81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* converter.c
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*
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* $Id$
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*
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* Copyright 1990, 1991, 1992, 1993, 1994, 1995, Oliver Laumann, Berlin
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* Copyright 2002, 2003 Sam Hocevar <sam@hocevar.net>, Paris
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*
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* This software was derived from Elk 1.2, which was Copyright 1987, 1988,
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* 1989, Nixdorf Computer AG and TELES GmbH, Berlin (Elk 1.2 has been written
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* by Oliver Laumann for TELES Telematic Services, Berlin, in a joint project
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* between TELES and Nixdorf Microprocessor Engineering, Berlin).
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*
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* Oliver Laumann, TELES GmbH, Nixdorf Computer AG and Sam Hocevar, as co-
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* owners or individual owners of copyright in this software, grant to any
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* person or company a worldwide, royalty free, license to
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*
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* i) copy this software,
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* ii) prepare derivative works based on this software,
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* iii) distribute copies of this software or derivative works,
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* iv) perform this software, or
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* v) display this software,
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*
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* provided that this notice is not removed and that neither Oliver Laumann
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* nor Teles nor Nixdorf are deemed to have made any representations as to
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* the suitability of this software for any purpose nor are held responsible
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* for any defects of this software.
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*
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* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
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*/
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#include "xt.h"
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#define MAX_CONVERTER 512
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typedef struct {
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char *name;
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int scheme_to_c;
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PFX2S to_scheme;
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PFS2X to_c;
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} CONVERTER;
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static CONVERTER ctab[MAX_CONVERTER], *clast = ctab;
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void Define_Converter_To_Scheme (char *name, PFX2S c) {
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Set_Error_Tag ("c->scheme");
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if (clast == ctab+MAX_CONVERTER)
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Primitive_Error ("too many converters");
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clast->name = name;
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clast->scheme_to_c = 0;
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clast->to_scheme = c;
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clast++;
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}
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void Define_Converter_To_C (char *name, PFS2X c) {
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Set_Error_Tag ("scheme->c");
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if (clast == ctab+MAX_CONVERTER)
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Primitive_Error ("too many converters");
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clast->name = name;
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clast->scheme_to_c = 1;
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clast->to_c = c;
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clast++;
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}
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PFX2S Find_Converter_To_Scheme (char *name) {
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register CONVERTER *p;
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for (p = ctab; p < clast; p++)
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if (!p->scheme_to_c && streq (p->name, name))
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return p->to_scheme;
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return 0;
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}
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PFS2X Find_Converter_To_C (char *name) {
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register CONVERTER *p;
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for (p = ctab; p < clast; p++)
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if (p->scheme_to_c && streq (p->name, name))
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return p->to_c;
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return 0;
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}
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