1 /*
2 * stub main for testing Ficl
3 * $Id: main.c,v 1.2 2010/09/10 09:01:28 asau Exp $
4 */
5 /*
6 * Copyright (c) 1997-2001 John Sadler (john_sadler@alum.mit.edu)
7 * All rights reserved.
8 *
9 * Get the latest Ficl release at http://ficl.sourceforge.net
10 *
11 * I am interested in hearing from anyone who uses Ficl. If you have
12 * a problem, a success story, a defect, an enhancement request, or
13 * if you would like to contribute to the Ficl release, please
14 * contact me by email at the address above.
15 *
16 * L I C E N S E and D I S C L A I M E R
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 */
39
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <unistd.h>
43 #include <termios.h>
44 #include <sys/errno.h>
45 #include <err.h>
46
47 #include <ficl.h>
48 #include <ficlplatform/emu.h>
49 #include <libtecla.h>
50
51 #define LINELEN 1024
52 #define HISTORY 2048
53
54 static char *
prompt(void)55 prompt(void)
56 {
57 static char prompt[20]; /* probably too large, but well... */
58 char *pr, *p, *cp, *ev;
59 int n = 0;
60
61 if ((cp = getenv("prompt")) == NULL)
62 cp = ">";
63 pr = p = strdup(cp);
64
65 while (*p != 0) {
66 if ((*p == '$') && (*(p+1) == '{')) {
67 for (cp = p + 2; (*cp != 0) && (*cp != '}'); cp++)
68 ;
69 *cp = 0;
70 ev = getenv(p + 2);
71
72 if (ev != NULL)
73 n = sprintf(prompt+n, "%s", ev);
74 p = cp + 1;
75 continue;
76 }
77 prompt[n++] = *p;
78 p++;
79 }
80 if (prompt[n - 1] != ' ')
81 prompt[n++] = ' ';
82 prompt[n] = '\0';
83 free(pr);
84 return (prompt);
85 }
86
87 int
main(int argc,char ** argv)88 main(int argc, char **argv)
89 {
90 int returnValue = 0;
91 char *buffer;
92 GetLine *gl;
93 ficlVm *vm;
94 struct winsize ws;
95 int cols = 80, rows = 24;
96
97 if (ioctl(1, TIOCGWINSZ, &ws) != -1) {
98 if (ws.ws_col)
99 cols = ws.ws_col;
100 if (ws.ws_row)
101 rows = ws.ws_row;
102 }
103
104 (void) clearenv();
105 if (asprintf(&buffer, "%d", cols) < 0)
106 err(EXIT_FAILURE, NULL);
107 (void) setenv("screen-#cols", buffer, 1);
108 free(buffer);
109 if (asprintf(&buffer, "%d", rows) < 0)
110 err(EXIT_FAILURE, NULL);
111 (void) setenv("screen-#rows", buffer, 1);
112 free(buffer);
113
114 if (getenv("prompt") == NULL)
115 (void) setenv("prompt", "${interpret}", 1);
116 if (getenv("interpret") == NULL)
117 (void) setenv("interpret", "ok", 1);
118
119 if ((vm = bf_init("", NULL)) == NULL)
120 err(EXIT_FAILURE, NULL);
121 returnValue = ficlVmEvaluate(vm, ".ver cr quit");
122
123 /*
124 * load files specified on command-line
125 */
126 if (argc > 1) {
127 if (asprintf(&buffer, ".( loading %s ) cr include %s\n cr",
128 argv[1], argv[1]) < 0)
129 err(EXIT_FAILURE, NULL);
130 returnValue = ficlVmEvaluate(vm, buffer);
131 free(buffer);
132 }
133
134 if ((gl = new_GetLine(LINELEN, HISTORY)) == NULL) {
135 bf_fini();
136 err(EXIT_FAILURE, NULL);
137 }
138
139 while (returnValue != FICL_VM_STATUS_USER_EXIT) {
140 if ((buffer = gl_get_line(gl, prompt(), NULL, -1)) == NULL)
141 break;
142 returnValue = bf_run(buffer);
143 }
144
145 gl = del_GetLine(gl);
146 bf_fini();
147 if (returnValue != FICL_VM_STATUS_USER_EXIT)
148 return (EXIT_FAILURE);
149 return (EXIT_SUCCESS);
150 }
151