diff options
Diffstat (limited to 'lib/args.c')
| -rw-r--r-- | lib/args.c | 24 |
1 files changed, 14 insertions, 10 deletions
@@ -18,6 +18,7 @@ // @ plus an occurrence counter (which is a long) // (longopt) // | this is required. If more than one marked, only one required. +// ^ Stop parsing after encountering this argument // // These modify other option letters (previously seen in string): // +X enabling this enables X (switch on) @@ -70,9 +71,10 @@ // Linked list of all known options (get_opt string is parsed into this). struct opts { struct opts *next; + long *arg; // Pointer into union "this" to store arguments at. uint32_t edx[3]; // Flag mask to enable/disable/exclude. - long *arg; // Pointer into union this to store arguments at. int c; // Short argument character + int flags; // |=1, ^=2 char type; // Type of arguments to store }; @@ -82,7 +84,7 @@ struct getoptflagstate int argc; char *arg; struct opts *opts, *this; - int noerror, nodash_now; + int noerror, nodash_now, stopearly; uint32_t excludes; }; @@ -101,6 +103,7 @@ static int gotflag(struct getoptflagstate *gof) toys.optflags |= opt->edx[0]; toys.optflags &= ~opt->edx[1]; gof->excludes = opt->edx[2]; + if (opt->flags&2) gof->stopearly=2; // Does this option take an argument? gof->arg++; @@ -142,7 +145,7 @@ static int gotflag(struct getoptflagstate *gof) static char *plustildenot = "+~!"; void get_optflags(void) { - int stopearly = 0, nodash = 0, minargs = 0, maxargs; + int nodash = 0, minargs = 0, maxargs; struct longopts { struct longopts *next; struct opts *opt; @@ -167,7 +170,7 @@ void get_optflags(void) // Parse leading special behavior indicators for (;;) { - if (*options == '^') stopearly++; + if (*options == '^') gof.stopearly++; else if (*options == '<') minargs=*(++options)-'0'; else if (*options == '>') maxargs=*(++options)-'0'; else if (*options == '?') gof.noerror++; @@ -176,7 +179,7 @@ void get_optflags(void) options++; } - if (!*options) stopearly++; + if (!*options) gof.stopearly++; // Parse rest of opts into array while (*options) { char *temp; @@ -230,13 +233,14 @@ void get_optflags(void) gof.this->edx[idx] |= 1<<i; } else if (*options == '[') { - } else if (*options == '|') { + } else if (*options == '|') gof.this->flags |= 1; + else if (*options == '^') gof.this->flags |= 2; // At this point, we've hit the end of the previous option. The // current character is the start of a new option. If we've already // assigned an option to this struct, loop to allocate a new one. // (It'll get back here afterwards and fall through to next else.) - } else if(gof.this->c) { + else if(gof.this->c) { gof.this = NULL; continue; @@ -268,7 +272,7 @@ void get_optflags(void) gof.this = NULL; // Parse this argument - if (stopearly>1) goto notflag; + if (gof.stopearly>1) goto notflag; gof.nodash_now = 0; @@ -284,7 +288,7 @@ void get_optflags(void) gof.arg++; // Handle -- if (!*gof.arg) { - stopearly += 2; + gof.stopearly += 2; goto notflag; } // Handle --longopt @@ -340,7 +344,7 @@ void get_optflags(void) // Not a flag, save value in toys.optargs[] notflag: - if (stopearly) stopearly++; + if (gof.stopearly) gof.stopearly++; toys.optargs[toys.optc++] = toys.argv[gof.argc]; } |