diff options
Diffstat (limited to 'iconv/gconv_open.c')
| -rw-r--r-- | iconv/gconv_open.c | 102 |
1 files changed, 92 insertions, 10 deletions
diff --git a/iconv/gconv_open.c b/iconv/gconv_open.c index da00b1abbd..984ca9dc5d 100644 --- a/iconv/gconv_open.c +++ b/iconv/gconv_open.c @@ -36,25 +36,65 @@ __gconv_open (const char *toset, const char *fromset, __gconv_t *handle, size_t cnt = 0; int res; int conv_flags = 0; - const char *runp; + const char *errhand; - /* Find out whether "IGNORE" is part of the options in the `toset' - name. If yes, remove the string and remember this in the flag. */ - runp = __strchrnul (__strchrnul (toset, '/'), '/'); - if (strcmp (runp, "IGNORE") == 0) + /* Find out whether any error handling method is specified. */ + errhand = strchr (toset, '/'); + if (errhand != NULL) + errhand = strchr (errhand + 1, '/'); + if (__builtin_expect (errhand != NULL, 1)) { - /* Found it. This means we should ignore conversion errors. */ - char *newtoset = (char *) alloca (runp - toset + 1); + if (errhand[1] == '\0') + errhand = NULL; + else + { + /* Make copy without the error handling description. */ + char *newtoset = (char *) alloca (errhand - toset + 1); - newtoset[runp - toset] = '\0'; - toset = memcpy (newtoset, toset, runp - toset); + newtoset[errhand - toset] = '\0'; + toset = memcpy (newtoset, toset, errhand - toset); - flags = __GCONV_IGNORE_ERRORS; + flags = __GCONV_IGNORE_ERRORS; + + if (strcasecmp (errhand, "IGNORE") == 0) + { + /* Found it. This means we should ignore conversion errors. */ + flags = __GCONV_IGNORE_ERRORS; + errhand = NULL; + } + } } res = __gconv_find_transform (toset, fromset, &steps, &nsteps, flags); if (res == __GCONV_OK) { + const char **csnames = NULL; + size_t ncsnames = 0; + __gconv_trans_fct trans_fct = NULL; + __gconv_trans_context_fct trans_context_fct = NULL; + __gconv_trans_init_fct trans_init_fct = NULL; + __gconv_trans_end_fct trans_end_fct = NULL; + + if (errhand != NULL) + { + /* Find the appropriate transliteration handling. */ + if (strcasecmp (errhand, "TRANSLIT") == 0) + { + /* It's the builtin transliteration handling. We only + suport for it working on the internal encoding. */ + static const char *internal_trans_names[1] = { "INTERNAL" }; + + csnames = internal_trans_names; + ncsnames = 1; + trans_fct = gconv_transliterate; + /* No context, init, or end function. */ + } + else if (strcasecmp (errhand, "WORK AROUND A GCC BUG") == 0) + { + trans_init_fct = (__gconv_trans_init_fct) 1; + } + } + /* Allocate room for handle. */ result = (__gconv_t) malloc (sizeof (struct __gconv_info) + (nsteps @@ -63,6 +103,8 @@ __gconv_open (const char *toset, const char *fromset, __gconv_t *handle, res = __GCONV_NOMEM; else { + size_t n; + /* Remember the list of steps. */ result->__steps = steps; result->__nsteps = nsteps; @@ -105,6 +147,26 @@ __gconv_open (const char *toset, const char *fromset, __gconv_t *handle, } result->__data[cnt].__outbufend = result->__data[cnt].__outbuf + size; + + /* Now see whether we can use the transliteration module + for this step. */ + for (n = 0; n < ncsnames; ++n) + if (strcasecmp (steps[cnt].__from_name, csnames[n]) == 0) + { + /* Match! Now try the initializer. */ + if (trans_init_fct == NULL + || (trans_init_fct (&result->__data[cnt].__trans.__data, + steps[cnt].__to_name) + == __GCONV_OK)) + { + result->__data[cnt].__trans.__trans_fct = trans_fct; + result->__data[cnt].__trans.__trans_context_fct = + trans_context_fct; + result->__data[cnt].__trans.__trans_end_fct = + trans_end_fct; + } + break; + } } /* Now handle the last entry. */ @@ -116,6 +178,26 @@ __gconv_open (const char *toset, const char *fromset, __gconv_t *handle, result->__data[cnt].__internal_use = 0; #endif result->__data[cnt].__statep = &result->__data[cnt].__state; + + /* Now see whether we can use the transliteration module + for this step. */ + for (n = 0; n < ncsnames; ++n) + if (strcasecmp (steps[cnt].__from_name, csnames[n]) == 0) + { + /* Match! Now try the initializer. */ + if (trans_init_fct == NULL + || trans_init_fct (&result->__data[cnt].__trans.__data, + steps[cnt].__to_name) + == __GCONV_OK) + { + result->__data[cnt].__trans.__trans_fct = trans_fct; + result->__data[cnt].__trans.__trans_context_fct = + trans_context_fct; + result->__data[cnt].__trans.__trans_end_fct = + trans_end_fct; + } + break; + } } if (res != __GCONV_OK) |