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/*************************************************************************\
*
* Package: MyLib
* File: mystr.c
* Environment: ANSI C
*
* Copyright (c) 2002 Pierre L'Ecuyer, DIRO, Université de Montréal.
* e-mail: lecuyer@iro.umontreal.ca
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted without a fee for private, research,
* academic, or other non-commercial purposes.
* Any use of this software in a commercial environment requires a
* written licence from the copyright owner.
*
* Any changes made to this package must be clearly identified as such.
*
* In scientific publications which used this software, a reference to it
* would be appreciated.
*
* Redistributions of source code must retain this copyright notice
* and the following disclaimer.
*
* THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
\*************************************************************************/
#include "util.h"
#include "mystr.h"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
void mystr_Delete (char S[], unsigned int index, unsigned int len)
{
int i;
unsigned int length = strlen (S);
if (index + len > length)
S[index] = '\0';
else
for (i = index; (unsigned int) i <= length - len; ++i)
S[i] = S[i + len];
}
void mystr_Insert (char Res[], char Source[], unsigned int Pos)
{
int i;
unsigned int ResLength = strlen (Res);
unsigned int SourceLength = strlen (Source);
if (Pos > ResLength)
util_Error ("mystr_Insert : Index out of array bound.");
for (i = ResLength; (unsigned) i >= Pos; --i) {
Res[i + SourceLength] = Res[i]; /* end of Res */
}
for (i = Pos; (unsigned) i < Pos + SourceLength; ++i)
Res[i] = Source[i - Pos]; /* adding Source to Res */
}
void mystr_ItemS (char R[], char S[], const char T[], unsigned int N)
{
unsigned int i;
char *temp;
temp = strtok (S, T); /* first time */
for (i = 1; i <= N; ++i) { /* 2nd to Nth time */
if (temp == NULL)
break;
temp = strtok (NULL, T);
}
if (temp == NULL) {
strncpy (R, "\0", (size_t) 1);
return;
}
strcpy (R, temp); /* assignation */
}
static int mystr_Rmatch (char s[], unsigned int i, char p[], unsigned int j)
{
int matched;
unsigned int k;
unsigned int s_len = strlen (s);
unsigned int p_len = strlen (p);
if (p[0] == 0)
return 1;
for (;;) {
if ((i > s_len - 1 || s[i] == 0) && (j > p_len - 1 || p[j] == 0))
return 1;
if (j > p_len - 1 || p[j] == 0)
return 0;
if (p[j] == '*') {
k = i;
if (j == p_len - 1 || p[j + 1] == 0)
return 1;
else {
for (;;) {
matched = mystr_Rmatch (s, k, p, j + 1);
if ((matched || k > s_len - 1) || s[k] == 0)
return matched;
++k;
}
}
}
if ((p[j] == '?' && s[i]) || (toupper (p[j]) == toupper (s[i]))) {
++i;
++j;
} else
return 0;
}
return 0;
}
int mystr_Match (char Source[], char Pattern[])
/*
returns TRUE if the string in Source matches the string in Pattern
The pattern may contain any number of the wild characters '*' and '?'
'?' matches any single character
'*' matches any sequence of charcters (including a zero length sequence)
EG '*m?t*i*' will match 'Automatic'
*/
{
return mystr_Rmatch (Source, 0, Pattern, 0);
}
void mystr_Slice (char R[], char S[], unsigned int P, unsigned int L)
{
unsigned int i;
if (P + L > strlen (S))
util_Error ("*** ERROR : mystr_Slice Pattern longer then Source");
for (i = 0; i < L; i++) {
R[i] = S[i + P];
}
if (L <= strlen (R) - 1)
R[L] = 0;
}
void mystr_Subst (char source[], char OldPattern[], char NewPattern[])
{
unsigned int len;
unsigned int index;
char *PatternFound;
PatternFound = strstr (source, OldPattern);
if (PatternFound != NULL) {
len = strlen (OldPattern);
index = PatternFound - source;
mystr_Delete (source, index, len);
mystr_Insert (source, NewPattern, index);
}
}
void mystr_Position (char Substring[], char Source[], unsigned int at,
unsigned int *pos, int *found)
{
char *result = strstr (Source + at, Substring);
if (at > strlen (Source))
util_Error ("mystr_Position : Index out of array bound.");
if (result != NULL) {
*pos = result - Source;
*found = 1;
} else
*found = 0;
}
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