/**
* isregex: test whether or not regular expression
*
* @param[in] s string
* @return 1: is regex, 0: not regex
*/
int
isregex(const char *s)
{
int c;
while ((c = *s++) != '\0')
if (isregexchar(c))
return 1;
return 0;
}
/**
* gtags_first: return first record
*
* @param[in] gtop #GTOP structure
* @param[in] pattern tag name <br>
* - may be regular expression
* - may be @VAR{NULL}
* @param[in] flags #GTOP_PREFIX: prefix read <br>
* #GTOP_KEY: read key only <br>
* #GTOP_PATH: read path only <br>
* #GTOP_NOREGEX: don't use regular expression. <br>
* #GTOP_IGNORECASE: ignore case distinction. <br>
* #GTOP_BASICREGEX: use basic regular expression. <br>
* #GTOP_NOSORT: don't sort
* @return record
*/
GTP *
gtags_first(GTOP *gtop, const char *pattern, int flags)
{
int dbflags = 0;
int regflags = 0;
char prefix[IDENTLEN];
static regex_t reg;
regex_t *preg = ®
const char *key = NULL;
const char *tagline;
/* Settlement for last time if any */
if (gtop->path_hash) {
strhash_close(gtop->path_hash);
gtop->path_hash = NULL;
}
if (gtop->path_array) {
free(gtop->path_array);
gtop->path_array = NULL;
}
gtop->flags = flags;
if (flags & GTOP_PREFIX && pattern != NULL)
dbflags |= DBOP_PREFIX;
if (flags & GTOP_KEY)
dbflags |= DBOP_KEY;
if (!(flags & GTOP_BASICREGEX))
regflags |= REG_EXTENDED;
if (flags & GTOP_IGNORECASE)
regflags |= REG_ICASE;
/*
* Get key and compiled regular expression for dbop_xxxx().
*/
if (flags & GTOP_NOREGEX) {
key = pattern;
preg = NULL;
} else if (pattern == NULL || !strcmp(pattern, ".*")) {
/*
* Since the regular expression '.*' matches to any record,
* we take sequential read method.
*/
key = NULL;
preg = NULL;
} else if (isregex(pattern) && regcomp(preg, pattern, regflags) == 0) {
const char *p;
/*
* If the pattern include '^' + some non regular expression
* characters like '^aaa[0-9]', we take prefix read method
* with the non regular expression part as the prefix.
*/
if (!(flags & GTOP_IGNORECASE) && *pattern == '^' && *(p = pattern + 1) && !isregexchar(*p)) {
int i = 0;
while (*p && !isregexchar(*p) && i < IDENTLEN)
prefix[i++] = *p++;
prefix[i] = '\0';
key = prefix;
dbflags |= DBOP_PREFIX;
} else {
key = NULL;
}
} else {
key = pattern;
preg = NULL;
}
/*
* If GTOP_PATH is set, at first, we collect all path names in a pool and
* sort them. gtags_first() and gtags_next() returns one of the pool.
*/
if (gtop->flags & GTOP_PATH) {
struct sh_entry *entry;
char *p;
const char *cp;
unsigned long i;
gtop->path_hash = strhash_open(HASHBUCKETS);
/*
* Pool path names.
*
* fid path name
* +--------------------------
* |100 ./aaa/a.c
* |105 ./aaa/b.c
* ...
*/
for (tagline = dbop_first(gtop->dbop, key, preg, dbflags);
tagline != NULL;
tagline = dbop_next(gtop->dbop))
{
VIRTUAL_GRTAGS_GSYMS_PROCESSING(gtop);
/* extract file id */
p = locatestring(tagline, " ", MATCH_FIRST);
if (p == NULL)
die("Illegal tag record. '%s'\n", tagline);
*p = '\0';
entry = strhash_assign(gtop->path_hash, tagline, 1);
/* new entry: get path name and set. */
if (entry->value == NULL) {
cp = gpath_fid2path(tagline, NULL);
if (cp == NULL)
die("GPATH is corrupted.(file id '%s' not found)", tagline);
entry->value = strhash_strdup(gtop->path_hash, cp, 0);
}
}
/*
* Sort path names.
*
* fid path name path_array (sort)
* +-------------------------- +---+
* |100 ./aaa/a.c <-------* |
* |105 ./aaa/b.c <-------* |
* ... ...
*/
gtop->path_array = (char **)check_malloc(gtop->path_hash->entries * sizeof(char *));
i = 0;
for (entry = strhash_first(gtop->path_hash); entry != NULL; entry = strhash_next(gtop->path_hash))
gtop->path_array[i++] = entry->value;
if (i != gtop->path_hash->entries)
die("Something is wrong. 'i = %lu, entries = %lu'" , i, gtop->path_hash->entries);
if (!(gtop->flags & GTOP_NOSORT))
qsort(gtop->path_array, gtop->path_hash->entries, sizeof(char *), compare_path);
gtop->path_count = gtop->path_hash->entries;
gtop->path_index = 0;
if (gtop->path_index >= gtop->path_count)
return NULL;
gtop->gtp.path = gtop->path_array[gtop->path_index++];
return >op->gtp;
} else if (gtop->flags & GTOP_KEY) {
for (gtop->gtp.tag = dbop_first(gtop->dbop, key, preg, dbflags);
gtop->gtp.tag != NULL;
gtop->gtp.tag = dbop_next(gtop->dbop))
{
VIRTUAL_GRTAGS_GSYMS_PROCESSING(gtop);
break;
}
return gtop->gtp.tag ? >op->gtp : NULL;
} else {
if (gtop->vb == NULL)
gtop->vb = varray_open(sizeof(GTP), 200);
else
varray_reset(gtop->vb);
if (gtop->segment_pool == NULL)
gtop->segment_pool = pool_open();
else
pool_reset(gtop->segment_pool);
if (gtop->path_hash == NULL)
gtop->path_hash = strhash_open(HASHBUCKETS);
else
strhash_reset(gtop->path_hash);
tagline = dbop_first(gtop->dbop, key, preg, dbflags);
if (tagline == NULL)
return NULL;
/*
* Dbop_next() wil read the same record again.
*/
dbop_unread(gtop->dbop);
/*
* Read a tag segment with sorting.
*/
segment_read(gtop);
return >op->gtp_array[gtop->gtp_index++];
}
}
/*
* prepare_skip: prepare skipping files.
*
* go) skip regular expression for skip files.
* go) listarry[] skip list.
* go) list_count count of skip list.
*/
static void
prepare_skip(void)
{
char *skiplist;
STRBUF *reg = strbuf_open(0);
int reg_count = 0;
char *p, *q;
int flags = REG_EXTENDED|REG_NEWLINE;
/*
* load icase_path option.
*/
if (getconfb("icase_path"))
flags |= REG_ICASE;
#if defined(_WIN32) || defined(__DJGPP__)
flags |= REG_ICASE;
#endif
/*
* initialize common data.
*/
if (!list)
list = strbuf_open(0);
else
strbuf_reset(list);
list_count = 0;
if (listarray)
(void)free(listarray);
listarray = (char **)0;
/*
* load skip data.
*/
if (!getconfs("skip", reg)) {
strbuf_close(reg);
return;
}
skiplist = check_strdup(strbuf_value(reg));
trim(skiplist);
strbuf_reset(reg);
/*
* construct regular expression.
*/
strbuf_putc(reg, '('); /* ) */
/* skip files which start with '.' e.g. .cvsignore */
strbuf_puts(reg, "/\\.[^/]+$|");
strbuf_puts(reg, "/\\.[^/]+/|");
for (p = skiplist; p; ) {
char *skipf = p;
if ((p = locatestring(p, ",", MATCH_FIRST)) != NULL)
*p++ = 0;
if (*skipf == '/') {
list_count++;
strbuf_puts0(list, skipf);
} else {
reg_count++;
strbuf_putc(reg, '/');
for (q = skipf; *q; q++) {
if (isregexchar(*q))
strbuf_putc(reg, '\\');
strbuf_putc(reg, *q);
}
if (*(q - 1) != '/')
strbuf_putc(reg, '$');
if (p)
strbuf_putc(reg, '|');
}
}
strbuf_unputc(reg, '|');
strbuf_putc(reg, ')');
if (reg_count > 0) {
int retval;
/*
* compile regular expression.
*/
skip = &skip_area;
retval = regcomp(skip, strbuf_value(reg), flags);
#ifdef DEBUG
if (debug)
fprintf(stderr, "skip regex: %s\n", strbuf_value(reg));
#endif
if (retval != 0)
die("cannot compile regular expression.");
} else {
skip = (regex_t *)0;
}
if (list_count > 0) {
int i;
listarray = (char **)check_malloc(sizeof(char *) * list_count);
p = strbuf_value(list);
#ifdef DEBUG
if (debug)
fprintf(stderr, "skip list: ");
#endif
for (i = 0; i < list_count; i++) {
#ifdef DEBUG
if (debug) {
fprintf(stderr, "%s", p);
if (i + 1 < list_count)
fputc(',', stderr);
}
#endif
listarray[i] = p;
p += strlen(p) + 1;
}
#ifdef DEBUG
if (debug)
fputc('\n', stderr);
#endif
}
strbuf_close(reg);
free(skiplist);
}
/**
* makefileindex: make file index.
*
* @param[in] file output file name
* @param[out] a_files top level file index
*/
int
makefileindex(const char *file, STRBUF *a_files)
{
STATIC_STRBUF(sb);
FILE *filesop;
int flags = REG_EXTENDED;
/*
* Basedir is a directory to which we are paying attention on each
* occasion. It starts with ".", grows and shrink according to the
* progress of processing. It isn't copied each every recursive call
* not to waste the stack.
*/
char basedir[MAXPATHLEN];
/*
* Initialize data.
*/
indexlink = (Fflag) ? "../files" : "../mains";
src_count = 0;
gp = gfind_open(dbpath, NULL, other_files ? GPATH_BOTH : GPATH_SOURCE);
/*
* for collecting include files.
*/
if (w32)
flags |= REG_ICASE;
strbuf_clear(sb);
strbuf_puts(sb, "\\.(");
{
const char *p = include_file_suffixes;
int c;
while ((c = (unsigned char)*p++) != '\0') {
if (isregexchar(c))
strbuf_putc(sb, '\\');
else if (c == ',')
c = '|';
strbuf_putc(sb, c);
}
}
strbuf_puts(sb, ")$");
if (regcomp(&is_include_file, strbuf_value(sb), flags) != 0)
die("cannot compile regular expression '%s'.", strbuf_value(sb));
/*
* Write to files.html.
*/
if ((filesop = fopen(makepath(distpath, file, NULL), "w")) == NULL)
die("cannot open file '%s'.", file);
fputs_nl(gen_page_index_begin(title_file_index, jscode), filesop);
fputs_nl(body_begin, filesop);
fputs(header_begin, filesop);
fputs(gen_href_begin(NULL, "files", normal_suffix, NULL), filesop);
fputs(title_file_index, filesop);
fputs(gen_href_end(), filesop);
fputs_nl(header_end, filesop);
if (tree_view) {
fputs_nl(tree_control, filesop);
fputs_nl(tree_loading, filesop);
if (tree_view_type) {
fprintf(filesop, tree_begin_using, tree_view_type);
fputc('\n', filesop);
} else {
fputs_nl(tree_begin, filesop);
}
} else if (table_flist)
fputs_nl(flist_begin, filesop);
else if (!no_order_list)
fputs_nl(list_begin, filesop);
FILEMAP = NULL;
if (filemap_file) {
if (!(FILEMAP = fopen(makepath(distpath, "FILEMAP", NULL), "w")))
die("cannot open '%s'.", makepath(distpath, "FILEMAP", NULL));
}
/*
* print whole directory tree.
*/
files = a_files;
strcpy(basedir, ".");
(void)print_directory(0, basedir);
if (tree_view)
strbuf_puts(files, tree_end);
if (filemap_file)
fclose(FILEMAP);
gfind_close(gp);
regfree(&is_include_file);
fputs(strbuf_value(files), filesop);
if (tree_view)
fputs_nl(tree_end, filesop);
else if (table_flist)
fputs_nl(flist_end, filesop);
else if (!no_order_list)
fputs_nl(list_end, filesop);
fputs_nl(body_end, filesop);
fputs_nl(gen_page_end(), filesop);
fclose(filesop);
html_count++;
return src_count;
}