mirror of
git://projects.qi-hardware.com/fped.git
synced 2024-11-05 07:22:28 +02:00
4a0fd61016
- removed support for old-style measurements - new-style measurements are now embedded in "struct obj", so we can dump and delete them - "measxy" is now called "meas" - updated examples to use new-style measurements git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5412 99fdad57-331a-0410-800a-d7fa5415bdb3
646 lines
9.6 KiB
Plaintext
646 lines
9.6 KiB
Plaintext
%{
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/*
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* fpd.y - FootPrint Definition language
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*
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* Written 2009 by Werner Almesberger
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* Copyright 2009 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 <stdlib.h>
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#include "util.h"
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#include "error.h"
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#include "expr.h"
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#include "obj.h"
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#include "meas.h"
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extern struct expr *expr_result;
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static struct frame *curr_frame;
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static struct table *curr_table;
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static struct row *curr_row;
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static struct frame *last_frame = NULL;
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static struct vec *last_vec = NULL;
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static struct table **next_table;
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static struct loop **next_loop;
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static struct vec **next_vec;
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static struct obj **next_obj;
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static int n_vars, n_values;
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static struct frame *find_frame(const char *name)
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{
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struct frame *f;
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for (f = frames; f; f = f->next)
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if (f->name == name)
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return f;
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return NULL;
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}
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static struct vec *find_vec(const struct frame *frame, const char *name)
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{
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struct vec *v;
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for (v = frame->vecs; v; v = v->next)
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if (v->name == name)
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return v;
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return NULL;
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}
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static void set_frame(struct frame *frame)
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{
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curr_frame = frame;
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next_table = &frame->tables;
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next_loop = &frame->loops;
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next_vec = &frame->vecs;
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next_obj = &frame->objs;
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last_vec = NULL;
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}
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static void make_var(const char *id, struct expr *expr)
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{
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struct table *table;
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table = zalloc_type(struct table);
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table->vars = zalloc_type(struct var);
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table->vars->name = id;
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table->vars->frame = curr_frame;
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table->vars->table = table;
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table->rows = zalloc_type(struct row);
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table->rows->table = table;
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table->rows->values = zalloc_type(struct value);
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table->rows->values->expr = expr;
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table->rows->values->row = table->rows;
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table->active_row = table->rows;
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*next_table = table;
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next_table = &table->next;
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}
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static void make_loop(const char *id, struct expr *from, struct expr *to)
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{
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struct loop *loop;
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loop = alloc_type(struct loop);
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loop->var.name = id;
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loop->var.next = NULL;
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loop->var.frame = curr_frame;
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loop->var.table = NULL;
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loop->from.expr = from;
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loop->from.row = NULL;
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loop->from.next = NULL;
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loop->to.expr = to;
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loop->to.row = NULL;
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loop->to.next = NULL;
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loop->next = NULL;
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loop->active = 0;
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loop->initialized = 0;
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*next_loop = loop;
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next_loop = &loop->next;
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}
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static struct obj *new_obj(enum obj_type type)
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{
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struct obj *obj;
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obj = alloc_type(struct obj);
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obj->type = type;
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obj->frame = curr_frame;
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obj->next = NULL;
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return obj;
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}
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%}
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%union {
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struct num num;
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char *str;
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const char *id;
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struct expr *expr;
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struct frame *frame;
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struct table *table;
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struct var *var;
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struct row *row;
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struct value *value;
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struct vec *vec;
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struct obj *obj;
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enum meas_type mt;
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struct {
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int inverted;
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int max;
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} mo;
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};
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%token START_FPD START_EXPR
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%token TOK_SET TOK_LOOP TOK_PART TOK_FRAME TOK_TABLE TOK_VEC
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%token TOK_PAD TOK_RECT TOK_LINE TOK_CIRC TOK_ARC
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%token TOK_MEAS TOK_MEASX TOK_MEASY
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%token TOK_NEXT TOK_NEXT_INVERTED TOK_MAX TOK_MAX_INVERTED
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%token <num> NUMBER
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%token <str> STRING
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%token <id> ID LABEL
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%type <table> table
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%type <var> vars var
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%type <row> rows
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%type <value> row value
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%type <vec> vec base qbase
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%type <obj> obj meas
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%type <expr> expr opt_expr add_expr mult_expr unary_expr primary_expr
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%type <str> opt_string
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%type <mt> meas_type
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%type <mo> meas_op
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%%
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all:
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START_FPD
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{
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root_frame = zalloc_type(struct frame);
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set_frame(root_frame);
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}
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fpd
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{
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root_frame->prev = last_frame;
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if (last_frame)
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last_frame->next = root_frame;
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else
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frames = root_frame;
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}
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| START_EXPR expr
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{
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expr_result = $2;
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}
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;
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fpd:
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| frame_defs part_name frame_items
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;
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part_name:
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TOK_PART STRING
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{
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const char *p;
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if (!*$2) {
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yyerrorf("invalid part name");
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YYABORT;
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}
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for (p = $2; *p; *p++)
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if (!is_id_char(*p, 0)) {
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yyerrorf("invalid part name");
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YYABORT;
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}
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part_name = $2;
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}
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;
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frame_defs:
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| frame_defs frame_def
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;
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frame_def:
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TOK_FRAME ID '{'
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{
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if (find_frame($2)) {
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yyerrorf("duplicate frame \"%s\"", $2);
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YYABORT;
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}
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curr_frame = zalloc_type(struct frame);
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curr_frame->name = $2;
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set_frame(curr_frame);
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curr_frame->prev = last_frame;
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if (last_frame)
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last_frame->next = curr_frame;
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else
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frames = curr_frame;
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last_frame = curr_frame;
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}
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frame_items '}'
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{
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set_frame(root_frame);
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}
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;
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frame_items:
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measurements
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| frame_item frame_items
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;
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frame_item:
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table
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| TOK_SET ID '=' expr
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{
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make_var($2, $4);
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}
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| TOK_LOOP ID '=' expr ',' expr
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{
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make_loop($2, $4, $6);
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}
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| vec
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| LABEL vec
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{
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if (find_vec(curr_frame, $1)) {
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yyerrorf("duplicate vector \"%s\"", $1);
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YYABORT;
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}
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$2->name = $1;
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}
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| obj
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{
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*next_obj = $1;
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next_obj = &$1->next;
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}
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;
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table:
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TOK_TABLE
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{
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$<table>$ = zalloc_type(struct table);
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*next_table = $<table>$;
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curr_table = $<table>$;
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n_vars = 0;
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}
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'{' vars '}' rows
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{
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$$ = $<table>2;
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$$->vars = $4;
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$$->rows = $6;
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$$->active_row = $6;
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next_table = &$$->next;
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}
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;
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vars:
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var
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{
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$$ = $1;
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}
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| vars ',' var
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{
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struct var **walk;
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$$ = $1;
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for (walk = &$$; *walk; walk = &(*walk)->next);
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*walk = $3;
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}
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;
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var:
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ID
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{
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$$ = zalloc_type(struct var);
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$$->name = $1;
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$$->frame = curr_frame;
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$$->table = curr_table;
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$$->next = NULL;
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n_vars++;
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}
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;
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rows:
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{
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$$ = NULL;
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}
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| '{'
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{
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$<row>$ = alloc_type(struct row);
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$<row>$->table = curr_table;
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curr_row = $<row>$;;
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n_values = 0;
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}
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row '}'
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{
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if (n_vars != n_values) {
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yyerrorf("table has %d variables but row has "
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"%d values", n_vars, n_values);
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YYABORT;
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}
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$<row>2->values = $3;
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}
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rows
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{
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$$ = $<row>2;
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$$->next = $6;
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}
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;
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row:
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value
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{
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$$ = $1;
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}
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| row ',' value
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{
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struct value **walk;
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$$ = $1;
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for (walk = &$$; *walk; walk = &(*walk)->next);
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*walk = $3;
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}
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;
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value:
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expr
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{
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$$ = alloc_type(struct value);
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$$->expr = $1;
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$$->row = curr_row;
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$$->next = NULL;
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n_values++;
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}
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;
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vec:
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TOK_VEC base '(' expr ',' expr ')'
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{
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$$ = alloc_type(struct vec);
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$$->name = NULL;
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$$->base = $2;
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$$->x = $4;
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$$->y = $6;
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$$->frame = curr_frame;
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$$->next = NULL;
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$$->samples = NULL;
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last_vec = $$;
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*next_vec = $$;
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next_vec = &$$->next;
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}
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;
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base:
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'@'
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{
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$$ = NULL;
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}
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| '.'
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{
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$$ = last_vec;
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if (!$$) {
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yyerrorf(". without predecessor");
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YYABORT;
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}
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}
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| ID
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{
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$$ = find_vec(curr_frame, $1);
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if (!$$) {
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yyerrorf("unknown vector \"%s\"", $1);
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YYABORT;
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}
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}
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;
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obj:
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TOK_PAD STRING base base
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{
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$$ = new_obj(ot_pad);
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$$->base = $3;
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$$->u.pad.name = $2;
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$$->u.pad.other = $4;
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}
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| TOK_RECT base base opt_expr
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{
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$$ = new_obj(ot_rect);
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$$->base = $2;
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$$->u.rect.other = $3;
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$$->u.rect.width = $4;
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}
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| TOK_LINE base base opt_expr
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{
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$$ = new_obj(ot_line);
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$$->base = $2;
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$$->u.line.other = $3;
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$$->u.line.width = $4;
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}
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| TOK_CIRC base base opt_expr
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{
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$$ = new_obj(ot_arc);
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$$->base = $2;
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$$->u.arc.start = $3;
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$$->u.arc.end = $3;
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$$->u.arc.width = $4;
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}
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| TOK_ARC base base base opt_expr
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{
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$$ = new_obj(ot_arc);
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$$->base = $2;
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$$->u.arc.start = $3;
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$$->u.arc.end = $4;
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$$->u.arc.width = $5;
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}
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| TOK_FRAME ID
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{
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$<num>$.n = lineno;
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}
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base
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{
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$$ = new_obj(ot_frame);
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$$->base = $4;
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$$->u.frame.ref = find_frame($2);
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if (!$$->u.frame.ref) {
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yyerrorf("unknown frame \"%s\"", $2);
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YYABORT;
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}
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if (!$$->u.frame.ref->active_ref)
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$$->u.frame.ref->active_ref = $$;
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$$->u.frame.lineno = $<num>3.n;
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}
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;
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measurements:
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| measurements meas
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{
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*next_obj = $2;
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next_obj = &$2->next;
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}
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;
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meas:
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meas_type opt_string qbase meas_op qbase opt_expr
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{
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struct meas *meas;
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$$ = new_obj(ot_meas);
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meas = &$$->u.meas;
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meas->type = $4.max ? $1+3 : $1;
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meas->label = $2;
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$$->base = $3;
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meas->inverted = $4.inverted;
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meas->high = $5;
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meas->offset = $6;
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$$->next = NULL;
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}
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;
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qbase:
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ID
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{
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$$ = find_vec(root_frame, $1);
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if (!$$) {
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yyerrorf("unknown vector \"%s\"", $1);
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YYABORT;
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}
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}
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| ID '.' ID
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{
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const struct frame *frame;
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frame = find_frame($1);
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$$ = frame ? find_vec(frame, $3) : NULL;
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if (!$$) {
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yyerrorf("unknown vector \"%s.%s\"", $1, $3);
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YYABORT;
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}
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}
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;
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meas_type:
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TOK_MEAS
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{
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$$ = mt_xy_next;
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}
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| TOK_MEASX
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{
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$$ = mt_x_next;
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}
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| TOK_MEASY
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{
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$$ = mt_y_next;
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}
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;
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meas_op:
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TOK_NEXT
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{
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$$.max = 0;
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$$.inverted = 0;
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}
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| TOK_NEXT_INVERTED
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{
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$$.max = 0;
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$$.inverted = 1;
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}
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| TOK_MAX
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{
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$$.max = 1;
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$$.inverted = 0;
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}
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| TOK_MAX_INVERTED
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{
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$$.max = 1;
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$$.inverted = 1;
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}
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;
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opt_string:
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{
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$$ = NULL;
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}
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| STRING
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{
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$$ = $1;
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}
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;
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opt_expr:
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{
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$$ = NULL;
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}
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| expr
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{
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$$ = $1;
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}
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;
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expr:
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add_expr
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{
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$$ = $1;
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}
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;
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add_expr:
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mult_expr
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{
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$$ = $1;
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}
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| add_expr '+' mult_expr
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{
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$$ = binary_op(op_add, $1, $3);
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}
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| add_expr '-' mult_expr
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{
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$$ = binary_op(op_sub, $1, $3);
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}
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;
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mult_expr:
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unary_expr
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{
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$$ = $1;
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}
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| mult_expr '*' unary_expr
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{
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$$ = binary_op(op_mult, $1, $3);
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}
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| mult_expr '/' unary_expr
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{
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$$ = binary_op(op_div, $1, $3);
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}
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;
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unary_expr:
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primary_expr
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{
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$$ = $1;
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}
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| '-' primary_expr
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{
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$$ = binary_op(op_minus, $2, NULL);
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}
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;
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primary_expr:
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NUMBER
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|
{
|
|
$$ = new_op(op_num);
|
|
$$->u.num = $1;
|
|
}
|
|
| ID
|
|
{
|
|
$$ = new_op(op_var);
|
|
$$->u.var = $1;
|
|
}
|
|
| STRING
|
|
{
|
|
$$ = new_op(op_string);
|
|
$$->u.str = $1;
|
|
}
|
|
| '(' expr ')'
|
|
{
|
|
$$ = $2;
|
|
}
|
|
;
|