| /* |
| * R : A Computer Language for Statistical Data Analysis |
| * Copyright (C) 1998--2007 Guido Masarotto and Brian Ripley |
| * |
| * This program 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 2 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, a copy is available at |
| * https://www.R-project.org/Licenses/ |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <Fileio.h> |
| |
| #ifndef MAX_PATH |
| # include <windows.h> |
| #endif |
| |
| |
| static FILE *ff = NULL; |
| static char optfl[MAX_PATH]; |
| static int optln; |
| |
| void optclosefile(void) |
| { |
| if (!ff) return; |
| fclose(ff); |
| ff = NULL; |
| } |
| |
| |
| int optopenfile(const char *fname) |
| { |
| optclosefile(); |
| if (!fname || !(ff = R_fopen(fname,"r"))) return 0; |
| strcpy(optfl,fname); |
| optln = 0; |
| return 1; |
| } |
| |
| char * |
| optfile(void) |
| { |
| return optfl; |
| } |
| |
| int |
| optline(void) |
| { |
| return optln; |
| } |
| |
| |
| static char *rmspace(char *s) |
| { |
| int i; |
| |
| for (i = strlen(s) - 1; i >= 0 && s[i] == ' '; i--) |
| s[i] = '\0'; |
| for (i = 0; s[i] == ' '; i++); |
| return &s[i]; |
| } |
| |
| |
| int optread(char *opt[], const char sep) |
| { |
| static char sm[120]; |
| char *p, *s; |
| int l; |
| |
| if (!ff) |
| return 0; |
| l = 0; |
| while (l == 0) { |
| if (!fgets(sm, 120, ff)) { |
| fclose(ff); |
| ff = NULL; |
| return 0; |
| } |
| optln += 1; |
| l = strlen(sm); |
| if (sm[l - 1] != '\n') |
| return 1; |
| else |
| sm[l - 1] = '\0'; |
| s = rmspace(sm); |
| l = (*s == '#') ? 0 : strlen(s); |
| } |
| for (p = s; *p; p++) |
| if (*p == '#') { |
| *p = '\0'; |
| s = rmspace(s); |
| l = strlen(s); |
| break; |
| } |
| for (p = s; *p; p++) |
| if (*p == sep) |
| break; |
| if (!*p) |
| return 1; |
| *p = '\0'; |
| opt[0] = rmspace(s); |
| opt[1] = rmspace(p + 1); |
| if (strlen(opt[0]) && strlen(opt[1])) |
| return 2; |
| else if (strlen(opt[0])) |
| return 3; |
| else |
| return 1; |
| } |