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comparison helpgen/cout.c @ 0:13d2b8934445

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Import AnaGram (near-)release tree into Mercurial.
author David A. Holland
date Sat, 22 Dec 2007 17:52:45 -0500
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-1:000000000000 0:13d2b8934445
1 #include <assert.h>
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <string.h>
5
6 #include "topic.h"
7 #include "helpgen.h"
8
9 static void dumpstring(FILE *f, const char *s, int multiline) {
10 int column = 0;
11 unsigned char ch;
12
13 while (*s) {
14 if (column == 0) {
15 if (multiline) fprintf(f, " ");
16 fprintf(f, "\"");
17 }
18 ch = *s++;
19
20 if (ch >= 32 && ch < 127 && ch != '"' && ch != '\\') {
21 fprintf(f, "%c", ch);
22 column++;
23 }
24 else if (ch == '\n') {
25 fprintf(f, "\\n");
26 column += 2;
27 }
28 else {
29 assert(ch != '\r');
30 fprintf(f, "\\%03o", ch);
31 column += 4;
32 }
33
34 if (multiline && column > 72) {
35 fprintf(f, "\"\n");
36 column = 0;
37 }
38 }
39
40 if (column) {
41 fprintf(f, "\"");
42 if (multiline) fprintf(f, "\n");
43 }
44 }
45
46 static void fcout(FILE *f, struct topic **topics, int ntopics) {
47 int i, j, n;
48 unsigned numentries = 0;
49
50 fprintf(f, "/* Automatically generated - do not edit */\n\n");
51
52 fprintf(f, "struct HelpTopic {\n");
53 fprintf(f, " const char *title;\n");
54 fprintf(f, " const char *body;\n");
55 fprintf(f, "};\n\n");
56
57
58 for (i=0; i<ntopics; i++) {
59 struct topic *t = topics[i];
60 const char *title = topic_gettitle(t, 0);
61 const char *body = topic_getbody(t);
62
63 if (!body) body = "";
64
65 fprintf(f, "static const char body_%d[] = \n", i);
66 dumpstring(f, body, 1 /* multiline */);
67 fprintf(f, ";\n");
68
69 fprintf(f, "static const HelpTopic topic_%d = \n { ", i);
70 dumpstring(f, title, 0 /* not multiline */);
71 fprintf(f, ", body_%d };\n\n", i);
72 }
73
74
75 fprintf(f, "static const char *topiclist[] = {\n");
76 for (i=0; i<ntopics; i++) {
77 struct topic *t = topics[i];
78 const char *title = topic_gettitle(t, 0);
79
80 fprintf(f, " ");
81 dumpstring(f, title, 0 /* not multiline */);
82 fprintf(f, ",\n");
83 }
84 fprintf(f, "};\n");
85 fprintf(f, "static const unsigned numtopiclist = %d;\n\n", ntopics);
86
87
88 fprintf(f, "struct helpentry {\n");
89 fprintf(f, " const char *topic;\n");
90 fprintf(f, " const HelpTopic *data;\n");
91 fprintf(f, "};\n\n");
92
93 fprintf(f, "static helpentry helptable[] = {\n");
94 for (i=0; i<ntopics; i++) {
95 struct topic *t = topics[i];
96
97 n = topic_getnumtitles(t);
98 for (j=0; j<n; j++) {
99 fprintf(f, "{ ");
100 dumpstring(f, topic_gettitle(t, j), 0 /* not multiline */);
101 fprintf(f, ", &topic_%d },\n", i);
102 numentries++;
103 }
104 }
105 fprintf(f, "};\n");
106 fprintf(f, "static const unsigned helptablenum = %u;\n\n", numentries);
107 }
108
109 void cout(const char *file, struct topic **topics, int ntopics) {
110 FILE *f;
111
112 f = fopen(file, "w");
113 if (!f) {
114 fprintf(stderr, "%s: fopen failed", file);
115 exit(1);
116 }
117
118 fcout(f, topics, ntopics);
119
120 if (ferror(f)) {
121 fprintf(stderr, "%s: write error", file);
122 exit(1);
123 }
124 if (fclose(f)) {
125 fprintf(stderr, "%s: fclose failed", file);
126 exit(1);
127 }
128 }