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New module strstack

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git-svn-id: svn://svn.cc65.org/cc65/trunk@2904 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2004-03-07 22:09:06 +00:00
parent 7006e5d1f2
commit 9d439d9dd2
6 changed files with 198 additions and 5 deletions
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6
src/common/intstack.c
View file

@ -63,11 +63,11 @@ void IS_Set (IntStack* S, long Val)
long IS_Pop (IntStack* S)
/* Pop a value from an int stack */
void IS_Drop (IntStack* S)
/* Drop a value from an int stack */
{
CHECK (S->Count > 1);
return S->Stack[--S->Count];
--S->Count;
}

4
src/common/intstack.h
View file

@ -91,8 +91,8 @@ long IS_Get (const IntStack* S);
void IS_Set (IntStack* S, long Val);
/* Set the value on top of an int stack */
long IS_Pop (IntStack* S);
/* Pop a value from an int stack */
void IS_Drop (IntStack* S);
/* Drop a value from an int stack */
void IS_Push (IntStack* S, long Val);
/* Push a value onto an int stack */

1
src/common/make/gcc.mak
View file

@ -34,6 +34,7 @@ OBJS = abend.o \
shift.o \
strbuf.o \
strpool.o \
strstack.o \
strutil.o \
target.o \
tgttrans.o \

1
src/common/make/watcom.mak
View file

@ -79,6 +79,7 @@ OBJS = abend.obj \
shift.obj \
strbuf.obj \
strpool.obj \
strstack.obj \
strutil.obj \
target.obj \
tgttrans.obj \

85
src/common/strstack.c Normal file
View file

@ -0,0 +1,85 @@
/*****************************************************************************/
/* */
/* strstack.c */
/* */
/* String stack used for program settings */
/* */
/* */
/* */
/* (C) 2004 Ullrich von Bassewitz */
/* Römerstraße 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
/* common */
#include "check.h"
#include "strstack.h"
#include "xmalloc.h"
/*****************************************************************************/
/* Code */
/*****************************************************************************/
const char* SS_Get (const StrStack* S)
/* Get the value on top of a string stack */
{
CHECK (S->Count > 0);
return S->Stack[S->Count-1];
}
void SS_Set (StrStack* S, const char* Val)
/* Set the value on top of a string stack */
{
CHECK (S->Count > 0);
xfree (S->Stack[S->Count-1]);
S->Stack[S->Count-1] = xstrdup (Val);
}
void SS_Drop (StrStack* S)
/* Drop a value from a string stack */
{
CHECK (S->Count > 1);
xfree (S->Stack[--S->Count]);
}
void SS_Push (StrStack* S, const char* Val)
/* Push a value onto a string stack */
{
CHECK (S->Count < sizeof (S->Stack) / sizeof (S->Stack[0]));
S->Stack[S->Count++] = xstrdup (Val);
}

106
src/common/strstack.h Normal file
View file

@ -0,0 +1,106 @@
/*****************************************************************************/
/* */
/* strstack.h */
/* */
/* String stack used for program settings */
/* */
/* */
/* */
/* (C) 2004 Ullrich von Bassewitz */
/* Römerstraße 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef STRSTACK_H
#define STRSTACK_H
#include "inline.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
typedef struct StrStack StrStack;
struct StrStack {
unsigned Count;
char* Stack[8];
};
/* Declare an empty string stack */
#define STRSTACK() { 0 };
/*****************************************************************************/
/* Code */
/*****************************************************************************/
#if defined(HAVE_INLINE)
INLINE int SS_IsFull (const StrStack* S)
/* Return true if there is no space left on the given string stack */
{
return (S->Count >= sizeof (S->Stack) / sizeof (S->Stack[0]));
}
#else
# define SS_IsFull(S) ((S)->Count >= sizeof ((S)->Stack) / sizeof ((S)->Stack[0]))
#endif
#if defined(HAVE_INLINE)
INLINE unsigned SS_GetCount (const StrStack* S)
/* Return the number of elements on the given string stack */
{
return S->Count;
}
#else
# define SS_GetCount(S) (S)->Count
#endif
const char* SS_Get (const StrStack* S);
/* Get the value on top of a string stack */
void SS_Set (StrStack* S, const char* Val);
/* Set the value on top of a string stack */
void SS_Drop (StrStack* S);
/* Drop a value from a string stack */
void SS_Push (StrStack* S, const char* Val);
/* Push a value onto a string stack */
/* End of strstack.h */
#endif