 0) {
                            w = ((c1 & 0x7f) << 8) | (c & 0x7f);
                            w &= MBFL_WCSPLANE_MASK;
                            w |= MBFL_WCSPLANE_CNS11643;
                     }
                     CK((*filter->output_function)(w, filter->data));
              } else if ((c >= 0 && c < 0x21) || c == 0x7f) {         /* CTLs */
                     CK((*filter->output_function)(c, filter->data));
              } else {
                     w = (c1 << 8) | c | 0x8e0000;
                     w &= MBFL_WCSGROUP_MASK;
                     w |= MBFL_WCSGROUP_THROUGH;
                     CK((*filter->output_function)(w, filter->data));
              }
              break;

       default:
              filter->status = 0;
              break;
       }

       return c;
}
int mbfl_filt_conv_wchar_euctw ( int  c,
mbfl_convert_filter *  filter 
)

Definition at line 226 of file mbfilter_euc_tw.c.

{
       int c1, s, plane;

       s = 0;
       if (c >= ucs_a1_cns11643_table_min && c < ucs_a1_cns11643_table_max) {
              s = ucs_a1_cns11643_table[c - ucs_a1_cns11643_table_min];
       } else if (c >= ucs_a2_cns11643_table_min && c < ucs_a2_cns11643_table_max) {
              s = ucs_a2_cns11643_table[c - ucs_a2_cns11643_table_min];
       } else if (c >= ucs_a3_cns11643_table_min && c < ucs_a3_cns11643_table_max) {
              s = ucs_a3_cns11643_table[c - ucs_a3_cns11643_table_min];
       } else if (c >= ucs_i_cns11643_table_min && c < ucs_i_cns11643_table_max) {
              s = ucs_i_cns11643_table[c - ucs_i_cns11643_table_min];
       } else if (c >= ucs_r_cns11643_table_min && c < ucs_r_cns11643_table_max) {
              s = ucs_r_cns11643_table[c - ucs_r_cns11643_table_min];
       }
       if (s <= 0) {
              c1 = c & ~MBFL_WCSPLANE_MASK;
              if (c1 == MBFL_WCSPLANE_CNS11643) {
                     s = c & MBFL_WCSPLANE_MASK;
              }
              if (c == 0) {
                     s = 0;
              } else if (s <= 0) {
                     s = -1;
              }
       }
       if (s >= 0) {
              plane = (s & 0x1f0000) >> 16;
              if (plane <= 1){
                     if (s < 0x80) {      /* latin */
                            CK((*filter->output_function)(s, filter->data));
                     } else {
                            s = (s & 0xffff) | 0x8080;
                            CK((*filter->output_function)((s >> 8) & 0xff, filter->data));
                            CK((*filter->output_function)(s & 0xff, filter->data));
                     } 
              } else {
                     s = (0x8ea00000 + (plane << 16)) | ((s & 0xffff) | 0x8080);
                     CK((*filter->output_function)(0x8e , filter->data));
                     CK((*filter->output_function)((s >> 16) & 0xff, filter->data));
                     CK((*filter->output_function)((s >> 8) & 0xff, filter->data));
                     CK((*filter->output_function)(s & 0xff, filter->data));
              }
       } else {
              if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
                     CK(mbfl_filt_conv_illegal_output(c, filter));
              }
       }
       return c;
}

Here is the call graph for this function:

static int mbfl_filt_ident_euctw ( int  c,
mbfl_identify_filter *  filter 
) [static]

Definition at line 278 of file mbfilter_euc_tw.c.

{
       switch (filter->status) {
       case  0:      /* latin */
              if (c >= 0 && c < 0x80) {   /* ok */
                     ;
              } else if (c > 0xa0 && c < 0xff) { /* DBCS lead byte */
                     filter->status = 1;
              } else if (c == 0x8e) {     /* DBCS lead byte */
                     filter->status = 2;
              } else {                                                /* bad */
                     filter->flag = 1;
              }
              break;

       case  1:      /* got lead byte */
              if (c < 0xa1 || c > 0xfe) {        /* bad */
                     filter->flag = 1;
              }
              filter->status = 0;
              break;

       case  2:      /* got lead byte */
              if (c >= 0xa1 && c < 0xaf) {       /* ok */
                     filter->status = 3;
              } else {
                     filter->flag = 1; /* bad */
              }
              break;

       case  3:      /* got lead byte */
              if (c < 0xa1 || c > 0xfe) {        /* bad */
                     filter->flag = 1;
              }
              filter->status = 4;
              break;

       case  4:      /* got lead byte */
              if (c < 0xa1 || c > 0xfe) {        /* bad */
                     filter->flag = 1;
              }
              filter->status = 0;
              break;

       default:
              filter->status = 0;
              break;
       }

       return c;
}

Variable Documentation

Initial value:

Definition at line 63 of file mbfilter_euc_tw.c.

const char* mbfl_encoding_euc_tw_aliases[] = {"EUC_TW", "eucTW", "x-euc-tw", NULL} [static]

Definition at line 61 of file mbfilter_euc_tw.c.

const unsigned char mblen_table_euctw[] [static]
Initial value:
 { 
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1,
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
  1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1
}

Definition at line 41 of file mbfilter_euc_tw.c.