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/*
* lmo - Lua Machine Objects - PO to LMO conversion tool
*
* Copyright (C) 2009-2012 Jo-Philipp Wich <xm@subsignal.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "template_lmo.h"
static void die(const char *msg)
{
fprintf(stderr, "Error: %s\n", msg);
exit(1);
}
static void usage(const char *name)
{
fprintf(stderr, "Usage: %s input.po output.lmo\n", name);
exit(1);
}
static void print(const void *ptr, size_t size, size_t nmemb, FILE *stream)
{
if( fwrite(ptr, size, nmemb, stream) == 0 )
die("Failed to write stdout");
}
static int extract_string(const char *src, char *dest, int len)
{
int pos = 0;
int esc = 0;
int off = -1;
for( pos = 0; (pos < strlen(src)) && (pos < len); pos++ )
{
if( (off == -1) && (src[pos] == '"') )
{
off = pos + 1;
}
else if( off >= 0 )
{
if( esc == 1 )
{
switch (src[pos])
{
case '"':
case '\\':
off++;
break;
}
dest[pos-off] = src[pos];
esc = 0;
}
else if( src[pos] == '\\' )
{
dest[pos-off] = src[pos];
esc = 1;
}
else if( src[pos] != '"' )
{
dest[pos-off] = src[pos];
}
else
{
dest[pos-off] = '\0';
break;
}
}
}
return (off > -1) ? strlen(dest) : -1;
}
static int cmp_index(const void *a, const void *b)
{
uint32_t x = ntohl(((const lmo_entry_t *)a)->key_id);
uint32_t y = ntohl(((const lmo_entry_t *)b)->key_id);
if (x < y)
return -1;
else if (x > y)
return 1;
return 0;
}
static void print_index(void *array, int n, FILE *out)
{
lmo_entry_t *e;
qsort(array, n, sizeof(*e), cmp_index);
for (e = array; n > 0; n--, e++)
{
print(&e->key_id, sizeof(uint32_t), 1, out);
print(&e->val_id, sizeof(uint32_t), 1, out);
print(&e->offset, sizeof(uint32_t), 1, out);
print(&e->length, sizeof(uint32_t), 1, out);
}
}
int main(int argc, char *argv[])
{
char line[4096];
char key[4096];
char val[4096];
char tmp[4096];
int state = 0;
int offset = 0;
int length = 0;
int n_entries = 0;
void *array = NULL;
lmo_entry_t *entry = NULL;
uint32_t key_id, val_id;
FILE *in;
FILE *out;
if( (argc != 3) || ((in = fopen(argv[1], "r")) == NULL) || ((out = fopen(argv[2], "w")) == NULL) )
usage(argv[0]);
memset(line, 0, sizeof(key));
memset(key, 0, sizeof(val));
memset(val, 0, sizeof(val));
while( (NULL != fgets(line, sizeof(line), in)) || (state >= 2 && feof(in)) )
{
if( state == 0 && strstr(line, "msgid \"") == line )
{
switch(extract_string(line, key, sizeof(key)))
{
case -1:
die("Syntax error in msgid");
case 0:
state = 1;
break;
default:
state = 2;
}
}
else if( state == 1 || state == 2 )
{
if( strstr(line, "msgstr \"") == line || state == 2 )
{
switch(extract_string(line, val, sizeof(val)))
{
case -1:
state = 4;
break;
default:
state = 3;
}
}
else
{
switch(extract_string(line, tmp, sizeof(tmp)))
{
case -1:
state = 2;
break;
default:
strcat(key, tmp);
}
}
}
else if( state == 3 )
{
switch(extract_string(line, tmp, sizeof(tmp)))
{
case -1:
state = 4;
break;
default:
strcat(val, tmp);
}
}
if( state == 4 )
{
if( strlen(key) > 0 && strlen(val) > 0 )
{
key_id = sfh_hash(key, strlen(key));
val_id = sfh_hash(val, strlen(val));
if( key_id != val_id )
{
n_entries++;
array = realloc(array, n_entries * sizeof(lmo_entry_t));
entry = (lmo_entry_t *)array + n_entries - 1;
if (!array)
die("Out of memory");
entry->key_id = htonl(key_id);
entry->val_id = htonl(val_id);
entry->offset = htonl(offset);
entry->length = htonl(strlen(val));
length = strlen(val) + ((4 - (strlen(val) % 4)) % 4);
print(val, length, 1, out);
offset += length;
}
}
state = 0;
memset(key, 0, sizeof(key));
memset(val, 0, sizeof(val));
}
memset(line, 0, sizeof(line));
}
print_index(array, n_entries, out);
if( offset > 0 )
{
offset = htonl(offset);
print(&offset, sizeof(uint32_t), 1, out);
fsync(fileno(out));
fclose(out);
}
else
{
fclose(out);
unlink(argv[2]);
}
fclose(in);
return(0);
}
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