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[/] [open8_urisc/] [trunk/] [Open8 Tools/] [open8_src/] [open8_link/] [parse.c] - Blame information for rev 250

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Line No. Rev Author Line
1 178 jshamlet 
 
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "defines.h"
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int get_next_token(char *in, char *out, int *pos) {
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  int i, t;
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  /* skip white space */
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  for (i = 0; in[i] == ' ' || in[i] == 0x09; i++);
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  if (in[i] == 0)
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    return FAILED;
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  for (t = 0; in[i] != ' ' && in[i] != 0x09 && in[i] != 0; i++, t++)
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    out[t] = in[i];
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  out[t] = 0;
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  *pos += i;
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  return SUCCEEDED;
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}
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int get_next_number(char *in, int *out, int *pos) {
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  int i, o, n;
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  /* skip white space */
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  for (i = 0; in[i] == ' ' || in[i] == 0x09; i++);
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  if (in[i] == 0)
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    return FAILED;
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  if (in[i] >= '0' && in[i] <= '9') {
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    /* is it hex after all? */
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    n = 0;
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    for (o = 0; 1; o++) {
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      if (in[i+o] >= '0' && in[i+o] <= '9')
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        continue;
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      if (in[i+o] >= 'a' && in[i+o] <= 'f') {
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        n = 1;
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        break;
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      }
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      if (in[i+o] >= 'A' && in[i+o] <= 'F') {
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        n = 1;
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        break;
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      }
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      if (in[i+o] == 'h' || in[i+o] == 'H') {
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        n = 1;
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        break;
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      }
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      break;
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    }
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    if (n == 1) {
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      /* hex */
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      o = 0;
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      while (TRUE) {
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        if (in[i] >= '0' && in[i] <= '9')
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          o = (o * 16) + in[i] - '0';
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        else if (in[i] >= 'a' && in[i] <= 'f')
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          o = (o * 16) + in[i] - 'a' + 0xA;
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        else if (in[i] >= 'A' && in[i] <= 'F')
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          o = (o * 16) + in[i] - 'A' + 0xA;
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        else if (in[i] == 'h' || in[i] == 'H')
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          break;
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        else if (in[i] == ' ' || in[i] == 0x09 || in[i] == 0)
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          break;
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        else
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          return FAILED;
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        i++;
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      }
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    }
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    else {
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      /* decimal */
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      for (o = 0; in[i] >= '0' && in[i] <= '9'; i++)
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        o = (o * 10) + in[i] - '0';
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      if (!(in[i] == ' ' || in[i] == 0x09 || in[i] == 0))
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        return FAILED;
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    }
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  }
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  else if (in[i] == '$') {
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    i++;
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    o = 0;
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    while (TRUE) {
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      if (in[i] >= '0' && in[i] <= '9')
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        o = (o * 16) + in[i] - '0';
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      else if (in[i] >= 'a' && in[i] <= 'f')
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        o = (o * 16) + in[i] - 'a' + 0xA;
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      else if (in[i] >= 'A' && in[i] <= 'F')
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        o = (o * 16) + in[i] - 'A' + 0xA;
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      else if (in[i] == ' ' || in[i] == 0x09 || in[i] == 0)
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        break;
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      else
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        return FAILED;
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      i++;
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    }
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  }
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  else
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    return FAILED;
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  *out = o;
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  *pos += i;
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  return SUCCEEDED;
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}

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