mirror of
git://projects.qi-hardware.com/eda-tools.git
synced 2024-11-30 09:34:39 +02:00
359 lines
7.8 KiB
C
359 lines
7.8 KiB
C
/*
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* kicad/lib.c - Parse Eeschema .lib file
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 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 <stdio.h>
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#include <assert.h>
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#include "misc/util.h"
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#include "misc/diag.h"
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#include "gfx/text.h"
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#include "file/file.h"
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#include "kicad/lib.h"
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/* ----- Text -------------------------------------------------------------- */
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static enum text_style decode_style(const char *s)
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{
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if (!strcmp(s, "Normal"))
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return text_normal;
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if (!strcmp(s, "Italic"))
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return text_italic;
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assert(0);
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}
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/* ----- Polygons ---------------------------------------------------------- */
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static bool parse_poly(struct lib_poly *poly, const char *line, int points)
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{
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int i, n;
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poly->points = points;
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poly->x = alloc_type_n(int, points);
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poly->y = alloc_type_n(int, points);
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for (i = 0; i != points; i++) {
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if (sscanf(line, "%d %d %n",
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poly->x + i, poly->y + i, &n) != 2)
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return 0;
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line += n;
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}
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if (sscanf(line, "%c", &poly->fill) != 1)
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return 0;
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return 1;
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}
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/* ----- Definitions ------------------------------------------------------- */
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static bool parse_def(struct lib *lib, const char *line)
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{
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char *s, *ref;
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char draw_num, draw_name;
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unsigned name_offset;
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unsigned units;
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bool power;
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if (sscanf(line, "DEF %ms %ms %*d %u %c %c %u",
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&s, &ref, &name_offset, &draw_num, &draw_name, &units) != 6)
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return 0;
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power = *ref == '#';
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free(ref);
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lib->curr_comp = alloc_type(struct comp);
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if (*s == '~') {
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char *tmp = alloc_size(strlen(s) + 1);
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/* we can't just s++, since that would break freeing */
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strcpy(tmp, s + 1);
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free(s);
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s = tmp;
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}
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lib->curr_comp->name = s;
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lib->curr_comp->aliases = NULL;
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lib->curr_comp->units = units;
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lib->curr_comp->visible = 0;
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lib->curr_comp->show_pin_name = draw_name == 'Y' && !power;
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lib->curr_comp->show_pin_num = draw_num == 'Y' && !power;
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lib->curr_comp->name_offset = name_offset;
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lib->curr_comp->objs = NULL;
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lib->next_obj = &lib->curr_comp->objs;
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lib->curr_comp->next = NULL;
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*lib->next_comp = lib->curr_comp;
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lib->next_comp = &lib->curr_comp->next;
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return 1;
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}
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/* ----- Arcs -------------------------------------------------------------- */
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static bool parse_arc(struct lib_obj *obj, const char *line)
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{
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struct lib_arc *arc = &obj->u.arc;
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int a1, a2;
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if (sscanf(line, "A %d %d %d %d %d %u %u %u %c",
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&arc->x, &arc->y, &arc->r, &a1, &a2, &obj->unit, &obj->convert,
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&arc->thick, &arc->fill) != 9)
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return 0;
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/*
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* KiCad arcs can be clockwise or counter-clockwise. They must always
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* be smaller than 180 degrees.
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*/
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while (a1 < 0)
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a1 += 3600;
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while (a2 < 0)
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a2 += 3600;
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a1 %= 3600;
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a2 %= 3600;
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if (a2 < a1)
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a2 += 3600;
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assert(a2 - a1 != 1800);
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if (a2 - a1 > 1800)
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swap(a1, a2);
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arc->start_a = (a1 % 3600) / 10;
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arc->end_a = (a2 % 3600) / 10;
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return 1;
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}
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/* ----- Aliases ----------------------------------------------------------- */
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static void add_alias(struct comp *comp, const char *alias)
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{
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struct comp_alias *new;
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new = alloc_type(struct comp_alias);
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new->name = alias;
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new->next = comp->aliases;
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comp->aliases = new;
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}
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/* ----- Library parser ---------------------------------------------------- */
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static bool lib_parse_line(const struct file *file,
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void *user, const char *line)
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{
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struct lib *lib = user;
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int n = 0;
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unsigned points;
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struct lib_obj *obj;
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char *s, *style;
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unsigned zero1, zero2;
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char vis;
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switch (lib->state) {
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case lib_skip:
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if (parse_def(lib, line)) {
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lib->state = lib_def;
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return 1;
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}
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return 1;
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case lib_def:
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if (sscanf(line, "DRAW%n", &n) == 0 && n) {
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lib->state = lib_draw;
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return 1;
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}
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if (sscanf(line, "F%d \"\" %*d %*d %*d %*c %c", &n, &vis) == 2
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|| sscanf(line, "F%d \"%*[^\"]\" %*d %*d %*d %*c %c",
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&n, &vis) == 2) {
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if (vis == 'V')
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lib->curr_comp->visible |= 1 << n;
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return 1;
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}
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if (sscanf(line, "ALIAS %ms", &s) == 1) {
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add_alias(lib->curr_comp, s);
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return 1;
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}
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/* @@@ explicitly ignore FPLIST */
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return 1;
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case lib_draw:
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if (sscanf(line, "ENDDRAW%n", &n) == 0 && n) {
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lib->state = lib_skip;
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return 1;
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}
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obj = alloc_type(struct lib_obj);
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obj->next = NULL;
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*lib->next_obj = obj;
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lib->next_obj = &obj->next;
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if (sscanf(line, "P %u %u %u %u %n",
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&points, &obj->unit, &obj->convert, &obj->u.poly.thick,
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&n) == 4) {
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obj->type = lib_obj_poly;
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if (parse_poly(&obj->u.poly, line + n, points))
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return 1;
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break;
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}
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if (sscanf(line, "S %d %d %d %d %u %u %d %c",
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&obj->u.rect.sx, &obj->u.rect.sy, &obj->u.rect.ex,
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&obj->u.rect.ey, &obj->unit, &obj->convert,
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&obj->u.rect.thick, &obj->u.rect.fill) == 8) {
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obj->type = lib_obj_rect;
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return 1;
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}
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if (sscanf(line, "C %d %d %d %u %u %d %c",
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&obj->u.circ.x, &obj->u.circ.y, &obj->u.circ.r,
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&obj->unit, &obj->convert, &obj->u.circ.thick,
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&obj->u.circ.fill) == 7) {
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obj->type = lib_obj_circ;
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return 1;
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}
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if (parse_arc(obj, line)) {
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obj->type = lib_obj_arc;
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return 1;
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}
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n = sscanf(line,
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"T %d %d %d %d %u %u %u \"%m[^\"]\" %ms %u %c %c",
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&obj->u.text.orient, &obj->u.text.x, &obj->u.text.y,
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&obj->u.text.dim, &zero1, &obj->unit, &obj->convert,
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&obj->u.text.s, &style, &zero2,
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&obj->u.text.hor_align, &obj->u.text.vert_align);
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if (n != 12) {
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n = sscanf(line,
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"T %d %d %d %d %u %u %u %ms %ms %u %c %c",
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&obj->u.text.orient, &obj->u.text.x, &obj->u.text.y,
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&obj->u.text.dim, &zero1, &obj->unit, &obj->convert,
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&obj->u.text.s, &style, &zero2,
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&obj->u.text.hor_align, &obj->u.text.vert_align);
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while (n == 12) {
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char *tilde;
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tilde = strchr(obj->u.text.s, '~');
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if (!tilde)
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break;
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*tilde = ' ';
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}
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}
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/*
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* zero2 seems to be the font style: 0 = normal, 1 = bold ?
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*/
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if (n == 12) {
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if (zero1)
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fatal("%u: only understand 0 x x\n"
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"\"%s\"\n", file->lineno, line);
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obj->u.text.style = decode_style(style);
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obj->type = lib_obj_text;
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return 1;
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}
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if (sscanf(line, "X %ms %ms %d %d %d %c %d %d %u %u %c",
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&obj->u.pin.name, &obj->u.pin.number,
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&obj->u.pin.x, &obj->u.pin.y, &obj->u.pin.length,
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&obj->u.pin.orient,
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&obj->u.pin.number_size, &obj->u.pin.name_size,
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&obj->unit, &obj->convert, &obj->u.pin.etype) == 11) {
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obj->type = lib_obj_pin;
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return 1;
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}
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break;
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default:
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abort();
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}
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fatal("%u: cannot parse\n\"%s\"\n", file->lineno, line);
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}
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bool lib_parse_file(struct lib *lib, struct file *file)
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{
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lib->state = lib_skip;
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return file_read(file, lib_parse_line, lib);
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}
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bool lib_parse(struct lib *lib, const char *name, const struct file *related)
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{
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struct file file;
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bool res;
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if (!file_open(&file, name, related))
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return 0;
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res = lib_parse_file(lib, &file);
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file_close(&file);
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return res;
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}
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void lib_init(struct lib *lib)
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{
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lib->comps = NULL;
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lib->next_comp = &lib->comps;
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}
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static void free_objs(struct lib_obj *objs)
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{
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struct lib_obj *next;
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while (objs) {
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next = objs->next;
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switch (objs->type) {
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case lib_obj_text:
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free((char *) objs->u.text.s);
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break;
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case lib_obj_pin:
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free((char *) objs->u.pin.name);
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free((char *) objs->u.pin.number);
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break;
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default:
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break;
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}
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free(objs);
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objs = next;
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}
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}
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static void free_comp(struct comp *comp)
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{
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struct comp_alias *next;
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free((char *) comp->name);
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while (comp->aliases) {
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next = comp->aliases->next;
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free((char *) comp->aliases->name);
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comp->aliases = next;
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}
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free_objs(comp->objs);
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free(comp);
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}
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void lib_free(struct lib *lib)
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{
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struct comp *comp, *next;
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for (comp = lib->comps; comp; comp = next) {
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next = comp->next;
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free_comp(comp);
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}
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}
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