ut_utils.c File Reference

Various internal functions. More...

#include <sys/stat.h>
#include <unistd.h>
#include <float.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <endian.h>
#include <byteswap.h>
#include "utrac.h"
#include "ut_text.h"
#include "ut_charset.h"
#include "debug.h"

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Functions
UtCode	ut_load_charset_file (const char *filename, char **buffer)
	Load a file in a buffer.
void	ut_print_binary (ulong src)
	Print a number in binary form on stdout (debug).
UtCode	ut_debug_text (UtText *text)
	Print content of a UtText structure (debug).
UtCode	ut_debug_text_rating (UtText *text)
	Print content of a UtText::evaluation array (debug).
UtCharsetIndex	ut_find_charset (char *charset_name)
	get charset index from a string
UtEolType	ut_find_eol (char *eol_name)
int	ut_find_lang_sys (char *language_name, UtLangSys *lang_sys)
bool	ut_str_fuzzy_cmp (const char *str1, const char *str2, char stop_char)
	Approximative comparaison between two strings.
double	ut_get_charset_coef (UtCharsetIndex i)
bool	ut_update_progress (UtText *text, ulong processed, bool start_stop)
	Function which call the user-defined function UtText::progress_function.
ulong	ut_crc32 (ushort data, ulong crc_in)
	Function which call the user-defined function UtText::progress_function.
Variables
ulong	ut_crc32_table [256]
	table CRC32 ?
const ulong	UT_CRC32_POLY = 0x04c11db7

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Detailed Description

Various internal functions.

Author:

Antoine Calando (antoine@alliancemca.net)

Definition in file ut_utils.c.

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Function Documentation

bool is_letter (  char  c  )  [inline, static]

brief Utility functions for ut_str_fuzzy_cmp() These functions test if a character is uppercase, lowercase, letter or number. Definition at line 164 of file ut_utils.c. References is_maj(). Referenced by ut_str_fuzzy_cmp().

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bool is_maj (  char  c  )  [inline, static]

brief Utility functions for ut_str_fuzzy_cmp() These functions test if a character is uppercase, lowercase, letter or number. Definition at line 162 of file ut_utils.c. Referenced by is_letter(), and ut_str_fuzzy_cmp().

bool is_min (  char  c  )  [inline, static]

brief Utility functions for ut_str_fuzzy_cmp() These functions test if a character is uppercase, lowercase, letter or number. Definition at line 163 of file ut_utils.c.

bool is_num (  char  c  )  [inline, static]

brief Utility functions for ut_str_fuzzy_cmp() These functions test if a character is uppercase, lowercase, letter or number. Definition at line 165 of file ut_utils.c. Referenced by ut_str_fuzzy_cmp().

ulong ut_crc32 (  ushort  data, ulong  crc_in )

Function which call the user-defined function UtText::progress_function. Parameters: data  The data to "checksum" crc_in  The previous returned checksum, 0 if none Returns: The resulting checksum. Note: Compute the CRC of a data. Code was modified and the following may not be exact : The following C code (by Rob Warnock <rpw3@sgi.com>) does CRC-32 in BigEndian/BigEndian byte/bit order. That is, the data is sent most significant byte first, and each of the bits within a byte is sent most significant bit first, as in FDDI. You will need to twiddle with it to do Ethernet CRC, i.e., BigEndian/LittleEndian byte/bit order. The CRCs this code generates agree with the vendor-supplied Verilog models of several of the popular FDDI "MAC" chips. Definition at line 366 of file ut_utils.c. References UT_CRC32_POLY, and ut_crc32_table. Referenced by ut_xascii_pass().

UtCode ut_load_charset_file (  const char *  filename, char **  buffer )

Load a file in a buffer. Parameters: filename  Path to the file. buffer  Pointer used to return buffer address. Buffer must be free after used by user. Returns: UT_OK on succes, error code otherwise. Bug: EC il n'y a qu'un appel à read or lorsque read!=size ce n'est pas une erreur si errno vaut EAGAIN. AC read() ne peut pas renvoyer EAGAIN si le fichier n'a pas été open() en mode EAGAIN (norme POSIX) Definition at line 64 of file ut_utils.c. Referenced by ut_load_charsets().

void ut_print_binary (  ulong  src  )

Print a number in binary form on stdout (debug). Parameters: src  Number to print. Bug: pas de gestion big/little endian Definition at line 102 of file ut_utils.c. Referenced by ut_debug_text(), and ut_utf8c_to_unicode().

bool ut_str_fuzzy_cmp (  const char *  str1, const char *  str2, char  stop_char )

Approximative comparaison between two strings. The comparaison focuses only on substrings composed of number or letter (case is not significant). For instance "iso8859 1"=="ISO-8859-1", but "Mac Roman"!="MacRoman". Definition at line 232 of file ut_utils.c. References is_letter(), is_maj(), and is_num(). Referenced by ut_find_charset(), and ut_init_noalloc().

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bool ut_update_progress (  UtText *  text, ulong  processed, bool  start_stop )

Function which call the user-defined function UtText::progress_function. Parameters: text  Related UtText structure. processed  Size in byte processed, compared to UtText::size. start_stop  If true, the user-defined function will be call for initialisation or cleanup. Returns: This function returns the same return code than the user-defined function, i.e. 0 if the processing must be interrupted, 1 otherwise. Definition at line 316 of file ut_utils.c. References UtText::progress_done, UtSession::progress_function, UtText::progress_todo, UtText::size, and ut_update_progress(). Referenced by ut_conversion_pass(), ut_convert(), ut_distrib_utf_pass(), ut_eol_pass(), ut_load(), ut_recognize(), ut_update_progress(), and ut_xascii_pass().

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Variable Documentation

const ulong UT_CRC32_POLY = 0x04c11db7

MAGIC NUMBER ? Definition at line 345 of file ut_utils.c. Referenced by ut_crc32().

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