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109 lines
4.2 KiB
C
109 lines
4.2 KiB
C
/*****************************************************************************/
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/* */
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/* gentype.c */
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/* */
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/* Generic data type encoding */
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/* */
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/* */
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/* */
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/* (C) 2011, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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/* common */
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#include "gentype.h"
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#include "strbuf.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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void GT_AddArray (StrBuf* Type, unsigned ArraySize)
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/* Add an array with the given size to the type string in Type. This will
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* NOT add the element type!
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*/
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{
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unsigned I;
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/* Add the array token */
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SB_AppendChar (Type, GT_TYPE_ARRAY);
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/* Add the size. */
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for (I = 0; I < 4; ++I) {
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SB_AppendChar (Type, ArraySize & 0xFF);
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ArraySize >>= 8;
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}
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}
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unsigned GT_GetArraySize (StrBuf* Type)
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/* Retrieve the size of an array stored in Type at the current index position.
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* The index position will get moved past the array size.
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*/
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{
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unsigned Size;
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Size = (unsigned)SB_Get (Type);
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Size |= (unsigned)SB_Get (Type) << 8;
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Size |= (unsigned)SB_Get (Type) << 16;
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Size |= (unsigned)SB_Get (Type) << 24;
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return Size;
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}
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void GT_AsString (const StrBuf* Type, StrBuf* String)
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/* Convert the type into a readable representation */
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{
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static const char HexTab[16] = "0123456789ABCDEF";
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unsigned I;
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/* Convert Type into readable hex. String will have twice then length
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* plus a terminator.
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*/
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SB_Realloc (String, 2 * SB_GetLen (Type) + 1);
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SB_Clear (String);
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for (I = 0; I < SB_GetLen (Type); ++I) {
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unsigned char C = SB_AtUnchecked (Type, I);
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SB_AppendChar (String, HexTab[(C & 0xF0) >> 4]);
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SB_AppendChar (String, HexTab[(C & 0x0F) >> 0]);
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}
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/* Terminate the string so it can be used with string functions */
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SB_Terminate (String);
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}
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