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Browse - Programming Tips - How do I read a section of an .ini file?

Date: 2008may27
Platform: win32
Language: C/C++

Q.  How do I read a section of an .ini file?

A.  This code shows how to do just that.

#include <map> // Helper inline int FileSize(LPCSTR file) { struct stat sb; if (stat(file, &sb) < 0) return -1; return sb.st_size; } // This is where the section will go typedef std::map<CString, CString> SECT; static BOOL GetSection(LPCSTR szFile, LPCSTR szSection, SECT &section) { int size; LPSTR pBuf; LPSTR p, q, next, val; section.clear(); // Allocate a buffer as big as the .ini file if ((size = FileSize(szFile)) < 0) return FALSE; if ((pBuf = (LPSTR)malloc(size)) == NULL) return FALSE; // Read the section into memory GetPrivateProfileSection(szSection, pBuf, size, szFile); for (p = pBuf; *p; p = next) { next = p + lstrlen(p) + 1; if ((q = strchr(p, '=')) == NULL) { q = p + lstrlen(p); val = q; } else { val = q + 1; } *q = '\0'; section[p] = val; } free(pBuf); return TRUE; } // Example use main() { LPCSTR szFile = "c:/temporary/myfile.ini"; LPCSTR szSection = "stuff"; SECT sect; GetSection(szFile, szSection, sect); for (SECT::iterator it = sect.begin(); it != sect.end(); it++) { printf("[%s]=[%s]\n", it->first, it->second); } }

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