505 lines
11 KiB
C++
505 lines
11 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include <stdlib.h>
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#include <stdio.h>
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#include "StringUtil.h"
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// faster than sscanf
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bool AsciiToHex(const char* _szValue, u32& result)
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{
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u32 value = 0;
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size_t finish = strlen(_szValue);
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if (finish > 8)
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finish = 8; // Max 32-bit values are supported.
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for (size_t count = 0; count < finish; count++)
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{
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value <<= 4;
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switch (_szValue[count])
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{
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case '0': break;
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case '1': value += 1; break;
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case '2': value += 2; break;
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case '3': value += 3; break;
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case '4': value += 4; break;
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case '5': value += 5; break;
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case '6': value += 6; break;
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case '7': value += 7; break;
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case '8': value += 8; break;
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case '9': value += 9; break;
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case 'A':
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case 'a': value += 10; break;
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case 'B':
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case 'b': value += 11; break;
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case 'C':
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case 'c': value += 12; break;
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case 'D':
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case 'd': value += 13; break;
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case 'E':
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case 'e': value += 14; break;
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case 'F':
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case 'f': value += 15; break;
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default:
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return false;
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break;
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}
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}
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result = value;
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return (true);
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}
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// Convert AB to it's ascii table entry numbers 0x4142
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u32 Ascii2Hex(std::string _Text)
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{
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// Reset the return value zero
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u32 Result = 0;
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// Max 32-bit values are supported
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size_t Length = _Text.length();
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if (Length > 4)
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Length = 4;
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for (int i = 0; i < (int)Length; i++)
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{
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// Add up the values, for example RSPE becomes, 0x52000000, then 0x52530000 and so on
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Result += _Text.c_str()[i] << ((Length - 1 - i) * 8);
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}
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// Return the value
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return Result;
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}
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// Convert it back again
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std::string Hex2Ascii(u32 _Text)
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{
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// Create temporary storate
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char Result[5]; // need space for the final \0
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// Go through the four characters
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sprintf(Result, "%c%c%c%c", _Text >> 24, _Text >> 16, _Text >> 8, _Text);
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// Return the string
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std::string StrResult = Result;
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return StrResult;
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}
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bool CharArrayFromFormatV(char* out, int outsize, const char* format, va_list args)
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{
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int writtenCount = vsnprintf(out, outsize, format, args);
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if (writtenCount > 0 && writtenCount < outsize)
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{
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out[writtenCount] = '\0';
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return true;
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}
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else
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{
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out[outsize - 1] = '\0';
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return false;
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}
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}
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// Expensive!
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void ToStringFromFormat(std::string* out, const char* format, ...)
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{
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int writtenCount = -1;
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int newSize = (int)strlen(format) + 4;
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char *buf = 0;
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va_list args;
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while (writtenCount < 0)
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{
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delete [] buf;
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buf = new char[newSize + 1];
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va_start(args, format);
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writtenCount = vsnprintf(buf, newSize, format, args);
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va_end(args);
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if (writtenCount >= (int)newSize) {
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writtenCount = -1;
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}
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// ARGH! vsnprintf does no longer return -1 on truncation in newer libc!
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// WORKAROUND! let's fake the old behaviour (even though it's less efficient).
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// TODO: figure out why the fix causes an invalid read in strlen called from vsnprintf :(
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// if (writtenCount >= (int)newSize)
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// writtenCount = -1;
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newSize *= 2;
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}
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buf[writtenCount] = '\0';
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*out = buf;
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delete[] buf;
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}
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std::string StringFromFormat(const char* format, ...)
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{
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int writtenCount = -1;
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int newSize = (int)strlen(format) + 4;
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char *buf = 0;
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va_list args;
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while (writtenCount < 0)
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{
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delete [] buf;
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buf = new char[newSize + 1];
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va_start(args, format);
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writtenCount = vsnprintf(buf, newSize, format, args);
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va_end(args);
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if (writtenCount >= (int)newSize) {
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writtenCount = -1;
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}
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// ARGH! vsnprintf does no longer return -1 on truncation in newer libc!
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// WORKAROUND! let's fake the old behaviour (even though it's less efficient).
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// TODO: figure out why the fix causes an invalid read in strlen called from vsnprintf :(
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// if (writtenCount >= (int)newSize)
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// writtenCount = -1;
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newSize *= 2;
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}
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buf[writtenCount] = '\0';
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std::string temp = buf;
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return temp;
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}
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// For Debugging. Read out an u8 array.
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std::string ArrayToString(const u8 *data, u32 size, u32 offset, int line_len, bool Spaces)
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{
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std::string Tmp, Spc;
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if (Spaces) Spc = " "; else Spc = "";
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for (u32 i = 0; i < size; i++)
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{
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Tmp += StringFromFormat("%02x%s", data[i + offset], Spc.c_str());
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if(i > 1 && (i + 1) % line_len == 0) Tmp.append("\n"); // break long lines
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}
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return Tmp;
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}
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// Turns " hej " into "hej". Also handles tabs.
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std::string StripSpaces(const std::string &str)
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{
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std::string s = str;
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int i;
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for (i = 0; i < (int)s.size(); i++)
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{
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if ((s[i] != ' ') && (s[i] != 9))
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{
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break;
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}
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}
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s = s.substr(i);
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for (i = (int)s.size() - 1; i > 0; i--)
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{
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if ((s[i] != ' ') && (s[i] != 9))
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{
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break;
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}
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}
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return s.substr(0, i + 1);
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}
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// "\"hello\"" is turned to "hello"
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// This one assumes that the string has already been space stripped in both
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// ends, as done by StripSpaces above, for example.
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std::string StripQuotes(const std::string& s)
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{
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if ((s[0] == '\"') && (s[s.size() - 1] == '\"'))
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return s.substr(1, s.size() - 2);
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else
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return s;
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}
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// "\"hello\"" is turned to "hello"
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// This one assumes that the string has already been space stripped in both
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// ends, as done by StripSpaces above, for example.
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std::string StripNewline(const std::string& s)
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{
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if (!s.size())
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return s;
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else if (s[s.size() - 1] == '\n')
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return s.substr(0, s.size() - 1);
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else
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return s;
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}
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bool TryParseInt(const char* str, int* outVal)
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{
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const char* s = str;
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int value = 0;
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bool negativ = false;
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if (*s == '-')
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{
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negativ = true;
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s++;
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}
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while (*s)
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{
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char c = *s++;
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if ((c < '0') || (c > '9'))
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{
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return false;
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}
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value = value * 10 + (c - '0');
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}
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if (negativ)
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value = -value;
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*outVal = value;
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return true;
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}
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bool TryParseBool(const char* str, bool* output)
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{
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if ((str[0] == '1') || !strcmp(str, "true") || !strcmp(str, "True") || !strcmp(str, "TRUE"))
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{
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*output = true;
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return true;
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}
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else if (str[0] == '0' || !strcmp(str, "false") || !strcmp(str, "False") || !strcmp(str, "FALSE"))
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{
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*output = false;
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return true;
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}
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return false;
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}
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std::string StringFromInt(int value)
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{
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char temp[16];
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sprintf(temp, "%i", value);
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return std::string(temp);
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}
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std::string StringFromBool(bool value)
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{
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return value ? "True" : "False";
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}
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#ifdef _WIN32
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bool SplitPath(const std::string& full_path, std::string* _pPath, std::string* _pFilename, std::string* _pExtension)
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{
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char drive[_MAX_DRIVE];
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char dir[_MAX_DIR];
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char fname[_MAX_FNAME];
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char ext[_MAX_EXT];
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if (_splitpath_s(full_path.c_str(), drive, _MAX_DRIVE, dir, _MAX_DIR, fname, _MAX_FNAME, ext, _MAX_EXT) == 0)
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{
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if (_pPath)
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{
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*_pPath = std::string(drive) + std::string(dir);
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}
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if (_pFilename != 0)
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{
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*_pFilename = fname;
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}
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if (_pExtension != 0)
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{
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*_pExtension = ext;
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}
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return true;
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}
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return false;
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}
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#else
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bool SplitPath(const std::string& full_path, std::string* _pPath, std::string* _pFilename, std::string* _pExtension)
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{
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size_t last_slash = full_path.rfind('/');
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if (last_slash == std::string::npos)
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{
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return false; // FIXME return the filename
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}
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size_t last_dot = full_path.rfind('.');
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if ((last_dot == std::string::npos) || (last_dot < last_slash))
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{
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return false; // FIXME why missing . is critical?
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}
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if (_pPath)
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{
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*_pPath = full_path.substr(0, last_slash + 1);
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}
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if (_pFilename)
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{
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*_pFilename = full_path.substr(last_slash + 1, last_dot - (last_slash + 1));
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}
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if (_pExtension)
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{
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*_pExtension = full_path.substr(last_dot + 1);
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_pExtension->insert(0, ".");
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}
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else if (_pFilename)
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{
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*_pFilename += full_path.substr(last_dot);
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}
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return true;
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}
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#endif
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void BuildCompleteFilename(std::string& _CompleteFilename, const std::string& _Path, const std::string& _Filename)
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{
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_CompleteFilename = _Path;
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// check for seperator
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if (_CompleteFilename[_CompleteFilename.size() - 1] != DIR_SEP_CHR)
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{
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#ifdef _WIN32
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if (_CompleteFilename[_CompleteFilename.size() - 1] != '\\')
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#endif
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_CompleteFilename += DIR_SEP_CHR;
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}
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// add the filename
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_CompleteFilename += _Filename;
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}
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void SplitString(const std::string& str, const std::string& delim, std::vector<std::string>& output)
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{
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output.clear();
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size_t offset = 0;
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size_t delimIndex = 0;
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delimIndex = str.find(delim, offset);
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while (delimIndex != std::string::npos)
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{
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output.push_back(str.substr(offset, delimIndex - offset));
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offset += delimIndex - offset + delim.length();
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delimIndex = str.find(delim, offset);
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}
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output.push_back(str.substr(offset));
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}
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bool TryParseUInt(const std::string& str, u32* output)
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{
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if (!strcmp(str.substr(0, 2).c_str(), "0x") || !strcmp(str.substr(0, 2).c_str(), "0X"))
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return sscanf(str.c_str() + 2, "%x", output) > 0;
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else
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return sscanf(str.c_str(), "%d", output) > 0;
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}
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int ChooseStringFrom(const char* str, const char* * items)
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{
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int i = 0;
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while (items[i] != 0)
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{
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if (!strcmp(str, items[i]))
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return i;
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i++;
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}
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return -1;
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}
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// Thousand separator. Turns 12345678 into 12,345,678
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std::string ThS(int Integer, bool Unsigned, int Spaces)
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{
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// Create storage space
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char cbuf[20];
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// Determine treatment of signed or unsigned
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if(Unsigned) sprintf(cbuf, "%u", Integer); else sprintf(cbuf, "%i", Integer);
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std::string Sbuf = cbuf;
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for (u32 i = 0; i < Sbuf.length(); ++i)
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{
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if((i & 3) == 3)
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{
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Sbuf.insert(Sbuf.length() - i, ",");
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}
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}
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// Spaces
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std::string Spc = "";
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for (int i = 0; i < (int)(Spaces - Sbuf.length()); i++) Spc += " ";
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return Spc + Sbuf;
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}
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void NormalizeDirSep(std::string* str)
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{
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#ifdef _WIN32
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int i;
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while ((i = (int)str->find_first_of('\\')) >= 0)
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{
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str->replace(i, 1, DIR_SEP);
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}
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#endif
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}
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std::string TabsToSpaces(int tab_size, const std::string &in)
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{
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std::string out;
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int len = 0;
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// First, compute the size of the new string.
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for (unsigned i = 0; i < in.size(); i++)
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{
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if (in[i] == '\t')
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len += tab_size;
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else
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len += 1;
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}
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out.resize(len);
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int out_ctr = 0;
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for (unsigned i = 0; i < in.size(); i++)
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{
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if (in[i] == '\t')
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{
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for (int j = 0; j < tab_size; j++)
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out[out_ctr++] = ' ';
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}
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else
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{
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out[out_ctr++] = in[i];
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}
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}
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return out;
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}
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std::string PathToFilename(std::string Path)
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{
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std::string Name, Ending;
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SplitPath(Path, 0, &Name, &Ending);
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return Name + Ending;
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}
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