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/*
* Copyright (c) 2009 Public Software Group e. V., Berlin, Germany
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*
* File name: ruby/utf8proc_native.c
*
* Description:
* Native part of the ruby wrapper for libutf8proc.
*/
#include "../utf8proc.c"
#include "ruby.h"
#ifndef RSTRING_PTR
#define RSTRING_PTR(s) (RSTRING(s)->ptr)
#endif
#ifndef RSTRING_LEN
#define RSTRING_LEN(s) (RSTRING(s)->len)
#endif
typedef struct utf8proc_ruby_mapenv_struct {
int32_t *buffer;
} utf8proc_ruby_mapenv_t;
void utf8proc_ruby_mapenv_free(utf8proc_ruby_mapenv_t *env) {
free(env->buffer);
free(env);
}
VALUE utf8proc_ruby_module;
VALUE utf8proc_ruby_options;
VALUE utf8proc_ruby_eUnicodeError;
VALUE utf8proc_ruby_eInvalidUtf8Error;
VALUE utf8proc_ruby_eCodeNotAssignedError;
VALUE utf8proc_ruby_map_error(ssize_t result) {
VALUE excpt_class;
switch (result) {
case UTF8PROC_ERROR_NOMEM:
excpt_class = rb_eNoMemError; break;
case UTF8PROC_ERROR_OVERFLOW:
case UTF8PROC_ERROR_INVALIDOPTS:
excpt_class = rb_eArgError; break;
case UTF8PROC_ERROR_INVALIDUTF8:
excpt_class = utf8proc_ruby_eInvalidUtf8Error; break;
case UTF8PROC_ERROR_NOTASSIGNED:
excpt_class = utf8proc_ruby_eCodeNotAssignedError; break;
default:
excpt_class = rb_eRuntimeError;
}
rb_raise(excpt_class, "%s", utf8proc_errmsg(result));
return Qnil;
}
VALUE utf8proc_ruby_map(VALUE self, VALUE str_param, VALUE options_param) {
VALUE str;
int options;
VALUE env_obj;
utf8proc_ruby_mapenv_t *env;
ssize_t result;
VALUE retval;
str = StringValue(str_param);
options = NUM2INT(options_param) & ~UTF8PROC_NULLTERM;
env_obj = Data_Make_Struct(rb_cObject, utf8proc_ruby_mapenv_t, NULL,
utf8proc_ruby_mapenv_free, env);
result = utf8proc_decompose(RSTRING_PTR(str), RSTRING_LEN(str),
NULL, 0, options);
if (result < 0) {
utf8proc_ruby_map_error(result);
return Qnil; /* needed to prevent problems with optimization */
}
env->buffer = ALLOC_N(int32_t, result+1);
result = utf8proc_decompose(RSTRING_PTR(str), RSTRING_LEN(str),
env->buffer, result, options);
if (result < 0) {
free(env->buffer);
env->buffer = 0;
utf8proc_ruby_map_error(result);
return Qnil; /* needed to prevent problems with optimization */
}
result = utf8proc_reencode(env->buffer, result, options);
if (result < 0) {
free(env->buffer);
env->buffer = 0;
utf8proc_ruby_map_error(result);
return Qnil; /* needed to prevent problems with optimization */
}
retval = rb_str_new((char *)env->buffer, result);
free(env->buffer);
env->buffer = 0;
return retval;
}
static VALUE utf8proc_ruby_char(VALUE self, VALUE code_param) {
char buffer[4];
ssize_t result;
int uc;
uc = NUM2INT(code_param);
if (!utf8proc_codepoint_valid(uc))
rb_raise(rb_eArgError, "Invalid Unicode code point");
result = utf8proc_encode_char(uc, buffer);
return rb_str_new(buffer, result);
}
#define register_utf8proc_option(sym, field) \
rb_hash_aset(utf8proc_ruby_options, ID2SYM(rb_intern(sym)), INT2FIX(field))
void Init_utf8proc_native() {
utf8proc_ruby_module = rb_define_module("Utf8Proc");
rb_define_module_function(utf8proc_ruby_module, "utf8map",
utf8proc_ruby_map, 2);
rb_define_module_function(utf8proc_ruby_module, "utf8char",
utf8proc_ruby_char, 1);
utf8proc_ruby_eUnicodeError = rb_define_class_under(utf8proc_ruby_module,
"UnicodeError", rb_eStandardError);
utf8proc_ruby_eInvalidUtf8Error = rb_define_class_under(
utf8proc_ruby_module, "InvalidUtf8Error", utf8proc_ruby_eUnicodeError);
utf8proc_ruby_eCodeNotAssignedError = rb_define_class_under(
utf8proc_ruby_module, "CodeNotAssignedError",
utf8proc_ruby_eUnicodeError);
utf8proc_ruby_options = rb_hash_new();
register_utf8proc_option("stable", UTF8PROC_STABLE);
register_utf8proc_option("compat", UTF8PROC_COMPAT);
register_utf8proc_option("compose", UTF8PROC_COMPOSE);
register_utf8proc_option("decompose", UTF8PROC_DECOMPOSE);
register_utf8proc_option("ignore", UTF8PROC_IGNORE);
register_utf8proc_option("rejectna", UTF8PROC_REJECTNA);
register_utf8proc_option("nlf2ls", UTF8PROC_NLF2LS);
register_utf8proc_option("nlf2ps", UTF8PROC_NLF2PS);
register_utf8proc_option("nlf2lf", UTF8PROC_NLF2LF);
register_utf8proc_option("stripcc", UTF8PROC_STRIPCC);
register_utf8proc_option("casefold", UTF8PROC_CASEFOLD);
register_utf8proc_option("charbound", UTF8PROC_CHARBOUND);
register_utf8proc_option("lump", UTF8PROC_LUMP);
register_utf8proc_option("stripmark", UTF8PROC_STRIPMARK);
OBJ_FREEZE(utf8proc_ruby_options);
rb_define_const(utf8proc_ruby_module, "Options", utf8proc_ruby_options);
}
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