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cups/locale/checkpo.c

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/*
* Verify that translations in the .po file have the same number and type of
* printf-style format strings.
*
* Copyright © 2021-2023 by OpenPrinting.
* Copyright © 2007-2017 by Apple Inc.
* Copyright © 1997-2007 by Easy Software Products, all rights reserved.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*
* Usage:
*
* checkpo filename.{po,strings} [... filenameN.{po,strings}]
*
* Compile with:
*
* gcc -o checkpo checkpo.c `cups-config --libs`
*/
#include <cups/cups-private.h>
/*
* Local functions...
*/
static char *abbreviate(const char *s, char *buf, int bufsize);
static cups_array_t *collect_formats(const char *id);
static void free_formats(cups_array_t *fmts);
/*
* 'main()' - Validate .po and .strings files.
*/
int /* O - Exit code */
main(int argc, /* I - Number of command-line args */
char *argv[]) /* I - Command-line arguments */
{
int i; /* Looping var */
cups_array_t *po; /* .po file */
_cups_message_t *msg; /* Current message */
cups_array_t *idfmts, /* Format strings in msgid */
*strfmts; /* Format strings in msgstr */
char *idfmt, /* Current msgid format string */
*strfmt; /* Current msgstr format string */
int fmtidx; /* Format index */
int status, /* Exit status */
pass, /* Pass/fail status */
untranslated; /* Untranslated messages */
char idbuf[80], /* Abbreviated msgid */
strbuf[80]; /* Abbreviated msgstr */
if (argc < 2)
{
puts("Usage: checkpo filename.{po,strings} [... filenameN.{po,strings}]");
return (1);
}
/*
* Check every .po or .strings file on the command-line...
*/
for (i = 1, status = 0; i < argc; i ++)
{
/*
* Use the CUPS .po loader to get the message strings...
*/
if (strstr(argv[i], ".strings"))
po = _cupsMessageLoad(argv[i], _CUPS_MESSAGE_STRINGS);
else
po = _cupsMessageLoad(argv[i], _CUPS_MESSAGE_PO | _CUPS_MESSAGE_EMPTY);
if (!po)
{
perror(argv[i]);
return (1);
}
if (i > 1)
putchar('\n');
printf("%s: ", argv[i]);
fflush(stdout);
/*
* Scan every message for a % string and then match them up with
* the corresponding string in the translation...
*/
pass = 1;
untranslated = 0;
for (msg = (_cups_message_t *)cupsArrayFirst(po);
msg;
msg = (_cups_message_t *)cupsArrayNext(po))
{
/*
* Make sure filter message prefixes are not translated...
*/
if (!strncmp(msg->msg, "ALERT:", 6) || !strncmp(msg->msg, "CRIT:", 5) ||
!strncmp(msg->msg, "DEBUG:", 6) || !strncmp(msg->msg, "DEBUG2:", 7) ||
!strncmp(msg->msg, "EMERG:", 6) || !strncmp(msg->msg, "ERROR:", 6) ||
!strncmp(msg->msg, "INFO:", 5) || !strncmp(msg->msg, "NOTICE:", 7) ||
!strncmp(msg->msg, "WARNING:", 8))
{
if (pass)
{
pass = 0;
puts("FAIL");
}
printf(" Bad prefix on filter message \"%s\"\n",
abbreviate(msg->msg, idbuf, sizeof(idbuf)));
}
idfmt = msg->msg + strlen(msg->msg) - 1;
if (idfmt >= msg->msg && *idfmt == '\n')
{
if (pass)
{
pass = 0;
puts("FAIL");
}
printf(" Trailing newline in message \"%s\"\n",
abbreviate(msg->msg, idbuf, sizeof(idbuf)));
}
for (; idfmt >= msg->msg; idfmt --)
if (!isspace(*idfmt & 255))
break;
if (idfmt >= msg->msg && *idfmt == '!')
{
if (pass)
{
pass = 0;
puts("FAIL");
}
printf(" Exclamation in message \"%s\"\n",
abbreviate(msg->msg, idbuf, sizeof(idbuf)));
}
if ((idfmt - 2) >= msg->msg && !strncmp(idfmt - 2, "...", 3))
{
if (pass)
{
pass = 0;
puts("FAIL");
}
printf(" Ellipsis in message \"%s\"\n",
abbreviate(msg->msg, idbuf, sizeof(idbuf)));
}
if (!msg->str || !msg->str[0])
{
untranslated ++;
continue;
}
else if (strchr(msg->msg, '%'))
{
idfmts = collect_formats(msg->msg);
strfmts = collect_formats(msg->str);
fmtidx = 0;
for (strfmt = (char *)cupsArrayFirst(strfmts);
strfmt;
strfmt = (char *)cupsArrayNext(strfmts))
{
if (isdigit(strfmt[1] & 255) && strfmt[2] == '$')
{
/*
* Handle positioned format stuff...
*/
fmtidx = strfmt[1] - '1';
strfmt += 3;
if ((idfmt = (char *)cupsArrayIndex(idfmts, fmtidx)) != NULL)
idfmt ++;
}
else
{
/*
* Compare against the current format...
*/
idfmt = (char *)cupsArrayIndex(idfmts, fmtidx);
}
fmtidx ++;
if (!idfmt || strcmp(strfmt, idfmt))
break;
}
if (cupsArrayCount(strfmts) != cupsArrayCount(idfmts) || strfmt)
{
if (pass)
{
pass = 0;
puts("FAIL");
}
printf(" Bad translation string \"%s\"\n for \"%s\"\n",
abbreviate(msg->str, strbuf, sizeof(strbuf)),
abbreviate(msg->msg, idbuf, sizeof(idbuf)));
fputs(" Translation formats:", stdout);
for (strfmt = (char *)cupsArrayFirst(strfmts);
strfmt;
strfmt = (char *)cupsArrayNext(strfmts))
printf(" %s", strfmt);
fputs("\n Original formats:", stdout);
for (idfmt = (char *)cupsArrayFirst(idfmts);
idfmt;
idfmt = (char *)cupsArrayNext(idfmts))
printf(" %s", idfmt);
putchar('\n');
putchar('\n');
}
free_formats(idfmts);
free_formats(strfmts);
}
/*
* Only allow \\, \n, \r, \t, \", and \### character escapes...
*/
for (strfmt = msg->str; *strfmt; strfmt ++)
{
if (*strfmt == '\\')
{
strfmt ++;
if (*strfmt != '\\' && *strfmt != 'n' && *strfmt != 'r' && *strfmt != 't' && *strfmt != '\"' && !isdigit(*strfmt & 255))
{
if (pass)
{
pass = 0;
puts("FAIL");
}
printf(" Bad escape \\%c in filter message \"%s\"\n"
" for \"%s\"\n", strfmt[1],
abbreviate(msg->str, strbuf, sizeof(strbuf)),
abbreviate(msg->msg, idbuf, sizeof(idbuf)));
break;
}
}
}
}
if (pass)
{
int count = cupsArrayCount(po); /* Total number of messages */
if (untranslated >= (count / 10) && strcmp(argv[i], "cups.pot"))
{
/*
* Only allow 10% of messages to be untranslated before we fail...
*/
pass = 0;
puts("FAIL");
printf(" Too many untranslated messages (%d of %d or %.1f%% are translated)\n", count - untranslated, count, 100.0 - 100.0 * untranslated / count);
}
else if (untranslated > 0)
printf("PASS (%d of %d or %.1f%% are translated)\n", count - untranslated, count, 100.0 - 100.0 * untranslated / count);
else
puts("PASS");
}
if (!pass)
status = 1;
_cupsMessageFree(po);
}
return (status);
}
/*
* 'abbreviate()' - Abbreviate a message string as needed.
*/
static char * /* O - Abbreviated string */
abbreviate(const char *s, /* I - String to abbreviate */
char *buf, /* I - Buffer */
int bufsize) /* I - Size of buffer */
{
char *bufptr; /* Pointer into buffer */
for (bufptr = buf, bufsize -= 4; *s && bufsize > 0; s ++)
{
if (*s == '\n')
{
if (bufsize < 2)
break;
*bufptr++ = '\\';
*bufptr++ = 'n';
bufsize -= 2;
}
else if (*s == '\t')
{
if (bufsize < 2)
break;
*bufptr++ = '\\';
*bufptr++ = 't';
bufsize -= 2;
}
else if (*s >= 0 && *s < ' ')
{
if (bufsize < 4)
break;
snprintf(bufptr, (size_t)bufsize, "\\%03o", *s);
bufptr += 4;
bufsize -= 4;
}
else
{
*bufptr++ = *s;
bufsize --;
}
}
if (*s)
memcpy(bufptr, "...", 4);
else
*bufptr = '\0';
return (buf);
}
/*
* 'collect_formats()' - Collect all of the format strings in the msgid.
*/
static cups_array_t * /* O - Array of format strings */
collect_formats(const char *id) /* I - msgid string */
{
cups_array_t *fmts; /* Array of format strings */
char buf[255], /* Format string buffer */
*bufptr; /* Pointer into format string */
fmts = cupsArrayNew(NULL, NULL);
while ((id = strchr(id, '%')) != NULL)
{
if (id[1] == '%')
{
/*
* Skip %%...
*/
id += 2;
continue;
}
for (bufptr = buf; *id && bufptr < (buf + sizeof(buf) - 1); id ++)
{
*bufptr++ = *id;
if (strchr("CDEFGIOSUXcdeifgopsux", *id))
{
id ++;
break;
}
}
*bufptr = '\0';
cupsArrayAdd(fmts, strdup(buf));
}
return (fmts);
}
/*
* 'free_formats()' - Free all of the format strings.
*/
static void
free_formats(cups_array_t *fmts) /* I - Array of format strings */
{
char *s; /* Current string */
for (s = (char *)cupsArrayFirst(fmts); s; s = (char *)cupsArrayNext(fmts))
free(s);
cupsArrayDelete(fmts);
}
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