mirror of
https://gitlab.gnome.org/GNOME/glib.git
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9599c06203
Wed Jul 18 19:42:31 2001 Tim Janik <timj@gtk.org>
* gtype.h: if __GNUC__ is defined, inline a test for an exact type
match for instances and classes in G_TYPE_CHECK_INSTANCE_TYPE() and
G_TYPE_CHECK_CLASS_TYPE() before calling g_type_instance_is_a().
Sun Jul 29 16:08:17 2001 Tim Janik <timj@gtk.org>
* glib/gscanner.[hc]: removed deprecated g_scanner_stat_mode().
* glib/gscanner.c (g_scanner_msg_handler): by default, print scanner
errors and warnings to stderr.
271 lines
7.8 KiB
C
271 lines
7.8 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GLib Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GLib at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __G_SCANNER_H__
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#define __G_SCANNER_H__
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#include <glib/ghash.h>
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G_BEGIN_DECLS
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typedef struct _GScanner GScanner;
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typedef struct _GScannerConfig GScannerConfig;
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typedef union _GTokenValue GTokenValue;
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typedef void (*GScannerMsgFunc) (GScanner *scanner,
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gchar *message,
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gint error);
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/* GScanner: Flexible lexical scanner for general purpose.
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*/
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/* Character sets */
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#define G_CSET_A_2_Z "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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#define G_CSET_a_2_z "abcdefghijklmnopqrstuvwxyz"
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#define G_CSET_DIGITS "0123456789"
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#define G_CSET_LATINC "\300\301\302\303\304\305\306"\
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"\307\310\311\312\313\314\315\316\317\320"\
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"\321\322\323\324\325\326"\
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"\330\331\332\333\334\335\336"
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#define G_CSET_LATINS "\337\340\341\342\343\344\345\346"\
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"\347\350\351\352\353\354\355\356\357\360"\
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"\361\362\363\364\365\366"\
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"\370\371\372\373\374\375\376\377"
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/* Error types */
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typedef enum
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{
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G_ERR_UNKNOWN,
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G_ERR_UNEXP_EOF,
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G_ERR_UNEXP_EOF_IN_STRING,
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G_ERR_UNEXP_EOF_IN_COMMENT,
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G_ERR_NON_DIGIT_IN_CONST,
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G_ERR_DIGIT_RADIX,
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G_ERR_FLOAT_RADIX,
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G_ERR_FLOAT_MALFORMED
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} GErrorType;
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/* Token types */
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typedef enum
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{
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G_TOKEN_EOF = 0,
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G_TOKEN_LEFT_PAREN = '(',
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G_TOKEN_RIGHT_PAREN = ')',
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G_TOKEN_LEFT_CURLY = '{',
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G_TOKEN_RIGHT_CURLY = '}',
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G_TOKEN_LEFT_BRACE = '[',
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G_TOKEN_RIGHT_BRACE = ']',
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G_TOKEN_EQUAL_SIGN = '=',
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G_TOKEN_COMMA = ',',
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G_TOKEN_NONE = 256,
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G_TOKEN_ERROR,
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G_TOKEN_CHAR,
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G_TOKEN_BINARY,
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G_TOKEN_OCTAL,
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G_TOKEN_INT,
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G_TOKEN_HEX,
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G_TOKEN_FLOAT,
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G_TOKEN_STRING,
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G_TOKEN_SYMBOL,
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G_TOKEN_IDENTIFIER,
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G_TOKEN_IDENTIFIER_NULL,
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G_TOKEN_COMMENT_SINGLE,
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G_TOKEN_COMMENT_MULTI,
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G_TOKEN_LAST
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} GTokenType;
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union _GTokenValue
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{
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gpointer v_symbol;
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gchar *v_identifier;
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gulong v_binary;
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gulong v_octal;
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gulong v_int;
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gdouble v_float;
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gulong v_hex;
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gchar *v_string;
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gchar *v_comment;
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guchar v_char;
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guint v_error;
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};
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struct _GScannerConfig
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{
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/* Character sets
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*/
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gchar *cset_skip_characters; /* default: " \t\n" */
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gchar *cset_identifier_first;
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gchar *cset_identifier_nth;
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gchar *cpair_comment_single; /* default: "#\n" */
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/* Should symbol lookup work case sensitive?
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*/
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guint case_sensitive : 1;
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/* Boolean values to be adjusted "on the fly"
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* to configure scanning behaviour.
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*/
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guint skip_comment_multi : 1; /* C like comment */
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guint skip_comment_single : 1; /* single line comment */
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guint scan_comment_multi : 1; /* scan multi line comments? */
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guint scan_identifier : 1;
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guint scan_identifier_1char : 1;
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guint scan_identifier_NULL : 1;
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guint scan_symbols : 1;
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guint scan_binary : 1;
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guint scan_octal : 1;
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guint scan_float : 1;
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guint scan_hex : 1; /* `0x0ff0' */
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guint scan_hex_dollar : 1; /* `$0ff0' */
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guint scan_string_sq : 1; /* string: 'anything' */
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guint scan_string_dq : 1; /* string: "\\-escapes!\n" */
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guint numbers_2_int : 1; /* bin, octal, hex => int */
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guint int_2_float : 1; /* int => G_TOKEN_FLOAT? */
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guint identifier_2_string : 1;
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guint char_2_token : 1; /* return G_TOKEN_CHAR? */
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guint symbol_2_token : 1;
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guint scope_0_fallback : 1; /* try scope 0 on lookups? */
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};
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struct _GScanner
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{
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/* unused fields */
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gpointer user_data;
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guint max_parse_errors;
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/* g_scanner_error() increments this field */
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guint parse_errors;
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/* name of input stream, featured by the default message handler */
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const gchar *input_name;
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/* quarked data */
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GData *qdata;
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/* link into the scanner configuration */
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GScannerConfig *config;
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/* fields filled in after g_scanner_get_next_token() */
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GTokenType token;
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GTokenValue value;
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guint line;
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guint position;
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/* fields filled in after g_scanner_peek_next_token() */
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GTokenType next_token;
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GTokenValue next_value;
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guint next_line;
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guint next_position;
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/* to be considered private */
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GHashTable *symbol_table;
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gint input_fd;
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const gchar *text;
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const gchar *text_end;
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gchar *buffer;
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guint scope_id;
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/* handler function for _warn and _error */
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GScannerMsgFunc msg_handler;
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};
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GScanner* g_scanner_new (const GScannerConfig *config_templ);
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void g_scanner_destroy (GScanner *scanner);
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void g_scanner_input_file (GScanner *scanner,
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gint input_fd);
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void g_scanner_sync_file_offset (GScanner *scanner);
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void g_scanner_input_text (GScanner *scanner,
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const gchar *text,
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guint text_len);
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GTokenType g_scanner_get_next_token (GScanner *scanner);
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GTokenType g_scanner_peek_next_token (GScanner *scanner);
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GTokenType g_scanner_cur_token (GScanner *scanner);
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GTokenValue g_scanner_cur_value (GScanner *scanner);
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guint g_scanner_cur_line (GScanner *scanner);
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guint g_scanner_cur_position (GScanner *scanner);
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gboolean g_scanner_eof (GScanner *scanner);
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guint g_scanner_set_scope (GScanner *scanner,
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guint scope_id);
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void g_scanner_scope_add_symbol (GScanner *scanner,
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guint scope_id,
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const gchar *symbol,
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gpointer value);
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void g_scanner_scope_remove_symbol (GScanner *scanner,
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guint scope_id,
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const gchar *symbol);
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gpointer g_scanner_scope_lookup_symbol (GScanner *scanner,
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guint scope_id,
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const gchar *symbol);
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void g_scanner_scope_foreach_symbol (GScanner *scanner,
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guint scope_id,
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GHFunc func,
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gpointer user_data);
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gpointer g_scanner_lookup_symbol (GScanner *scanner,
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const gchar *symbol);
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void g_scanner_unexp_token (GScanner *scanner,
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GTokenType expected_token,
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const gchar *identifier_spec,
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const gchar *symbol_spec,
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const gchar *symbol_name,
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const gchar *message,
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gint is_error);
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void g_scanner_error (GScanner *scanner,
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const gchar *format,
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...) G_GNUC_PRINTF (2,3);
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void g_scanner_warn (GScanner *scanner,
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const gchar *format,
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...) G_GNUC_PRINTF (2,3);
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/* keep downward source compatibility */
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#define g_scanner_add_symbol( scanner, symbol, value ) G_STMT_START { \
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g_scanner_scope_add_symbol ((scanner), 0, (symbol), (value)); \
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} G_STMT_END
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#define g_scanner_remove_symbol( scanner, symbol ) G_STMT_START { \
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g_scanner_scope_remove_symbol ((scanner), 0, (symbol)); \
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} G_STMT_END
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#define g_scanner_foreach_symbol( scanner, func, data ) G_STMT_START { \
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g_scanner_scope_foreach_symbol ((scanner), 0, (func), (data)); \
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} G_STMT_END
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#ifndef G_DISABLE_DEPRECATED
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/* The following two functions are deprecated and will be removed in
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* the next major release. They do no good. */
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#define g_scanner_freeze_symbol_table(scanner) ((void)0)
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#define g_scanner_thaw_symbol_table(scanner) ((void)0)
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#endif /* G_DISABLE_DEPRECATED */
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G_END_DECLS
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#endif /* __G_SCANNER_H__ */
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