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/************************************************
glob.c -
$Author$
$Date$
created at: Mon Sep 12 18:56:43 JST 1994
************************************************/
#include "ruby.h"
#include "fnmatch.h"
#include <sys/param.h>
char *strdup();
VALUE C_Glob;
struct glob_data {
char **globs;
};
static ID id_data;
static void
glob_free(data)
struct glob_data *data;
{
char **globs = data->globs;
while (*globs) {
free(*globs);
globs++;
}
free(data->globs);
}
#define isdelim(c) ((c)==' '||(c)=='\t'||(c)=='\n'||(c)=='\0')
char *strchr();
char *strdup();
static int
expand_brace(s, data, len)
char *s;
struct glob_data *data;
int len;
{
char org[MAXPATHLEN], path[MAXPATHLEN];
char *pre, *post, *head, *p, *t;
strcpy(org, s);
pre = strchr(org, '{');
if (pre) post = strchr(pre, '}');
if (!pre || !post) {
data->globs[len++] = strdup(s);
REALLOC_N(data->globs, char*, len+1);
return len;
}
memcpy(path, org, pre - org);
p = org + (pre - org) + 1;
head = path + (pre - org);
while (p < post) {
t = p;
while (t < post) {
if (*t == ',') break;
t++;
}
memcpy(head, p, t-p);
strcpy(head+(t-p), post+1);
len = expand_brace(path, data, len);
p = t + 1;
}
return len;
}
static VALUE
glob_new0(class, str)
VALUE class;
struct RString *str;
{
VALUE new;
struct glob_data *data;
char *p1, *p2, *pend, *s;
int len = 0;
new = obj_alloc(class);
Make_Data_Struct(new, id_data, struct glob_data, Qnil, glob_free, data);
data->globs = ALLOC_N(char*, 1);
p1 = p2 = str->ptr;
pend = p1 + str->len;
while (p1 < pend) {
char s[MAXPATHLEN];
int d;
while (isdelim(*p1)) p1++;
p2 = p1;
while (!isdelim(*p2)) p2++;
d = p2 - p1;
memcpy(s, p1, d);
s[d] = '\0';
len = expand_brace(s, data, len);
p1 = p2;
}
data->globs[len] = Qnil;
return new;
}
VALUE
glob_new(str)
char *str;
{
return glob_new0(C_Glob, str);
}
char **glob_filename();
static VALUE
Fglob_each(glob)
VALUE glob;
{
struct glob_data *data;
char **patv, **fnames, **ff;
Get_Data_Struct(glob, id_data, struct glob_data, data);
for (patv = data->globs; *patv; patv++) {
if (!glob_pattern_p(*patv)) {
rb_yield(str_new2(*patv));
continue;
}
fnames = ff = glob_filename(*patv);
while (*ff) {
rb_yield(str_new2(*ff));
free(*ff);
ff++;
}
free(fnames);
}
return Qnil;
}
VALUE
Fglob_match(glob, str)
VALUE glob;
struct RString *str;
{
struct glob_data *data;
char **patv;
Check_Type(str, T_STRING);
Get_Data_Struct(glob, id_data, struct glob_data, data);
patv = data->globs;
while (*patv) {
if (fnmatch(*patv, str->ptr, 0) != FNM_NOMATCH)
return TRUE;
patv++;
}
return FALSE;
}
extern VALUE M_Enumerable;
Init_Glob()
{
C_Glob = rb_define_class("Glob", C_Object);
rb_include_module(C_Glob, M_Enumerable);
rb_define_single_method(C_Glob, "new", glob_new0, 1);
rb_define_method(C_Glob, "each", Fglob_each, 0);
rb_define_method(C_Glob, "=~", Fglob_match, 1);
id_data = rb_intern("data");
}
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