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annotate dspanal/charparse.c @ 404:ceb71478414d

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tfo: find-is-hdr program written
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Mar 2023 18:16:22 +0000
parents f8344bc4fd61
children
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308
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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2 * This module reads C char array files; it will be linked into programs
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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3 * that do further processing.
f8344bc4fd61 dspanal: char2coff utility written, compiles
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4 */
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5
f8344bc4fd61 dspanal: char2coff utility written, compiles
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6 #include <sys/types.h>
f8344bc4fd61 dspanal: char2coff utility written, compiles
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7 #include <ctype.h>
f8344bc4fd61 dspanal: char2coff utility written, compiles
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8 #include <stdio.h>
f8344bc4fd61 dspanal: char2coff utility written, compiles
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9 #include <stdlib.h>
f8344bc4fd61 dspanal: char2coff utility written, compiles
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10 #include <string.h>
f8344bc4fd61 dspanal: char2coff utility written, compiles
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11 #include <strings.h>
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12
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13 /* lexer tokens */
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14 #define WORD 256
f8344bc4fd61 dspanal: char2coff utility written, compiles
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15 #define NUMBER 257
f8344bc4fd61 dspanal: char2coff utility written, compiles
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16 #define HEXBYTE 258
f8344bc4fd61 dspanal: char2coff utility written, compiles
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17
f8344bc4fd61 dspanal: char2coff utility written, compiles
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18 /* limits */
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19 #define MAXWORD 63
f8344bc4fd61 dspanal: char2coff utility written, compiles
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20 #define MAXDIGITS 5
f8344bc4fd61 dspanal: char2coff utility written, compiles
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21
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22 static char *parser_filename;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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23 static FILE *parser_readF;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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24 static int parser_lineno;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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25 static char parser_read_word[MAXWORD+1];
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26 static int parser_read_number;
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27
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28 static void
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29 parse_error(msg)
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30 char *msg;
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31 {
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32 fprintf(stderr, "%s line %d: %s\n", parser_filename, parser_lineno,
f8344bc4fd61 dspanal: char2coff utility written, compiles
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33 msg);
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34 exit(1);
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35 }
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36
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37 static
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38 my_getchar()
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39 {
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40 register int c;
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41
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42 c = getc(parser_readF);
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43 if (c < 0)
f8344bc4fd61 dspanal: char2coff utility written, compiles
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44 return(c);
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45 if (!isascii(c))
f8344bc4fd61 dspanal: char2coff utility written, compiles
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46 parse_error("non-ASCII character");
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Mychaela Falconia <falcon@freecalypso.org>
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47 if (iscntrl(c) && c != '\n' && c != '\t')
f8344bc4fd61 dspanal: char2coff utility written, compiles
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48 parse_error("invalid control character");
f8344bc4fd61 dspanal: char2coff utility written, compiles
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49 return(c);
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50 }
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51
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52 static void
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53 handle_trad_comment()
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54 {
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55 register int c, flag;
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56
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57 for (flag = 0; ; ) {
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Mychaela Falconia <falcon@freecalypso.org>
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58 c = my_getchar();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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59 if (c < 0)
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Mychaela Falconia <falcon@freecalypso.org>
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60 parse_error("/* comment ends in EOF");
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Mychaela Falconia <falcon@freecalypso.org>
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61 if (c == '\n')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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62 parser_lineno++;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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63 if (c == '/' && flag)
f8344bc4fd61 dspanal: char2coff utility written, compiles
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64 return;
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65 flag = (c == '*');
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66 }
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67 }
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68
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69 static void
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Mychaela Falconia <falcon@freecalypso.org>
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70 handle_line_comment()
f8344bc4fd61 dspanal: char2coff utility written, compiles
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71 {
f8344bc4fd61 dspanal: char2coff utility written, compiles
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72 register int c;
f8344bc4fd61 dspanal: char2coff utility written, compiles
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73
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74 for (;;) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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75 c = my_getchar();
f8344bc4fd61 dspanal: char2coff utility written, compiles
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76 if (c < 0)
f8344bc4fd61 dspanal: char2coff utility written, compiles
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77 parse_error("// comment ends in EOF");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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78 if (c == '\n') {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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79 parser_lineno++;
f8344bc4fd61 dspanal: char2coff utility written, compiles
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80 return;
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Mychaela Falconia <falcon@freecalypso.org>
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81 }
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82 }
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83 }
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84
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85 static void
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Mychaela Falconia <falcon@freecalypso.org>
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86 handle_comment()
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87 {
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88 int c;
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89
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90 c = my_getchar();
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91 switch (c) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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92 case '*':
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93 /* traditional C comment style */
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94 handle_trad_comment();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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95 return;
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Mychaela Falconia <falcon@freecalypso.org>
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96 case '/':
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Mychaela Falconia <falcon@freecalypso.org>
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97 /* new-fangled double slash comment style */
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98 handle_line_comment();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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99 return;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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100 default:
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Mychaela Falconia <falcon@freecalypso.org>
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101 parse_error("character after '/' is not '*' or '/'");
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102 exit(1);
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103 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
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104 }
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105
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106 static void
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Mychaela Falconia <falcon@freecalypso.org>
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107 handle_num_token(first_digit)
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108 {
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109 register int c, n;
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110
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111 parser_read_number = first_digit - '0';
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112 for (n = 1; ; n++) {
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113 c = my_getchar();
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Mychaela Falconia <falcon@freecalypso.org>
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114 if (!isdigit(c))
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115 break;
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Mychaela Falconia <falcon@freecalypso.org>
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116 parser_read_number *= 10;
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Mychaela Falconia <falcon@freecalypso.org>
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117 parser_read_number += c - '0';
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Mychaela Falconia <falcon@freecalypso.org>
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118 }
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Mychaela Falconia <falcon@freecalypso.org>
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119 if (c >= 0) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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120 if (isalpha(c) || c == '_')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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121 parse_error(
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122 "digits followed by letters: neither word nor number");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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123 ungetc(c, parser_readF);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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124 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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125 if (n > MAXDIGITS)
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Mychaela Falconia <falcon@freecalypso.org>
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126 parse_error("number is too long (MAXDIGITS exceeded)");
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Mychaela Falconia <falcon@freecalypso.org>
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127 }
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128
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129 static int
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Mychaela Falconia <falcon@freecalypso.org>
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130 decode_hex_digit(c)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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131 register int c;
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132 {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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133 if (isdigit(c))
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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134 return(c - '0');
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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135 else if (isupper(c))
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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136 return(c - 'A' + 10);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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137 else
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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diff changeset
138 return(c - 'a' + 10);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 static void
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 handle_hex_token()
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 register int c, n;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 c = my_getchar();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 if (c != 'x' && c != 'X')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 parse_error("\'0\' not followed by \'x\'");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 parser_read_number = 0;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 for (n = 0; n < 2; n++) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 c = my_getchar();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 if (!isxdigit(c))
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 parse_error("0x not followed by two hex digits");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 parser_read_number <<= 4;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 parser_read_number += decode_hex_digit(c);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 static void
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 handle_word_token(first_char)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 register int c;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 register char *cp;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 register int len;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 cp = parser_read_word;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 *cp++ = first_char;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 for (len = 1; ; ) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 c = my_getchar();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 if (!isalnum(c) && c != '_')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 break;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 if (len >= MAXWORD)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 parse_error("text token is too long");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 *cp++ = c;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 len++;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 *cp = '\0';
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 if (c < 0)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 return;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 ungetc(c, parser_readF);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 static int
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 get_token()
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 register int c;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 loop: c = my_getchar();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 switch (c) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 case EOF:
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 return(0);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 case ' ':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 case '\t':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 goto loop;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 case '\n':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 parser_lineno++;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 goto loop;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 case '/':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 handle_comment();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 goto loop;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 case ',':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 case ';':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 case '=':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 case '[':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 case ']':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 case '{':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 case '}':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 return(c);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 case '0':
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 handle_hex_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 return(HEXBYTE);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 if (isdigit(c)) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 handle_num_token(c);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 return(NUMBER);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 if (isalpha(c) || c == '_') {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 handle_word_token(c);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 return(WORD);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 fprintf(stderr, "%s line %d: bad character \'%c\'\n", parser_filename,
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 parser_lineno, c);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 exit(1);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 unsigned
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 read_char_file(filename, outbuf, buflimit)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 char *filename;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 u_char *outbuf;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 unsigned buflimit;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 register int t;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 u_char *outptr;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 unsigned bytecnt;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 parser_filename = filename;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 parser_readF = fopen(parser_filename, "r");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 if (!parser_readF) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 perror(parser_filename);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 exit(1);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 parser_lineno = 1;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 if (t != WORD || strcmp(parser_read_word, "const"))
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 parse_error("expected \"const\" keyword");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 if (t != WORD || strcmp(parser_read_word, "unsigned"))
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 parse_error("expected \"unsigned\" keyword");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 if (t != WORD || strcmp(parser_read_word, "char"))
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 parse_error("expected \"char\" keyword");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 if (t != WORD)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 parse_error("expected char array name");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 if (t != '[')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 parse_error("expected \'[\'");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 if (t == NUMBER)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 if (t != ']')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 parse_error("expected \']\'");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 if (t != '=')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 parse_error("expected \'=\'");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 if (t != '{')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 parse_error("expected \'{\'");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 /* get first hex byte */
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 if (t != HEXBYTE)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 parse_error("expected first hex byte");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 outptr = outbuf;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 *outptr++ = parser_read_number;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 bytecnt = 1;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 for (;;) {
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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277 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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278 if (t == '}')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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279 break;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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280 if (t != ',')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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281 parse_error("expected comma between bytes");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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282 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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283 if (t == '}')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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284 break;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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285 if (t != HEXBYTE)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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286 parse_error("expected next hex byte");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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287 if (bytecnt >= buflimit)
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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288 parse_error("buffer limit exceeded");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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289 *outptr++ = parser_read_number;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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290 bytecnt++;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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291 }
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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292 t = get_token();
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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293 if (t != ';')
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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294 parse_error("expected terminating \';\'");
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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295 fclose(parser_readF);
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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296 return bytecnt;
f8344bc4fd61 dspanal: char2coff utility written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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297 }