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103 lines
1.6 KiB
C
103 lines
1.6 KiB
C
/*
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* chr.h - Part characteristics
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*
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* Copyright 2012 by Werner Almesberger
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*
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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; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include "util.h"
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#include "param.h"
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#include "chr.h"
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struct condition {
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struct value value;
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enum relop relop;
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struct condition *next;
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};
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struct selector {
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struct condition *cond;
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struct selector *next;
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};
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struct field {
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const char *name;
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const struct format *fmt;
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struct field *mark;
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struct selector *sel;
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struct field *next;
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};
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static struct field *fields = NULL, *curr_field = NULL, *mark = NULL;
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const struct format *field_find(const char *name)
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{
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const struct field *f;
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for (f = fields; f; f = f->next)
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if (f->name == name)
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return f->fmt;
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return NULL;
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}
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void field_add(const char *name, const struct format *fmt)
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{
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struct field *field;
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if (field_find(name))
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yyerrorf("duplicate field \"%s\"", name);
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field = alloc_type(struct field);
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field->name = name;
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field->fmt = fmt;
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field->mark = (void *) 1; /* poison */
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field->sel = NULL;
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if (curr_field)
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curr_field->next = field;
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else
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fields = field;
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curr_field = field;
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}
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void field_mark(void)
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{
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if (mark)
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mark->mark = curr_field;
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mark = curr_field;
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}
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void field_release(void)
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{
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curr_field = mark;
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if (curr_field)
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mark = curr_field->mark;
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}
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void field_add_selector(enum relop relop, const char *word)
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{
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}
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void field_more_selectors(void)
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{
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if (curr_field->fmt->ops != ¶m_ops_set)
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;//yyerrorf("
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}
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void field_add_wildcard(void)
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{
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}
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