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yap-6.3/packages/ProbLog/simplecudd/general.c

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2009-03-09 00:42:12 +00:00
/******************************************************************************\
* *
* SimpleCUDD library (www.cs.kuleuven.be/~theo/tools/simplecudd.html) *
* SimpleCUDD was developed at Katholieke Universiteit Leuven(www.kuleuven.be) *
* *
* Copyright T. Mantadelis and Katholieke Universiteit Leuven 2008 *
* *
* Author: Theofrastos Mantadelis *
* File: general.c *
* *
********************************************************************************
* *
* The "Artistic License" *
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\******************************************************************************/
#include "general.h"
/* Number Handling */
int IsRealNumber(char *c) {
int i, l;
l = strlen(c);
if (l <= 0) return 0;
if (l == 1) return IsNumberDigit(c[0]);
for(i = 1; i < strlen(c); i++) {
if (c[i] == '.') return IsPosNumber(&c[i + 1]);
if (!IsNumberDigit(c[i])) return 0;
}
return (IsNumberDigit(c[0]) || IsSignDigit(c[0]));
}
int IsPosNumber(const char *c) {
int i, l;
l = strlen(c);
if (l <= 0) return 0;
for(i = 0; i < strlen(c); i++) {
if (!IsNumberDigit(c[i])) return 0;
}
return 1;
}
int IsNumber(const char *c) {
int i, l;
l = strlen(c);
if (l <= 0) return 0;
if (l == 1) return IsNumberDigit(c[0]);
for(i = 1; i < strlen(c); i++) {
if (!IsNumberDigit(c[i])) return 0;
}
return (IsNumberDigit(c[0]) || IsSignDigit(c[0]));
}
/* File Handling */
char * freadstr(FILE *fd, const char *separators) {
char *str;
int buf, icur = 0, max = 10;
str = (char *) malloc(sizeof(char) * max);
str[0] = '\0';
do {
if ((buf = fgetc(fd)) != EOF) {
if (icur == (max - 1)) {
max = max * 2;
str = (char *) realloc(str, sizeof(char) * max);
}
if (!CharIn((char) buf, separators)) {
str[icur] = (char) buf;
icur++;
str[icur] = '\0';
}
}
} while(!CharIn(buf, separators) && !feof(fd));
return str;
}
int CharIn(const char c, const char *in) {
int i;
for (i = 0; i < strlen(in); i++)
if (c == in[i]) return 1;
return 0;
}
/* string handling */
int patternmatch(char *pattern, char *thestr) {
int i, j = -1, pl = strlen(pattern), sl = strlen(thestr);
for(i = 0; i < pl; i++) {
if (pattern[i] == '*') {
do {
i++;
if (i == pl) return 1;
} while(pattern[i] == '*');
do {
j++;
if (j >= sl) return 0;
if ((thestr[j] == pattern[i]) && patternmatch(pattern + i, thestr + j)) return 1;
} while(1);
} else {
j++;
if (j >= sl) return 0;
if (pattern[i] != thestr[j]) return 0;
}
}
return (pl == sl);
}