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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /xpcom/base/nsINIParser.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'xpcom/base/nsINIParser.h')
-rw-r--r--xpcom/base/nsINIParser.h168
1 files changed, 168 insertions, 0 deletions
diff --git a/xpcom/base/nsINIParser.h b/xpcom/base/nsINIParser.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This file was shamelessly copied from mozilla/xpinstall/wizard/unix/src2
+
+#ifndef nsINIParser_h__
+#define nsINIParser_h__
+
+#ifdef MOZILLA_INTERNAL_API
+# define nsINIParser nsINIParser_internal
+#endif
+
+#include "nscore.h"
+#include "nsClassHashtable.h"
+#include "mozilla/UniquePtr.h"
+
+#include <stdio.h>
+
+class nsIFile;
+
+class nsINIParser {
+ public:
+ nsINIParser() {}
+ ~nsINIParser() = default;
+
+ /**
+ * Initialize the INIParser with a nsIFile. If this method fails, no
+ * other methods should be called. This method reads and parses the file,
+ * the class does not hold a file handle open. An instance must only be
+ * initialized once.
+ */
+ nsresult Init(nsIFile* aFile);
+
+ nsresult InitFromString(const nsCString& aStr);
+
+ /**
+ * Callback for GetSections
+ * @return false to stop enumeration, or true to continue.
+ */
+ typedef bool (*INISectionCallback)(const char* aSection, void* aClosure);
+
+ /**
+ * Enumerate the sections within the INI file.
+ */
+ nsresult GetSections(INISectionCallback aCB, void* aClosure);
+
+ /**
+ * Callback for GetStrings
+ * @return false to stop enumeration, or true to continue
+ */
+ typedef bool (*INIStringCallback)(const char* aString, const char* aValue,
+ void* aClosure);
+
+ /**
+ * Enumerate the strings within a section. If the section does
+ * not exist, this function will silently return.
+ */
+ nsresult GetStrings(const char* aSection, INIStringCallback aCB,
+ void* aClosure);
+
+ /**
+ * Get the value of the specified key in the specified section
+ * of the INI file represented by this instance.
+ *
+ * @param aSection section name
+ * @param aKey key name
+ * @param aResult the value found
+ * @throws NS_ERROR_FAILURE if the specified section/key could not be
+ * found.
+ */
+ nsresult GetString(const char* aSection, const char* aKey,
+ nsACString& aResult);
+
+ /**
+ * Alternate signature of GetString that uses a pre-allocated buffer
+ * instead of a nsACString (for use in the standalone glue before
+ * the glue is initialized).
+ *
+ * @throws NS_ERROR_LOSS_OF_SIGNIFICANT_DATA if the aResult buffer is not
+ * large enough for the data. aResult will be filled with as
+ * much data as possible.
+ *
+ * @see GetString [1]
+ */
+ nsresult GetString(const char* aSection, const char* aKey, char* aResult,
+ uint32_t aResultLen);
+
+ /**
+ * Sets the value of the specified key in the specified section. The section
+ * is created if it does not already exist.
+ *
+ * @oaram aSection section name
+ * @param aKey key name
+ * @param aValue the value to set
+ */
+ nsresult SetString(const char* aSection, const char* aKey,
+ const char* aValue);
+
+ /**
+ * Deletes the value of the specified key in the specified section.
+ *
+ * @param aSection section name
+ * @param aKey key name
+ *
+ * @throws NS_ERROR_FAILURE if the string was not set.
+ */
+ nsresult DeleteString(const char* aSection, const char* aKey);
+
+ /**
+ * Deletes the specified section.
+ *
+ * @param aSection section name
+ *
+ * @throws NS_ERROR_FAILURE if the section did not exist.
+ */
+ nsresult DeleteSection(const char* aSection);
+
+ /**
+ * Renames the specified section.
+ *
+ * @param aSection section name
+ * @param aNewName new section name
+ *
+ * @throws NS_ERROR_FAILURE if the section did not exist.
+ * @throws NS_ERROR_ILLEGAL_VALUE if the new section name already exists.
+ */
+ nsresult RenameSection(const char* aSection, const char* aNewName);
+
+ /**
+ * Writes the ini data to disk.
+ * @param aFile the file to write to
+ * @throws NS_ERROR_FAILURE on failure.
+ */
+ nsresult WriteToFile(nsIFile* aFile);
+
+ void WriteToString(nsACString& aOutput);
+
+ private:
+ struct INIValue {
+ INIValue(const char* aKey, const char* aValue)
+ : key(strdup(aKey)), value(strdup(aValue)) {}
+
+ ~INIValue() {
+ delete key;
+ delete value;
+ }
+
+ void SetValue(const char* aValue) {
+ delete value;
+ value = strdup(aValue);
+ }
+
+ const char* key;
+ const char* value;
+ mozilla::UniquePtr<INIValue> next;
+ };
+
+ nsClassHashtable<nsCharPtrHashKey, INIValue> mSections;
+
+ bool IsValidSection(const char* aSection);
+ bool IsValidKey(const char* aKey);
+ bool IsValidValue(const char* aValue);
+};
+
+#endif /* nsINIParser_h__ */