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chindex.c
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1 /************************************************************************/
2 /**
3 
4  \file chindex.c
5 
6  \version V1.22
7  \date 07.07.14
8  \brief
9 
10  \copyright (c) Dr. Andrew C. R. Martin, University of Reading, 2002-14
11  \author Dr. Andrew C. R. Martin
12  \par
13  Institute of Structural & Molecular Biology,
14  University College London,
15  Gower Street,
16  London.
17  WC1E 6BT.
18  \par
19  andrew@bioinf.org.uk
20  andrew.martin@ucl.ac.uk
21 
22 **************************************************************************
23 
24  This code is NOT IN THE PUBLIC DOMAIN, but it may be copied
25  according to the conditions laid out in the accompanying file
26  COPYING.DOC.
27 
28  The code may be modified as required, but any modifications must be
29  documented so that the person responsible can be identified.
30 
31  The code may not be sold commercially or included as part of a
32  commercial product except as described in the file COPYING.DOC.
33 
34 **************************************************************************
35 
36  Description:
37  ============
38 
39 
40 **************************************************************************
41 
42  Usage:
43  ======
44 
45 **************************************************************************
46 
47  Revision History:
48  =================
49 - V1.1 08.02.91 Added KillLine()
50 - V1.2 10.02.91 Added setextn() and index()
51 - V1.3 20.03.91 Added Word()
52 - V1.4 28.05.92 ANSIed
53 - V1.5 22.06.92 Added tab check to Word(). Improved setextn().
54  Added WordN(). Documented other routines.
55 - V1.6 27.07.93 Corrected fsscanf() for double precision
56 - V1.7 07.10.93 Checks made on case before toupper()/tolower()
57  for SysV compatibility. Also index() becomes
58  chindex()
59 - V1.8 18.03.94 getc() -> fgetc()
60 - V1.9 11.05.94 Added GetFilestem(), upstrcmp(), upstrncmp() &
61  GetWord()
62 - V1.10 24.08.94 Added OpenStdFiles()
63 - V1.11 08.03.95 Corrected OpenFile() for non-UNIX
64 - V1.12 09.03.95 Added check on non-NULL filename in OpenFile()
65 - V1.13 17.07.95 Added countchar()
66 - V1.14 18.10.95 Moved YorN() to WindIO.c
67 - V1.15 06.11.95 Added StoreString(), InStringList() and FreeStringList()
68 - V1.16 22.11.95 Moved ftostr() to generam.c
69 - V1.17 15.12.95 Added QueryStrStr()
70 - V1.18 18.12.95 OpenStdFiles() treats filename of - as stdin/stdout
71 - V1.19 05.02.96 OpenStdFiles() allows NULL pointers instead if filenames
72 - V1.20 18.09.96 Added padchar()
73 - V1.21 18.06.02 Added string.h
74 - V1.22 07.07.14 Use bl prefix for functions By: CTP
75 
76 *************************************************************************/
77 /* Doxygen
78  -------
79  #GROUP General Programming
80  #SUBGROUP String handling
81  #FUNCTION blChindex()
82  Returns the offset of a character in a string. -1 if not found. This is
83  used in a similar manner to strchr(), but gives an offset in the string
84  rather than a pointer to the character.
85 */
86 /************************************************************************/
87 /* Includes
88 */
89 #include <string.h>
90 
91 /************************************************************************/
92 /* Defines and macros
93 */
94 
95 /************************************************************************/
96 /* Globals
97 */
98 
99 /************************************************************************/
100 /* Prototypes
101 */
102 
103 
104 /************************************************************************/
105 /*>int blChindex(char *string, char ch)
106  ------------------------------------
107 *//**
108 
109  \param[in] *string A string
110  \param[in] ch A character for which to search
111  \return The offset of ch in string.
112 
113  Returns the offset of a character in a string. -1 if not found. This is
114  used in a similar manner to strchr(), but gives an offset in the string
115  rather than a pointer to the character.
116 
117 - 10.02.91 Original
118 - 28.05.92 ANSIed
119 - 06.10.93 Changed name to chindex() to avoid UNIX name clash
120 - 07.07.14 Use bl prefix for functions By: CTP
121 */
122 int blChindex(char *string,
123  char ch)
124 {
125  int count;
126 
127  for(count=0;count<strlen(string);count++)
128  if(string[count] == ch) break;
129 
130  if(count >= strlen(string)) count = -1;
131 
132  return(count);
133 }
134 
135 
blChindex
int blChindex(char *string, char ch)
Definition: chindex.c:122
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