diff options
Diffstat (limited to 'lib/args.c')
| -rw-r--r-- | lib/args.c | 87 |
1 files changed, 42 insertions, 45 deletions
@@ -25,7 +25,6 @@ // [yz] needs at least one of y or z. // at the beginning: // + stop at first nonoption argument -// ? return array of remaining arguments in first vararg // <0 at least # leftover arguments needed (default 0) // >9 at most # leftover arguments needed (default MAX_INT) // # don't show_usage() on unknown argument. @@ -70,12 +69,9 @@ struct getoptflagstate static struct getoptflagstate gof; -// Returns zero if it didn't consume the rest of the current -abcdef -static int gotflag(void) +static void gotflag(void) { - char *arg = NULL; int type; - int ret = 0; // Did we recognize this option? if (!gof.this && !gof.noerror) error_exit("Unknown option %s\n", gof.arg); @@ -89,30 +85,28 @@ static int gotflag(void) if (!gof.nodash_now && !*gof.arg) { gof.arg = toys.argv[++gof.argc]; if (!gof.arg) error_exit("Missing argument"); - } else { - arg = gof.arg; - ret++; } } else gof.this = NULL; // If the last option had an argument, grab it. - if (!gof.this) return 0; - type = gof.this->type & 255; - if (!gof.arg && !(gof.arg = toys.argv[++gof.argc])) - error_exit("Missing argument"); - if (type == ':') gof.this->arg = arg; - else if (type == '*') { - struct arg_list *temp, **list; - list = (struct arg_list **)gof.this->arg; - temp = xmalloc(sizeof(struct arg_list)); - temp->arg = arg; - temp->next = *list; - *list = temp; - } else if (type == '?') { - } else if (type == '@') { - } + if (gof.this) { + type = gof.this->type & 255; + if (!gof.arg && !(gof.arg = toys.argv[++gof.argc])) + error_exit("Missing argument"); + if (type == ':') gof.this->arg = gof.arg; + else if (type == '*') { + struct arg_list *temp, **list; + list = (struct arg_list **)gof.this->arg; + temp = xmalloc(sizeof(struct arg_list)); + temp->arg = gof.arg; + temp->next = *list; + *list = temp; + } else if (type == '?') { + } else if (type == '@') { + } - return ret; + gof.arg = ""; + } } // Fill out toys.optflags and toys.optargs. This isn't reentrant because @@ -218,7 +212,8 @@ void get_optflags(void) // Iterate through command line arguments, skipping argv[0] for (gof.argc=1; toys.argv[gof.argc]; gof.argc++) { - char *arg = toys.argv[gof.argc]; + gof.arg = toys.argv[gof.argc]; + gof.this = NULL; // Parse this argument if (stopearly>1) goto notflag; @@ -226,39 +221,39 @@ void get_optflags(void) gof.nodash_now = 0; // Various things with dashes - if (*arg == '-') { + if (*gof.arg == '-') { // Handle - - if (!arg[1]) goto notflag; - arg++; - if (*arg=='-') { + if (!gof.arg[1]) goto notflag; + gof.arg++; + if (*gof.arg=='-') { struct longopts *lo; - arg++; + gof.arg++; // Handle -- - if (!*arg) { + if (!*gof.arg) { stopearly += 2; goto notflag; } // Handle --longopt for (lo = longopts; lo; lo = lo->next) { - if (!strncmp(arg, lo->str, lo->len)) { - if (arg[lo->len]) { - if (arg[lo->len]=='=' + if (!strncmp(gof.arg, lo->str, lo->len)) { + if (gof.arg[lo->len]) { + if (gof.arg[lo->len]=='=' && (lo->opt->type & 255)) { - arg += lo->len; + gof.arg += lo->len; } else continue; - - // *options should be nul, this makes sure - // that the while (*arg) loop terminates; - } arg = options-1; + } + // It's a match. + gof.arg = ""; gof.this = lo->opt; break; } } - // Long option parsed, jump to option handling. + + // Long option parsed, handle option. gotflag(); continue; } @@ -271,12 +266,14 @@ void get_optflags(void) // At this point, we have the args part of -args. Loop through // each entry (could be -abc meaning -a -b -c) - while (*arg) { + while (*gof.arg) { + // Identify next option char. - for (gof.this = gof.opts; gof.this && *arg != gof.this->c; - gof.this = gof.this->next); - if (gotflag()) break; - arg++; + for (gof.this = gof.opts; gof.this; gof.this = gof.this->next) + if (*gof.arg == gof.this->c) break; + + // Handle option char (advancing past what was used) + gotflag(); } continue; |