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, 24107 (2008).          
 * [4]  Vardeman & Gezelter, in progress (2009).                        
 */

#include <algorithm>
#include "utils/StringUtils.hpp"

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;
    char* eof_test;

    // 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")) return 1;

    }
 
    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();
}

}
Revision:	1558
Committed:	Wed May 11 16:32:48 2011 UTC (13 years, 11 months ago) by gezelter
File size:	7005 byte(s)
Log Message:	Updated antlr, some minor formatting changes
#	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			* [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).
39			* [4] Vardeman & Gezelter, in progress (2009).
40	gezelter	246	*/
41	tim	1024
42	gezelter	1558	#include <algorithm>
43	tim	3	#include "utils/StringUtils.hpp"
44	gezelter	2
45	gezelter	1390	namespace OpenMD {
46	gezelter	406	std::string UpperCase(const std::string& S) {
47			std::string uc = S;
48			unsigned int n = uc.size();
49			for (unsigned int j = 0; j < n; j++) {
50			char sj = uc[j];
51			if (sj >= 'a' && sj <= 'z') uc[j] = (char)(sj - ('a' - 'A'));
52			}
53			return uc;
54	gezelter	2	}
55
56	gezelter	406	std::string LowerCase(const std::string& S) {
57			std::string lc = S;
58			unsigned int n = lc.size();
59			for (unsigned int j = 0; j < n; j++) {
60			char sj = lc[j];
61			if (sj >= 'A' && sj <= 'Z') lc[j] = (char)(sj + ('a' - 'A'));
62			}
63			return lc;
64	gezelter	2	}
65	gezelter	97
66	gezelter	406	char* trimSpaces(char *str) {
67			size_t len;
68			char right, left;
69	chrisfen	105
70	gezelter	406	if (strlen(str) == 0) return(str);
71	chrisfen	105
72	gezelter	406	/* Trim whitespace from left side */
73			for (left = str; isspace(*left); left++);
74	chrisfen	105
75	gezelter	406	/* Trim whitespace from right side */
76			if ((len = strlen(left)))
77			{
78			right = left + (len - 1);
79	chrisfen	105
80	gezelter	406	while (isspace(*right))
81			{
82			*right = '\0';
83			right--;
84			}
85			}
86	chrisfen	105
87	gezelter	406	/* Only do the str copy if there were spaces to the left */
88			if (left != str)
89			strcpy(str, left);
90	chrisfen	105
91	gezelter	406	return (str);
92			}
93	chrisfen	105
94	skuang	1305	int findBegin(std::istream &theStream, const char* startText ){
95	gezelter	406	const int MAXLEN = 1024;
96			char readLine[MAXLEN];
97			int foundText = 0;
98			int lineNum;
99			char* the_token;
100			char* eof_test;
101	gezelter	97
102	gezelter	406	// rewind the stream
103			theStream.seekg (0, std::ios::beg);
104			lineNum = 0;
105	gezelter	97
106	gezelter	406	if (!theStream.eof()) {
107			theStream.getline(readLine, MAXLEN);
108			lineNum++;
109			} else {
110			printf( "Error fast forwarding stream: stream is empty.\n");
111	gezelter	97	return -1;
112			}
113	gezelter	406
114			while ( !foundText ) {
115	chrisfen	105
116	gezelter	406	if (theStream.eof()) {
117			printf("Error fast forwarding stream at line %d: "
118			"stream ended unexpectedly.\n", lineNum);
119			return -1;
120	chrisfen	105	}
121
122	gezelter	406	the_token = strtok( readLine, " ,;\t" );
123			if ( the_token != NULL)
124			if (!strcasecmp("begin", the_token)) {
125			the_token = strtok( NULL, " ,;\t" );
126			if ( the_token != NULL){
127			foundText = !strcasecmp( startText, the_token );
128			}
129			}
130
131			if (!foundText) {
132			if (!theStream.eof()) {
133			theStream.getline(readLine, MAXLEN);
134			lineNum++;
135			} else {
136			printf( "Error fast forwarding stream at line %d: "
137			"stream ended unexpectedly.\n", lineNum);
138			return -1;
139			}
140	gezelter	97	}
141			}
142	gezelter	406	return lineNum;
143	gezelter	97	}
144
145	gezelter	406	int countTokens(char line, char delimiters) {
146			/* PURPOSE: RETURN A COUNT OF THE NUMBER OF TOKENS ON THE LINE. */
147	gezelter	97
148	gezelter	406	char working_line; / WORKING COPY OF LINE. */
149			int ntokens; /* NUMBER OF TOKENS FOUND IN LINE. */
150			char strtok_ptr; / POINTER FOR STRTOK. */
151	gezelter	97
152	gezelter	406	strtok_ptr= working_line= strdup(line);
153	gezelter	97
154	gezelter	406	ntokens=0;
155			while (strtok(strtok_ptr,delimiters)!=NULL)
156			{
157			ntokens++;
158			strtok_ptr=NULL;
159			}
160	gezelter	97
161	gezelter	406	free(working_line);
162			return(ntokens);
163			}
164	gezelter	97
165	gezelter	406	int isEndLine(char *line) {
166			char *working_line;
167			char *foo;
168	gezelter	97
169	gezelter	406	working_line = strdup(line);
170	gezelter	97
171	gezelter	406	foo = strtok(working_line, " ,;\t");
172	gezelter	97
173	gezelter	406	if (foo != NULL) {
174	gezelter	107
175	gezelter	406	if (!strcasecmp(foo, "end")) return 1;
176	gezelter	107
177	gezelter	406	}
178
179			return 0;
180	gezelter	107	}
181	gezelter	406
182	gezelter	1390	std::string OpenMD_itoa(int value, unsigned int base) {
183	gezelter	406	const char digitMap[] = "0123456789abcdef";
184			std::string buf;
185	gezelter	246
186	gezelter	406	if (base == 0 \|\| base > 16) {
187			return buf;
188			}
189	gezelter	246
190	gezelter	406	if (value == 0) {
191			buf = "0";
192			return buf;
193			}
194
195			// Take care negative int:
196
197			std::string sign;
198			int _value = value;
199			if (value < 0) {
200			_value = -value;
201			sign = "-";
202			}
203	gezelter	246
204	gezelter	406	// Translating number to string with base:
205			for (int i = 30; _value && i ; --i) {
206			buf = digitMap[ _value % base ] + buf;
207			_value /= base;
208			}
209			return sign.append(buf);
210			}
211
212
213			std::string getPrefix(const std::string& str) {
214			return str.substr(0, str.rfind('.'));
215			}
216
217			std::string getSuffix(const std::string& str) {
218	gezelter	246	return str.substr(0, str.find('.'));
219	gezelter	406	}
220	gezelter	246
221	gezelter	1558	bool isInteger(const std::string& str) {
222
223	tim	838	bool result = false;
224	gezelter	1558
225	tim	838	std::string::const_iterator i = str.begin();
226			if (i != str.end() && (i == '+' \|\| i == '-' \|\| std::isdigit(*i) )) {
227	gezelter	1558	++i;
228			while (i != str.end() && std::isdigit(*i))
229			++i;
230			if (i == str.end())
231			result = true;
232	tim	838	}
233
234			return result;
235	gezelter	1558	}
236
237	tim	1024	bool CaseInsensitiveEquals(const char ch1, const char ch2) {
238			return std::toupper((unsigned char)ch1) == std::toupper((unsigned char)ch2);
239	tim	838	}
240	tim	1024
241			size_t CaseInsensitiveFind(const std::string& str1, const std::string& str2) {
242			std::string::const_iterator pos = std::search(str1.begin(), str1.end(), str2.begin(), str2.end(), CaseInsensitiveEquals);
243			if (pos == str1.end())
244			return std::string::npos;
245			else
246			return pos - str1.begin();
247			}
248
249			}