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Change iso name conversion functions back to old style.

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This commit is contained in:
Vreixo Formoso
2007-12-22 20:49:30 +01:00
parent 9e9c077c6e
commit 9ec475a900
5 changed files with 291 additions and 44 deletions
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3
src/ecma119.c
View File

@ -136,10 +136,12 @@ int ecma119_writer_compute_data_blocks(IsoImageWriter *writer)
target = writer->target;
/* compute position of directories */
iso_msg_debug(target->image, "Computing position of dir structure");
target->ndirs = 0;
calc_dir_pos(target, target->root);
/* compute length of pathlist */
iso_msg_debug(target->image, "Computing length of pathlist");
path_table_size = calc_path_table_size(target->root);
/* compute location for path tables */
@ -529,6 +531,7 @@ int ecma119_writer_create(Ecma119Image *target)
/* add this writer to image */
target->writers[target->nwriters++] = writer;
iso_msg_debug(target->image, "Creating low level ECMA-119 tree...");
ret = ecma119_tree_create(target);
if (ret < 0) {
return ret;

22
src/ecma119_tree.c
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@ -25,6 +25,7 @@ int get_iso_name(Ecma119Image *img, IsoNode *iso, char **name)
{
int ret;
char *ascii_name;
char *isoname = NULL;
if (iso->name == NULL) {
/* it is not necessarily an error, it can be the root */
@ -41,19 +42,28 @@ int get_iso_name(Ecma119Image *img, IsoNode *iso, char **name)
// TODO add support for relaxed constraints
if (iso->type == LIBISO_DIR) {
if (img->iso_level == 1) {
iso_dirid(ascii_name, 8);
isoname = iso_1_dirid(ascii_name);
} else {
iso_dirid(ascii_name, 31);
isoname = iso_2_dirid(ascii_name);
}
} else {
if (img->iso_level == 1) {
iso_1_fileid(ascii_name);
isoname = iso_1_fileid(ascii_name);
} else {
iso_2_fileid(ascii_name);
isoname = iso_2_fileid(ascii_name);
}
}
*name = ascii_name;
return ISO_SUCCESS;
free(ascii_name);
if (isoname != NULL) {
*name = isoname;
return ISO_SUCCESS;
} else {
/*
* only possible if mem error, as check for empty names is done
* in public tree
*/
return ISO_MEM_ERROR;
}
}
static

174
src/util.c
View File

@ -202,62 +202,87 @@ static int valid_a_char(char c)
|| (c >= 'A' && c <= 'Z') || (c == '_');
}
void iso_dirid(char *src, int maxlen)
static
char *iso_dirid(const char *src, int size)
{
size_t len, i;
char name[32];
len = strlen(src);
if (len > maxlen) {
src[maxlen] = '\0';
len = maxlen;
if (len > size) {
len = size;
}
for (i = 0; i < len; i++) {
char c = toupper(src[i]);
src[i] = valid_d_char(c) ? c : '_';
name[i] = valid_d_char(c) ? c : '_';
}
name[len] = '\0';
return strdup(name);
}
void iso_1_fileid(char *src)
char *iso_1_dirid(const char *src)
{
char *dot; /* Position of the last dot in the filename, will be used to
calculate lname and lext. */
int lname, lext, pos, i;
return iso_dirid(src, 8);
}
char *iso_2_dirid(const char *src)
{
return iso_dirid(src, 31);
}
char *iso_1_fileid(const char *src)
{
char *dot; /* Position of the last dot in the filename, will be used
to calculate lname and lext. */
int lname, lext, pos, i;
char dest[13]; /* 13 = 8 (name) + 1 (.) + 3 (ext) + 1 (\0) */
if (src == NULL) {
return NULL;
}
dot = strrchr(src, '.');
lext = dot ? strlen(dot + 1) : 0;
lname = strlen(src) - lext - (dot ? 1 : 0);
/* If we can't build a filename, return. */
/* If we can't build a filename, return NULL. */
if (lname == 0 && lext == 0) {
return;
return NULL;
}
pos = 0;
/* Convert up to 8 characters of the filename. */
for (i = 0; i < lname && i < 8; i++) {
char c = toupper(src[i]);
src[pos++] = valid_d_char(c) ? c : '_';
dest[pos++] = valid_d_char(c) ? c : '_';
}
/* This dot is mandatory, even if there is no extension. */
src[pos++] = '.';
dest[pos++] = '.';
/* Convert up to 3 characters of the extension, if any. */
for (i = 0; i < lext && i < 3; i++) {
char c = toupper(src[lname + 1 + i]);
src[pos++] = valid_d_char(c) ? c : '_';
dest[pos++] = valid_d_char(c) ? c : '_';
}
src[pos] = '\0';
dest[pos] = '\0';
return strdup(dest);
}
void iso_2_fileid(char *src)
char *iso_2_fileid(const char *src)
{
char *dot;
int lname, lext, lnname, lnext, pos, i;
char dest[32]; /* 32 = 30 (name + ext) + 1 (.) + 1 (\0) */
if (!src)
return;
if (src == NULL) {
return NULL;
}
dot = strrchr(src, '.');
@ -280,23 +305,124 @@ void iso_2_fileid(char *src)
}
if (lnname == 0 && lnext == 0) {
return;
return NULL;
}
pos = 0;
/* Convert up to lnname characters of the filename. */
for (i = 0; i < lnname; i++) {
char c = toupper(src[i]);
src[pos++] = valid_d_char(c) ? c : '_';
dest[pos++] = valid_d_char(c) ? c : '_';
}
src[pos++] = '.';
dest[pos++] = '.';
/* Convert up to lnext characters of the extension, if any. */
for (i = 0; i < lnext; i++) {
char c = toupper(src[lname + 1 + i]);
src[pos++] = valid_d_char(c) ? c : '_';
dest[pos++] = valid_d_char(c) ? c : '_';
}
src[pos] = '\0';
dest[pos] = '\0';
return strdup(dest);
}
//void iso_dirid(char *src, int maxlen)
//{
// size_t len, i;
//
// len = strlen(src);
// if (len > maxlen) {
// src[maxlen] = '\0';
// len = maxlen;
// }
// for (i = 0; i < len; i++) {
// char c = toupper(src[i]);
// src[i] = valid_d_char(c) ? c : '_';
// }
//}
//void iso_1_fileid(char *src)
//{
// char *dot; /* Position of the last dot in the filename, will be used to
// calculate lname and lext. */
// int lname, lext, pos, i;
//
// dot = strrchr(src, '.');
//
// lext = dot ? strlen(dot + 1) : 0;
// lname = strlen(src) - lext - (dot ? 1 : 0);
//
// /* If we can't build a filename, return. */
// if (lname == 0 && lext == 0) {
// return;
// }
//
// pos = 0;
// /* Convert up to 8 characters of the filename. */
// for (i = 0; i < lname && i < 8; i++) {
// char c = toupper(src[i]);
// src[pos++] = valid_d_char(c) ? c : '_';
// }
//
// /* This dot is mandatory, even if there is no extension. */
// src[pos++] = '.';
//
// /* Convert up to 3 characters of the extension, if any. */
// for (i = 0; i < lext && i < 3; i++) {
// char c = toupper(src[lname + 1 + i]);
// src[pos++] = valid_d_char(c) ? c : '_';
// }
// src[pos] = '\0';
//}
//
//void iso_2_fileid(char *src)
//{
// char *dot;
// int lname, lext, lnname, lnext, pos, i;
//
// if (!src)
// return;
//
// dot = strrchr(src, '.');
//
// /*
// * Since the maximum length can be divided freely over the name and
// * extension, we need to calculate their new lengths (lnname and
// * lnext). If the original filename is too long, we start by trimming
// * the extension, but keep a minimum extension length of 3.
// */
// if (dot == NULL || *(dot + 1) == '\0') {
// lname = strlen(src);
// lnname = (lname > 30) ? 30 : lname;
// lext = lnext = 0;
// } else {
// lext = strlen(dot + 1);
// lname = strlen(src) - lext - 1;
// lnext = (strlen(src) > 31 && lext > 3)
// ? (lname < 27 ? 30 - lname : 3) : lext;
// lnname = (strlen(src) > 31) ? 30 - lnext : lname;
// }
//
// if (lnname == 0 && lnext == 0) {
// return;
// }
//
// pos = 0;
// /* Convert up to lnname characters of the filename. */
// for (i = 0; i < lnname; i++) {
// char c = toupper(src[i]);
// src[pos++] = valid_d_char(c) ? c : '_';
// }
// src[pos++] = '.';
// /* Convert up to lnext characters of the extension, if any. */
// for (i = 0; i < lnext; i++) {
// char c = toupper(src[lname + 1 + i]);
// src[pos++] = valid_d_char(c) ? c : '_';
// }
// src[pos] = '\0';
//}
int str2d_char(const char *icharset, const char *input, char **output)
{

32
src/util.h
View File

@ -47,35 +47,39 @@ int int_pow(int base, int power);
int str2ascii(const char *icharset, const char *input, char **output);
/**
* Ensure a given string is a valid ISO directory identifier, modifying
* it if needed.
* Create a level 1 directory identifier.
*
* @param src
* The identifier, in ASCII encoding. It may be modified by the function.
* @param maxlen
* Maximum length supported by current iso level.
* The identifier, in ASCII encoding.
*/
void iso_dirid(char *src, int maxlen);
char *iso_1_dirid(const char *src);
/**
* Ensure a given string is a valid ISO level 1 file identifier, in 8.3
* format, modifying it if needed.
* Create a level 2 directory identifier.
*
* @param src
* The identifier, in ASCII encoding.
*/
char *iso_2_dirid(const char *src);
/**
* Create a level 1 file identifier that consists of a name, in 8.3
* format.
* Note that version number is not added to the file name
*
* @param src
* The identifier, in ASCII encoding. It may be modified by the function.
* The identifier, in ASCII encoding.
*/
void iso_1_fileid(char *src);
char *iso_1_fileid(const char *src);
/**
* Ensure a given string is a valid ISO level 2 file identifier, modifying it
* if needed.
* Create a level 2 file identifier.
* Note that version number is not added to the file name
*
* @param src
* The identifier, in ASCII encoding. It may be modified by the function.
* The identifier, in ASCII encoding.
*/
void iso_2_fileid(char *src);
char *iso_2_fileid(const char *src);
/**
* Convert a given input string to d-chars.