1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302
|
/* Generate .po file from doc-string file.
Scan specified doc-string file, creating .po format messages for processing
with msgfmt. The results go to standard output or to a file specified
with -a or -o (-a to append, -o to start from nothing).
Kludge to make up for shortcoming in make-docfile and Snarf-documentation:
If arg before input filename is -p, we are scanning an add-on
package, which requires slightly different processing.
*/
#include <stdio.h>
#include <stdlib.h>
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#define EXIT_FAILURE 1
#endif
/* #define BUFSIZE 8192 */
/* #define BUFSIZE 16384 */
#define BUFSIZE 32768
#define NEWSTRING 31 /* Character signalling start of new doc string */
#define LINEEND "\\n"
#define ENDSTRING "\"\n"
#define LINEBEGIN " \""
#define LINEBREAK ENDSTRING LINEBEGIN
/* some brain-dead headers define this ... */
#undef FALSE
#undef TRUE
enum boolean { FALSE, TRUE };
/***********************/
/* buffer pseudo-class */
/***********************/
typedef struct _buffer
{
size_t index; /* current position in buf[] */
size_t size; /* size of buf */
char *buf;
} buffer_struct;
#define BUF_NULL {0, 0, NULL}
int buf_init (buffer_struct *buffer, size_t size);
void buf_free (buffer_struct *buffer);
void buf_clear (buffer_struct *buffer);
int buf_putc (buffer_struct *buffer, int c);
int buf_print (buffer_struct *buffer, const char *s);
/********************/
/* global variables */
/********************/
FILE *infile = NULL;
FILE *outfile = NULL;
buffer_struct buf = BUF_NULL;
void scan_file (enum boolean package);
void initialize (void);
void clean_exit (int status);
void buf_putc_safe (int c);
void buf_print_safe (const char *s);
void terminate_string (void);
main (int argc, char *argv[])
{
register int i;
enum boolean package = FALSE; /* TRUE if scanning add-on package */
initialize ();
outfile = stdout;
/* If first two args are -o FILE, output to FILE. */
i = 1;
if (argc > i + 1 && strcmp (argv[i], "-o") == 0) {
outfile = fopen (argv[++i], "w");
++i;
}
/* ...Or if args are -a FILE, append to FILE. */
if (argc > i + 1 && strcmp (argv[i], "-a") == 0) {
outfile = fopen (argv[++i], "a");
++i;
}
if (!outfile) {
fprintf (stderr, "Unable to open output file %s\n", argv[--i]);
return 1;
}
if (argc > i && !strcmp (argv[i], "-p")) {
package = TRUE;
++i;
}
infile = fopen (argv[i], "r");
if (!infile) {
fprintf (stderr, "Unable to open input file %s\n", argv[i]);
return 1;
}
scan_file (package);
clean_exit (EXIT_SUCCESS);
}
void scan_file (enum boolean package)
{
register int c; /* Character read in */
fprintf (outfile, "###############\n");
fprintf (outfile, "# DOC strings #\n");
fprintf (outfile, "###############\n");
while (c = getc (infile), !feof (infile)) {
if (c == NEWSTRING) {
/* If a string was being processed, terminate it. */
if (buf.index > 0)
terminate_string ();
/* Skip function or variable name. */
while (c != '\n')
c = getc (infile);
c = getc (infile);
/* Begin a new string. */
fprintf (outfile, "msgid \"");
buf_print_safe ("msgstr \"");
}
if (c == '\n') {
/* Peek at next character. */
c = getc (infile);
ungetc (c, infile);
/* For add-on (i.e., non-preloaded) documentation, ignore the last
carriage return of a string. */
if (!(package && c == NEWSTRING)) {
fprintf (outfile, LINEEND);
buf_print_safe (LINEEND);
}
/* If not end of string, continue it on the next line. */
if (c != NEWSTRING) {
fprintf (outfile, LINEBREAK);
buf_print_safe (LINEBREAK);
}
}
else {
/* If character is \ or ", precede it by a backslash. */
if (c == '\\' || c == '\"') {
putc ('\\', outfile);
buf_putc_safe ('\\');
}
putc (c, outfile);
buf_putc_safe (c);
}
}
terminate_string ();
}
/* initialize sets up the global variables.
*/
void initialize (void)
{
if (buf_init (&buf, BUFSIZE) != 0)
clean_exit (EXIT_FAILURE);
}
/* clean_exit returns any resources and terminates the program.
An error message is printed if status is EXIT_FAILURE.
*/
void clean_exit (int status)
{
if (buf.size > 0)
buf_free (&buf);
if (outfile)
fclose (outfile);
if (infile)
fclose (infile);
if (status == EXIT_FAILURE)
fprintf (stderr, "make-po abnormally terminated\n");
exit (status);
}
/* buf_putc_safe writes the character c on the global buffer buf,
checking to make sure that the operation was successful.
*/
void buf_putc_safe (int c)
{
register int status;
status = buf_putc (&buf, c);
if (status == EOF)
clean_exit (EXIT_FAILURE);
}
/* buf_putc_safe writes the string s on the global buffer buf,
checking to make sure that the operation was successful.
*/
void buf_print_safe (const char *s)
{
register int status;
status = buf_print (&buf, s);
if (status < 0)
clean_exit (EXIT_FAILURE);
}
/* terminate_string terminates the current doc string and outputs the buffer.
*/
void terminate_string (void)
{
fprintf (outfile, ENDSTRING);
/* Make the "translation" different from the original string. */
buf_print_safe ("_X");
buf_print_safe (ENDSTRING);
fprintf (outfile, "%s", buf.buf);
buf_clear (&buf);
}
/*********************************/
/* buffer pseudo-class functions */
/*********************************/
/* buf_init initializes a buffer to the specified size.
It returns non-zero if the attempt fails.
*/
int buf_init (buffer_struct *buffer, size_t size)
{
buffer->buf = malloc (size);
if (buffer->buf == NULL)
return 1;
buffer->size = size;
buf_clear (buffer);
return 0;
}
/* buf_free releases the memory allocated for the buffer.
*/
void buf_free (buffer_struct *buffer)
{
free (buffer->buf);
buffer->size = 0;
}
/* buf_clear resets a buffer to an empty string.
*/
void buf_clear (buffer_struct *buffer)
{
buffer->index = 0;
buffer->buf[0] = '\0';
}
/* buf_putc writes the character c on the buffer.
It returns the character written, or EOF for error.
*/
int buf_putc (buffer_struct *buffer, int c)
{
if (buffer->index >= buffer->size)
return EOF;
buffer->buf[buffer->index++] = c;
return c;
}
/* buf_print writes the string s on the buffer.
It returns the number of characters written, or negative if an error occurred.
*/
int buf_print (buffer_struct *buffer, const char *s)
{
register int len;
len = strlen (s);
if (buffer->index + len >= buffer->size)
return -1;
sprintf (&(buffer->buf[buffer->index]), s);
buffer->index += len;
return len;
}
|