FreeCalypso > hg > freecalypso-tools
annotate ringtools/imy/firstpass.c @ 967:6bf473f77fc4
fcup-smsend: support backslash escapes in UCS-2 mode too
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 01 Sep 2023 16:43:35 +0000 |
parents | 0d6814238109 |
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rev | line source |
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882
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1 /* |
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2 * This module implements the first pass of fc-imy2pwt processing: |
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3 * reading and parsing the iMelody input file at the level of lines, |
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4 * storing the melody for subsequent processing and catching the |
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5 * optional BEAT: line, if present. |
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6 */ |
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7 |
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8 #include <ctype.h> |
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9 #include <stdio.h> |
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10 #include <stdlib.h> |
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11 #include <string.h> |
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12 #include <strings.h> |
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13 #include "sizelimits.h" |
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14 |
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15 extern char *imy_filename; |
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16 extern char melody_str_buf[MELODY_BUF_SIZE]; |
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17 extern unsigned beats_per_min; |
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18 |
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19 static char *melody_write_ptr, *melody_write_endp; |
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20 static int lineno; |
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21 |
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22 static void |
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23 copy_melody_str(line) |
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24 char *line; |
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25 { |
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26 char *cp, *np; |
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27 |
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28 cp = line; |
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29 while (isspace(*cp)) |
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30 cp++; |
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31 if (!*cp) { |
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32 fprintf(stderr, "%s line %d: empty melody line\n", |
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33 imy_filename, lineno); |
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34 exit(1); |
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35 } |
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36 for (np = cp; *cp && !isspace(*cp); cp++) |
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37 ; |
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38 if (*cp) |
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39 *cp++ = '\0'; |
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40 while (isspace(*cp)) |
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41 cp++; |
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42 if (*cp) { |
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43 fprintf(stderr, "%s line %d: single melody string expected\n", |
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44 imy_filename, lineno); |
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45 exit(1); |
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46 } |
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47 if (strlen(np) > (melody_write_endp - melody_write_ptr)) { |
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48 fprintf(stderr, "%s line %d: melody buffer size exceeded\n", |
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49 imy_filename, lineno); |
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50 exit(1); |
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51 } |
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52 strcpy(melody_write_ptr, np); |
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53 melody_write_ptr += strlen(np); |
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54 } |
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55 |
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56 static void |
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57 process_beat_line(line) |
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58 char *line; |
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59 { |
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60 if (!isdigit(*line)) { |
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61 fprintf(stderr, "%s line %d: number expected on BEAT: line\n", |
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62 imy_filename, lineno); |
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63 exit(1); |
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64 } |
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65 beats_per_min = atoi(line); |
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66 if (beats_per_min < 25 || beats_per_min > 900) { |
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67 fprintf(stderr, "%s line %d: bpm number is out of range\n", |
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68 imy_filename, lineno); |
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69 exit(1); |
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70 } |
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71 } |
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72 |
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73 read_imy_firstpass() |
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74 { |
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75 FILE *inf; |
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76 char linebuf[LINE_BUF_SIZE]; |
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77 int prev_line_is_melody; |
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78 |
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79 inf = fopen(imy_filename, "r"); |
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80 if (!inf) { |
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81 perror(imy_filename); |
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82 exit(1); |
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83 } |
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84 melody_write_ptr = melody_str_buf; |
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85 melody_write_endp = melody_str_buf + MELODY_BUF_SIZE - 1; |
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86 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) { |
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87 if (!index(linebuf, '\n')) { |
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88 fprintf(stderr, |
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89 "%s line %d: too long or unterminated\n", |
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90 imy_filename, lineno); |
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91 exit(1); |
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92 } |
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93 if (linebuf[0] == ' ' || linebuf[0] == '\t') { |
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94 if (lineno == 1) { |
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95 fprintf(stderr, |
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96 "%s line 1: invalid continuation\n", |
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97 imy_filename); |
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98 exit(1); |
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99 } |
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100 if (prev_line_is_melody) |
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101 copy_melody_str(linebuf); |
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102 continue; |
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103 } |
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104 if (!strncasecmp(linebuf, "MELODY:", 7)) { |
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105 copy_melody_str(linebuf + 7); |
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106 prev_line_is_melody = 1; |
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107 } else if (!strncasecmp(linebuf, "BEAT:", 5)) { |
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108 process_beat_line(linebuf + 5); |
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109 prev_line_is_melody = 0; |
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110 } else if (!strncasecmp(linebuf, "END:IMELODY", 11)) |
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111 break; |
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112 else |
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113 prev_line_is_melody = 0; |
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114 } |
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115 fclose(inf); |
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116 if (!melody_str_buf[0]) { |
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117 fprintf(stderr, "error: no melody found in %s\n", imy_filename); |
fd4c9bc7835d
fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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118 exit(1); |
fd4c9bc7835d
fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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119 } |
fd4c9bc7835d
fc-imy2pwt program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
120 } |