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annotate pads2gpcb/gpcbout.c @ 78:be1fe110b6ab

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pads2gpcb: output offset implemented
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 01 Feb 2016 02:22:37 +0000
parents 3bdb1b5ff3d0
children
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45
3bdb1b5ff3d0 pads2gpcb: gpcb dimension output implemented
Mychaela Falconia <falcon@ivan.Harhan.ORG>
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1 #include <stdio.h>
3bdb1b5ff3d0 pads2gpcb: gpcb dimension output implemented
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <strings.h>
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5
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6 static char *
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7 generate_decimal(dim, nfract, cp)
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8 long dim;
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9 int nfract;
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10 char *cp;
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11 {
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12 int i;
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13
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14 *cp = '\0';
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15 for (i = 0; i < nfract; i++) {
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16 *--cp = '0' + dim % 10;
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17 dim /= 10;
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18 }
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19 *--cp = '.';
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20 do {
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21 *--cp = '0' + dim % 10;
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22 dim /= 10;
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23 } while (dim);
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24 return cp;
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25 }
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26
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27 static void
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28 trim_decimal(str)
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29 char *str;
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30 {
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31 char *point, *cp;
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32
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33 point = index(str, '.');
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34 if (!point) {
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35 fprintf(stderr,
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36 "BUG: gpcbout.c:trim_decimal(): no '.' found\n");
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37 exit(1);
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38 }
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39 cp = index(str, '\0');
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Mychaela Falconia <falcon@ivan.Harhan.ORG>
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40 while (cp > point + 1) {
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41 if (cp[-1] != '0')
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42 break;
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43 cp--;
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44 }
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45 if (cp == point + 1)
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46 cp--;
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47 *cp = '\0';
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48 }
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49
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50 char *
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51 output_gpcb_dimension(dim, buf)
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52 long dim;
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53 char *buf;
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54 {
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55 int negative = 0;
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56 int nfract;
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57 char *unit_suffix, *outptr;
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58
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59 if (dim == 0)
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60 return "0";
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61 if (dim < 0) {
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62 negative = 1;
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63 dim = -dim;
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64 }
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65 if (dim % 254) {
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66 nfract = 6;
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67 unit_suffix = "mm";
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68 } else {
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69 dim /= 254;
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70 nfract = 2;
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71 unit_suffix = "mil";
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72 }
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73 outptr = generate_decimal(dim, nfract, buf + 12);
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74 trim_decimal(outptr);
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75 strcat(outptr, unit_suffix);
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76 if (negative)
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77 *--outptr = '-';
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78 return outptr;
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79 }