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/*
*
* Copyright (C) 2009-2011 Colomban Wendling <ban@herbesfolles.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef H_CTPL_LEXER_PRIVATE_H
#define H_CTPL_LEXER_PRIVATE_H
#include <glib.h>
#include "ctpl-token-private.h"
G_BEGIN_DECLS
/*
* SECTION: lexer-private
* @short_description: Private lexer API
* @include: ctpl/lexer.h
* @include: ctpl/lexer-private.h
*
* Provides a few character categorization macros and functions.
*/
/*
* CTPL_BLANK_CHARS:
*
* Characters treated as blank, commonly used as separator.
*/
#define CTPL_BLANK_CHARS " \t\v\r\n"
/* number of bytes in %CTPL_BLANK_CHARS */
#define CTPL_BLANK_CHARS_LEN ((sizeof CTPL_BLANK_CHARS) - 1)
/*
* ctpl_is_blank:
* @c: A character
*
* Checks whether a character is one from %CTPL_BLANK_CHARS, but can be more
* optimized than a simple search in the string.
*
* Returns: %TRUE is @c is a blank character, %FALSE otherwise.
*
* Since: 0.2
*/
#define ctpl_is_blank(c) ((c) == ' ' || \
(c) == '\t' || \
(c) == '\v' || \
(c) == '\r' || \
(c) == '\n')
/*
* CTPL_SYMBOL_CHARS:
*
* Characters that are valid for a symbol.
*/
#define CTPL_SYMBOL_CHARS "abcdefghijklmnopqrstuvwxyz" \
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
"0123456789" \
"_"
/* number of bytes in %CTPL_SYMBOL_CHARS */
#define CTPL_SYMBOL_CHARS_LEN ((sizeof CTPL_SYMBOL_CHARS) - 1)
/*
* ctpl_is_symbol:
* @c: A character
*
* Checks whether a character is one from %CTPL_SYMBOL_CHARS, but can be more
* optimized than a simple search in the string.
*
* Returns: %TRUE is @c is a symbol character, %FALSE otherwise.
*
* Since: 0.2
*/
#define ctpl_is_symbol(c) (((c) >= 'a' && (c) <= 'z') || \
((c) >= 'A' && (c) <= 'Z') || \
((c) >= '0' && (c) <= '9') || \
(c) == '_')
/*
* CTPL_ESCAPE_CHAR:
*
* Character used to escape a special character.
*/
#define CTPL_ESCAPE_CHAR '\\'
/*
* CTPL_STRING_DELIMITER_CHAR:
*
* Character surrounding string literals.
*/
#define CTPL_STRING_DELIMITER_CHAR '"'
/*
* CTPL_OPERATOR_CHARS:
*
* Characters valid for an operator.
*/
#define CTPL_OPERATOR_CHARS "+-/*=><%!&|"
/*
* CTPL_OPERAND_CHARS:
*
* Characters valid for an operand
*/
#define CTPL_OPERAND_CHARS "." /* for floating point values */ \
"+-" /* for signs */ \
CTPL_BLANK_CHARS \
CTPL_SYMBOL_CHARS
/*
* CTPL_EXPR_CHARS:
*
* Characters valid inside an expression
*/
#define CTPL_EXPR_CHARS "()" \
CTPL_OPERATOR_CHARS \
CTPL_OPERAND_CHARS
/*
* CTPL_START_CHAR:
*
* Character delimiting the start of language tokens from raw data.
*/
#define CTPL_START_CHAR '{'
/*
* CTPL_END_CHAR:
*
* Character delimiting the end of language tokens from raw data.
*/
#define CTPL_END_CHAR '}'
G_GNUC_INTERNAL
const gchar *ctpl_operator_to_string (CtplOperator op);
G_GNUC_INTERNAL
CtplOperator ctpl_operator_from_string (const gchar *str,
gssize len,
gsize *operator_len);
G_END_DECLS
#endif /* guard */
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