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128 lines
3.6 KiB
C++
128 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// This file was shamelessly copied from mozilla/xpinstall/wizard/unix/src2
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#ifndef nsINIParser_h__
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#define nsINIParser_h__
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#ifdef MOZILLA_INTERNAL_API
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#define nsINIParser nsINIParser_internal
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#endif
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#include "nscore.h"
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#include "nsClassHashtable.h"
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#include "nsAutoPtr.h"
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#include <stdio.h>
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class nsIFile;
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class nsINIParser
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{
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public:
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nsINIParser() {}
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~nsINIParser() {}
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/**
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* Initialize the INIParser with a nsIFile. If this method fails, no
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* other methods should be called. This method reads and parses the file,
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* the class does not hold a file handle open. An instance must only be
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* initialized once.
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*/
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nsresult Init(nsIFile* aFile);
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/**
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* Initialize the INIParser with a file path. If this method fails, no
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* other methods should be called. This method reads and parses the file,
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* the class does not hold a file handle open. An instance must only
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* be initialized once.
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*/
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nsresult Init(const char* aPath);
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/**
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* Callback for GetSections
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* @return false to stop enumeration, or true to continue.
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*/
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typedef bool (*INISectionCallback)(const char* aSection, void* aClosure);
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/**
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* Enumerate the sections within the INI file.
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*/
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nsresult GetSections(INISectionCallback aCB, void* aClosure);
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/**
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* Callback for GetStrings
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* @return false to stop enumeration, or true to continue
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*/
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typedef bool (*INIStringCallback)(const char* aString, const char* aValue,
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void* aClosure);
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/**
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* Enumerate the strings within a section. If the section does
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* not exist, this function will silently return.
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*/
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nsresult GetStrings(const char* aSection,
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INIStringCallback aCB, void* aClosure);
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/**
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* Get the value of the specified key in the specified section
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* of the INI file represented by this instance.
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*
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* @param aSection section name
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* @param aKey key name
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* @param aResult the value found
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* @throws NS_ERROR_FAILURE if the specified section/key could not be
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* found.
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*/
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nsresult GetString(const char* aSection, const char* aKey,
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nsACString& aResult);
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/**
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* Alternate signature of GetString that uses a pre-allocated buffer
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* instead of a nsACString (for use in the standalone glue before
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* the glue is initialized).
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*
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* @throws NS_ERROR_LOSS_OF_SIGNIFICANT_DATA if the aResult buffer is not
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* large enough for the data. aResult will be filled with as
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* much data as possible.
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*
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* @see GetString [1]
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*/
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nsresult GetString(const char* aSection, const char* aKey,
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char* aResult, uint32_t aResultLen);
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private:
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struct INIValue
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{
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INIValue(const char* aKey, const char* aValue)
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: key(aKey)
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, value(aValue)
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{
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}
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const char* key;
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const char* value;
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nsAutoPtr<INIValue> next;
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};
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struct GSClosureStruct
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{
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INISectionCallback usercb;
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void* userclosure;
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};
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nsClassHashtable<nsDepCharHashKey, INIValue> mSections;
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nsAutoArrayPtr<char> mFileContents;
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nsresult InitFromFILE(FILE* aFd);
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static PLDHashOperator GetSectionsCB(const char* aKey,
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INIValue* aData, void* aClosure);
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};
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#endif /* nsINIParser_h__ */
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