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Diffstat (limited to 'libtecla-1.4.1/demo.c')
-rw-r--r-- | libtecla-1.4.1/demo.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/libtecla-1.4.1/demo.c b/libtecla-1.4.1/demo.c new file mode 100644 index 0000000..8bee92d --- /dev/null +++ b/libtecla-1.4.1/demo.c @@ -0,0 +1,109 @@ +/* + * Copyright (c) 2000, 2001 by the California Institute of Technology. + * + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, and/or sell copies of the Software, and to permit persons + * to whom the Software is furnished to do so, provided that the above + * copyright notice(s) and this permission notice appear in all copies of + * the Software and that both the above copyright notice(s) and this + * permission notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT + * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR + * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL + * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING + * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder + * shall not be used in advertising or otherwise to promote the sale, use + * or other dealings in this Software without prior written authorization + * of the copyright holder. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <ctype.h> +#include <string.h> +#include <errno.h> +#include <locale.h> + +#include <unistd.h> +#include <sys/stat.h> + +#include "libtecla.h" + +int main(int argc, char *argv[]) +{ + char *line; /* A line of input */ + GetLine *gl; /* The line editor */ + int major,minor,micro; /* The version number of the library */ +/* + * Create the line editor, specifying a max line length of 500 bytes, + * and 10000 bytes to allocate to storage of historical input lines. + */ + gl = new_GetLine(500, 5000); + if(!gl) + return 1; +/* + * If the user has the LC_CTYPE or LC_ALL environment variables set, + * enable display of characters corresponding to the specified locale. + */ + (void) setlocale(LC_CTYPE, ""); +/* + * Lookup and display the version number of the library. + */ + libtecla_version(&major, &minor, µ); + printf("Welcome to the demo program of libtecla version %d.%d.%d\n", + major, minor, micro); +/* + * Load history. + */ + (void) gl_load_history(gl, "~/.demo_history", "#"); +/* + * Read lines of input from the user and print them to stdout. + */ + do { +/* + * Get a new line from the user. + */ + line = gl_get_line(gl, "$ ", NULL, 0); + if(!line) + break; +/* + * Display what was entered. + */ + if(printf("You entered: %s", line) < 0 || fflush(stdout)) + break; +/* + * If the user types "exit", quit the program. + */ + if(strcmp(line, "exit\n")==0) + break; + else if(strcmp(line, "history\n")==0) + gl_show_history(gl, stdout, "%N %T %H\n", 0, -1); + else if(strcmp(line, "size\n")==0) { + GlTerminalSize size = gl_terminal_size(gl, 80, 24); + printf("Terminal size = %d columns x %d lines.\n", size.ncolumn, + size.nline); + }; + } while(1); +/* + * Save historical command lines. + */ + (void) gl_save_history(gl, "~/.demo_history", "#", -1); +/* + * Clean up. + */ + gl = del_GetLine(gl); + return 0; +} + |