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Editing: gscanner.h
/* GLIB - Library of useful routines for C programming * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ /* * Modified by the GLib Team and others 1997-2000. See the AUTHORS * file for a list of people on the GLib Team. See the ChangeLog * files for a list of changes. These files are distributed with * GLib at ftp://ftp.gtk.org/pub/gtk/. */ #ifndef __G_SCANNER_H__ #define __G_SCANNER_H__ #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) #error "Only <glib.h> can be included directly." #endif #include <glib/gdataset.h> #include <glib/ghash.h> G_BEGIN_DECLS typedef struct _GScanner GScanner; typedef struct _GScannerConfig GScannerConfig; typedef union _GTokenValue GTokenValue; typedef void (*GScannerMsgFunc) (GScanner *scanner, gchar *message, gboolean error); /* GScanner: Flexible lexical scanner for general purpose. */ /* Character sets */ #define G_CSET_A_2_Z "ABCDEFGHIJKLMNOPQRSTUVWXYZ" #define G_CSET_a_2_z "abcdefghijklmnopqrstuvwxyz" #define G_CSET_DIGITS "0123456789" #define G_CSET_LATINC "\300\301\302\303\304\305\306"\ "\307\310\311\312\313\314\315\316\317\320"\ "\321\322\323\324\325\326"\ "\330\331\332\333\334\335\336" #define G_CSET_LATINS "\337\340\341\342\343\344\345\346"\ "\347\350\351\352\353\354\355\356\357\360"\ "\361\362\363\364\365\366"\ "\370\371\372\373\374\375\376\377" /* Error types */ typedef enum { G_ERR_UNKNOWN, G_ERR_UNEXP_EOF, G_ERR_UNEXP_EOF_IN_STRING, G_ERR_UNEXP_EOF_IN_COMMENT, G_ERR_NON_DIGIT_IN_CONST, G_ERR_DIGIT_RADIX, G_ERR_FLOAT_RADIX, G_ERR_FLOAT_MALFORMED } GErrorType; /* Token types */ typedef enum { G_TOKEN_EOF = 0, G_TOKEN_LEFT_PAREN = '(', G_TOKEN_RIGHT_PAREN = ')', G_TOKEN_LEFT_CURLY = '{', G_TOKEN_RIGHT_CURLY = '}', G_TOKEN_LEFT_BRACE = '[', G_TOKEN_RIGHT_BRACE = ']', G_TOKEN_EQUAL_SIGN = '=', G_TOKEN_COMMA = ',', G_TOKEN_NONE = 256, G_TOKEN_ERROR, G_TOKEN_CHAR, G_TOKEN_BINARY, G_TOKEN_OCTAL, G_TOKEN_INT, G_TOKEN_HEX, G_TOKEN_FLOAT, G_TOKEN_STRING, G_TOKEN_SYMBOL, G_TOKEN_IDENTIFIER, G_TOKEN_IDENTIFIER_NULL, G_TOKEN_COMMENT_SINGLE, G_TOKEN_COMMENT_MULTI, /*< private >*/ G_TOKEN_LAST } GTokenType; union _GTokenValue { gpointer v_symbol; gchar *v_identifier; gulong v_binary; gulong v_octal; gulong v_int; guint64 v_int64; gdouble v_float; gulong v_hex; gchar *v_string; gchar *v_comment; guchar v_char; guint v_error; }; struct _GScannerConfig { /* Character sets */ gchar *cset_skip_characters; /* default: " \t\n" */ gchar *cset_identifier_first; gchar *cset_identifier_nth; gchar *cpair_comment_single; /* default: "#\n" */ /* Should symbol lookup work case sensitive? */ guint case_sensitive : 1; /* Boolean values to be adjusted "on the fly" * to configure scanning behaviour. */ guint skip_comment_multi : 1; /* C like comment */ guint skip_comment_single : 1; /* single line comment */ guint scan_comment_multi : 1; /* scan multi line comments? */ guint scan_identifier : 1; guint scan_identifier_1char : 1; guint scan_identifier_NULL : 1; guint scan_symbols : 1; guint scan_binary : 1; guint scan_octal : 1; guint scan_float : 1; guint scan_hex : 1; /* '0x0ff0' */ guint scan_hex_dollar : 1; /* '$0ff0' */ guint scan_string_sq : 1; /* string: 'anything' */ guint scan_string_dq : 1; /* string: "\\-escapes!\n" */ guint numbers_2_int : 1; /* bin, octal, hex => int */ guint int_2_float : 1; /* int => G_TOKEN_FLOAT? */ guint identifier_2_string : 1; guint char_2_token : 1; /* return G_TOKEN_CHAR? */ guint symbol_2_token : 1; guint scope_0_fallback : 1; /* try scope 0 on lookups? */ guint store_int64 : 1; /* use value.v_int64 rather than v_int */ /*< private >*/ guint padding_dummy; }; struct _GScanner { /* unused fields */ gpointer user_data; guint max_parse_errors; /* g_scanner_error() increments this field */ guint parse_errors; /* name of input stream, featured by the default message handler */ const gchar *input_name; /* quarked data */ GData *qdata; /* link into the scanner configuration */ GScannerConfig *config; /* fields filled in after g_scanner_get_next_token() */ GTokenType token; GTokenValue value; guint line; guint position; /* fields filled in after g_scanner_peek_next_token() */ GTokenType next_token; GTokenValue next_value; guint next_line; guint next_position; /*< private >*/ /* to be considered private */ GHashTable *symbol_table; gint input_fd; const gchar *text; const gchar *text_end; gchar *buffer; guint scope_id; /*< public >*/ /* handler function for _warn and _error */ GScannerMsgFunc msg_handler; }; GLIB_AVAILABLE_IN_ALL GScanner* g_scanner_new (const GScannerConfig *config_templ); GLIB_AVAILABLE_IN_ALL void g_scanner_destroy (GScanner *scanner); GLIB_AVAILABLE_IN_ALL void g_scanner_input_file (GScanner *scanner, gint input_fd); GLIB_AVAILABLE_IN_ALL void g_scanner_sync_file_offset (GScanner *scanner); GLIB_AVAILABLE_IN_ALL void g_scanner_input_text (GScanner *scanner, const gchar *text, guint text_len); GLIB_AVAILABLE_IN_ALL GTokenType g_scanner_get_next_token (GScanner *scanner); GLIB_AVAILABLE_IN_ALL GTokenType g_scanner_peek_next_token (GScanner *scanner); GLIB_AVAILABLE_IN_ALL GTokenType g_scanner_cur_token (GScanner *scanner); GLIB_AVAILABLE_IN_ALL GTokenValue g_scanner_cur_value (GScanner *scanner); GLIB_AVAILABLE_IN_ALL guint g_scanner_cur_line (GScanner *scanner); GLIB_AVAILABLE_IN_ALL guint g_scanner_cur_position (GScanner *scanner); GLIB_AVAILABLE_IN_ALL gboolean g_scanner_eof (GScanner *scanner); GLIB_AVAILABLE_IN_ALL guint g_scanner_set_scope (GScanner *scanner, guint scope_id); GLIB_AVAILABLE_IN_ALL void g_scanner_scope_add_symbol (GScanner *scanner, guint scope_id, const gchar *symbol, gpointer value); GLIB_AVAILABLE_IN_ALL void g_scanner_scope_remove_symbol (GScanner *scanner, guint scope_id, const gchar *symbol); GLIB_AVAILABLE_IN_ALL gpointer g_scanner_scope_lookup_symbol (GScanner *scanner, guint scope_id, const gchar *symbol); GLIB_AVAILABLE_IN_ALL void g_scanner_scope_foreach_symbol (GScanner *scanner, guint scope_id, GHFunc func, gpointer user_data); GLIB_AVAILABLE_IN_ALL gpointer g_scanner_lookup_symbol (GScanner *scanner, const gchar *symbol); GLIB_AVAILABLE_IN_ALL void g_scanner_unexp_token (GScanner *scanner, GTokenType expected_token, const gchar *identifier_spec, const gchar *symbol_spec, const gchar *symbol_name, const gchar *message, gint is_error); GLIB_AVAILABLE_IN_ALL void g_scanner_error (GScanner *scanner, const gchar *format, ...) G_GNUC_PRINTF (2,3); GLIB_AVAILABLE_IN_ALL void g_scanner_warn (GScanner *scanner, const gchar *format, ...) G_GNUC_PRINTF (2,3); /* keep downward source compatibility */ #define g_scanner_add_symbol( scanner, symbol, value ) G_STMT_START { \ g_scanner_scope_add_symbol ((scanner), 0, (symbol), (value)); \ } G_STMT_END GLIB_DEPRECATED_MACRO_IN_2_26_FOR(g_scanner_scope_add_symbol) #define g_scanner_remove_symbol( scanner, symbol ) G_STMT_START { \ g_scanner_scope_remove_symbol ((scanner), 0, (symbol)); \ } G_STMT_END GLIB_DEPRECATED_MACRO_IN_2_26_FOR(g_scanner_scope_remove_symbol) #define g_scanner_foreach_symbol( scanner, func, data ) G_STMT_START { \ g_scanner_scope_foreach_symbol ((scanner), 0, (func), (data)); \ } G_STMT_END GLIB_DEPRECATED_MACRO_IN_2_26_FOR(g_scanner_scope_foreach_symbol) /* The following two functions are deprecated and will be removed in * the next major release. They do no good. */ #define g_scanner_freeze_symbol_table(scanner) ((void)0) GLIB_DEPRECATED_MACRO_IN_2_26 #define g_scanner_thaw_symbol_table(scanner) ((void)0) GLIB_DEPRECATED_MACRO_IN_2_26 G_END_DECLS #endif /* __G_SCANNER_H__ */
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