ReactOS 0.4.15-dev-8219-ge8b88cf
icy2utf8.c File Reference
#include "config.h"
#include "intsym.h"
#include "compat.h"
Include dependency graph for icy2utf8.c:

Go to the source code of this file.

Macros

#define uint8_t   unsigned char
 
#define uint16_t   unsigned short
 

Functions

static int is_utf8 (const char *src)
 
charicy2utf8 (const char *src, int force)
 

Variables

static const uint8_t cp1252_utf8 []
 
static const uint16_t tblofs [257]
 

Macro Definition Documentation

◆ uint16_t

Definition at line 37 of file icy2utf8.c.

◆ uint8_t

Definition at line 36 of file icy2utf8.c.

Function Documentation

◆ icy2utf8()

char * icy2utf8 ( const char src,
int  force 
)

Definition at line 378 of file icy2utf8.c.

379{
380 const uint8_t *s = (const uint8_t *)src;
381 size_t srclen, dstlen, i, k;
382 uint8_t ch, *d;
383 char *dst;
384
385 /* Some funny streams from Apple/iTunes give ICY info in UTF-8 already.
386 So, be prepared and don't try to re-encode such. Unless forced. */
387 if(!force && is_utf8(src)) return (compat_strdup(src));
388
389 srclen = strlen(src) + 1;
390 /* allocate conservatively */
391 if ((d = malloc(srclen * 3)) == NULL)
392 return (NULL);
393
394 i = 0;
395 dstlen = 0;
396 while (i < srclen) {
397 ch = s[i++];
398 k = tblofs[ch];
399 while (k < tblofs[ch + 1])
400 d[dstlen++] = cp1252_utf8[k++];
401 }
402
403 /* dstlen includes trailing NUL since srclen also does */
404 if ((dst = realloc(d, dstlen)) == NULL) {
405 free(d);
406 return (NULL);
407 }
408 return (dst);
409}
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
#define realloc
Definition: debug_ros.c:6
#define free
Definition: debug_ros.c:5
#define malloc
Definition: debug_ros.c:4
#define NULL
Definition: types.h:112
GLdouble s
Definition: gl.h:2039
GLenum src
Definition: glext.h:6340
GLenum GLenum dst
Definition: glext.h:6340
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
static const uint8_t cp1252_utf8[]
Definition: icy2utf8.c:39
static int is_utf8(const char *src)
Definition: icy2utf8.c:336
static const uint16_t tblofs[257]
Definition: icy2utf8.c:298
#define compat_strdup
Definition: intsym.h:11
#define d
Definition: ke_i.h:81
static DWORD LPDWORD LPCSTR DWORD srclen
Definition: directory.c:52
static DWORD dstlen
Definition: directory.c:51
int k
Definition: mpi.c:3369
BYTE uint8_t
Definition: msvideo1.c:66

◆ is_utf8()

static int is_utf8 ( const char src)
static

Definition at line 336 of file icy2utf8.c.

337{
338 uint8_t ch;
339 size_t i;
340 const uint8_t* s = (const uint8_t*) src;
341
342 /* We make a loop over every character, until we find a null one.
343 Remember: The string is supposed to end with a NUL, so ahead checks are safe. */
344 while ((ch = *s++)) {
345 /* Ye olde 7bit ASCII chars 'rr fine for anything */
346 if(ch < 0x80) continue;
347
348 /* Now, we watch out for non-UTF conform sequences. */
349 else if ((ch < 0xC2) || (ch > 0xFD))
350 return 0;
351 /* check for some misformed sequences */
352 if (((ch == 0xC2) && (s[0] < 0xA0)) ||
353 ((ch == 0xEF) && (s[0] == 0xBF) && (s[1] > 0xBD)))
354 /* XXX add more for outside the BMP */
355 return 0;
356
357 /* Check the continuation bytes. */
358 if (ch < 0xE0) i = 1;
359 else if (ch < 0xF0) i = 2;
360 else if (ch < 0xF8) i = 3;
361 else if (ch < 0xFC) i = 4;
362 else
363 i = 5;
364
365 while (i--)
366 if ((*s++ & 0xC0) != 0x80)
367 return 0;
368 }
369
370 /* If no check failed, the string indeed looks like valid UTF-8. */
371 return 1;
372}

Referenced by icy2utf8().

Variable Documentation

◆ cp1252_utf8

const uint8_t cp1252_utf8[]
static

Definition at line 39 of file icy2utf8.c.

Referenced by icy2utf8().

◆ tblofs

const uint16_t tblofs[257]
static

Definition at line 298 of file icy2utf8.c.

Referenced by icy2utf8().