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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "internal.h"
#include "rcciconv.h"
#include "fs.h"
#include "lng.h"
#include "rccstring.h"
#include "rccconfig.h"
#include "rccdb4.h"
static rcc_charset_id rccIConvAuto(rcc_context ctx, rcc_class_id class_id, const char *buf, int len) {
rcc_class_type class_type;
rcc_engine_ptr engine;
if (!buf) return (rcc_charset_id)-1;
class_type = rccGetClassType(ctx, class_id);
if ((class_type == RCC_CLASS_STANDARD)||((class_type == RCC_CLASS_FS)&&(rccGetOption(ctx, RCC_OPTION_AUTODETECT_FS_TITLES)))) {
engine = rccGetCurrentEnginePointer(ctx);
if ((!engine)||(!engine->func)) return (rcc_charset_id)-1;
return engine->func(&ctx->engine_ctx, buf, len);
}
return (rcc_charset_id)-1;
}
rcc_string rccFrom(rcc_context ctx, rcc_class_id class_id, const char *buf, size_t len, size_t *rlen) {
int err;
size_t ret;
rcc_language_id language_id;
rcc_charset_id charset_id;
rcc_iconv icnv = NULL;
rcc_string result;
rcc_option_value usedb4;
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return NULL;
}
if ((class_id<0)||(class_id>=ctx->n_classes)||(!buf)) return NULL;
// Checking if rcc_string passed
ret = rccStringSizedCheck(buf, len);
if (ret) return NULL;
usedb4 = rccGetOption(ctx, RCC_OPTION_LEARNING_MODE);
if (usedb4&RCC_OPTION_LEARNING_FLAG_USE) {
result = rccDb4GetKey(ctx->db4ctx, buf, len);
if (result) {
if (rccStringFixID(result, ctx)) free(result);
else return result;
}
}
err = rccConfigure(ctx);
if (err) return NULL;
language_id = rccGetCurrentLanguage(ctx);
charset_id = rccIConvAuto(ctx, class_id, buf, len);
if (charset_id != (rcc_charset_id)-1) icnv = ctx->iconv_auto[charset_id];
else icnv = ctx->iconv_from[class_id];
if (icnv) {
ret = rccIConv(ctx, icnv, buf, len);
if (ret == (size_t)-1) return NULL;
result = rccCreateString(language_id, ctx->tmpbuffer, ret, rlen);
} else {
result = rccCreateString(language_id, buf, len, rlen);
}
if ((result)&&(usedb4&RCC_OPTION_LEARNING_FLAG_LEARN)) {
if (!rccStringSetLang(result, ctx->languages[language_id]->sn)) {
rccDb4SetKey(ctx->db4ctx, buf, len, result);
}
}
return result;
}
char *rccTo(rcc_context ctx, rcc_class_id class_id, const rcc_string buf, size_t len, size_t *rlen) {
int err;
size_t newlen;
char *result;
char *prefix, *name;
const char *utfstring;
rcc_language_config config;
rcc_language_id language_id;
rcc_charset_id charset_id;
rcc_class_type class_type;
rcc_iconv icnv;
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return NULL;
}
if ((class_id<0)||(class_id>=ctx->n_classes)||(!buf)) return NULL;
newlen = rccStringSizedCheck((const char*)buf, len);
if (!newlen) return NULL;
language_id = rccStringGetLanguage(buf);
utfstring = rccStringGetString(buf);
if ((!language_id)||(!utfstring)) return NULL;
config = rccGetConfig(ctx, language_id);
if (!config) return NULL;
err = rccConfigConfigure(config);
if (err) return NULL;
class_type = rccGetClassType(ctx, class_id);
if ((class_type == RCC_CLASS_FS)&&(rccGetOption(ctx, RCC_OPTION_AUTODETECT_FS_NAMES))) {
name = (char*)utfstring;
prefix = NULL;
err = rccFS0(config, NULL, buf, &prefix, &name);
if (err>=0) {
result = rccFS3(config, class_id, prefix, name);
if (!err) {
if (prefix) free(prefix);
free(name);
}
if ((rlen)&&(result)) *rlen = strlen(result);
return result;
}
}
icnv = config->iconv_to[class_id];
if (icnv) {
newlen = rccIConv(ctx, icnv, rccStringGetString(buf), len?newlen:0);
if (newlen == (size_t)-1) return NULL;
result = rccCreateResult(ctx, newlen, rlen);
} else {
result = rccStringExtractString(buf);
if (rlen) *rlen = newlen;
}
return result;
}
char *rccRecode(rcc_context ctx, rcc_class_id from, rcc_class_id to, const char *buf, size_t len, size_t *rlen) {
size_t nlen;
rcc_string stmp;
char *result;
const char *from_charset, *to_charset;
rcc_charset_id from_charset_id, to_charset_id;
rcc_class_type class_type;
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return NULL;
}
if ((from<0)||(from>=ctx->n_classes)||(to<0)||(to>=ctx->n_classes)||(!buf)) return NULL;
class_type = rccGetClassType(ctx, to);
if ((class_type == RCC_CLASS_FS)&&(rccGetOption(ctx, RCC_OPTION_AUTODETECT_FS_NAMES))) goto recoding;
if (rccGetOption(ctx, RCC_OPTION_LEARNING_MODE)&RCC_OPTION_LEARNING_FLAG_LEARN) goto recoding;
from_charset_id = rccIConvAuto(ctx, from, buf, len);
if (from_charset_id != (rcc_charset_id)-1) {
from_charset = rccGetAutoCharsetName(ctx, from_charset_id);
to_charset = rccGetCurrentCharsetName(ctx, to);
if ((from_charset)&&(to_charset)&&(!strcasecmp(from_charset, to_charset))) return NULL;
} else {
from_charset_id = rccGetCurrentCharset(ctx, from);
to_charset_id = rccGetCurrentCharset(ctx, to);
if (from_charset_id == to_charset_id) return NULL;
}
recoding:
stmp = rccFrom(ctx, from, buf, len, &nlen);
if (stmp) {
result = rccTo(ctx, to, stmp, nlen, rlen);
free(stmp);
return result;
}
return NULL;
}
char *rccFS(rcc_context ctx, rcc_class_id from, rcc_class_id to, const char *fspath, const char *path, const char *filename) {
int err;
rcc_language_config config;
char *prefix = (char*)path, *name = (char*)filename; /*DS*/
rcc_string string;
char *stmp;
char *result = NULL;
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return NULL;
}
if ((from<0)||(from>=ctx->n_classes)||(to<0)||(to>=ctx->n_classes)||(!filename)) return NULL;
config = rccGetCurrentConfig(ctx);
if (!config) return NULL;
err = rccFS1(config, fspath, &prefix, &name);
if (err) {
if (err < 0) return NULL;
if (err&1) {
if (err&2) return NULL;
if (rccGetOption(ctx, RCC_OPTION_LEARNING_MODE)&RCC_OPTION_LEARNING_FLAG_LEARN) {
string = rccFrom(ctx, from, name, 0, NULL);
if (string) free(string);
}
return name;
}
}
string = rccFrom(ctx, from, name, 0, NULL);
if (string) {
config = rccGetConfig(ctx, rccStringGetLanguage(string));
if (config) result = rccFS3(config, to, prefix, rccStringGetString(string));
else result = NULL;
free(string);
} else result = NULL;
if (!(err&2)) {
if (prefix) free(prefix);
free(name);
}
return result;
}
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