1 /* GNUPLOT - doc2hlp.c */
2
3 /*[
4 * Copyright 1986 - 1993, 1998, 2004 Thomas Williams, Colin Kelley
5 *
6 * Permission to use, copy, and distribute this software and its
7 * documentation for any purpose with or without fee is hereby granted,
8 * provided that the above copyright notice appear in all copies and
9 * that both that copyright notice and this permission notice appear
10 * in supporting documentation.
11 *
12 * Permission to modify the software is granted, but not the right to
13 * distribute the complete modified source code. Modifications are to
14 * be distributed as patches to the released version. Permission to
15 * distribute binaries produced by compiling modified sources is granted,
16 * provided you
17 * 1. distribute the corresponding source modifications from the
18 * released version in the form of a patch file along with the binaries,
19 * 2. add special version identification to distinguish your version
20 * in addition to the base release version number,
21 * 3. provide your name and address as the primary contact for the
22 * support of your modified version, and
23 * 4. retain our contact information in regard to use of the base
24 * software.
25 * Permission to distribute the released version of the source code along
26 * with corresponding source modifications in the form of a patch file is
27 * granted with same provisions 2 through 4 for binary distributions.
28 *
29 * This software is provided "as is" without express or implied warranty
30 * to the extent permitted by applicable law.
31 ]*/
32
33 /*
34 * doc2hlp.c -- program to convert Gnuplot .DOC format to
35 * VMS help (.HLP) format.
36 *
37 * This involves stripping all lines with a leading ?,
38 * @, #, or %.
39 * Modified by Russell Lang from hlp2ms.c by Thomas Williams
40 *
41 * usage: doc2hlp [file.doc [file.hlp]]
42 *
43 * Original version by David Kotz used the following one line script!
44 * sed '/^[?@#%]/d' file.doc > file.hlp
45 */
46
47 #ifdef HAVE_CONFIG_H
48 # include "config.h"
49 #endif
50
51 #include "syscfg.h"
52 #include "stdfn.h"
53 #include "doc2x.h"
54
55 extern TBOOLEAN single_top_level;
56
57 void convert(FILE *, FILE *);
58 void process_line(char *, FILE *);
59
60 int
main(int argc,char ** argv)61 main (int argc, char **argv)
62 {
63 FILE *infile;
64 FILE *outfile;
65
66 infile = stdin;
67 outfile = stdout;
68
69 single_top_level = TRUE;
70
71 if (argc > 3) {
72 fprintf(stderr, "Usage: %s [infile [outfile]]\n", argv[0]);
73 exit(EXIT_FAILURE);
74 }
75 if (argc >= 2) {
76 if ((infile = fopen(argv[1], "r")) == (FILE *) NULL) {
77 fprintf(stderr, "%s: Can't open %s for reading\n",
78 argv[0], argv[1]);
79 exit(EXIT_FAILURE);
80 }
81 }
82 if (argc == 3) {
83 if ((outfile = fopen(argv[2], "w")) == (FILE *) NULL) {
84 fprintf(stderr, "%s: Can't open %s for writing\n",
85 argv[0], argv[2]);
86 exit(EXIT_FAILURE);
87 }
88 }
89
90 convert(infile, outfile);
91
92 return EXIT_SUCCESS;
93 }
94
95
96 void
convert(FILE * inf,FILE * outf)97 convert (FILE *inf, FILE *outf)
98 {
99 static char line[MAX_LINE_LEN+1];
100
101 while (get_line(line, sizeof(line), inf))
102 process_line(line, outf);
103 }
104
105
106 void
process_line(char * line,FILE * b)107 process_line (char *line, FILE *b)
108 {
109 static int line_count = 0;
110
111 line_count++;
112
113 switch (line[0]) { /* control character */
114 case '?':{ /* interactive help entry */
115 break; /* ignore */
116 }
117 case '@':{ /* start/end table */
118 break; /* ignore */
119 }
120 case '=': /* latex index entry */
121 case 'F': /* latex embedded figure */
122 case '#':{ /* latex table entry */
123 break; /* ignore */
124 }
125 case '%':{ /* troff table entry */
126 break; /* ignore */
127 }
128 case '^':{ /* html entry */
129 break; /* ignore */
130 }
131 case '\n': /* empty text line */
132 case ' ':{ /* normal text line */
133 (void) fputs(line, b);
134 break;
135 }
136 default:{
137 if (isdigit((int)line[0])) { /* start of section */
138 (void) fputs(line, b);
139 } else
140 fprintf(stderr, "unknown control code '%c' in column 1, line %d\n",
141 line[0], line_count);
142 break;
143 }
144 }
145 }
146