cc65/src/cc65/scanstrbuf.h

82 lines
3.9 KiB
C

/*****************************************************************************/
/* */
/* scanstrbuf.h */
/* */
/* Small scanner for input from a StrBuf */
/* */
/* */
/* */
/* (C) 2002-2009, Ullrich von Bassewitz */
/* Roemerstrasse 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 SCANSTRBUF_H
#define SCANSTRBUF_H
/* common */
#include "strbuf.h"
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void SB_SkipWhite (StrBuf* B);
/* Skip whitespace in the string buffer */
int SB_GetSym (StrBuf* B, StrBuf* Ident, const char* SpecialChars);
/* Get a symbol from the string buffer. If SpecialChars is not NULL, it
** points to a string that contains characters allowed within the string in
** addition to letters, digits and the underline. Note: The identifier must
** still begin with a letter.
** Returns 1 if a symbol was found and 0 otherwise but doesn't output any
** errors.
*/
int SB_GetString (StrBuf* B, StrBuf* S);
/* Get a string from the string buffer. Returns 1 if a string was found and 0
** otherwise. Errors are only output in case of invalid strings (missing end
** of string).
*/
int SB_GetNumber (StrBuf* B, long* Val);
/* Get a number from the string buffer. Accepted formats are decimal, octal,
** hex and character constants. Numeric constants may be preceeded by a
** minus or plus sign. The function returns 1 if a number was found and
** zero otherwise. Errors are only output for invalid numbers.
*/
/* End of scanstrbuf.h */
#endif