src/utils/StringUtils.cpp

/*
 * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
 *
 * The University of Notre Dame grants you ("Licensee") a
 * non-exclusive, royalty free, license to use, modify and
 * redistribute this software in source and binary code form, provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. All express or implied conditions, representations and
 * warranties, including any implied warranty of merchantability,
 * fitness for a particular purpose or non-infringement, are hereby
 * excluded.  The University of Notre Dame and its licensors shall not
 * be liable for any damages suffered by licensee as a result of
 * using, modifying or distributing the software or its
 * derivatives. In no event will the University of Notre Dame or its
 * licensors be liable for any lost revenue, profit or data, or for
 * direct, indirect, special, consequential, incidental or punitive
 * damages, however caused and regardless of the theory of liability,
 * arising out of the use of or inability to use software, even if the
 * University of Notre Dame has been advised of the possibility of
 * such damages.
 *
 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
 * research, please cite the appropriate papers when you publish your
 * work.  Good starting points are:
 *                                                                      
 * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).             
 * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).          
 * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
 * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 */

#include "config.h"
#include <algorithm> 
#include <stdlib.h>
#include <cctype>
#include <cstdlib>
#include <string>
#include "utils/StringUtils.hpp"

#ifdef _MSC_VER
#define strcasecmp _stricmp
#define strdup _strdup
#define strtoull _strtoui64
#endif


namespace OpenMD {
  std::string UpperCase(const std::string& S) {
    std::string uc = S;
    unsigned int n = uc.size();
    for (unsigned int j = 0; j < n; j++) {   
      char sj = uc[j];
      if (sj >= 'a' && sj <= 'z') uc[j] = (char)(sj - ('a' - 'A'));
    }
    return uc;
  }

  std::string LowerCase(const std::string& S) {
    std::string lc = S;
    unsigned int n = lc.size();
    for (unsigned int j = 0; j < n; j++) {
      char sj = lc[j];
      if (sj >= 'A' && sj <= 'Z') lc[j] = (char)(sj + ('a' - 'A'));
    }
    return lc;
  }

  char* trimSpaces(char *str) {
    size_t len;
    char *right, *left;

    if (strlen(str) == 0) return(str);
  
    /* Trim whitespace from left side */
    for (left = str; isspace(*left); left++);

    /* Trim whitespace from right side */
    if ((len = strlen(left)))
      {
        right = left + (len - 1);
      
        while (isspace(*right))
          {
            *right = '\0';
            right--;
          }
      }

    /* Only do the str copy if there were spaces to the left */
    if (left != str)
      strcpy(str, left);
  
    return (str);
  }

  int findBegin(std::istream &theStream, const char* startText ){
    const int MAXLEN = 1024;
    char readLine[MAXLEN];   
    int foundText = 0;
    int lineNum;
    char* the_token;

    // rewind the stream
    theStream.seekg (0, std::ios::beg);
    lineNum = 0;
  
    if (!theStream.eof()) {
      theStream.getline(readLine, MAXLEN);
      lineNum++;
    } else {
      printf( "Error fast forwarding stream: stream is empty.\n");
      return -1;
    }
  
    while ( !foundText ) {
    
      if (theStream.eof()) {
        printf("Error fast forwarding stream at line %d: "
               "stream ended unexpectedly.\n", lineNum);
        return -1;
      }
    
      the_token = strtok( readLine, " ,;\t" );
      if ( the_token != NULL)
        if (!strcasecmp("begin", the_token)) {
          the_token = strtok( NULL, " ,;\t" );
          if ( the_token != NULL){
            foundText = !strcasecmp( startText, the_token );
          }
        }
    
      if (!foundText) {
        if (!theStream.eof()) {
          theStream.getline(readLine, MAXLEN);
          lineNum++;
        } else {
          printf( "Error fast forwarding stream at line %d: "
                  "stream ended unexpectedly.\n", lineNum);
          return -1;
        }
      }
    }
    return lineNum;
  }

  int countTokens(char *line, char *delimiters) {
    /* PURPOSE: RETURN A COUNT OF THE NUMBER OF TOKENS ON THE LINE. */
  
    char *working_line;   /* WORKING COPY OF LINE. */
    int ntokens;          /* NUMBER OF TOKENS FOUND IN LINE. */
    char *strtok_ptr;     /* POINTER FOR STRTOK. */

    strtok_ptr= working_line= strdup(line);

    ntokens=0;
    while (strtok(strtok_ptr,delimiters)!=NULL)
      {
        ntokens++;
        strtok_ptr=NULL;
      }

    free(working_line);
    return(ntokens);
  }

  int isEndLine(char *line) {
    char *working_line;
    char *foo;
  
    working_line = strdup(line);
  
    foo = strtok(working_line, " ,;\t");

    if (foo != NULL) {
      
      if (!strcasecmp(foo, "end")) {
        free(working_line);
        return 1;
      }

    }
 
    free(working_line);
    return 0;
  }
  
  std::string OpenMD_itoa(int value, unsigned int base) {    
    const char digitMap[] = "0123456789abcdef"; 
    std::string buf;

    if (base == 0 || base > 16) {      
      return buf;
    }

    if (value == 0) {
      buf = "0";
      return buf;
    }
    
    // Take care negative int:
        
    std::string sign;    
    int _value = value; 
    if (value < 0) {
      _value = -value;
      sign = "-";
    }

    // Translating number to string with base:
    for (int i = 30; _value && i ; --i) {
      buf = digitMap[ _value % base ] + buf;
      _value /= base;
    }
    return sign.append(buf);
  }


  std::string getPrefix(const std::string& str) {
    return str.substr(0, str.rfind('.'));
  }

  std::string getSuffix(const std::string& str) {
    return str.substr(0, str.find('.'));
  }
  
  bool isInteger(const std::string& str) {
    
    bool result = false;
    
    std::string::const_iterator i = str.begin();    
    if (i != str.end() && (*i == '+' || *i == '-' || std::isdigit(*i) )) {
      ++i;        
      while (i != str.end() && std::isdigit(*i))
        ++i;
      if (i == str.end())
        result = true;
    }
    
    return result;
  }

  bool CaseInsensitiveEquals(const char ch1, const char ch2) {
    return std::toupper((unsigned char)ch1) == std::toupper((unsigned char)ch2);
  }
  
  size_t CaseInsensitiveFind(const std::string& str1, const std::string& str2) {
    std::string::const_iterator pos = std::search(str1.begin(), str1.end(), str2.begin(), str2.end(), CaseInsensitiveEquals);
    if (pos == str1.end())
      return std::string::npos;
    else
      return pos - str1.begin();
  }
  
  /**
   *    memparse - parse a string with mem suffixes into a number
   *    @param ptr: Where parse begins
   *    @param retptr: (output) Pointer to next char after parse completes
   *
   *    Parses a string into a number.  The number stored at @param ptr is
   *    potentially suffixed with %K (for kilobytes, or 1024 bytes),
   *    %M (for megabytes, or 1048576 bytes), or %G (for gigabytes, or
   *    1073741824).  If the number is suffixed with K, M, or G, then
   *    the return value is the number multiplied by one kilobyte, one
   *    megabyte, or one gigabyte, respectively.
   */  
  unsigned long long memparse (char *ptr,  char **retptr) {
    unsigned long long ret = strtoull (ptr, retptr, 0);
    
    switch (**retptr) {
    case 'G':
    case 'g':
      ret <<= 10;
    case 'M':
    case 'm':
      ret <<= 10;
    case 'K':
    case 'k':
      ret <<= 10;
      (*retptr)++;
    default:
      break;
    }
    return ret;
  }
  
}
Revision:	1874
Committed:	Wed May 15 15:09:35 2013 UTC (11 years, 11 months ago) by gezelter
File size:	8313 byte(s)
Log Message:	Fixed a bunch of cppcheck warnings.
#	User	Rev	Content
1	gezelter	406	/*
2	gezelter	246	* Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3			*
4			* The University of Notre Dame grants you ("Licensee") a
5			* non-exclusive, royalty free, license to use, modify and
6			* redistribute this software in source and binary code form, provided
7			* that the following conditions are met:
8			*
9	gezelter	1390	* 1. Redistributions of source code must retain the above copyright
10	gezelter	246	* notice, this list of conditions and the following disclaimer.
11			*
12	gezelter	1390	* 2. Redistributions in binary form must reproduce the above copyright
13	gezelter	246	* notice, this list of conditions and the following disclaimer in the
14			* documentation and/or other materials provided with the
15			* distribution.
16			*
17			* This software is provided "AS IS," without a warranty of any
18			* kind. All express or implied conditions, representations and
19			* warranties, including any implied warranty of merchantability,
20			* fitness for a particular purpose or non-infringement, are hereby
21			* excluded. The University of Notre Dame and its licensors shall not
22			* be liable for any damages suffered by licensee as a result of
23			* using, modifying or distributing the software or its
24			* derivatives. In no event will the University of Notre Dame or its
25			* licensors be liable for any lost revenue, profit or data, or for
26			* direct, indirect, special, consequential, incidental or punitive
27			* damages, however caused and regardless of the theory of liability,
28			* arising out of the use of or inability to use software, even if the
29			* University of Notre Dame has been advised of the possibility of
30			* such damages.
31	gezelter	1390	*
32			* SUPPORT OPEN SCIENCE! If you use OpenMD or its source code in your
33			* research, please cite the appropriate papers when you publish your
34			* work. Good starting points are:
35			*
36			* [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
37			* [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
38	gezelter	1850	* [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
39	gezelter	1665	* [4] Kuang & Gezelter, J. Chem. Phys. 133, 164101 (2010).
40			* [5] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41	gezelter	246	*/
42	tim	1024
43	gezelter	1767	#include "config.h"
44	tim	1024	#include <algorithm>
45	gezelter	1654	#include <stdlib.h>
46	gezelter	1767	#include <cctype>
47			#include <cstdlib>
48			#include <string>
49	tim	3	#include "utils/StringUtils.hpp"
50	gezelter	2
51	gezelter	1767	#ifdef _MSC_VER
52			#define strcasecmp _stricmp
53			#define strdup _strdup
54			#define strtoull _strtoui64
55			#endif
56
57
58	gezelter	1390	namespace OpenMD {
59	gezelter	406	std::string UpperCase(const std::string& S) {
60			std::string uc = S;
61			unsigned int n = uc.size();
62			for (unsigned int j = 0; j < n; j++) {
63			char sj = uc[j];
64			if (sj >= 'a' && sj <= 'z') uc[j] = (char)(sj - ('a' - 'A'));
65			}
66			return uc;
67	gezelter	2	}
68
69	gezelter	406	std::string LowerCase(const std::string& S) {
70			std::string lc = S;
71			unsigned int n = lc.size();
72			for (unsigned int j = 0; j < n; j++) {
73			char sj = lc[j];
74			if (sj >= 'A' && sj <= 'Z') lc[j] = (char)(sj + ('a' - 'A'));
75			}
76			return lc;
77	gezelter	2	}
78	gezelter	97
79	gezelter	406	char* trimSpaces(char *str) {
80			size_t len;
81			char right, left;
82	chrisfen	105
83	gezelter	406	if (strlen(str) == 0) return(str);
84	chrisfen	105
85	gezelter	406	/* Trim whitespace from left side */
86			for (left = str; isspace(*left); left++);
87	chrisfen	105
88	gezelter	406	/* Trim whitespace from right side */
89			if ((len = strlen(left)))
90			{
91			right = left + (len - 1);
92	chrisfen	105
93	gezelter	406	while (isspace(*right))
94			{
95			*right = '\0';
96			right--;
97			}
98			}
99	chrisfen	105
100	gezelter	406	/* Only do the str copy if there were spaces to the left */
101			if (left != str)
102			strcpy(str, left);
103	chrisfen	105
104	gezelter	406	return (str);
105			}
106	chrisfen	105
107	skuang	1305	int findBegin(std::istream &theStream, const char* startText ){
108	gezelter	406	const int MAXLEN = 1024;
109			char readLine[MAXLEN];
110			int foundText = 0;
111			int lineNum;
112			char* the_token;
113	gezelter	97
114	gezelter	406	// rewind the stream
115			theStream.seekg (0, std::ios::beg);
116			lineNum = 0;
117	gezelter	97
118	gezelter	406	if (!theStream.eof()) {
119			theStream.getline(readLine, MAXLEN);
120			lineNum++;
121			} else {
122			printf( "Error fast forwarding stream: stream is empty.\n");
123	gezelter	97	return -1;
124			}
125	gezelter	406
126			while ( !foundText ) {
127	chrisfen	105
128	gezelter	406	if (theStream.eof()) {
129			printf("Error fast forwarding stream at line %d: "
130			"stream ended unexpectedly.\n", lineNum);
131			return -1;
132	chrisfen	105	}
133
134	gezelter	406	the_token = strtok( readLine, " ,;\t" );
135			if ( the_token != NULL)
136			if (!strcasecmp("begin", the_token)) {
137			the_token = strtok( NULL, " ,;\t" );
138			if ( the_token != NULL){
139			foundText = !strcasecmp( startText, the_token );
140			}
141			}
142
143			if (!foundText) {
144			if (!theStream.eof()) {
145			theStream.getline(readLine, MAXLEN);
146			lineNum++;
147			} else {
148			printf( "Error fast forwarding stream at line %d: "
149			"stream ended unexpectedly.\n", lineNum);
150			return -1;
151			}
152	gezelter	97	}
153			}
154	gezelter	406	return lineNum;
155	gezelter	97	}
156
157	gezelter	406	int countTokens(char line, char delimiters) {
158			/* PURPOSE: RETURN A COUNT OF THE NUMBER OF TOKENS ON THE LINE. */
159	gezelter	97
160	gezelter	406	char working_line; / WORKING COPY OF LINE. */
161			int ntokens; /* NUMBER OF TOKENS FOUND IN LINE. */
162			char strtok_ptr; / POINTER FOR STRTOK. */
163	gezelter	97
164	gezelter	406	strtok_ptr= working_line= strdup(line);
165	gezelter	97
166	gezelter	406	ntokens=0;
167			while (strtok(strtok_ptr,delimiters)!=NULL)
168			{
169			ntokens++;
170			strtok_ptr=NULL;
171			}
172	gezelter	97
173	gezelter	406	free(working_line);
174			return(ntokens);
175			}
176	gezelter	97
177	gezelter	406	int isEndLine(char *line) {
178			char *working_line;
179			char *foo;
180	gezelter	97
181	gezelter	406	working_line = strdup(line);
182	gezelter	97
183	gezelter	406	foo = strtok(working_line, " ,;\t");
184	gezelter	97
185	gezelter	406	if (foo != NULL) {
186	gezelter	1874
187			if (!strcasecmp(foo, "end")) {
188			free(working_line);
189			return 1;
190			}
191	gezelter	107
192	gezelter	406	}
193
194	gezelter	1874	free(working_line);
195	gezelter	406	return 0;
196	gezelter	107	}
197	gezelter	406
198	gezelter	1390	std::string OpenMD_itoa(int value, unsigned int base) {
199	gezelter	406	const char digitMap[] = "0123456789abcdef";
200			std::string buf;
201	gezelter	246
202	gezelter	406	if (base == 0 \|\| base > 16) {
203			return buf;
204			}
205	gezelter	246
206	gezelter	406	if (value == 0) {
207			buf = "0";
208			return buf;
209			}
210
211			// Take care negative int:
212
213			std::string sign;
214			int _value = value;
215			if (value < 0) {
216			_value = -value;
217			sign = "-";
218			}
219	gezelter	246
220	gezelter	406	// Translating number to string with base:
221			for (int i = 30; _value && i ; --i) {
222			buf = digitMap[ _value % base ] + buf;
223			_value /= base;
224			}
225			return sign.append(buf);
226			}
227
228
229			std::string getPrefix(const std::string& str) {
230			return str.substr(0, str.rfind('.'));
231			}
232
233			std::string getSuffix(const std::string& str) {
234	gezelter	246	return str.substr(0, str.find('.'));
235	gezelter	406	}
236	gezelter	1629
237			bool isInteger(const std::string& str) {
238
239	tim	838	bool result = false;
240	gezelter	1629
241	tim	838	std::string::const_iterator i = str.begin();
242			if (i != str.end() && (i == '+' \|\| i == '-' \|\| std::isdigit(*i) )) {
243	gezelter	1629	++i;
244			while (i != str.end() && std::isdigit(*i))
245			++i;
246			if (i == str.end())
247			result = true;
248	tim	838	}
249
250			return result;
251	gezelter	1629	}
252	tim	838
253	gezelter	1629	bool CaseInsensitiveEquals(const char ch1, const char ch2) {
254			return std::toupper((unsigned char)ch1) == std::toupper((unsigned char)ch2);
255			}
256
257			size_t CaseInsensitiveFind(const std::string& str1, const std::string& str2) {
258			std::string::const_iterator pos = std::search(str1.begin(), str1.end(), str2.begin(), str2.end(), CaseInsensitiveEquals);
259			if (pos == str1.end())
260			return std::string::npos;
261			else
262			return pos - str1.begin();
263			}
264
265			/**
266			* memparse - parse a string with mem suffixes into a number
267	gezelter	1808	* @param ptr: Where parse begins
268			* @param retptr: (output) Pointer to next char after parse completes
269	gezelter	1629	*
270	gezelter	1808	* Parses a string into a number. The number stored at @param ptr is
271	gezelter	1629	* potentially suffixed with %K (for kilobytes, or 1024 bytes),
272			* %M (for megabytes, or 1048576 bytes), or %G (for gigabytes, or
273			* 1073741824). If the number is suffixed with K, M, or G, then
274			* the return value is the number multiplied by one kilobyte, one
275			* megabyte, or one gigabyte, respectively.
276			*/
277			unsigned long long memparse (char ptr, char *retptr) {
278			unsigned long long ret = strtoull (ptr, retptr, 0);
279
280			switch (**retptr) {
281			case 'G':
282			case 'g':
283			ret <<= 10;
284			case 'M':
285			case 'm':
286			ret <<= 10;
287			case 'K':
288			case 'k':
289			ret <<= 10;
290			(*retptr)++;
291			default:
292			break;
293			}
294			return ret;
295			}
296
297	tim	838	}