Mercurial > hg > index.cgi
view lwar/list.c @ 519:724bcc4508bc
Add SETSTR/INCLUDESTR for some basic code building
It seemed useful to have the ability to build up a variable containing
arbitrary text and then to be able to include that in the assembly process
like an include file. So add, undocumented for now, the following:
SETTSTR varname="string"
INCLUDESTSR "string"
"string" must be enclosed in double quotes and may contain most of the usual
escape sequences (\t, \r, etc.) as well as %(varname) to interpolate a
variable value.
To use it to create assembleable source code, you need to make sure it
creates lines (ended by either \r or \n) with appropriate whitespace in
appropriate places.
author | William Astle <lost@l-w.ca> |
---|---|
date | Sun, 19 Dec 2021 17:01:42 -0700 |
parents | 6f4c4d59666f |
children |
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/* list.c Copyright © 2009 William Astle This file is part of LWAR. LWAR is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. Implements the program startup code */ #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include "lwar.h" void do_list(void) { FILE *f; char buf[8]; long l; int c; f = fopen(archive_file, "rb"); if (!f) { perror("Opening archive file"); exit(1); } (void)(fread(buf, 1, 6, f) && 1); if (memcmp("LWAR1V", buf, 6)) { fprintf(stderr, "%s is not a valid archive file.\n", archive_file); exit(1); } for (;;) { c = fgetc(f); if (ferror(f)) { perror("Reading archive file"); exit(1); } if (c == EOF) return; // find the end of the file name if (!c) return; while (c) { putchar(c); c = fgetc(f); if (c == EOF || ferror(f)) { fprintf(stderr, "Bad archive file\n"); exit(1); } } // get length of archive member l = 0; c = fgetc(f); l = c << 24; c = fgetc(f); l |= c << 16; c = fgetc(f); l |= c << 8; c = fgetc(f); l |= c; printf(": %04lx bytes\n", l); fseek(f, l, SEEK_CUR); } }