1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * GScanner: Flexible lexical scanner for general purpose.
5 * Copyright (C) 1997, 1998 Tim Janik
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
22 #define __gscanner_c__
30 #include <sys/types.h> /* needed for sys/stat.h */
37 #define to_lower(c) ( \
39 ( (((guchar)(c))>='A' && ((guchar)(c))<='Z') * ('a'-'A') ) | \
40 ( (((guchar)(c))>=192 && ((guchar)(c))<=214) * (224-192) ) | \
41 ( (((guchar)(c))>=216 && ((guchar)(c))<=222) * (248-216) ) | \
47 /* --- typedefs --- */
48 typedef struct _GScannerHashVal GScannerHashVal;
50 struct _GScannerHashVal
58 /* --- variables --- */
59 static GScannerConfig g_scanner_config_template =
63 ) /* cset_skip_characters */,
68 ) /* cset_identifier_first */,
75 ) /* cset_identifier_nth */,
76 ( "#\n" ) /* cpair_comment_single */,
78 FALSE /* case_sensitive */,
80 TRUE /* skip_comment_multi */,
81 TRUE /* skip_comment_single */,
82 TRUE /* scan_comment_multi */,
83 TRUE /* scan_identifier */,
84 FALSE /* scan_identifier_1char */,
85 FALSE /* scan_identifier_NULL */,
86 TRUE /* scan_symbols */,
87 FALSE /* scan_binary */,
88 TRUE /* scan_octal */,
89 TRUE /* scan_float */,
91 FALSE /* scan_hex_dollar */,
92 TRUE /* scan_string_sq */,
93 TRUE /* scan_string_dq */,
94 TRUE /* numbers_2_int */,
95 FALSE /* int_2_float */,
96 FALSE /* identifier_2_string */,
97 TRUE /* char_2_token */,
98 FALSE /* symbol_2_token */,
102 /* --- prototypes --- */
103 extern char* g_vsprintf (gchar *fmt, va_list *args, va_list *args2);
104 static GScannerHashVal* g_scanner_lookup_internal (GScanner *scanner,
105 const gchar *symbol);
106 static void g_scanner_get_token_ll (GScanner *scanner,
111 static void g_scanner_get_token_i (GScanner *scanner,
116 static void g_scanner_free_value (GTokenType *token_p,
120 gint g_scanner_char_2_num (guchar c,
122 static guchar g_scanner_peek_next_char(GScanner *scanner);
123 static guchar g_scanner_get_char (GScanner *scanner,
126 static void g_scanner_msg_handler (GScanner *scanner,
131 /* --- functions --- */
133 g_scanner_char_2_num (guchar c,
136 if (c >= '0' && c <= '9')
138 else if (c >= 'A' && c <= 'Z')
140 else if (c >= 'a' && c <= 'z')
152 g_scanner_new (GScannerConfig *config_templ)
154 register GScanner *scanner;
157 config_templ = &g_scanner_config_template;
159 scanner = g_new0 (GScanner, 1);
161 scanner->user_data = NULL;
162 scanner->input_name = NULL;
163 scanner->parse_errors = 0;
164 scanner->max_parse_errors = 0;
166 scanner->config = g_new0 (GScannerConfig, 1);
168 scanner->config->case_sensitive = config_templ->case_sensitive;
169 scanner->config->cset_skip_characters = config_templ->cset_skip_characters;
170 scanner->config->cset_identifier_first= config_templ->cset_identifier_first;
171 scanner->config->cset_identifier_nth = config_templ->cset_identifier_nth;
172 scanner->config->cpair_comment_single = config_templ->cpair_comment_single;
173 scanner->config->skip_comment_multi = config_templ->skip_comment_multi;
174 scanner->config->skip_comment_single = config_templ->skip_comment_single;
175 scanner->config->scan_comment_multi = config_templ->scan_comment_multi;
176 scanner->config->scan_identifier = config_templ->scan_identifier;
177 scanner->config->scan_identifier_1char= config_templ->scan_identifier_1char;
178 scanner->config->scan_identifier_NULL = config_templ->scan_identifier_NULL;
179 scanner->config->scan_symbols = config_templ->scan_symbols;
180 scanner->config->scan_binary = config_templ->scan_binary;
181 scanner->config->scan_octal = config_templ->scan_octal;
182 scanner->config->scan_float = config_templ->scan_float;
183 scanner->config->scan_hex = config_templ->scan_hex;
184 scanner->config->scan_hex_dollar = config_templ->scan_hex_dollar;
185 scanner->config->scan_string_sq = config_templ->scan_string_sq;
186 scanner->config->scan_string_dq = config_templ->scan_string_dq;
187 scanner->config->numbers_2_int = config_templ->numbers_2_int;
188 scanner->config->int_2_float = config_templ->int_2_float;
189 scanner->config->identifier_2_string = config_templ->identifier_2_string;
190 scanner->config->char_2_token = config_templ->char_2_token;
191 scanner->config->symbol_2_token = config_templ->symbol_2_token;
193 scanner->token = G_TOKEN_NONE;
194 scanner->value.v_int = 0;
196 scanner->position = 0;
198 scanner->next_token = G_TOKEN_NONE;
199 scanner->next_value.v_int = 0;
200 scanner->next_line = 1;
201 scanner->next_position = 0;
203 scanner->symbol_table = g_hash_table_new (g_str_hash, g_str_equal);
204 scanner->text = NULL;
205 scanner->text_len = 0;
206 scanner->input_fd = -1;
207 scanner->peeked_char = -1;
209 scanner->msg_handler = g_scanner_msg_handler;
215 g_scanner_destroy_symbol_table_entry (gpointer key,
224 g_scanner_destroy (GScanner *scanner)
226 g_return_if_fail (scanner != NULL);
228 g_hash_table_foreach (scanner->symbol_table,
229 g_scanner_destroy_symbol_table_entry, NULL);
230 g_hash_table_destroy (scanner->symbol_table);
231 g_scanner_free_value (&scanner->token, &scanner->value);
232 g_scanner_free_value (&scanner->next_token, &scanner->next_value);
233 g_free (scanner->config);
238 g_scanner_msg_handler (GScanner *scanner,
242 g_return_if_fail (scanner != NULL);
244 fprintf (stdout, "%s:%d: ", scanner->input_name, scanner->line);
246 fprintf (stdout, "error: ");
247 fprintf (stdout, "%s\n", message);
251 g_scanner_error (GScanner *scanner,
255 g_return_if_fail (scanner != NULL);
256 g_return_if_fail (format != NULL);
258 scanner->parse_errors++;
260 if (scanner->msg_handler)
265 va_start (args, format);
266 va_start (args2, format);
267 string = g_vsprintf ((gchar*) format, &args, &args2);
271 string = g_strdup (string);
273 scanner->msg_handler (scanner, string, TRUE);
280 g_scanner_warn (GScanner *scanner,
284 g_return_if_fail (scanner != NULL);
285 g_return_if_fail (format != NULL);
287 if (scanner->msg_handler)
292 va_start (args, format);
293 va_start (args2, format);
294 string = g_vsprintf ((gchar*) format, &args, &args2);
298 string = g_strdup (string);
300 scanner->msg_handler (scanner, string, FALSE);
307 g_scanner_input_file (GScanner *scanner,
310 g_return_if_fail (input_fd >= 0);
312 scanner->token = G_TOKEN_NONE;
313 scanner->value.v_int = 0;
315 scanner->position = 0;
316 scanner->next_token = G_TOKEN_NONE;
318 scanner->text = NULL;
319 scanner->text_len = 0;
320 scanner->input_fd = input_fd;
321 scanner->peeked_char = -1;
325 g_scanner_input_text (GScanner *scanner,
329 g_return_if_fail (text != NULL);
331 scanner->token = G_TOKEN_NONE;
332 scanner->value.v_int = 0;
334 scanner->position = 0;
335 scanner->next_token = G_TOKEN_NONE;
337 scanner->text = text;
338 scanner->text_len = text_len;
339 scanner->input_fd = -1;
340 scanner->peeked_char = -1;
344 g_scanner_add_symbol (GScanner *scanner,
348 register GScannerHashVal *hash_val;
350 g_return_if_fail (scanner != NULL);
351 g_return_if_fail (symbol != NULL);
353 hash_val = g_scanner_lookup_internal (scanner, symbol);
357 hash_val = g_new (GScannerHashVal, 1);
358 hash_val->key = g_strdup (symbol);
359 hash_val->value = value;
360 if (!scanner->config->case_sensitive)
364 l = strlen (hash_val->key);
365 for (i = 0; i < l; i++)
366 hash_val->key[i] = to_lower (hash_val->key[i]);
368 g_hash_table_insert (scanner->symbol_table, hash_val->key, hash_val);
371 hash_val->value = value;
375 g_scanner_lookup_symbol (GScanner *scanner,
378 register GScannerHashVal *hash_val;
380 g_return_val_if_fail (scanner != NULL, NULL);
385 hash_val = g_scanner_lookup_internal (scanner, symbol);
388 return hash_val->value;
394 g_scanner_foreach_internal (gpointer key,
398 register GScannerHashVal *hash_val;
399 register GHFunc func;
400 register gpointer func_data;
401 register gpointer *d;
408 func (key, hash_val->value, func_data);
412 g_scanner_foreach_symbol (GScanner *scanner,
418 g_return_if_fail (scanner != NULL);
420 d[0] = (gpointer)func;
423 g_hash_table_foreach (scanner->symbol_table, g_scanner_foreach_internal, d);
427 g_scanner_remove_symbol (GScanner *scanner,
430 register GScannerHashVal *hash_val;
432 g_return_if_fail (scanner != NULL);
434 hash_val = g_scanner_lookup_internal (scanner, symbol);
438 g_hash_table_remove (scanner->symbol_table, hash_val->key);
439 g_free (hash_val->key);
445 g_scanner_freeze_symbol_table (GScanner *scanner)
447 g_return_if_fail (scanner != NULL);
449 g_hash_table_freeze (scanner->symbol_table);
453 g_scanner_thaw_symbol_table (GScanner *scanner)
455 g_return_if_fail (scanner != NULL);
457 g_hash_table_thaw (scanner->symbol_table);
461 g_scanner_peek_next_token (GScanner *scanner)
463 g_return_val_if_fail (scanner != NULL, G_TOKEN_EOF);
465 if (scanner->next_token == G_TOKEN_NONE)
467 scanner->next_line = scanner->line;
468 scanner->next_position = scanner->position;
469 g_scanner_get_token_i (scanner,
470 &scanner->next_token,
471 &scanner->next_value,
473 &scanner->next_position);
476 return scanner->next_token;
480 g_scanner_get_next_token (GScanner *scanner)
482 g_return_val_if_fail (scanner != NULL, G_TOKEN_EOF);
484 if (scanner->next_token != G_TOKEN_NONE)
486 g_scanner_free_value (&scanner->token, &scanner->value);
488 scanner->token = scanner->next_token;
489 scanner->value = scanner->next_value;
490 scanner->line = scanner->next_line;
491 scanner->position = scanner->next_position;
492 scanner->next_token = G_TOKEN_NONE;
495 g_scanner_get_token_i (scanner,
501 return scanner->token;
505 g_scanner_cur_token (GScanner *scanner)
507 g_return_val_if_fail (scanner != NULL, G_TOKEN_EOF);
509 return scanner->token;
513 g_scanner_cur_value (GScanner *scanner)
518 g_return_val_if_fail (scanner != NULL, v);
520 return scanner->value;
524 g_scanner_cur_line (GScanner *scanner)
526 g_return_val_if_fail (scanner != NULL, 0);
528 return scanner->line;
532 g_scanner_cur_position (GScanner *scanner)
534 g_return_val_if_fail (scanner != NULL, 0);
536 return scanner->position;
540 g_scanner_eof (GScanner *scanner)
542 g_return_val_if_fail (scanner != NULL, TRUE);
544 return scanner->token == G_TOKEN_EOF;
547 static GScannerHashVal*
548 g_scanner_lookup_internal (GScanner *scanner,
551 register GScannerHashVal *hash_val;
553 if (!scanner->config->case_sensitive)
555 register gchar *buffer;
559 buffer = g_new (gchar, l + 1);
560 for (i = 0; i < l; i++)
561 buffer[i] = to_lower (symbol[i]);
563 hash_val = g_hash_table_lookup (scanner->symbol_table, buffer);
567 hash_val = g_hash_table_lookup (scanner->symbol_table, (gchar*) symbol);
573 g_scanner_peek_next_char (GScanner *scanner)
577 if (scanner->text_len)
579 fchar = scanner->text[0];
581 else if (scanner->input_fd >= 0)
583 if (scanner->peeked_char < 0)
589 count = read (scanner->input_fd, &fchar, 1);
591 while (count == -1 &&
598 scanner->peeked_char = fchar;
601 fchar = scanner->peeked_char;
610 g_scanner_get_char (GScanner *scanner,
616 if (scanner->text_len)
618 fchar = *(scanner->text++);
621 else if (scanner->input_fd >= 0)
623 if (scanner->peeked_char < 0)
629 count = read (scanner->input_fd, &fchar, 1);
631 while (count == -1 &&
634 if (count != 1 || fchar == 0)
637 scanner->peeked_char = 0;
642 fchar = scanner->peeked_char;
644 scanner->peeked_char = -1;
664 g_scanner_unexp_token (GScanner *scanner,
665 GTokenType expected_token,
666 const gchar *identifier_spec,
667 const gchar *symbol_spec,
668 const gchar *symbol_name,
669 const gchar *message,
672 register gchar *token_string;
673 register guint token_string_len;
674 register gchar *expected_string;
675 register guint expected_string_len;
676 register gchar *message_prefix;
677 register gboolean print_unexp;
678 void (*msg_handler) (GScanner*, const gchar*, ...);
680 g_return_if_fail (scanner != NULL);
683 msg_handler = g_scanner_error;
685 msg_handler = g_scanner_warn;
687 if (!identifier_spec)
688 identifier_spec = "identifier";
690 symbol_spec = "symbol";
692 token_string_len = 56;
693 token_string = g_new (gchar, token_string_len + 1);
694 expected_string_len = 64;
695 expected_string = g_new (gchar, expected_string_len + 1);
698 switch (scanner->token)
702 g_snprintf (token_string, token_string_len, "end of file");
705 default: /* 1 ... 255 */
706 if (scanner->token >= 1 && scanner->token <= 255)
708 if ((scanner->token >= ' ' && scanner->token <= '~') ||
709 strchr (scanner->config->cset_identifier_first, scanner->token) ||
710 strchr (scanner->config->cset_identifier_nth, scanner->token))
711 g_snprintf (token_string, expected_string_len, "character `%c'", scanner->token);
713 g_snprintf (token_string, expected_string_len, "character `\\%o'", scanner->token);
716 g_snprintf (token_string, token_string_len, "(unknown) token <%d>", scanner->token);
721 expected_token = G_TOKEN_NONE;
722 switch (scanner->value.v_error)
724 case G_ERR_UNEXP_EOF:
725 g_snprintf (token_string, token_string_len, "scanner: unexpected end of file");
728 case G_ERR_UNEXP_EOF_IN_STRING:
729 g_snprintf (token_string, token_string_len, "scanner: unterminated string constant");
732 case G_ERR_UNEXP_EOF_IN_COMMENT:
733 g_snprintf (token_string, token_string_len, "scanner: unterminated comment");
736 case G_ERR_NON_DIGIT_IN_CONST:
737 g_snprintf (token_string, token_string_len, "scanner: non digit in constant");
740 case G_ERR_FLOAT_RADIX:
741 g_snprintf (token_string, token_string_len, "scanner: invalid radix for floating constant");
744 case G_ERR_FLOAT_MALFORMED:
745 g_snprintf (token_string, token_string_len, "scanner: malformed floating constant");
748 case G_ERR_DIGIT_RADIX:
749 g_snprintf (token_string, token_string_len, "scanner: digit is beyond radix");
754 g_snprintf (token_string, token_string_len, "scanner: unknown error");
760 g_snprintf (token_string, token_string_len, "character `%c'", scanner->value.v_char);
764 if (expected_token == G_TOKEN_SYMBOL)
767 g_snprintf (token_string,
770 print_unexp ? "" : "invalid ",
774 g_snprintf (token_string,
777 print_unexp ? "" : "invalid ",
781 case G_TOKEN_IDENTIFIER:
782 if (expected_token == G_TOKEN_IDENTIFIER)
784 g_snprintf (token_string,
787 print_unexp ? "" : "invalid ",
789 scanner->value.v_string);
796 g_snprintf (token_string, token_string_len, "number `%ld'", scanner->value.v_int);
800 g_snprintf (token_string, token_string_len, "number `%.3f'", scanner->value.v_float);
804 g_snprintf (token_string,
806 "%sstring constant \"%s\"",
807 scanner->value.v_string[0] == 0 ? "empty " : "",
808 scanner->value.v_string);
809 token_string[token_string_len - 2] = '"';
810 token_string[token_string_len - 1] = 0;
813 case G_TOKEN_COMMENT_SINGLE:
814 case G_TOKEN_COMMENT_MULTI:
815 g_snprintf (token_string, token_string_len, "comment");
819 g_assert_not_reached ();
824 switch (expected_token)
826 default: /* 1 ... 255 */
827 if (expected_token >= 1 && expected_token <= 255)
829 if ((expected_token >= ' ' && expected_token <= '~') ||
830 strchr (scanner->config->cset_identifier_first, expected_token) ||
831 strchr (scanner->config->cset_identifier_nth, expected_token))
832 g_snprintf (expected_string, expected_string_len, "character `%c'", expected_token);
834 g_snprintf (expected_string, expected_string_len, "character `\\%o'", expected_token);
837 g_snprintf (expected_string, expected_string_len, "(unknown) token <%d>", expected_token);
841 g_snprintf (expected_string, expected_string_len, "number (integer)");
845 g_snprintf (expected_string, expected_string_len, "number (float)");
849 g_snprintf (expected_string, expected_string_len, "string constant");
853 g_snprintf (expected_string,
856 scanner->token == G_TOKEN_SYMBOL ? "valid " : "",
860 case G_TOKEN_IDENTIFIER:
861 g_snprintf (expected_string,
864 scanner->token == G_TOKEN_IDENTIFIER ? "valid " : "",
872 if (message && message[0] != 0)
873 message_prefix = " - ";
880 if (expected_token != G_TOKEN_NONE)
883 msg_handler (scanner,
884 "unexpected %s, expected %s%s%s",
890 msg_handler (scanner,
891 "%s, expected %s%s%s",
900 msg_handler (scanner,
906 msg_handler (scanner,
913 g_free (token_string);
914 g_free (expected_string);
918 g_scanner_stat_mode (const gchar *filename)
920 struct stat *stat_buf;
923 stat_buf = g_new0 (struct stat, 1);
925 lstat (filename, stat_buf);
927 st_mode = stat_buf->st_mode;
935 g_scanner_free_value (GTokenType *token_p,
941 case G_TOKEN_IDENTIFIER:
942 case G_TOKEN_IDENTIFIER_NULL:
943 case G_TOKEN_COMMENT_SINGLE:
944 case G_TOKEN_COMMENT_MULTI:
945 g_free (value_p->v_string);
952 *token_p = G_TOKEN_NONE;
956 g_scanner_get_token_i (GScanner *scanner,
964 g_scanner_free_value (token_p, value_p);
965 g_scanner_get_token_ll (scanner, token_p, value_p, line_p, position_p);
967 while (((*token_p > 0 && *token_p < 256) &&
968 strchr (scanner->config->cset_skip_characters, *token_p)) ||
969 (*token_p == G_TOKEN_CHAR &&
970 strchr (scanner->config->cset_skip_characters, value_p->v_char)) ||
971 (*token_p == G_TOKEN_COMMENT_MULTI &&
972 scanner->config->skip_comment_multi) ||
973 (*token_p == G_TOKEN_COMMENT_SINGLE &&
974 scanner->config->skip_comment_single));
978 case G_TOKEN_IDENTIFIER:
979 if (scanner->config->identifier_2_string)
980 *token_p = G_TOKEN_STRING;
984 if (scanner->config->symbol_2_token)
985 *token_p = (GTokenType) value_p->v_symbol;
991 if (scanner->config->numbers_2_int)
992 *token_p = G_TOKEN_INT;
999 if (*token_p == G_TOKEN_INT &&
1000 scanner->config->int_2_float)
1002 *token_p = G_TOKEN_FLOAT;
1003 value_p->v_float = value_p->v_int;
1010 g_scanner_get_token_ll (GScanner *scanner,
1011 GTokenType *token_p,
1016 register GScannerConfig *config;
1017 register gboolean in_comment_multi;
1018 register gboolean in_comment_single;
1019 register gboolean in_string_sq;
1020 register gboolean in_string_dq;
1022 register GTokenType token;
1023 register GValue value;
1024 register GString *gstring;
1026 config = scanner->config;
1027 (*value_p).v_int = 0;
1029 if (scanner->token == G_TOKEN_EOF ||
1030 (!scanner->text_len &&
1031 (scanner->input_fd < 0 ||
1032 scanner->peeked_char == 0)))
1034 *token_p = G_TOKEN_EOF;
1038 in_comment_multi = FALSE;
1039 in_comment_single = FALSE;
1040 in_string_sq = FALSE;
1041 in_string_dq = FALSE;
1046 register gboolean dotted_float = FALSE;
1048 ch = g_scanner_get_char (scanner, line_p, position_p);
1051 token = G_TOKEN_NONE;
1053 /* this is *evil*, but needed ;(
1054 * we first check for identifier first character, because it
1055 * might interfere with other key chars like slashes or numbers
1057 if (config->scan_identifier &&
1058 ch && strchr (config->cset_identifier_first, ch))
1059 goto identifier_precedence;
1063 register gboolean in_number;
1064 static gchar *endptr;
1067 token = G_TOKEN_EOF;
1073 if (!config->scan_comment_multi ||
1074 g_scanner_peek_next_char (scanner) != '*')
1076 g_scanner_get_char (scanner, line_p, position_p);
1077 token = G_TOKEN_COMMENT_MULTI;
1078 in_comment_multi = TRUE;
1079 gstring = g_string_new ("");
1080 while ((ch = g_scanner_get_char (scanner, line_p, position_p)) != 0)
1082 if (ch == '*' && g_scanner_peek_next_char (scanner) == '/')
1084 g_scanner_get_char (scanner, line_p, position_p);
1085 in_comment_multi = FALSE;
1089 gstring = g_string_append_c (gstring, ch);
1095 if (!config->scan_string_sq)
1097 token = G_TOKEN_STRING;
1098 in_string_sq = TRUE;
1099 gstring = g_string_new ("");
1100 while ((ch = g_scanner_get_char (scanner, line_p, position_p)) != 0)
1104 in_string_sq = FALSE;
1108 gstring = g_string_append_c (gstring, ch);
1114 if (!config->scan_string_dq)
1116 token = G_TOKEN_STRING;
1117 in_string_dq = TRUE;
1118 gstring = g_string_new ("");
1119 while ((ch = g_scanner_get_char (scanner, line_p, position_p)) != 0)
1123 in_string_dq = FALSE;
1130 ch = g_scanner_get_char (scanner, line_p, position_p);
1134 register guint fchar;
1140 gstring = g_string_append_c (gstring, '\\');
1144 gstring = g_string_append_c (gstring, '\n');
1148 gstring = g_string_append_c (gstring, '\t');
1152 gstring = g_string_append_c (gstring, '\r');
1156 gstring = g_string_append_c (gstring, '\b');
1160 gstring = g_string_append_c (gstring, '\f');
1172 fchar = g_scanner_peek_next_char (scanner);
1173 if (fchar >= '0' && fchar <= '7')
1175 ch = g_scanner_get_char (scanner, line_p, position_p);
1176 i= i * 8 + ch - '0';
1177 fchar = g_scanner_peek_next_char (scanner);
1178 if (fchar >= '0' && fchar <= '7')
1180 ch = g_scanner_get_char (scanner, line_p, position_p);
1181 i = i * 8 + ch - '0';
1184 gstring = g_string_append_c (gstring, i);
1188 gstring = g_string_append_c (gstring, ch);
1193 gstring = g_string_append_c (gstring, ch);
1200 if (!config->scan_float)
1202 token = G_TOKEN_FLOAT;
1203 dotted_float = TRUE;
1204 ch = g_scanner_get_char (scanner, line_p, position_p);
1205 goto number_parsing;
1208 if (!config->scan_hex_dollar)
1210 token = G_TOKEN_HEX;
1211 ch = g_scanner_get_char (scanner, line_p, position_p);
1212 goto number_parsing;
1215 if (config->scan_octal)
1216 token = G_TOKEN_OCTAL;
1218 token = G_TOKEN_INT;
1219 ch = g_scanner_peek_next_char (scanner);
1220 if (config->scan_hex && (ch == 'x' || ch == 'X'))
1222 token = G_TOKEN_HEX;
1223 g_scanner_get_char (scanner, line_p, position_p);
1224 ch = g_scanner_get_char (scanner, line_p, position_p);
1227 token = G_TOKEN_ERROR;
1228 value.v_error = G_ERR_UNEXP_EOF;
1232 if (g_scanner_char_2_num (ch, 16) < 0)
1234 token = G_TOKEN_ERROR;
1235 value.v_error = G_ERR_DIGIT_RADIX;
1240 else if (config->scan_binary && (ch == 'b' || ch == 'B'))
1242 token = G_TOKEN_BINARY;
1243 g_scanner_get_char (scanner, line_p, position_p);
1244 ch = g_scanner_get_char (scanner, line_p, position_p);
1247 token = G_TOKEN_ERROR;
1248 value.v_error = G_ERR_UNEXP_EOF;
1252 if (g_scanner_char_2_num (ch, 10) < 0)
1254 token = G_TOKEN_ERROR;
1255 value.v_error = G_ERR_NON_DIGIT_IN_CONST;
1273 if (token == G_TOKEN_NONE)
1274 token = G_TOKEN_INT;
1276 gstring = g_string_new (dotted_float ? "0." : "");
1277 gstring = g_string_append_c (gstring, ch);
1281 register gboolean is_E;
1283 is_E = (ch == 'e' || ch == 'E') && token == G_TOKEN_FLOAT;
1284 ch = g_scanner_peek_next_char (scanner);
1286 if (g_scanner_char_2_num (ch, 36) >= 0 ||
1287 (config->scan_float && ch == '.') ||
1288 (is_E && ch == '+') ||
1289 (is_E && ch == '-') )
1290 ch = g_scanner_get_char (scanner, line_p, position_p);
1298 if (token != G_TOKEN_INT &&
1299 token != G_TOKEN_OCTAL)
1301 token = G_TOKEN_ERROR;
1302 if (token == G_TOKEN_FLOAT)
1303 value.v_error = G_ERR_FLOAT_MALFORMED;
1305 value.v_error = G_ERR_FLOAT_RADIX;
1310 token = G_TOKEN_FLOAT;
1311 gstring = g_string_append_c (gstring, ch);
1325 gstring = g_string_append_c (gstring, ch);
1330 if (token != G_TOKEN_FLOAT)
1332 token = G_TOKEN_ERROR;
1333 value.v_error = G_ERR_NON_DIGIT_IN_CONST;
1337 gstring = g_string_append_c (gstring, ch);
1342 if ((token != G_TOKEN_HEX && !config->scan_float) ||
1343 (token != G_TOKEN_HEX &&
1344 token != G_TOKEN_OCTAL &&
1345 token != G_TOKEN_FLOAT &&
1346 token != G_TOKEN_INT))
1348 token = G_TOKEN_ERROR;
1349 value.v_error = G_ERR_NON_DIGIT_IN_CONST;
1354 if (token != G_TOKEN_HEX)
1355 token = G_TOKEN_FLOAT;
1356 gstring = g_string_append_c (gstring, ch);
1361 if (token != G_TOKEN_HEX)
1363 token = G_TOKEN_ERROR;
1364 value.v_error = G_ERR_NON_DIGIT_IN_CONST;
1368 gstring = g_string_append_c (gstring, ch);
1375 case G_TOKEN_BINARY:
1376 value.v_binary = strtol (gstring->str, &endptr, 2);
1380 value.v_octal = strtol (gstring->str, &endptr, 8);
1384 value.v_int = strtol (gstring->str, &endptr, 10);
1388 value.v_float = g_strtod (gstring->str, &endptr);
1392 value.v_hex = strtol (gstring->str, &endptr, 16);
1398 if (endptr && *endptr)
1400 token = G_TOKEN_ERROR;
1401 if (*endptr == 'e' || *endptr == 'E')
1402 value.v_error = G_ERR_NON_DIGIT_IN_CONST;
1404 value.v_error = G_ERR_DIGIT_RADIX;
1406 g_string_free (gstring, TRUE);
1413 if (config->cpair_comment_single &&
1414 ch == config->cpair_comment_single[0])
1416 token = G_TOKEN_COMMENT_SINGLE;
1417 in_comment_single = TRUE;
1418 gstring = g_string_new ("");
1419 while ((ch = g_scanner_get_char (scanner,
1423 if (ch == config->cpair_comment_single[1])
1425 in_comment_single = FALSE;
1430 gstring = g_string_append_c (gstring, ch);
1434 else if (config->scan_identifier && ch &&
1435 strchr (config->cset_identifier_first, ch))
1437 identifier_precedence:
1439 if (config->cset_identifier_nth && ch &&
1440 strchr (config->cset_identifier_nth,
1441 g_scanner_peek_next_char (scanner)))
1443 token = G_TOKEN_IDENTIFIER;
1444 gstring = g_string_new ("");
1445 gstring = g_string_append_c (gstring, ch);
1448 ch = g_scanner_get_char (scanner, line_p, position_p);
1449 gstring = g_string_append_c (gstring, ch);
1450 ch = g_scanner_peek_next_char (scanner);
1452 while (ch && strchr (config->cset_identifier_nth, ch));
1455 else if (config->scan_identifier_1char)
1457 token = G_TOKEN_IDENTIFIER;
1458 value.v_identifier = g_new0 (gchar, 2);
1459 value.v_identifier[0] = ch;
1465 if (config->char_2_token)
1469 token = G_TOKEN_CHAR;
1476 g_assert (ch == 0 && token != G_TOKEN_NONE);
1480 if (in_comment_multi ||
1481 in_comment_single ||
1485 token = G_TOKEN_ERROR;
1488 g_string_free (gstring, TRUE);
1492 if (in_comment_multi || in_comment_single)
1493 value.v_error = G_ERR_UNEXP_EOF_IN_COMMENT;
1494 else if (in_string_sq || in_string_dq)
1495 value.v_error = G_ERR_UNEXP_EOF_IN_STRING;
1500 value.v_string = gstring->str;
1501 g_string_free (gstring, FALSE);
1505 if (token == G_TOKEN_IDENTIFIER &&
1506 config->scan_symbols)
1508 register GScannerHashVal *hash_val;
1510 hash_val = g_scanner_lookup_internal (scanner, value.v_identifier);
1514 g_free (value.v_identifier);
1515 token = G_TOKEN_SYMBOL;
1516 value.v_symbol = hash_val->value;
1520 if (token == G_TOKEN_IDENTIFIER &&
1521 config->scan_identifier_NULL &&
1522 strlen (value.v_identifier) == 4)
1524 gchar *null_upper = "NULL";
1525 gchar *null_lower = "null";
1527 if (scanner->config->case_sensitive)
1529 if (value.v_identifier[0] == null_upper[0] &&
1530 value.v_identifier[1] == null_upper[1] &&
1531 value.v_identifier[2] == null_upper[2] &&
1532 value.v_identifier[3] == null_upper[3])
1533 token = G_TOKEN_IDENTIFIER_NULL;
1537 if ((value.v_identifier[0] == null_upper[0] ||
1538 value.v_identifier[0] == null_lower[0]) &&
1539 (value.v_identifier[1] == null_upper[1] ||
1540 value.v_identifier[1] == null_lower[1]) &&
1541 (value.v_identifier[2] == null_upper[2] ||
1542 value.v_identifier[2] == null_lower[2]) &&
1543 (value.v_identifier[3] == null_upper[3] ||
1544 value.v_identifier[3] == null_lower[3]))
1545 token = G_TOKEN_IDENTIFIER_NULL;