FreeCalypso > hg > freecalypso-tools

annotate ringtools/imy/convert.c @ 956:b0b6966fa62e

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doc/Target-boot-control: update for -Petmoff
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 07 Jun 2023 23:52:31 +0000
parents 3e398f9c31a0
children
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882
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This module implements the second pass of fc-imy2pwt processing:
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3 * stepping through the captured melody and converting it to PWT.
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4 */
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5
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6 #include <ctype.h>
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7 #include <stdio.h>
fd4c9bc7835d fc-imy2pwt program written, compiles
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8 #include <stdlib.h>
fd4c9bc7835d fc-imy2pwt program written, compiles
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9 #include <string.h>
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10 #include <strings.h>
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11
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12 extern char melody_str_buf[];
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13 extern unsigned tdma_durations[6][4];
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14 extern FILE *outF;
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15
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16 static int cur_octave = 4;
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17
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18 static char *pwt_note_names[12] = {"c", "cs", "d", "ds", "e", "f", "fs",
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19 "g", "gs", "a", "as", "b"};
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20
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21 static void
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22 melody_error(cp, msg)
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23 char *cp, *msg;
882
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24 {
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25 unsigned pos;
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26
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27 pos = cp - melody_str_buf;
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28 fprintf(stderr, "melody error at offset %u: %s\n", pos, msg);
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29 exit(1);
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30 }
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31
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32 static void
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33 process_octave_cmd(cp)
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34 char *cp;
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35 {
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36 if (!isdigit(cp[1]))
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37 melody_error(cp, "'*' octave prefix not followed by digit");
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38 cur_octave = cp[1] - '0';
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39 }
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40
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41 static int
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42 process_note(str, type)
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43 char *str;
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44 {
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45 int note, dur_basic, dur_mod;
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46
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47 switch (*str) {
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48 case 'c':
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49 note = 0;
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50 break;
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51 case 'd':
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52 note = 2;
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53 break;
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54 case 'e':
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55 note = 4;
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56 break;
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57 case 'f':
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58 note = 5;
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59 break;
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60 case 'g':
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61 note = 7;
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62 break;
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63 case 'a':
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64 note = 9;
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65 break;
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66 case 'b':
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67 note = 11;
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68 break;
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69 default:
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70 melody_error(str, "note letter expected after '&' or '#'");
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71 }
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72 switch (type) {
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73 case 1:
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74 if (note == 0 || note == 5)
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75 melody_error(str, "invalid flat note");
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76 note--;
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77 break;
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78 case 2:
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79 if (note == 4 || note == 11)
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80 melody_error(str, "invalid sharp note");
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81 note++;
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82 break;
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83 }
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84 if (str[1] < '0' || str[1] > '5')
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85 melody_error(str, "missing expected note duration digit");
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86 dur_basic = str[1] - '0';
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87 switch (str[2]) {
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88 case '.':
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89 dur_mod = 1;
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90 break;
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91 case ':':
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92 dur_mod = 2;
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93 break;
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94 case ';':
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95 dur_mod = 3;
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96 break;
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97 default:
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98 dur_mod = 0;
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99 break;
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100 }
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101 fprintf(outF, "%s%d\t64\t%u\n", pwt_note_names[note], cur_octave + 1,
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102 tdma_durations[dur_basic][dur_mod]);
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103 if (dur_mod)
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104 return 3;
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105 else
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106 return 2;
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107 }
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108
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109 static int
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110 process_rest(str)
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111 char *str;
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112 {
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113 int dur_basic, dur_mod;
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114
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115 if (str[1] < '0' || str[1] > '5')
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116 melody_error(str, "missing expected rest duration digit");
882
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117 dur_basic = str[1] - '0';
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118 switch (str[2]) {
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119 case '.':
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120 dur_mod = 1;
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121 break;
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122 case ':':
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123 dur_mod = 2;
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124 break;
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125 case ';':
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126 dur_mod = 3;
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127 break;
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128 default:
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129 dur_mod = 0;
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130 break;
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131 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 fprintf(outF, "rest\t\t%u\n", tdma_durations[dur_basic][dur_mod]);
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 if (dur_mod)
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 return 3;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 else
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 return 2;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 melody_convert_pass()
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 char *cp, *repeat_start_ptr;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 int repeat_start_octave, repeat_count, rpt_set;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 repeat_start_ptr = 0;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 for (cp = melody_str_buf; *cp; ) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 /* skip junk first */
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 if (!strncmp(cp, "vibeon", 6)) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 cp += 6;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 if (!strncmp(cp, "vibeoff", 7)) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 cp += 7;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 if (!strncmp(cp, "ledon", 5)) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 cp += 5;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 if (!strncmp(cp, "ledoff", 6)) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 cp += 6;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 if (!strncmp(cp, "backon", 6)) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 cp += 6;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 if (!strncmp(cp, "backoff", 7)) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 cp += 7;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 /* real stuff */
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 switch (*cp) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 case '*':
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
174 process_octave_cmd(cp);
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 cp += 2;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 case 'c':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 case 'd':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 case 'e':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 case 'f':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 case 'g':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 case 'a':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 case 'b':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 cp += process_note(cp, 0);
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 case '&':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 cp += process_note(cp, 1);
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 case '#':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 cp += process_note(cp, 2);
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 case 'r':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 cp += process_rest(cp);
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 case 'V':
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 /* skip unimplemented volume control */
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 if (*cp == '+' || *cp == '-') {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 }
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
204 if (!isdigit(*cp))
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
205 melody_error(cp, "invalid character after 'V'");
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 if (*cp == '1' && cp[1] >= '0' && cp[1] <= '5')
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 cp += 2;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 else
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 case '(':
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
212 if (repeat_start_ptr)
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
213 melody_error(cp, "nested repeat");
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 repeat_start_ptr = cp;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 repeat_start_octave = cur_octave;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 repeat_count = 0;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 case '@':
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
220 if (!repeat_start_ptr)
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
221 melody_error(cp, "'@' not in repeat block");
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 cp++;
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
223 if (!isdigit(*cp))
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
224 melody_error(cp, "'@' not followed by digit");
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 rpt_set = *cp - '0';
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
226 if (!rpt_set)
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
227 melody_error(cp,
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
228 "infinite repeat not supported");
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 if (!repeat_count)
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 repeat_count = rpt_set;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 case ')':
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
234 if (!repeat_start_ptr)
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
235 melody_error(cp, "')' without opening '('");
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
236 if (!repeat_count)
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
237 melody_error(cp, "repeat block without count");
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 repeat_count--;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 if (repeat_count) {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 cp = repeat_start_ptr;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 cur_octave = repeat_start_octave;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 } else {
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 cp++;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 repeat_start_ptr = 0;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 continue;
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 default:
887
3e398f9c31a0 fc-imy2pwt: overhaul melody error handling, report position
Mychaela Falconia <falcon@freecalypso.org>
parents: 882
diff changeset
248 melody_error(cp, "non-understood character");
882
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 }
fd4c9bc7835d fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 }