mirror of
git://projects.qi-hardware.com/eda-tools.git
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1c6116a8d6
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309 lines
6.8 KiB
C
309 lines
6.8 KiB
C
/*
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* fig.c - Generate FIG output for Eeschema items
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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 <stdbool.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include "util.h"
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#include "style.h"
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#include "text.h"
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#include "main.h"
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#include "fig.h"
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/*
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* FIG works with 1/1200 in
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* KiCad works with mil
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* 1 point = 1/72 in
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*/
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static inline int cx(int x)
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{
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return x * 1200 / 1000;
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}
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static inline int cy(int y)
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{
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return y * 1200 / 1000;
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}
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static inline float pt(int x)
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{
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return cx(x) * 72 * 1.5 / 1200.0;
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}
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/* ----- Schematics items -------------------------------------------------- */
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static void fig_line(void *ctx, int sx, int sy, int ex, int ey,
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int color, unsigned layer)
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{
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// TypeStyle FillCol AreaFil Cap FwdAr
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// SubTy Color Pen StyleV Rad BwdAr
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// Thick Depth Join Points
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printf("2 1 2 %d %d 7 %d -1 -1 3.0 1 1 -1 0 0 2\n",
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WIDTH_LINE, color, layer);
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printf("\t%d %d %d %d\n", cx(sx), cy(sy), cx(ex), cy(ey));
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}
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/* ----- General items ----------------------------------------------------- */
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static void fig_rect(void *ctx, int sx, int sy, int ex, int ey,
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int color, int fill_color, unsigned layer)
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{
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// Type Thick Depth StyleV Rad
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// SubTy Color Pen Join FwdAr
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// Style FillCol AreaFil Cap BwdAr
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printf("2 2 0 %d %d %d %d -1 %d 0.0 1 1 -1 0 0 5\n",
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color == -1 ? 0 : WIDTH_COMP_DWG, color, fill_color, layer,
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fill_color == -1 ? -1 : 20);
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printf("\t%d %d %d %d %d %d %d %d %d %d\n",
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cx(sx), cy(sy), cx(ex), cy(sy), cx(ex), cy(ey), cx(sx), cy(ey),
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cx(sx), cy(sy));
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}
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static void fig_poly(void *ctx,
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int points, const int x[points], const int y[points],
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int color, int fill_color, unsigned layer)
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{
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int i;
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char ch = '\t';
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// Type Thick Depth StyleV Rad
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// SubTy Color Pen Join FwdAr
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// Style FillCol AreaFil Cap BwdAr
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printf("2 1 0 %d %d %d %d -1 %d 0.0 1 1 -1 0 0 %d\n",
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color == -1 ? 0 : WIDTH_COMP_DWG, color, fill_color, layer,
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fill_color == -1 ? -1 : 20, points);
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for (i = 0; i != points; i++) {
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printf("%c%d %d", ch, cx(x[i]), cy(y[i]));
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ch = ' ';
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}
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printf("\n");
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}
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static void fig_circ(void *ctx, int x, int y, int r,
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int color, int fill_color, unsigned layer)
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{
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// Type Thick Depth StyleV Cx Rx Sx Ex
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// SubTy Color Pen Dir Cy Ry Sy Ey
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// Style FillCol AreaFil Angle
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printf("1 3 0 %d %d %d %d -1 %d 0.0 1 0.0 %d %d %d %d %d %d %d %d\n",
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color == -1 ? 0 : WIDTH_COMP_DWG, color, fill_color, layer,
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fill_color == -1 ? -1 : 20,
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cx(x), cy(y), r, r,
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cx(x), cy(y), cx(x) + r, cy(y));
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}
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static int ax(int x, int y, int r, int angle)
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{
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float a = angle / 180.0 * M_PI;
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return cx(x + r * cos(a));
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}
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static int ay(int x, int y, int r, int angle)
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{
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float a = angle / 180.0 * M_PI;
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return cy(y - r * sin(a));
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}
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static void fig_arc(void *ctx, int x, int y, int r, int sa, int ea,
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int color, int fill_color, unsigned layer)
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{
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int ma = (sa + ea) / 2;
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// Type Thick Depth StyleV FwdAr
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// SubTy Color Pen Cap BwdAr
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// Style FillCol AreaFil Dir points
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printf("5 1 0 %d %d %d %d -1 %d 0.0 1 1 0 0 %d %d %d %d %d %d %d %d\n",
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color == -1 ? 0 : WIDTH_COMP_DWG, color, fill_color, layer,
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fill_color == -1 ? -1 : 20,
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cx(x), cy(y),
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ax(x, y, r, sa), ay(x, y, r, sa),
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ax(x, y, r, ma), ay(x, y, r, ma),
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ax(x, y, r, ea), ay(x, y, r, ea));
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}
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static void fig_tag(void *ctx, const char *s,
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int points, const int x[points], const int y[points])
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{
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printf("# href=\"%s\" alt=\"\"\n", s);
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fig_poly(ctx, points, x, y, COLOR_NONE, COLOR_NONE, 999);
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}
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static void fig_text(void *ctx, int x, int y, const char *s, unsigned size,
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enum text_align align, int rot, unsigned color, unsigned layer)
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{
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// Type Depth FontSiz Height
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// Just Pen Angle Length
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// Color Font Flags X Y
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printf("4 %u %d %d -1 %d %f %f 4 0.0 0.0 %d %d %s\\001\n",
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align, color, layer, FONT_HELVETICA_BOLD,
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pt(size), rot / 180.0 * M_PI, cx(x), cy(y), s);
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}
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static unsigned fig_text_width(void *ctx, const char *s, unsigned size)
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{
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/*
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* Note that we stretch the text size, so the ratio is larger than
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* expressed here.
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*/
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return strlen(s) * size * 1.0;
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}
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/* ----- FIG file header --------------------------------------------------- */
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static void fig_header(void)
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{
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printf("#FIG 3.2\n");
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printf("Landscape\n");
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printf("Center\n");
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printf("Metric\n");
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printf("A4\n");
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printf("100.00\n");
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printf("Single\n");
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printf("-2\n");
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printf("1200 2\n");
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}
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static void fig_color32(void)
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{
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/* User32, COLOR_DARK_YELLOW */
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printf("0 32 #848400\n");
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}
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static bool apply_vars(char *buf, int n_vars, const char **vars)
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{
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char *p;
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const char **var, *eq;
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int var_len, value_len;
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p = strchr(buf, '<');
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if (!p)
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return 0;
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for (var = vars; var != vars + n_vars; var++) {
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eq = strchr(*var, '=');
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assert(eq);
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var_len = eq - *var;
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if (strncmp(p + 1, *var, var_len))
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continue;
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value_len = strlen(eq + 1);
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memmove(p + value_len, p + var_len + 2,
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strlen(p + var_len + 2) + 1);
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memcpy(p, eq + 1, value_len);
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return 1;
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}
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return 0;
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}
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static void *fig_init(int argc, char *const *argv)
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{
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const char *template = NULL;
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const char **vars = NULL;
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int n_vars = 0;
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char c;
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int arg;
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FILE *file;
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char buf[1000];
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int lines_to_colors = 8;
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while ((c = getopt(argc, argv, "t:")) != EOF)
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switch (c) {
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case 't':
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template = optarg;
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break;
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default:
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usage(*argv);
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}
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for (arg = optind; arg != argc; arg++) {
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if (!strchr(argv[arg], '='))
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usage(*argv);
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n_vars++;
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vars = realloc(vars, sizeof(const char *) * n_vars);
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vars[n_vars - 1] = argv[arg];
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}
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if (!template) {
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fig_header();
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fig_color32();
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return NULL;
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}
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file = fopen(template, "r");
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if (!file) {
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perror(template);
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exit(1);
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}
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while (fgets(buf, sizeof(buf), file)) {
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while (apply_vars(buf, n_vars, vars));
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printf("%s", buf);
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if (*buf == '#')
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continue;
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if (!--lines_to_colors)
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fig_color32();
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/*
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* @@@ known bug: if the template is empty, we won't output
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* color 32.
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*/
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}
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fclose(file);
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return NULL;
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}
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/* ----- Operations -------------------------------------------------------- */
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const struct gfx_ops fig_ops = {
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.name = "fig",
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.line = fig_line,
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.rect = fig_rect,
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.poly = fig_poly,
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.circ = fig_circ,
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.arc = fig_arc,
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.text = fig_text,
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.tag = fig_tag,
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.text_width = fig_text_width,
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.init = fig_init,
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};
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