string.c File Reference

internals of utf-8 and byte strings More...

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "potion.h"
#include "internal.h"
#include "khash.h"
#include "table.h"

Include dependency graph for string.c:

Go to the source code of this file.

Macros
#define	BYTES_FACTOR   1 / 8 * 9
#define	BYTES_CHUNK   32
#define	BYTES_ALIGN(len)   PN_ALIGN(len + sizeof(struct PNBytes), BYTES_CHUNK) - sizeof(struct PNBytes)

Functions
void	potion_add_str (Potion *P, PN s)
PN	potion_lookup_str (Potion *P, const char *str)
PN	potion_str (Potion *P, const char *str)
PN	potion_str2 (Potion *P, char *str, size_t len)
PN	potion_strcat (Potion *P, char *str, char *str2)
PN	potion_str_format (Potion *P, const char *format,...)
static size_t	potion_utf8char_offset (const char *s, size_t index)
	returns byte position of the index-th utf8 char More...
static size_t	potion_utf8char_nextchar (const char *s, size_t offset)
	returns byte position of next utf8 char after s[offset] More...
static unsigned long	potion_utf8char_decode (const char *s)
	decode the utf8 codepoint at s, i.e. ord More...
static PN	potion_str_slice_index (PN index, size_t len, int nilvalue)
	helper function for potion_str_slice to fix index. More...
PN	potion_byte_str (Potion *P, const char *str)
PN	potion_byte_str2 (Potion *P, const char *str, size_t len)
PN	potion_bytes (Potion *P, size_t len)
PN_SIZE	pn_printf (Potion *P, PN bytes, const char *format,...)
void	potion_bytes_obj_string (Potion *P, PN bytes, PN obj)
void	potion_str_hash_init (Potion *P)
void	potion_str_init (Potion *P)

Variables
static const uint8_t	utf8d []

Detailed Description

internals of utf-8 and byte strings

See also

PNString class members

PNBytes class members

Definition in file string.c.

Macro Definition Documentation

#define BYTES_FACTOR   1 / 8 * 9

Definition at line 16 of file string.c.

#define BYTES_CHUNK   32

Definition at line 17 of file string.c.

#define BYTES_ALIGN

(

len

)

PN_ALIGN(len + sizeof(struct PNBytes), BYTES_CHUNK) - sizeof(struct PNBytes)

Definition at line 18 of file string.c.

Function Documentation

void potion_add_str	(	Potion *	P,
		PN	s
	)

Definition at line 20 of file string.c.

PN potion_lookup_str	(	Potion *	P,
		const char *	str
	)

Definition at line 26 of file string.c.

PN potion_str	(	Potion *	P,
		const char *	str
	)

Definition at line 33 of file string.c.

PN potion_str2	(	Potion *	P,
		char *	str,
		size_t	len
	)

Definition at line 47 of file string.c.

PN potion_strcat	(	Potion *	P,
		char *	str,
		char *	str2
	)

Definition at line 64 of file string.c.

PN potion_str_format	(	Potion *	P,
		const char *	format,
			...
	)

Definition at line 81 of file string.c.

static size_t potion_utf8char_offset ( const char *  s, size_t  index  )

static

returns byte position of the index-th utf8 char

Definition at line 155 of file string.c.

static size_t potion_utf8char_nextchar ( const char *  s, size_t  offset  )

static

returns byte position of next utf8 char after s[offset]

Definition at line 165 of file string.c.

static unsigned long potion_utf8char_decode ( const char *  s )

static

decode the utf8 codepoint at s, i.e. ord

Definition at line 206 of file string.c.

static PN potion_str_slice_index ( PN  index, size_t  len, int  nilvalue  )

inlinestatic

helper function for potion_str_slice to fix index.

Definition at line 220 of file string.c.

PN potion_byte_str	(	Potion *	P,
		const char *	str
	)

Definition at line 331 of file string.c.

PN potion_byte_str2	(	Potion *	P,
		const char *	str,
		size_t	len
	)

Definition at line 335 of file string.c.

PN potion_bytes	(	Potion *	P,
		size_t	len
	)

Definition at line 342 of file string.c.

PN_SIZE pn_printf	(	Potion *	P,
		PN	bytes,
		const char *	format,
			...
	)

Definition at line 361 of file string.c.

void potion_bytes_obj_string	(	Potion *	P,
		PN	bytes,
		PN	obj
	)

Definition at line 384 of file string.c.

void potion_str_hash_init

(

Potion *

P

)

Definition at line 487 of file string.c.

void potion_str_init

(

Potion *

P

)

Definition at line 491 of file string.c.

Variable Documentation

const uint8_t utf8d[]

static

Initial value:

= {
  070,070,070,070,070,070,070,070,070,070,070,070,070,070,070,070,
  050,050,050,050,050,050,050,050,050,050,050,050,050,050,050,050,
  030,030,030,030,030,030,030,030,030,030,030,030,030,030,030,030,
  030,030,030,030,030,030,030,030,030,030,030,030,030,030,030,030,
  204,204,188,188,188,188,188,188,188,188,188,188,188,188,188,188,
  188,188,188,188,188,188,188,188,188,188,188,188,188,188,188,188,
  174,158,158,158,158,158,158,158,158,158,158,158,158,142,126,126,
  111, 95, 95, 95, 79,207,207,207,207,207,207,207,207,207,207,207,

  0,1,1,1,8,7,6,4,5,4,3,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
  1,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
  1,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,1,1,1,1,1,1,1,1,1,1,1,1,
  1,4,4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,4,4,4,1,1,1,1,1,1,1,1,1,1,1,1,
  1,1,1,4,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,8,7,6,4,5,4,3,2,1,1,1,1,
}

Definition at line 188 of file string.c.