Added simpleini library

src/openalpr/simpleini/snippets.cpp

@@ -0,0 +1,123 @@
+// File:    snippets.cpp
+// Library: SimpleIni
+// Author:  Brodie Thiesfield <code@jellycan.com>
+// Source:  http://code.jellycan.com/simpleini/
+//
+// Snippets that are used on the website
+
+#ifdef _WIN32
+# pragma warning(disable: 4786)
+#endif
+
+#ifndef _WIN32
+# include <unistd.h>
+#endif
+#include <fstream>
+
+#define SI_SUPPORT_IOSTREAMS
+#include "SimpleIni.h"
+
+bool
+snippets(
+    const char *    a_pszFile,
+    bool            a_bIsUtf8,
+    bool            a_bUseMultiKey,
+    bool            a_bUseMultiLine
+    )
+{
+    // LOADING DATA
+
+    // load from a data file
+    CSimpleIniA ini(a_bIsUtf8, a_bUseMultiKey, a_bUseMultiLine);
+    SI_Error rc = ini.LoadFile(a_pszFile);
+    if (rc < 0) return false;
+
+    // load from a string
+    std::string strData;
+    rc = ini.LoadData(strData.c_str(), strData.size());
+    if (rc < 0) return false;
+
+    // GETTING SECTIONS AND KEYS
+
+    // get all sections
+    CSimpleIniA::TNamesDepend sections;
+    ini.GetAllSections(sections);
+
+    // get all keys in a section
+    CSimpleIniA::TNamesDepend keys;
+    ini.GetAllKeys("section-name", keys);
+
+    // GETTING VALUES
+
+    // get the value of a key
+    const char * pszValue = ini.GetValue("section-name",
+        "key-name", NULL /*default*/);
+
+    // get the value of a key which may have multiple
+    // values. If bHasMultipleValues is true, then just
+    // one value has been returned
+    bool bHasMultipleValues;
+    pszValue = ini.GetValue("section-name", "key-name",
+        NULL /*default*/, &bHasMultipleValues);
+
+    // get all values of a key with multiple values
+    CSimpleIniA::TNamesDepend values;
+    ini.GetAllValues("section-name", "key-name", values);
+
+    // sort the values into the original load order
+#if defined(_MSC_VER) && _MSC_VER <= 1200
+    /** STL of VC6 doesn't allow me to specify my own comparator for list::sort() */
+    values.sort();
+#else
+    values.sort(CSimpleIniA::Entry::LoadOrder());
+#endif
+
+    // output all of the items
+    CSimpleIniA::TNamesDepend::const_iterator i;
+    for (i = values.begin(); i != values.end(); ++i) {
+        printf("key-name = '%s'\n", i->pItem);
+    }
+
+    // MODIFYING DATA
+
+    // adding a new section
+    rc = ini.SetValue("new-section", NULL, NULL);
+    if (rc < 0) return false;
+    printf("section: %s\n", rc == SI_INSERTED ?
+        "inserted" : "updated");
+
+    // adding a new key ("new-section" will be added
+    // automatically if it doesn't already exist.
+    rc = ini.SetValue("new-section", "new-key", "value");
+    if (rc < 0) return false;
+    printf("key: %s\n", rc == SI_INSERTED ?
+        "inserted" : "updated");
+
+    // changing the value of a key
+    rc = ini.SetValue("section", "key", "updated-value");
+    if (rc < 0) return false;
+    printf("key: %s\n", rc == SI_INSERTED ?
+        "inserted" : "updated");
+
+    // DELETING DATA
+
+    // deleting a key from a section. Optionally the entire
+    // section may be deleted if it is now empty.
+    ini.Delete("section-name", "key-name",
+        true /*delete the section if empty*/);
+
+    // deleting an entire section and all keys in it
+    ini.Delete("section-name", NULL);
+
+    // SAVING DATA
+
+    // save the data to a string
+    rc = ini.Save(strData);
+    if (rc < 0) return false;
+
+    // save the data back to the file
+    rc = ini.SaveFile(a_pszFile);
+    if (rc < 0) return false;
+
+    return true;
+}